Nothing Special   »   [go: up one dir, main page]

JP6119074B2 - Construction method and rebuilding method - Google Patents

Construction method and rebuilding method Download PDF

Info

Publication number
JP6119074B2
JP6119074B2 JP2012266891A JP2012266891A JP6119074B2 JP 6119074 B2 JP6119074 B2 JP 6119074B2 JP 2012266891 A JP2012266891 A JP 2012266891A JP 2012266891 A JP2012266891 A JP 2012266891A JP 6119074 B2 JP6119074 B2 JP 6119074B2
Authority
JP
Japan
Prior art keywords
underground
existing
building
retaining wall
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2012266891A
Other languages
Japanese (ja)
Other versions
JP2014114540A (en
Inventor
弘文 松塚
弘文 松塚
秀剛 塩澤
秀剛 塩澤
正毅 中島
正毅 中島
林 誠
誠 林
和生 穐山
和生 穐山
浩一 永野
浩一 永野
重人 渡邊
重人 渡邊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Corp
Original Assignee
Takenaka Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takenaka Corp filed Critical Takenaka Corp
Priority to JP2012266891A priority Critical patent/JP6119074B2/en
Publication of JP2014114540A publication Critical patent/JP2014114540A/en
Application granted granted Critical
Publication of JP6119074B2 publication Critical patent/JP6119074B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Working Measures On Existing Buildindgs (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Description

本発明は、築方法、及び、建替工法に関し、特に、外周部に配される柱部、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される物の建築方法、及び、該建物を既存建物に替えて建築する建替工法に関する。 The present invention is built METHOD denominated and relates reconstruction method, in particular, the pillar portion that is disposed on the outer peripheral portion is configured to bend the pillar portion and a slant portion that intersects the vertical portion and a vertical direction along the vertical direction the method of building buildings that are, and, on the reconstruction method to architecture instead of the該建product to an existing building.

この種の技術としては、地上部分の外周部に配される柱部を、地上一階に相当する下側部分を外方広がり姿勢の前記斜め部とし、且つ、地上二階以上に相当する上側部分を前記鉛直部とした前記屈曲柱部に構成することで、地上部分における地上二階以上の床面積を地上一階よりも拡大させたものが既に実施されている(この技術を示す適当な文献がない)。   As this kind of technology, the column part arranged on the outer peripheral part of the ground part is the lower part corresponding to the ground first floor as the oblique part in the outwardly spreading posture, and the upper part corresponding to the second floor or more of the ground. In the bent column portion that is the vertical portion, the floor area of the second floor or more in the ground portion has been expanded more than the first floor above ground (appropriate literature showing this technology is already available) Absent).

上記従来の技術では、前記屈曲柱部を配することで地上部分における上層側と下層側の面積変更を効率的に行うことができるものの、意匠面で評価が分かれる虞のある屈曲柱部が建物外観に現れるため、施主の評価次第では実施が困難になる問題がある。   In the above conventional technique, the bent column portion can be efficiently changed in the area of the upper layer side and the lower layer side in the ground portion by arranging the bent column portion, but there is a bent column portion in which the evaluation may be divided in terms of design. Since it appears in the appearance, there is a problem that it becomes difficult to implement depending on the evaluation of the owner.

また、より下層から床面積を変更するのが望ましい場合でも、地上二階以上からしか床面積を変更できないなど、建物設計の自由度が低い問題もある。   In addition, even when it is desirable to change the floor area from a lower layer, there is a problem that the degree of freedom in building design is low, such as the floor area can be changed only from the second floor or above.

本発明は、上述の実状に鑑みて為されたものであって、その主たる課題は、上層側と下層側との間での面積変更を効率的に行うことができながら、その面積変更を実現する屈曲柱部が建物外観に現れるのを回避することができるとともに、建物設計の自由度も高めることのできる建物の建築方法、及び、該建物を既存建物に替えて建築する建替法を提供する点にある。 The present invention has been made in view of the above-described actual situation, and the main problem is that the area change between the upper layer side and the lower layer side can be efficiently performed, and the area change is realized. with bent pillars unit that can be prevented from appearing on the building appearance, method of construction degree of freedom buildings that can be that the increase of the building design, and, reconstruction Engineering for construction instead of the該建product to an existing building The point is to provide a law.

本発明の第1発明に係る建築方法は、地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物の建築方法であって、
前記鉛直部としての下側部分と前記斜め部としての上側部分とを備えた前記屈曲柱部を構真柱とし、その構真柱の下側部分を地盤に建て込む工程と、
前記下側部分の建て込み後、前記下側部分の上端が地盤から露出する状態で前記下側部分を埋め戻すとともに前記上側部分の配設スペースを掘削する工程と、
前記上側部分を前記下側部分の上端に連設する工程と、
前記上側部分の連設後、前記上側部分の周囲の地盤を逆打ち工法の開始レベルまで埋め戻す工程と、
前記上側部分の周囲を埋め戻した後、前記開始レベルから前記地下部分を逆打ち工法により形成する工程と、を備えるものである。
In the construction method according to the first aspect of the present invention, the column portion arranged on the outer peripheral portion of the underground portion is configured as a bent column portion having a vertical portion along the vertical direction and an oblique portion intersecting the vertical direction. A building construction method,
The bending column portion including the lower portion as the vertical portion and the upper portion as the oblique portion is used as a construction column, and the lower portion of the construction column is built in the ground;
After erection of the lower part, backfilling the lower part with the upper end of the lower part exposed from the ground and excavating the arrangement space of the upper part;
Comprising the steps of: continuously provided on the upper end of the on side partial said lower portion,
A step of backfilling the ground around the upper part to the start level of the reverse driving method after the upper part is continuously provided;
And a step of forming the underground portion from the starting level by a back hammering method after backfilling the periphery of the upper portion .

第1発明によれば、前記屈曲柱部により上層階側と下層階側との間での面積変更を効率的に行うことができながら、その屈曲柱部を地下部分の外周部に配することで、意匠面で評価の分かれる虞のある屈曲柱部が外観に現れるのを回避することができる。従って、施主の意匠面での評価にかかわらず実施をすることが可能になる。
しかも、例えば、隣地との境界側の地盤中の特定の深さに障害物等がある場合でも、その箇所だけ後退させるように屈曲柱部を適宜に屈曲させて地下部分を形成することができるから、その分、建物設計の自由度を大幅に高めることができる。
さらに、第1発明によれば、柱部全体として地盤への建て込みのできない前記屈曲柱部を備えた特定の地下区域について、地盤への建て込みが可能な前記下側部分(鉛直部)は地盤に建て込むとともに、地盤への建て込みの不能な前記上側部分(斜め部)は下側部分の上端に連設する。
According to the first invention, while the area change between the upper floor side and the lower floor side can be efficiently performed by the bent column portion, the bent column portion is arranged on the outer peripheral portion of the underground portion. Thus, it is possible to avoid the appearance of a bent column part that may be evaluated separately on the design surface. Therefore, it can be carried out regardless of the design of the owner.
Moreover, for example, even when there is an obstacle or the like at a specific depth in the ground on the boundary side with the adjacent land, it is possible to form the underground portion by appropriately bending the bent column portion so as to retreat only that portion. Therefore, the degree of freedom in building design can be greatly increased.
Further, according to the first invention, the lower part (vertical portion) that can be built into the ground for the specific underground area having the bent column portion that cannot be built into the ground as a whole column portion is While being built in the ground, the upper part (oblique part) that cannot be built in the ground is connected to the upper end of the lower part.

そして、屈曲柱部の上側部分の周囲も逆打ち工法の開始レベルまで埋め戻して、屈曲柱部を有した地下区域も他の地下区域と同じレベルとし、両区域を逆打ち工法で同時的に施工する。   Then, backfill around the upper part of the bent column part to the start level of the reverse striking method, and make the underground area with the bent column part the same level as the other underground areas. Install.

すなわち、この構成によれば、柱部全体として地盤に建て込みできない屈曲柱部を備えた特定の地下区域についても、他の地下区域と一緒に逆打ち工法により施工するから、地下部分の外周部における屈曲柱部の存在で、逆打ち工法の開始レベルを下げたり、前記屈曲柱部を有する特定の地下区域だけを別の工法で施工したりする非効率な工事を回避することができる。従って、地下部分の外周部に屈曲柱部を有する建物を効率的に建築することが可能になる。   In other words, according to this configuration, the specific underground area with a bent column part that cannot be built into the ground as a whole column part is also constructed by the reverse driving method together with other underground areas, so the outer peripheral part of the underground part Due to the presence of the bent column portion, inefficiency work that lowers the start level of the reverse driving method or constructs only a specific underground area having the bent column portion by another method can be avoided. Therefore, it is possible to efficiently build a building having a bent column portion on the outer periphery of the underground portion.

本発明の第2発明に係る建替方法は、
地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物を既存建物に替えて建築する建替方法であって、
既存建物側に属する既存地下外壁又は既存土留め壁を残して既存建物側の構造体を解体し、残った既存地下外壁又は既存土留め壁の内側に新設土留め壁を施工し、その新設土留め壁の内側に新設の前記地下部分を形成するのに、
前記地下部分の上側を除く下側の深さ範囲の地盤に前記新設土留め壁を形成する工程と、
前記新設土留め壁の内側に前記鉛直部としての前記屈曲柱部の下側部分を形成する工程と、
前記斜め部として上方ほど外方に位置する外方広がり姿勢に構成された前記屈曲柱部の上側部分を、前記新設土留め壁の直上方空間に張り出し位置させる状態で前記屈曲柱部の下側部分に連設する工程と、を備えるものである。
The rebuilding method according to the second invention of the present invention is:
Reconstruction method for building a building in which the pillar part arranged on the outer periphery of the underground part is a bent pillar part having a vertical part along the vertical direction and an oblique part intersecting the vertical direction in place of the existing building Because
The existing building side structure is dismantled, leaving the existing underground outer wall or existing retaining wall belonging to the existing building side, and a new earth retaining wall is constructed inside the remaining existing underground outer wall or existing earth retaining wall. To form the new underground part inside the retaining wall,
Forming the new earth retaining wall on the ground in the lower depth range excluding the upper side of the underground part;
Forming a lower portion of the bent column portion as the vertical portion inside the new earth retaining wall;
The upper part of the bent column part, which is configured in an outwardly extending posture that is located outward as the oblique part, projects below the bent column part in a state of projecting in the space immediately above the new retaining wall. And a step of connecting to the portion .

第2発明によれば、前記屈曲柱部により上層階側と下層階側との間での面積変更を効率的に行うことができながら、その屈曲柱部を地下部分の外周部に配することで、意匠面で評価の分かれる虞のある屈曲柱部が外観に現れるのを回避することができる。従って、施主の意匠面での評価にかかわらず実施をすることが可能になる。
しかも、例えば、隣地との境界側の地盤中の特定の深さに障害物等がある場合でも、その箇所だけ後退させるように屈曲柱部を適宜に屈曲させて地下部分を形成することができるから、その分、建物設計の自由度を大幅に高めることができる。
さらに、第2発明によれば、既存地下外壁又は既存土留め壁の内側に新設土留め壁を形成して新設建物を建築するに当たり、土圧の影響の小さな上側部分を省く状態で新設土留め壁を形成するとともに、その新設土留め壁の形成を省いた省略空間(つまり、地下における新設土留め壁の直上方空間)に外方広がり姿勢の前記屈曲柱部の上側部分を張り出し位置させるから、その張り出し分だけ、新設建物の建築面積を広く確保することができ、敷地面積を効果的且つ効率的に活用することができる。
According to the second invention, while the area change between the upper floor side and the lower floor side can be efficiently performed by the bent column portion, the bent column portion is arranged on the outer peripheral portion of the underground portion. Thus, it is possible to avoid the appearance of a bent column part that may be evaluated separately on the design surface. Therefore, it can be carried out regardless of the design of the owner.
Moreover, for example, even when there is an obstacle or the like at a specific depth in the ground on the boundary side with the adjacent land, it is possible to form the underground portion by appropriately bending the bent column portion so as to retreat only that portion. Therefore, the degree of freedom in building design can be greatly increased.
Furthermore, according to the second invention , in constructing a new building by forming a new earth retaining wall on the inner side of the existing underground outer wall or existing earth retaining wall, the new earth retaining structure is omitted in a state in which the upper portion having a small influence of earth pressure is omitted. Since the wall is formed and the upper part of the bent column portion that projects outward is placed in an abbreviated space (that is, the space immediately above the new retaining wall in the basement) without forming the new retaining wall. As a result, the building area of the new building can be secured as much as the overhang, and the site area can be used effectively and efficiently.

本発明の第3発明に係る建替方法は、
地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物を既存建物に替えて建築する建替方法であって、
既存建物側に属する既存土留め壁と、その既存土留め壁の内側に位置する既存地下外壁の少なくとも下側部分とを残して既存建物側の構造体を解体し、残った既存土留め壁及び既存地下外壁の内側に新設の前記地下部分を形成するのに、
前記既存地下外壁の下側部分の内側に前記鉛直部としての前記屈曲柱部の下側部分を形成する工程と、
前記斜め部として上方ほど外方に位置する外方広がり姿勢に構成された前記屈曲柱部の上側部分を、これに対応する前記既存地下外壁の上側部分を解体してなる空間に張り出し位置させる状態で前記屈曲柱部の下側部分に連設する工程と、を備えるものである。
The rebuilding method according to the third invention of the present invention is:
Reconstruction method for building a building in which the pillar part arranged on the outer periphery of the underground part is a bent pillar part having a vertical part along the vertical direction and an oblique part intersecting the vertical direction in place of the existing building Because
Dismantling the existing building-side structure leaving the existing earth retaining wall belonging to the existing building side and at least the lower part of the existing underground outer wall located inside the existing earth retaining wall, and the remaining existing earth retaining wall and To form the new underground part inside the existing underground outer wall,
Forming the lower part of the bent column part as the vertical part inside the lower part of the existing underground outer wall;
A state in which the upper part of the bent column part, which is configured in an outwardly extending posture that is located outward as the oblique part, projects in a space formed by dismantling the corresponding upper part of the existing underground outer wall. And a step of connecting to the lower portion of the bent column portion .

第3発明によれば、前記屈曲柱部により上層階側と下層階側との間での面積変更を効率的に行うことができながら、その屈曲柱部を地下部分の外周部に配することで、意匠面で評価の分かれる虞のある屈曲柱部が外観に現れるのを回避することができる。従って、施主の意匠面での評価にかかわらず実施をすることが可能になる。
しかも、例えば、隣地との境界側の地盤中の特定の深さに障害物等がある場合でも、その箇所だけ後退させるように屈曲柱部を適宜に屈曲させて地下部分を形成することができるから、その分、建物設計の自由度を大幅に高めることができる。
さらに、第3発明によれば、既存土留め壁及びその内側の既存地下外壁を新設建物用の土留め壁に活用して新設建物を建築するに当たり、既存地下外壁のうちの土圧の影響の小さな上側部分を解体し、その解体空間(つまり、地下における既存地下外壁の直上方空間)に外方広がり姿勢の前記屈曲柱部の上側部分を張り出し位置させるから、その張り出し分だけ、新設建物の建築面積を広く確保することができ、敷地面積を効果的且つ効率的に活用することができる。
According to the third invention, while the area change between the upper floor side and the lower floor side can be efficiently performed by the bent column portion, the bent column portion is arranged on the outer peripheral portion of the underground portion. Thus, it is possible to avoid the appearance of a bent column part that may be evaluated separately on the design surface. Therefore, it can be carried out regardless of the design of the owner.
Moreover, for example, even when there is an obstacle or the like at a specific depth in the ground on the boundary side with the adjacent land, it is possible to form the underground portion by appropriately bending the bent column portion so as to retreat only that portion. Therefore, the degree of freedom in building design can be greatly increased.
Further, according to the third aspect of the present invention , when the existing earth retaining wall and the existing underground outer wall inside the existing earth retaining wall are used as the earth retaining wall for the new building, a new building is constructed. Since the small upper part is dismantled and the upper part of the bent column part in the outward spreading posture is overhanging in the dismantling space (that is, the space directly above the existing underground outer wall in the basement) A large building area can be secured, and the site area can be effectively and efficiently utilized.

第1実施形態の建築方法を示す説明図Explanatory drawing which shows the construction method of 1st Embodiment. 第1実施形態の建築方法を示す説明図Explanatory drawing which shows the construction method of 1st Embodiment. 第1実施形態の建築方法を示す説明図Explanatory drawing which shows the construction method of 1st Embodiment. 第1実施形態の建築方法を示す説明図Explanatory drawing which shows the construction method of 1st Embodiment. 第1実施形態の建築方法を示す説明図Explanatory drawing which shows the construction method of 1st Embodiment. 第1実施形態の建築方法(建物)を示す説明図Explanatory drawing which shows the construction method (building) of 1st Embodiment 第2実施形態の建替工法を示す説明部Explanatory part showing rebuilding method of the second embodiment 第2実施形態の建替工法を示す説明部Explanatory part showing rebuilding method of the second embodiment 第2実施形態の建替工法(建物)を示す説明部The explanation part which shows the rebuilding method (building) of 2nd Embodiment 第3実施形態の建替工法を示す説明部Explanatory part showing the rebuilding method of the third embodiment 第3実施形態の建替工法を示す説明部Explanatory part showing the rebuilding method of the third embodiment 第3実施形態の建替工法(建物)を示す説明部Explanation part showing rebuilding method (building) of 3rd Embodiment

[第1実施形態]
図6は、地上部分Bgと地下部分Buを備えた鉄筋コンクリート造の建物Bを示し、この建物Bは、地上部分Bg及び地下部分Buの各柱部1のうち、地下部分Buの外周部の一部の箇所に屈曲柱部2を配して構成してある。なお、3は隣接する柱部1どうしの間に亘らせた梁、4は梁の上部に一体的に支持させた床版、9は基礎である。
[First Embodiment]
FIG. 6 shows a reinforced concrete building B having an above-ground part Bg and an underground part Bu, and this building B is one of the outer peripheral parts of the underground part Bu among the column parts 1 of the above-ground part Bg and the underground part Bu. The bent column portion 2 is arranged at the portion. In addition, 3 is the beam spanned between the adjacent pillar parts 1, 4 is the floor slab supported by the upper part of the beam integrally, 9 is a foundation.

前記屈曲柱部2の上側部分2A(鉛直方向に交差する斜め部の一例)は、鉛直方向に交差する斜め姿勢として、上方ほど外方に位置する外方広がりの斜め姿勢に構成するとともに、屈曲柱部2の下側部分2B(鉛直方向に沿う鉛直部の一例)は、鉛直方向に沿う鉛直姿勢に構成してある。   The upper portion 2A (an example of an oblique portion that intersects the vertical direction) of the bent column portion 2 is configured as an oblique posture that extends outward as the oblique posture intersects the vertical direction and is bent outward. The lower part 2B (an example of a vertical part along the vertical direction) of the column part 2 is configured in a vertical posture along the vertical direction.

つまり、この建物Bは、地下部分Buの外周部に配された屈曲柱部2の上側部分2Aを外方広がりの斜め姿勢にすることで、地下部分Buの上層側となる地上部分Bgの床面積を地下部分Buよりも拡大する構成にしてある。   In other words, this building B has a floor of the ground portion Bg that is the upper layer side of the underground portion Bu by making the upper portion 2A of the bent column portion 2 arranged on the outer peripheral portion of the underground portion Bu into an oblique posture spreading outward. The area is larger than the underground portion Bu.

上述の如く構成された建物Bを逆打ち工法を採用して建築する建築方法について説明する。   A construction method for constructing the building B configured as described above by using the back-striking method will be described.

まず、図1に示すように、建築計画地の地盤Gの外周側に土留め壁5を形成する。前記土留め壁5は、ソイルセメント柱列山留め壁(SMW)やソイルセメント連続壁(TDR)、又は、その他の種々の壁体により構成することができる。   First, as shown in FIG. 1, the earth retaining wall 5 is formed on the outer peripheral side of the ground G of the construction planned site. The earth retaining wall 5 can be composed of a soil cement pillar row mountain retaining wall (SMW), a soil cement continuous wall (TDR), or other various wall bodies.

前記土留め壁5を形成したのち、土留め壁5の内側の各構真柱設置予定箇所に対して、構真柱としての地下部分Buの柱部1、及び、それを固定支持するための構真台柱7を形成するための設置孔8を掘削する。   After the earth retaining wall 5 is formed, the pillar portion 1 of the underground portion Bu as the true pillar and the fixed support for each true pillar installation planned location inside the earth retaining wall 5 An installation hole 8 for forming the structural pillar 7 is excavated.

そして、各設置孔8の内部にコンクリートを打設して構真台柱7を形成するとともに、各構真台柱7の硬化前に構真台柱7内に構真柱としての柱部1を挿入する。このとき、地下部分Buの柱部1のうちの外周部の屈曲柱部2については、鉛直姿勢の下側部分2Bのみを建て込む。   Then, concrete is cast in each installation hole 8 to form the pedestal column 7, and the column part 1 as the pedestal column is inserted into the pedestal column 7 before the respective pedestal column 7 is cured. . At this time, only the lower portion 2B of the vertical posture is installed for the bent column portion 2 at the outer peripheral portion of the column portion 1 of the underground portion Bu.

図2に示すように、建て込まれた各柱部1の周囲を土砂で埋め戻す。このとき、地下部分Buの柱部1のうちの前記屈曲柱部2については、鉛直姿勢の下側部分2Bの周囲のみを埋め戻す。なお、孔壁保護水等の関係から鉛直姿勢の下側部分2Bの上部も埋め戻すようにしてもよい。   As shown in FIG. 2, the circumference | surroundings of each built-in pillar part 1 are refilled with earth and sand. At this time, the bent column portion 2 of the column portions 1 of the underground portion Bu is backfilled only around the lower portion 2B of the vertical posture. In addition, you may make it backfill also the upper part of the lower part 2B of a perpendicular attitude | position from relations, such as hole wall protection water.

そして、屈曲柱部2の上側部分2Aの配置空間S1(つまり、屈曲柱部2の下側部分の横外方における下側部分の上端レベルよりも上方側の空間)を別途に土留め壁を形成しない工法(例えば深礎工法等)で掘削する。   Then, an arrangement space S1 of the upper portion 2A of the bent column portion 2 (that is, a space above the upper end level of the lower portion on the lateral outer side of the lower portion of the bent column portion 2) is separately provided with a retaining wall. Excavate with a method that does not form (for example, deep foundation method).

その後、掘削により形成した空間S1内において、露出状態にある屈曲柱部2の下側部分2Bの上端に対して屈曲柱部2の上側部分2Aを連設し、図3に示すように、屈曲柱部2の上側部分2Aの周囲を逆打ち工法の開始レベルまで埋め戻す。   Thereafter, in the space S1 formed by excavation, the upper portion 2A of the bent column portion 2 is connected to the upper end of the lower portion 2B of the bent column portion 2 in an exposed state, and as shown in FIG. The periphery of the upper part 2A of the column part 2 is backfilled to the start level of the reverse driving method.

逆打ち工法の開始レベルとしての埋め戻しレベルは、地下部分Buを逆打ち工法により形成するに当たり、屈曲柱部2の上側部分2Aの周囲に崩落等が生じずに他の区域と同一又は略同一レベルの構造体の形成作業を行える範囲のレベルであればよい。   The backfill level as the start level of the reverse striking method is the same as or substantially the same as that of other areas without collapsing around the upper portion 2A of the bent column portion 2 when the underground portion Bu is formed by the reverse striking method. Any level may be used as long as the level structure can be formed.

その後、図4に示すように、屈曲柱部2を有する地下区域、及び、鉛直姿勢の柱部1のみで屈曲柱部2を有しない地下区域の両方について、地下一階の梁下近傍レベルまで掘削し、地下一階の梁3と地上一階の床版4を形成する。   Thereafter, as shown in FIG. 4, to both the underground area having the bent column part 2 and the underground area having only the column part 1 in the vertical posture and not having the bent column part 2, to the level near the beam below the first floor underground. The excavation is performed to form a beam 3 on the first basement and a floor slab 4 on the first floor.

そして、図5に示すように、地上一階の床版4を作業床として、地上一階の梁3と地上二階の床版4を形成するとともに、地下二階の梁下近傍レベルまで掘削して地下二階の梁3と地下一階の床版4を形成する。   Then, as shown in FIG. 5, using the floor slab 4 on the ground first floor as a working floor, the beam 3 on the ground first floor and the floor slab 4 on the second floor above are formed, and excavated to a level near the beam below the second floor underground. A beam 3 on the second basement and a floor slab 4 on the first basement are formed.

同様の手法により、地上部分Bgの形成を上方に向かって進めるとともに、地下部分Buの形成を下方に向かって進め、図6に示すように、地上部分Bgと地下部分Buとを備えた鉄筋コンクリート造の建物Bの建築を完了する。   In the same manner, the formation of the ground part Bg is advanced upward, and the formation of the underground part Bu is advanced downward. As shown in FIG. 6, the reinforced concrete structure having the ground part Bg and the underground part Bu is provided. Complete the construction of Building B.

つまり、この建物Bの建築工法は、柱部全体として地盤Gへの建て込みのできない屈曲柱部2を備えた特定の地下区域について、地盤Gへの建て込みが可能な鉛直姿勢の下側部分2Bのみを地盤Gに建て込むとともに、地盤Gへの建て込みの不能な斜め姿勢の上側部分2Aは別途の掘削後に下側部分2Bの上端に連設して埋め戻し、屈曲柱部2も構真柱として構成することで、屈曲柱部2を有した地下区域についても他の地下区域と一緒に逆打ち工法により形成するようにしてある。   In other words, the building construction method of this building B is a lower part of a vertical posture in which a specific underground area having a bent column part 2 that cannot be built into the ground G as a whole column part can be built into the ground G. 2B alone is built in the ground G, and the upper part 2A in an oblique posture that cannot be built in the ground G is backfilled by connecting continuously to the upper end of the lower part 2B after excavation, and the bent column part 2 is also constructed. By configuring as a true pillar, the underground area having the bent column part 2 is also formed by the reverse driving method together with other underground areas.

それ故に、地下部分Buの外周部における一部の屈曲柱部2の存在で、全体としての逆打ち工法の開始レベルを下げたり、屈曲柱部2を有する特定の地下区域だけを別の工法で施工したりする非効率な工事を回避することができ、地下部分Buの外周部に屈曲柱部2を有する建物Bを効率的に建築することができる。   Therefore, the presence of some of the bent column portions 2 in the outer peripheral portion of the underground portion Bu lowers the start level of the overall reverse striking method, or only a specific underground area having the bent column portions 2 by another method. It is possible to avoid an inefficient construction work or to construct the building B having the bent column part 2 on the outer peripheral part of the underground part Bu.

[第2実施形態]
図7〜図9は、地上部分Bgと地下部分Buとを備え、且つ、地下部分Buの外周部の一部の箇所に屈曲柱部2を配して構成してある建物B(図9参照)を、既存建物B´に替えて建築する建替工法を示す。なお、本例では、既存建物B´が地上二階、地下一階の構造である場合を例に挙げて説明する。
[Second Embodiment]
FIGS. 7 to 9 show a building B (see FIG. 9) that includes an above-ground part Bg and an underground part Bu, and is configured by arranging a bent column part 2 at a part of the outer peripheral part of the underground part Bu. ) Is replaced with the existing building B ′. In this example, the case where the existing building B ′ has a structure of the second floor above ground and the first floor below will be described as an example.

まず、図7に示すように、既存建物B´側に属する既存土留め壁10を残して、既存建物B´を解体する。既存建物B´の地下部分の解体空間については敢えて埋め戻す必要はないが、本例では解体ガラ等で埋め戻す。   First, as shown in FIG. 7, the existing building B ′ is dismantled leaving the existing earth retaining wall 10 belonging to the existing building B ′ side. Although it is not necessary to refill the demolition space in the underground part of the existing building B ', in this example, it is refilled with demolition glass.

次に、図8に示すように、既存土留め壁10の内側に、既存建物B´よりも地階が深くなる新設建物Bの地下部分Buに対応して既存土留め壁10よりも深い領域に新設土留め壁5を形成する。   Next, as shown in FIG. 8, inside the existing retaining wall 10, in a region deeper than the existing retaining wall 10 corresponding to the underground portion Bu of the new building B where the basement is deeper than the existing building B ′. A new earth retaining wall 5 is formed.

このとき、新設土留め壁5は、後述する屈曲柱部2の上側部分2Aを張り出し位置させる空間S2を上方に形成するように該空間S2の下方領域に形成する。つまり、新設土留め壁5は、新設建物Bの地下部分Buの上側部分を省いて下側部分にだけ形成する。そして、新設建物Bの地下部分Buの形成領域を掘削する。   At this time, the new earth retaining wall 5 is formed in a lower region of the space S2 so as to form a space S2 in which an upper portion 2A of the bent column portion 2 described later is overhanging. That is, the new earth retaining wall 5 is formed only in the lower part while omitting the upper part of the underground part Bu of the new building B. And the formation area of the underground part Bu of the new building B is excavated.

なお、新設土留め壁5の上側部分への土圧の影響は小さく、且つ、外側に既存土留め壁10が存在するため、該上側部分を省いても特に問題はない。   In addition, since the influence of the earth pressure to the upper part of the new earth retaining wall 5 is small and the existing earth retaining wall 10 exists outside, there is no particular problem even if the upper part is omitted.

その後、図9に示すように、基礎9と地下二階の床版4、及び、地下二階の柱部1、梁3、地下一階の床版4を形成し、順次、上方に向かって地下部分Buの施工を進める。このとき、地下一階の柱部1に相当する屈曲柱部2の上側部分2Aについては、新設土留め壁5の形成を省いた省略空間S2(つまり、地下における新設土留め壁5の直上方空間)に張り出し位置させる状態で形成する。そして、同様に、順次、上方に向かって地上部分Bgの施工を進めて建物Bの建築を完了する。   Thereafter, as shown in FIG. 9, the foundation 9 and the floor slab 4 on the second basement, the column part 1 and the beam 3 on the second basement, and the floor slab 4 on the first basement are formed. Advance the construction of Bu. At this time, for the upper portion 2A of the bent column portion 2 corresponding to the column portion 1 on the first basement floor, the omitted space S2 in which the formation of the new earth retaining wall 5 is omitted (that is, directly above the new earth retaining wall 5 in the basement). It is formed in a state of projecting to (space). And similarly, construction of the ground part Bg is sequentially advanced upwards, and the construction of the building B is completed.

つまり、この建替工法によれば、土圧の小さな上側部分を省く状態で新設土留め壁5を形成するとともに、その新設土留め壁5の形成を省いた省略空間S2(つまり、地下空間における新設土留め壁5の直上方空間)に外方広がり姿勢の前記屈曲柱部2の上側部分2Aを張り出し位置させることで、その張り出し分だけ、新設建物Bの建築面積を広く確保することができ、敷地面積を効果的且つ効率的に活用することができる。   That is, according to this rebuilding method, the new earth retaining wall 5 is formed in a state in which the upper portion with a small earth pressure is omitted, and the abbreviated space S2 in which the new earth retaining wall 5 is omitted (that is, in the underground space) By placing the upper portion 2A of the bent column portion 2 in an outwardly spreading position in the space directly above the newly-installed retaining wall 5, the building area of the new building B can be secured wide by the amount of the overhang. The site area can be effectively and efficiently utilized.

なお、その他の構成は、第1実施形態で説明した構成と同一であるから、同一の構成箇所には、第1実施形態と同一の番号を付記してそれの説明は省略する。   In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[第3実施形態]
図10〜図12は、地上部分Bgと地下部分Buとを備え、且つ、地下部分Buの外周部の一部の箇所に屈曲柱部2を配して構成してある建物B(図12参照)を、既存建物B´に替えて建築する建替工法の別実施形態を示す。なお、本例では、既存建物B´が地上二階、地下二階の構造である場合を例に挙げて説明する。
[Third Embodiment]
FIGS. 10 to 12 show a building B (see FIG. 12) that includes an above-ground part Bg and an underground part Bu, and is configured by arranging a bent column part 2 at a part of the outer peripheral part of the underground part Bu. ) Is replaced with the existing building B ′, and another embodiment of the rebuilding construction method is shown. In this example, the case where the existing building B ′ has a structure of the second floor above the ground and the second floor below will be described as an example.

まず、図10に示すように、既存建物B´側に属する既存土留め壁10と、既存建物B´の地下外壁11(本例では、地下の外周部の壁と柱と梁)の少なくとも下側部分とを残して既存建物B´を解体し、第2実施形態同様、既存建物B´の地下部分の解体空間は解体ガラ等で埋め戻す。   First, as shown in FIG. 10, at least below the existing earth retaining wall 10 belonging to the existing building B ′ side and the underground outer wall 11 of the existing building B ′ (in this example, the walls, columns, and beams of the outer peripheral portion of the underground). The existing building B ′ is dismantled leaving the side part, and the dismantling space in the underground part of the existing building B ′ is backfilled with dismantling gala etc. as in the second embodiment.

このとき、地下外壁11の上側部分は、後に形成する屈曲柱部2の上側部分2Aが張り出し位置させるための空間S3を形成するように解体する。地下外壁11の上側部分にかかる土圧の影響は小さいため、この部分を解体しても特に問題はない。なお、地下外壁11の上側部分の解体は、地下部分Buの形成領域の掘削時や屈曲柱部2の上側部分2Aの形成時等であってもよい。そして、図11に示すように、新設建物Bの地下部分Buの形成領域を掘削する。   At this time, the upper portion of the underground outer wall 11 is disassembled so as to form a space S3 for allowing the upper portion 2A of the bent column portion 2 to be formed later to project. Since the influence of earth pressure on the upper portion of the underground outer wall 11 is small, there is no particular problem even if this portion is disassembled. The dismantling of the upper portion of the underground outer wall 11 may be performed during excavation of the formation region of the underground portion Bu or when the upper portion 2A of the bent column portion 2 is formed. And as shown in FIG. 11, the formation area of the underground part Bu of the new building B is excavated.

その後、図12に示すように、基礎9と地下二階の床版4、及び、地下二階の柱部1、梁3、地下一階の床版4を形成し、順次、上方に向かって施工を進める。このとき、地下一階の柱部1に相当する屈曲柱部2の上側部分2Aについては、既存建物B´の地下外壁11の解体空間S3(つまり、残した地下外壁11の下側部分の直上方空間)に張り出し位置させる状態で形成する。その後、同様に地上部分を上方に向かって順次に形成して建物Bの建築を完了する。   After that, as shown in FIG. 12, the foundation 9 and the floor slab 4 of the second basement, the column part 1 and the beam 3 of the second basement, and the floor slab 4 of the first basement are formed, and the construction is sequentially performed upward. Proceed. At this time, with respect to the upper portion 2A of the bent column portion 2 corresponding to the column portion 1 on the first basement floor, the dismantling space S3 of the underground outer wall 11 of the existing building B ′ (that is, a direct portion of the lower portion of the remaining underground outer wall 11). It is formed in a state where it is overhanging in the upper space. Thereafter, similarly, the ground portion is sequentially formed upward to complete the construction of the building B.

つまり、この建替工法によれば、既存土留め壁10及びその内側の既存地下外壁11の下側部分を新設建物B用の土留め壁として活用するとともに、既存地下外壁11のうち、受ける土圧の小さな上側部分を解体し、その解体空間S3(つまり、地下における既存地下外壁11の直上方空間)に外方広がり姿勢の前記屈曲柱部2の上側部分2Aを張り出し位置させることで、その張り出し分だけ、新設建物Bの建築面積を広く確保することができ、敷地面積を効果的且つ効率的に活用することができる。   That is, according to this rebuilding method, the existing retaining wall 10 and the lower part of the existing underground outer wall 11 inside thereof are used as the retaining wall for the new building B, and the soil received in the existing underground outer wall 11 is received. By dismantling the upper part with a small pressure and projecting the upper part 2A of the bent column part 2 in an outwardly spreading posture into the dismantling space S3 (that is, the space directly above the existing underground outer wall 11 in the basement) The building area of the new building B can be secured widely by the overhang, and the site area can be used effectively and efficiently.

なお、その他の構成は、第1実施形態で説明した構成と同一であるから、同一の構成箇所には、第1実施形態と同一の番号を付記してそれの説明は省略する。   In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

〔別実施形態〕
(1)屈曲柱部2は、前述の各実施形態で示した如き隣接階どうしの間で屈曲するものに限らず、特定階の上下方向中間位置で屈曲するもの等であってもよい。
[Another embodiment]
(1) The bent column portion 2 is not limited to one that bends between adjacent floors as shown in the above-described embodiments, and may be one that bends at an intermediate position in the vertical direction of a specific floor.

(2)また、屈曲柱部2は、前述の各実施形態で示した如き直線的に折れ曲がるものに限らず、曲線的に曲がるもの等であってもよい。   (2) In addition, the bent column portion 2 is not limited to one that is bent linearly as shown in each of the above-described embodiments, and may be one that bends curvedly.

(3)前述の第1実施形態では、地下部分Buの外周部に配された屈曲柱部2の上側部分2Aを外方広がりの斜め姿勢にすることで、地下部分Buの上層側となる地上部分Bgの床面積を地下部分Buよりも拡大する構成にする場合を例に示したが、例えば、屈曲柱部2の上側部分2Aを上方ほど内方に位置する内方窄まりの斜め姿勢にすることで、地上部分Bgの下層側となる地下部分Buの床面積を地上部分Bgよりも拡大する構成にしてもよい。   (3) In the first embodiment described above, the upper portion 2A of the bent column portion 2 arranged on the outer peripheral portion of the underground portion Bu is inclined outwardly spreading, so that the ground on the upper layer side of the underground portion Bu Although the case where the floor area of the part Bg is configured to be larger than the underground part Bu has been shown as an example, for example, the upper part 2A of the bent column part 2 has an inwardly sloping posture positioned inward as it extends upward. By doing so, you may make it the structure which expands the floor area of the underground part Bu which becomes the lower layer side of the ground part Bg rather than the ground part Bg.

(4)前述の第2実施形態では、既存土留め壁10を除く既存建物B´側の構造体を全て解体する場合を例に示したが、既存土留め壁10と既存建物B′の地下外壁との結合状態が強くて、既存土留め壁10を損傷させずに既存地下外壁を解体するのが困難な場合には、既存建物B´側の構造体として既存土留め壁10と既存地下外壁を残して、その地下外壁の内側に新設土留め壁10を形成するようにしてもよい。その際、例えば、地下外壁における壁体よりも厚い箇所(柱部や梁部の一部)を削ぎ落とす等により、壁体の厚み分だけを残すようにしてもよい。   (4) In the above-described second embodiment, the case where all the structures on the existing building B ′ side excluding the existing retaining wall 10 are dismantled is shown as an example. However, the underground of the existing retaining wall 10 and the existing building B ′ is shown. When it is difficult to disassemble the existing underground wall without damaging the existing earth retaining wall 10 due to the strong connection with the outer wall, the existing earth retaining wall 10 and the existing underground wall as the structure on the existing building B ′ side are used. The new earth retaining wall 10 may be formed inside the underground outer wall while leaving the outer wall. At that time, for example, only the thickness of the wall body may be left by, for example, scraping off a portion thicker than the wall body in the underground outer wall (a part of a column part or a beam part).

(5)前述の第2、第3実施形態では、新設建物Bの地下部分Buを順打ち工法により上方に向かって形成する場合を例に示したが、逆打ち工法により下方に向かって形成するようにしてもよい。   (5) In the second and third embodiments described above, the case where the underground portion Bu of the new building B is formed upward by the forward striking method is shown as an example, but it is formed downward by the reverse striking method. You may do it.

(6)前述の第3実施形態では、既存建物B´における地下外壁11として壁体と柱部と梁部とを残す場合を例に示したが、地下外壁11における壁体よりも厚い箇所(柱部や梁部の一部)を削ぎ落とす等により、壁体の厚み分だけを残すようにしてもよい。   (6) In the above-described third embodiment, the case where the wall body, the column portion, and the beam portion are left as the underground outer wall 11 in the existing building B ′ has been shown as an example, but the thicker portion than the wall body in the underground outer wall 11 ( Only the thickness of the wall body may be left by, for example, scraping off a part of a column part or a beam part.

(7)前述の第2、第3実施形態において、新設建物Bの地下部分Buを構築する際には、必要に応じて、土留め部分に切梁等を架設したり、切梁等の代わりに既存建物B´の梁を残したりしてもよい。   (7) In the second and third embodiments described above, when the underground portion Bu of the new building B is constructed, a cut beam or the like may be installed on the earth retaining portion or a substitute for the cut beam, as necessary. The beam of the existing building B ′ may be left behind.

1 柱部
2 屈曲柱部
2A 斜め部(上側部分)
2B 鉛直部(下側部分)
5 土留め壁
10 既存土留め壁
11 既存地下外壁
B 建物
B´ 既存建物
Bu 地下部分
S1 空間
S2 空間
S3 空間
1 pillar part 2 bent pillar part 2A slant part (upper part)
2B Vertical part (lower part)
5 Earth retaining wall 10 Existing earth retaining wall 11 Existing underground outer wall B Building B 'Existing building Bu Underground part S1 Space S2 Space S3 Space

Claims (3)

地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物の建築方法であって、
前記鉛直部としての下側部分と前記斜め部としての上側部分とを備えた前記屈曲柱部を構真柱とし、その構真柱の下側部分を地盤に建て込む工程と、
前記下側部分の建て込み後、前記下側部分の上端が地盤から露出する状態で前記下側部分を埋め戻すとともに前記上側部分の配設スペースを掘削する工程と、
前記上側部分を前記下側部分の上端に連設する工程と、
前記上側部分の連設後、前記上側部分の周囲の地盤を逆打ち工法の開始レベルまで埋め戻す工程と、
前記上側部分の周囲を埋め戻した後、前記開始レベルから前記地下部分を逆打ち工法により形成する工程と、を備える建築方法。
The column part arranged on the outer peripheral part of the underground part is a building construction method constituted by a bent column part having a vertical part along the vertical direction and an oblique part intersecting the vertical direction ,
The bending column portion including the lower portion as the vertical portion and the upper portion as the oblique portion is used as a construction column, and the lower portion of the construction column is built in the ground;
After erection of the lower part, backfilling the lower part with the upper end of the lower part exposed from the ground and excavating the arrangement space of the upper part;
A step of continuously provided on the upper end of the on side partial said lower portion,
A step of backfilling the ground around the upper part to the start level of the reverse driving method after the upper part is continuously provided;
A step of filling the periphery of the upper portion and then forming the underground portion from the start level by a reverse driving method.
地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物を既存建物に替えて建築する建替方法であって、
既存建物側に属する既存地下外壁又は既存土留め壁を残して既存建物側の構造体を解体し、残った既存地下外壁又は既存土留め壁の内側に新設土留め壁を施工し、その新設土留め壁の内側に新設の前記地下部分を形成するのに、
前記地下部分の上側を除く下側の深さ範囲の地盤に前記新設土留め壁を形成する工程と、
前記新設土留め壁の内側に前記鉛直部としての前記屈曲柱部の下側部分を形成する工程と、
前記斜め部として上方ほど外方に位置する外方広がり姿勢に構成された前記屈曲柱部の上側部分を、前記新設土留め壁の直上方空間に張り出し位置させる状態で前記屈曲柱部の下側部分に連設する工程と、を備える建替工法。
Reconstruction method for building a building in which the pillar part arranged on the outer periphery of the underground part is a bent pillar part having a vertical part along the vertical direction and an oblique part intersecting the vertical direction in place of the existing building Because
The existing building side structure is dismantled, leaving the existing underground outer wall or existing retaining wall belonging to the existing building side, and a new earth retaining wall is constructed inside the remaining existing underground outer wall or existing earth retaining wall. To form the new underground part inside the retaining wall,
Forming the new earth retaining wall on the ground in the lower depth range excluding the upper side of the underground part;
Forming a lower portion of the bent column portion as the vertical portion inside the new earth retaining wall;
The upper part of the bent column part, which is configured in an outwardly extending posture that is located outward as the oblique part, projects below the bent column part in a state of projecting in the space immediately above the new retaining wall. A rebuilding method comprising a step of connecting to a part;
地下部分の外周部に配される柱部が、鉛直方向に沿う鉛直部と鉛直方向に交差する斜め部とを有した屈曲柱部に構成される建物を既存建物に替えて建築する建替方法であって、
既存建物側に属する既存土留め壁と、その既存土留め壁の内側に位置する既存地下外壁の少なくとも下側部分とを残して既存建物側の構造体を解体し、残った既存土留め壁及び既存地下外壁の内側に新設の前記地下部分を形成するのに、
前記既存地下外壁の下側部分の内側に前記鉛直部としての前記屈曲柱部の下側部分を形成する工程と、
前記斜め部として上方ほど外方に位置する外方広がり姿勢に構成された前記屈曲柱部の上側部分を、これに対応する前記既存地下外壁の上側部分を解体してなる空間に張り出し位置させる状態で前記屈曲柱部の下側部分に連設する工程と、を備える建替工法。
Reconstruction method for building a building in which the pillar part arranged on the outer periphery of the underground part is a bent pillar part having a vertical part along the vertical direction and an oblique part intersecting the vertical direction in place of the existing building Because
Dismantling the existing building-side structure leaving the existing earth retaining wall belonging to the existing building side and at least the lower part of the existing underground outer wall located inside the existing earth retaining wall, and the remaining existing earth retaining wall and To form the new underground part inside the existing underground outer wall,
Forming the lower part of the bent column part as the vertical part inside the lower part of the existing underground outer wall;
A state in which the upper part of the bent column part, which is configured in an outwardly extending posture that is located outward as the oblique part, projects in a space formed by dismantling the corresponding upper part of the existing underground outer wall. And a step of connecting to the lower part of the bent column part.
JP2012266891A 2012-12-06 2012-12-06 Construction method and rebuilding method Active JP6119074B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012266891A JP6119074B2 (en) 2012-12-06 2012-12-06 Construction method and rebuilding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012266891A JP6119074B2 (en) 2012-12-06 2012-12-06 Construction method and rebuilding method

Publications (2)

Publication Number Publication Date
JP2014114540A JP2014114540A (en) 2014-06-26
JP6119074B2 true JP6119074B2 (en) 2017-04-26

Family

ID=51170846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012266891A Active JP6119074B2 (en) 2012-12-06 2012-12-06 Construction method and rebuilding method

Country Status (1)

Country Link
JP (1) JP6119074B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6471565B2 (en) * 2015-03-20 2019-02-20 株式会社大林組 Structure
JP6704801B2 (en) * 2016-06-10 2020-06-03 大成建設株式会社 Rebuilding building with existing underground outer wall
JP7283659B2 (en) * 2019-06-07 2023-05-30 株式会社竹中工務店 Mountain retaining structure
JP7356106B2 (en) * 2019-12-27 2023-10-04 株式会社竹中工務店 How to erect structural pillars and the Yatco connection jig used for that method
JP6877612B2 (en) * 2020-05-12 2021-05-26 大成建設株式会社 Rebuilding building with existing underground outer wall

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2620103B2 (en) * 1988-03-31 1997-06-11 清水建設株式会社 Construction method of trussed pillar
JP3146396B2 (en) * 1993-03-25 2001-03-12 株式会社竹中工務店 Construction method of composite underground structure using soil cement column wall
JP2894217B2 (en) * 1994-09-19 1999-05-24 鹿島建設株式会社 Building structural frame
JP3637519B2 (en) * 1997-08-04 2005-04-13 清水建設株式会社 Building rebuilding method
JP4069509B2 (en) * 1998-08-05 2008-04-02 株式会社大林組 Construction method of reverse struts in the outer periphery of underground excavation space
JP3728654B2 (en) * 2000-04-19 2005-12-21 清水建設株式会社 Building dismantling and construction methods
JP3780191B2 (en) * 2001-09-27 2006-05-31 戸田建設株式会社 Building construction method
JP4359570B2 (en) * 2005-03-25 2009-11-04 株式会社竹中工務店 Rebuilding method
JP5215030B2 (en) * 2008-05-08 2013-06-19 大成建設株式会社 Structure
JP2010281185A (en) * 2009-06-04 2010-12-16 Itoo:Kk Method for reconstructing existing building with basement
JP2012087561A (en) * 2010-10-21 2012-05-10 Takenaka Komuten Co Ltd Construction method of outer peripheral column in inverted construction

Also Published As

Publication number Publication date
JP2014114540A (en) 2014-06-26

Similar Documents

Publication Publication Date Title
JP6119074B2 (en) Construction method and rebuilding method
KR101121538B1 (en) Diaphragm wall tunnel method - dtm, and tunnel structure using diaphragm wall
KR100960603B1 (en) Construction method of retaining wall using phc pile
KR101182704B1 (en) Construction method of undergroud structure using PHC pile
JP2002115260A (en) Extension method for basement
JP5465086B2 (en) Construction method of underground structure
KR20100094140A (en) Wall structure capable of earth retaining and the building method of the same
JP2000352296A (en) Method o constructing passage just under underground structure
JP4115095B2 (en) Reverse strike method
KR100926323B1 (en) Constructing method for extension of underground
JP6615465B2 (en) Yamadome wall
JP5169638B2 (en) Construction method of underground structure
JP2012233349A (en) Earth retaining method
JP2018091107A (en) Method for constructing underground structure
JP4407716B2 (en) Construction method of earth retaining wall
JP4760548B2 (en) Side-by-side tunnel structure and its construction method
JP4243069B2 (en) Construction method of earth retaining wall
JP6832761B2 (en) How to rebuild the building
JP6948908B2 (en) Construction method of segments, buried structures and buried structures
JP7021419B2 (en) Construction method of underground widening part
JP2007303073A (en) Underground beam
JP6827256B2 (en) How to rebuild the building
KR200241025Y1 (en) Tunnel Construction Structure for using Wave Profile Type Steel Plate
JP6592331B2 (en) Survey method of circumferential shield machine
JP3809340B2 (en) Reverse strike method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150925

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160720

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160809

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20161011

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170228

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170310

R150 Certificate of patent or registration of utility model

Ref document number: 6119074

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150