CN109594574A - Large-scale push pipe open caisson reversed construction method based on the confined space - Google Patents
Large-scale push pipe open caisson reversed construction method based on the confined space Download PDFInfo
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- CN109594574A CN109594574A CN201811515094.0A CN201811515094A CN109594574A CN 109594574 A CN109594574 A CN 109594574A CN 201811515094 A CN201811515094 A CN 201811515094A CN 109594574 A CN109594574 A CN 109594574A
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- construction
- open caisson
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- caisson
- confined space
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of large-scale push pipe open caisson reversed construction method based on the confined space carries out the place constructed in advance smooth；According to design requirement, the ground location for excavating open caisson is determined；According to surveying setting-out position, sink going along with sb. to guard him pile driving construction；Then the earth's surface soil body is carried out to excavate；It is split hollow out between spatial position checked；To the first segment structure of reinforced concrete of open caisson；The construction of open caisson earth excavation is carried out after the completion of first section structure construction；To the concrete structure construction of open caisson south and north flanks；Excavate the earthwork within the scope of the second section caisson structure；To the concrete structure construction of open caisson east and west sides；The construction subsequent segment of open caisson after second section thing structure construction; carry out bottom sealing construction; it is effectively controlled earth's surface and building enclosure deformation, excavation of foundation pit and main structure crossed construction, inverse itself load for making structure is directly transmitted to ground by column; influence of the macroscopic destruction to supporting course is reduced simultaneously; construction safety is improved, while being conducive to protection environment.
Description
Technical field
The present invention relates to underground engineering technical fields, inverse more particularly, to a kind of large-scale push pipe open caisson based on the confined space
Make construction method.
Background technique
It, be to a large amount of municipal pipeline, combustion gas, tap water, rain sewage because construction needs in Construction of Urban Rail Traffic
Pipeline move changing, wherein being frequently necessary to migration has the high-tension cables such as 220KV, 110KV, 10KV of greater risk, middle compression ignition gas
Pipeline, a large amount of municipal pipelines such as high pressure major diameter tap water Trunk Line.In practice of construction, some pipelines are difficult to migrate and and rail
The station structure of road traffic interferes with each other, and brings many difficulties to rail traffic construction, it is difficult how to solve these constructions
Topic needs to carry out the ratio choosing of a variety of arrangement and method for construction, therefrom chooses optimal scheme.
In certain constructions, the migration of pipeline need to pass through major trunk roads, in order to guarantee the unimpeded of major trunk roads, pass through push bench process more
(high pressure) pipeline under relocation site, most top tube diameters are less than 1.5m, and the push pipe of caliber 3m is less.According to the technique of jacking construction,
Jacking construction must construct first and originate open caisson, and the depth of open caisson is usually influenced by a variety of extraneous factors, it is often necessary to larger
Buried depth could safe avoidance underground existing barrier, the increase of open caisson buried depth considerably increases the difficulty and risk of construction.
Summary of the invention
The object of the present invention is to provide a kind of large-scale push pipe open caisson reversed construction method based on the confined space, effective control
It is straight by column earth's surface and building enclosure deformation, excavation of foundation pit and main structure crossed construction, inverse itself load for making structure have been made
It connects and is transmitted to ground, while reducing influence of the macroscopic destruction to supporting course, improve construction safety, while being conducive to protection environment,
Meet the requirement of green construction.
To achieve the above object, the present invention provides a kind of large-scale push pipe open caisson adverse construction method side based on the confined space
Method, comprising the following steps:
A, smooth location: smooth, removing ground foreign matter is carried out to the place constructed in advance, according to the requirement of green construction progress
The enclosing of construction site and closing；
B, first time surveying and locating: according to design requirement, the ground location for excavating open caisson is determined；
C, steel sheet pile construction: according to surveying setting-out position, pile driving construction is gone along with sb. to guard him before carrying out open caisson excavation；
D, first layer earth excavation: the earth's surface soil body is carried out after steel sheet pile construction and is excavated；
E, second of surveying and locating: first layer excavate after the completion of it is split hollow out between spatial position checked；
F, it first section structure construction: constructs to the first segment reinforced concrete structure of open caisson；
G, the second section earth excavation: the construction of open caisson earth excavation is carried out after the completion of first section structure construction；
H, the second section north and south structure is inverse makees: constructing to the concrete structure of open caisson south and north flanks；
I, the second section thing earth excavation: excavate the earthwork within the scope of the second section caisson structure；
J, it the second section thing structure construction: constructs to the concrete structure of open caisson east and west sides；
K, subsequent segmental construction and back cover: the subsequent segment of open caisson of successively constructing after the second section thing structure construction, it is most laggard
The construction of row bottom sealing.
Preferably, the fender post uses the Larsen sheet pile with water stopping function, and the Larsen sheet pile is by connection groove
Form connection.
Preferably, the earth's surface soil body carried out after the first layer earth excavation is steel sheet pile construction is excavated, and excavates
Depth meets the height of the first section structure of open caisson, and guarantees that fender post meets soil body stability requirement to the support action of the soil body.
Preferably, first section structure construction carries out after first layer earth excavation and after measurement checks and excavates size
Reinforcing bar binding, concreting and the maintenance construction of first segment caisson structure.
Preferably, the cutting depth of the second section earth excavation meets the second section open caisson requirement for height, pre- in digging process
The east and west sides first segment open caisson concrete base soil body is stayed, the south and north flanks soil body is then excavated, and excavates size and meets open caisson knot
The requirement of structure size.
Preferably, the second section north and south structure is inverse makees to be to carry out north and south side after north and south side earth excavation meets design requirement
The reinforcing bar of caisson structure is bound and concreting.
Preferably, the second section thing earth excavation is that north and south concrete structure construction finishes and reaches design requirement intensity
Afterwards, the thing side soil body is excavated, and meets design requirement.
Preferably, the second section thing structure carries out caisson structure against after meeting design requirement as thing side soil excavation
Reinforcing bar binding and concrete pouring construction.
Preferably, subsequent segmental construction and back cover are third section caisson structures of constructing according to the construction method of the second section open caisson
Construction, according to Sinking Well Design can continue construct Section of four caisson structure, after structure meets design requirement, by design requirement into
The construction of row bottom sealing.
Therefore, the large-scale push pipe open caisson reversed construction method based on the confined space of the present invention using the above structure, effectively
Control earth's surface and building enclosure deformation, excavation of foundation pit and main structure crossed construction, inverse make itself load of structure by standing
Column is directly transmitted to ground, while reducing influence of the macroscopic destruction to supporting course, improves construction safety, while being conducive to protection ring
Border meets the requirement of green construction.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the large-scale push pipe open caisson reversed construction method embodiment based on the confined space of the present invention.
Specific embodiment
Embodiment
Fig. 1 is a kind of flow chart of the large-scale push pipe open caisson reversed construction method embodiment based on the confined space of the present invention.
As shown, the present invention provides a kind of large-scale push pipe open caisson reversed construction method based on the confined space, comprising the following steps:
A, smooth location: smooth, removing ground foreign matter is carried out to the place constructed in advance, according to the requirement of green construction progress
The enclosing of construction site and closing；
B, first time surveying and locating: according to design requirement, the ground location for excavating open caisson is determined；
C, steel sheet pile construction: according to surveying setting-out position, pile driving construction is gone along with sb. to guard him before carrying out open caisson excavation, the fender post is adopted
With the Larsen sheet pile with water stopping function, the Larsen sheet pile forms connection by connection ditch slot；
D, first layer earth excavation: the earth's surface soil body is carried out after steel sheet pile construction and is excavated, cutting depth meets open caisson
The height of first section structure, and guarantee that fender post meets soil body stability requirement to the support action of the soil body；
E, second of surveying and locating: first layer excavate after the completion of it is split hollow out between spatial position checked；
F, it first section structure construction: constructs to the first segment reinforced concrete structure of open caisson, i.e., to first segment open caisson knot
Reinforcing bar binding, concreting and the maintenance construction of structure；
G, the second section earth excavation: the construction of open caisson earth excavation is carried out after the completion of first section structure construction, the second section earthwork is opened
The cutting depth of digging meets the second section open caisson requirement for height, and east and west sides first segment open caisson concrete bottom is reserved in digging process
Then portion's soil body excavates the south and north flanks soil body, and excavate size and meet the requirement of caisson structure size, prevents first segment caisson structure
Because self weight is sunk；
H, the second section north and south structure is inverse makees: constructing to the concrete structure of open caisson south and north flanks, in north and south side cubic metre of earth
After excavation meets design requirement, the reinforcing bar binding and concreting of north and south side caisson structure are carried out；
I, the second section thing earth excavation: excavating the earthwork within the scope of the second section caisson structure, is north and south concrete structure
After construction finishes and reaches design requirement intensity, the thing side soil body is excavated, and meet design requirement；
J, the second section thing structure construction: constructing to the concrete structure of open caisson east and west sides, is the thing side soil body
After excavation meets design requirement, reinforcing bar binding and the concrete pouring construction of caisson structure are carried out；
K, subsequent segmental construction and back cover: the subsequent segment of open caisson of successively constructing after the second section thing structure construction, it is most laggard
The construction of row bottom sealing can according to Sinking Well Design according to the construction method construction third section caisson structure construction of the second section open caisson
Continue Section of four caisson structure of constructing, after structure meets design requirement, carries out bottom sealing construction, Ying Bao by design requirement
Demonstrate,prove construction joint concrete chisel hair quality amount, it is ensured that the waterproof performance of structure.
The present invention solves in large-scale push pipe open caisson construction, and upper formation is soft, the compound of narrow space can be used in ground
In stratum use reverse construction great burying push pipe open caisson, be conducive to ensure normal traffic order, be also beneficial to it is quick, safe,
Efficiently completion pipeline, which moves, changes construction.
Therefore, the large-scale push pipe open caisson reversed construction method based on the confined space of the present invention using the above structure, effectively
Control earth's surface and building enclosure deformation, excavation of foundation pit and main structure crossed construction, inverse make itself load of structure by standing
Column is directly transmitted to ground, while reducing influence of the macroscopic destruction to supporting course, improves construction safety, while being conducive to protection ring
Border meets the requirement of green construction.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited,
Although the present invention is described in detail with reference to preferred embodiments, those skilled in the art should understand that: its according to
So can be with modification or equivalent replacement of the technical solution of the present invention are made, and these modifications or equivalent replacement cannot also make to repair
Technical solution after changing is detached from the spirit and scope of technical solution of the present invention.
Claims (9)
1. a kind of large-scale push pipe open caisson reversed construction method based on the confined space, which comprises the following steps:
A, smooth location: it is smooth to the place progress constructed in advance, ground foreign matter is removed, is constructed according to the requirement of green construction
The enclosing in place and closing；
B, first time surveying and locating: according to design requirement, the ground location for excavating open caisson is determined；
C, steel sheet pile construction: according to surveying setting-out position, pile driving construction is gone along with sb. to guard him before carrying out open caisson excavation；
D, first layer earth excavation: the earth's surface soil body is carried out after steel sheet pile construction and is excavated；
E, second of surveying and locating: first layer excavate after the completion of it is split hollow out between spatial position checked；
F, it first section structure construction: constructs to the first segment reinforced concrete structure of open caisson；
G, the second section earth excavation: the construction of open caisson earth excavation is carried out after the completion of first section structure construction；
H, the second section north and south structure is inverse makees: constructing to the concrete structure of open caisson south and north flanks；
I, the second section thing earth excavation: excavate the earthwork within the scope of the second section caisson structure；
J, it the second section thing structure construction: constructs to the concrete structure of open caisson east and west sides；
K, subsequent segmental construction and back cover: the subsequent segment of open caisson of successively constructing after the second section thing structure construction is finally sunk
The construction of well back cover.
2. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: institute
It states fender post and uses the Larsen sheet pile with water stopping function, the Larsen sheet pile forms connection by connection ditch slot.
3. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: institute
The earth's surface soil body carried out after first layer earth excavation is stated as steel sheet pile construction is excavated, and cutting depth meets open caisson first segment
The height of structure, and guarantee that fender post meets soil body stability requirement to the support action of the soil body.
4. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: first
Section structure construction carries out the steel of first segment caisson structure after first layer earth excavation and after measurement checks and excavates size
Muscle binding, concreting and maintenance construction.
5. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: the
The cutting depth of two section earth excavations meets the second section open caisson requirement for height, and it is heavy that east and west sides first segment is reserved in digging process
Then the well concrete base soil body excavates the south and north flanks soil body, and excavate size and meet the requirement of caisson structure size.
6. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: the
Two section north and south structures are inverse to be made to be the reinforcing bar binding for carrying out north and south side caisson structure after north and south side earth excavation meets design requirement
And concreting.
7. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: the
Two section thing earth excavations are after north and south concrete structure construction finishes and reaches design requirement intensity, to excavate the thing side soil body,
And meet design requirement.
8. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: the
Two section thing structures carry out reinforcing bar binding and the concrete of caisson structure against after meeting design requirement as thing side soil excavation
Pouring construction.
9. the large-scale push pipe open caisson reversed construction method according to claim 1 based on the confined space, it is characterised in that: after
Continuous segmental construction and back cover are the construction method construction third section caisson structure constructions according to the second section open caisson, according to Sinking Well Design
It can continue Section of four caisson structure of constructing, after structure meets design requirement, carry out bottom sealing construction by design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515094.0A CN109594574B (en) | 2018-12-12 | 2018-12-12 | Large pipe jacking open caisson reverse construction method based on limited space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515094.0A CN109594574B (en) | 2018-12-12 | 2018-12-12 | Large pipe jacking open caisson reverse construction method based on limited space |
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| CN109594574A true CN109594574A (en) | 2019-04-09 |
| CN109594574B CN109594574B (en) | 2021-11-02 |
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| CN201811515094.0A Active CN109594574B (en) | 2018-12-12 | 2018-12-12 | Large pipe jacking open caisson reverse construction method based on limited space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216294A (en) * | 2021-05-14 | 2021-08-06 | 南京工业大学 | Narrow area soil body excavation equipment for reverse construction and construction method |
| CN113802608A (en) * | 2021-10-22 | 2021-12-17 | 武汉市武昌市政建设(集团)有限公司 | Open caisson structure applied to narrow zone and construction method thereof |
| CN114319405A (en) * | 2021-12-10 | 2022-04-12 | 上海市基础工程集团有限公司 | Construction method for micro-disturbance vertical press-in type thin-wall open caisson in complex environment |
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| JP4358040B2 (en) * | 2004-06-17 | 2009-11-04 | 千葉窯業株式会社 | Caisson etc. |
| CN102635124A (en) * | 2012-04-23 | 2012-08-15 | 浙江省建工集团有限责任公司 | Construction method aiming to large open caisson in weak soil area |
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| CN106369223A (en) * | 2016-10-31 | 2017-02-01 | 中铁二十局集团第五工程有限公司 | Pipe-jacking construction method for mealy sand stratum |
| CN107975040A (en) * | 2017-11-30 | 2018-05-01 | 上海宝冶集团有限公司 | Circular top pipe working pit multiple material handling method of deep foundation pit construction method |
| JP2018145649A (en) * | 2017-03-03 | 2018-09-20 | 鹿島建設株式会社 | Method for suppressing inclination at the time of caisson sinking |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4358040B2 (en) * | 2004-06-17 | 2009-11-04 | 千葉窯業株式会社 | Caisson etc. |
| CN102635124A (en) * | 2012-04-23 | 2012-08-15 | 浙江省建工集团有限责任公司 | Construction method aiming to large open caisson in weak soil area |
| CN103195158A (en) * | 2013-04-03 | 2013-07-10 | 济南城建集团有限公司 | Municipal drainage pipeline slurry balance pipe-jacking construction method |
| CN106369223A (en) * | 2016-10-31 | 2017-02-01 | 中铁二十局集团第五工程有限公司 | Pipe-jacking construction method for mealy sand stratum |
| JP2018145649A (en) * | 2017-03-03 | 2018-09-20 | 鹿島建設株式会社 | Method for suppressing inclination at the time of caisson sinking |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216294A (en) * | 2021-05-14 | 2021-08-06 | 南京工业大学 | Narrow area soil body excavation equipment for reverse construction and construction method |
| CN113802608A (en) * | 2021-10-22 | 2021-12-17 | 武汉市武昌市政建设(集团)有限公司 | Open caisson structure applied to narrow zone and construction method thereof |
| CN114319405A (en) * | 2021-12-10 | 2022-04-12 | 上海市基础工程集团有限公司 | Construction method for micro-disturbance vertical press-in type thin-wall open caisson in complex environment |
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| CN109594574B (en) | 2021-11-02 |
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