KR102714639B1 - Pillar wall for utility tunnels that maximizes productivity and economy through high-quality manufacturability, easy workability, construction safety, and shortened construction period, and a construction method for utility tunnels using the above Pillar walls - Google Patents

Abstract

The present invention relates to a filler wall for civil engineering structures that maximizes productivity and economy through high-quality production, easy workability, construction safety, and shortening of construction period.
Accordingly, the technical gist of the present invention is to introduce a new concept of filler wall (referred to as 'wing column') in constructing the outer wall of a civil engineering structure, and this filler wall is manufactured integrally with the column part and the wing part (single wing type or double wing type) using precast concrete (PC), so that the PC manufacturing quality (high density injection is possible with uniform distribution when pouring concrete into the manufacturing mold and curing is possible at once/conventional PC wall products were poured and cured on one side first and then turned over and poured and cured on the other side the next day, which took two days - making it impossible to meet the delivery date) is significantly improved, and the manufacturing time and construction period can be significantly shortened by the upper and lower simultaneous production method, which greatly improves productivity and economy, and is characterized by ensuring the strength against lateral pressure when filling the inner fill concrete, while ensuring safety and excellent quality.
In addition, the filler wall of the present invention secures a high-strength structure due to the initial integration process with the foundation floor (when connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column portion and then ultra-high-strength non-shrink mortar is filled and hardened, structural integration with the foundation floor is formed), so that, compared to conventional methods, the use of hardware to prevent lateral pressure or buoyancy and temporary reinforcement work to prevent distortion are fundamentally omitted, so that the construction cost can be significantly reduced, and the work time is reduced by more than twice, so that unnecessary waste of labor costs is completely eliminated.
In addition, the present invention is characterized in that the unit-type filler walls are continuously joined and assembled toward the wing side (filler wall continuous method: connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column, and then ultra-high-strength non-shrinkage mortar is filled and hardened to form a structural integration with the foundation floor) to complete the wall section, which not only reduces the assembly time by more than twice, but also allows the PC slab (using JRS) to be assembled immediately after one day of curing is completed after the wall assembly using the filler walls, thereby reducing the construction period by more than half.

Description

Pillar wall for utility tunnels that maximizes productivity and economy through high-quality manufacturability, easy workability, construction safety, and shortened construction period, and a construction method for utility tunnels using the above Pillar walls

The present invention introduces a new concept of filler wall (also called 'wing column') in constructing the outer wall of civil engineering structures including retaining walls of common areas, semiconductor wastewater treatment plants, and underground parking lots, and such filler wall is applicable to civil engineering structures that are recently trending toward large-scale construction (in the past, they were manufactured as small box structures that could handle even when the amount of water, digestion, consumption, or treatment capacity was not large/in some cases, the transportation of conventional box-integrated structures was difficult or impossible due to the square size alone). Compared to conventional box-type civil engineering structures, the foundation floor, outer wall, and slab are each designed as separate structures, and then unit-type filler walls can be continuously assembled and constructed in the part that forms the outer wall. This not only aims for a groundbreaking shortening of the construction period, but also guarantees outstandingly excellent transportability, handling, and workability, and is particularly suitable for the construction of ultra-large civil engineering structures (also applicable to building structures), and is characterized by high-quality production, easy workability, and construction safety. The present invention relates to a filler wall for civil engineering structures (including common areas, sewage treatment plants, and underground parking lots) with maximized productivity and economy through shortening of construction time, and a method for constructing civil engineering structures using the filler wall.

In other words, the filler wall of the present invention is manufactured integrally with a column section and a wing section (single wing type or double wing type) using precast concrete (PC), and the quality of PC manufacturing is significantly improved compared to conventional methods (high density injection is possible with uniform distribution when pouring concrete into the manufacturing mold, and curing is possible at once/conventional PC wall products were poured and cured on one side first, then turned over and poured and cured on the other side the next day, which took two days - making it impossible to meet the delivery date), and the manufacturing time and construction period can be significantly shortened by the upper and lower simultaneous production method, which greatly improves productivity and economy, and is characterized by ensuring strength against lateral pressure when filling with inner concrete, while ensuring safety and excellent quality.

Accordingly, the filler wall of the present invention secures a high-strength structure due to the initial integration process with the foundation floor (where connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column portion, and then ultra-high-strength non-shrinkage mortar is filled and hardened to form a structural integration with the foundation floor), so that, compared to conventional methods, the use of hardware to prevent lateral pressure or buoyancy and temporary reinforcement work to prevent distortion are fundamentally omitted, so that the construction cost can be significantly reduced, and the work time is reduced by more than twice, so that unnecessary waste of labor costs is completely eliminated.

In addition, the present invention is characterized in that the unit-type filler walls are continuously joined and assembled toward the wing side (filler wall continuous method: connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column, and then ultra-high-strength non-shrinkage mortar is filled and hardened to form a structural integral part with the foundation floor) to complete the wall section, which not only reduces the assembly time by more than twice, but also allows the PC slab (using JRS) to be assembled immediately after one day of curing is completed after the wall assembly using the filler walls, thereby reducing the construction period by more than half.

In addition, the PC slab of the present invention uses a JRS (Jointless ribbed slab), so that one free end corresponds to the other supporting rib and is continuously connected and assembled, which enables a continuous joint to be formed without a separate connecting bar or reinforcing bar, and not only secures structural integrity, but also fundamentally prevents the cause of cracks at the connecting point (contact portion) compared to the conventional PC slab, thereby greatly improving the durability, stability, and waterproofing of the building.

In general, a common trench (explained as an example of a civil engineering structure) is formed to allow water or drainage channels to be buried under roads, railways, embankments, etc., or to allow for the joint burial of various facilities such as electric cables, communication lines, water pipes, heat transport pipes, waste water pipes, gas pipes, and sewer pipes, including underground roads, under the roads.

Accordingly, the conventional joint tunnel was constructed using the classical method of pouring and curing concrete on site (commonly referred to as the conventional RC method/labor-intensive structure, lack of skilled workers, and problems such as exposure to collapse accidents and the punishment of major disasters due to the indispensable requirement of support work, and continuous problems such as disruption in the supply of concrete), but recently, in order to shorten the construction period and achieve economical construction, the trend is to replace it with precast concrete structures (PC materials, etc.) manufactured in advance at the factory, transported to the site, and assembled.

This type of precast concrete construction method for common areas has many advantages, such as the ability to be constructed quickly and to be backfilled immediately after construction, which eliminates problems such as inconvenience to citizens, disruption of traffic flow, and unnecessary waste of time that may arise during construction, making it effective for complex urban construction projects, ensuring uniform quality because it is produced in a factory under strict quality control, and using high-strength concrete to ensure watertightness and durability of the structure.

To explain this in more detail, typically, after excavation and foundation ground preparation work is done at the location where the joint is to be installed, foundation concrete is poured.

Accordingly, once the poured foundation concrete has cured, the precast concrete members, i.e. the walls and slabs, are transported to the site and assembled to complete the construction.

Meanwhile, the conventional double wall construction method is implemented by pouring and curing on-site concrete between multiple PC walls in the form of sandwich panels to secure some of the waterproofing function of the double wall and maintain structural rigidity.

However, the double-wall method requires the installation of steel materials for lateral pressure control and distortion control between multiple walls, which makes it considerably difficult and challenging for workers when working in tight spaces, and in particular, it creates problems of long working hours and exposure to safety hazards.

Comparison between the filler wall of the present invention and the conventional double wall-1

In addition, as seen in the comparison table above, the conventional double-wall method generates buoyancy (a phenomenon in which the PC member rises as the concrete is filled) when filling the inner wall between a pair of walls, so hardware materials for buoyancy control (angles welded to embedded ironwork) and hardware for controlling lateral pressure and torsional strength must be installed. This causes problems such as increased manufacturing costs, construction delays, and reduced productivity.

In addition, the existing double wall is produced by separating the upper and lower parts, which requires excessive manufacturing time and labor, and also causes excessive filling of concrete. In addition, the filling part is insufficiently processed due to the upper and lower separate pouring, which causes defects.

In addition, the conventional double-wall construction method causes interference with the lower anchorage rebar, requires an excessive prop support retention period (until strength development at 28 days), requires additional reinforcement with wire mesh for crack control, and at the same time, causes excessive auxiliary work such as scaffolding and footing construction due to the wall concrete pre-pouring method, and slab assembly is only possible after the wall is stabilized (concrete is completely cured), which delays the construction.

Accordingly, the background of the development of the filler wall according to the present invention is summarized in the table below.

Background of development of the filler wall of the present invention

1. Republic of Korea Patent Publication No. 10-0924701 (October 27, 2009)

The present invention is to solve the above-mentioned problems, and its technical gist is to manufacture a pillar part and a wing part (single wing type or double wing type) as an integral filler wall using precast concrete (PC: Precast Concrete) to form an outer wall of a civil engineering structure including a retaining wall of a common culvert, a semiconductor wastewater treatment plant, and an underground parking lot, thereby significantly improving the quality of PC manufacturing compared to the past, and significantly shortening the manufacturing production time and the construction period through the upper and lower simultaneous production method, which greatly improves productivity and economy, and provides the purpose of ensuring safety and excellent quality while guaranteeing the strength against lateral pressure when filling with inner fill concrete.

Accordingly, the filler wall of the present invention secures a high-strength structure due to the initial integration process with the base floor, thereby fundamentally omitting the use of hardware to prevent lateral pressure or buoyancy and the temporary reinforcement work to prevent distortion compared to conventional methods, thereby significantly reducing the construction cost and completely eliminating unnecessary waste of labor costs as the work time is reduced by more than twice.

The purpose of the present invention is to provide a method that excludes scaffolding work, enables unsteady construction, makes it easy to install vertical posts and horizontal handrails before pouring concrete, and makes it convenient to install vertical nets after pouring floor concrete.

In addition, the present invention provides a method for completing a wall section by continuously assembling unit-type filler walls toward the wing side (filler wall continuous construction method), which not only reduces the assembly time by more than twice, but also allows the PC slab (using JRS) to be assembled immediately after one day of curing is completed after the wall assembly using the filler walls, thereby reducing the construction period by more than half.

And, the purpose of the filler wall of the present invention is to provide a structure that is highly productive, of excellent quality, economical, and particularly rigid, and that facilitates loading and unloading operations.

In other words, the filler wall features of the present invention are summarized in the table below in comparison with the conventional double wall.

Comparison between the filler wall of the present invention and the conventional double wall-2

That is, the filler wall of the present invention is applicable to civil engineering structures that have recently become larger (in the past, they were manufactured as small box structures that could handle even large quantities of material, digestion volumes, consumption volumes, or processing performance/conventional box-integrated structures were sometimes difficult or impossible to transport due to their square dimensions alone), and compared to conventional box-type civil engineering structures, the foundation floor, exterior wall, and slab are each designed as separate structures, and then unit-type filler walls can be continuously assembled and constructed in the portion forming the exterior wall. This not only aims to achieve a groundbreaking shortening of the construction period, but also ensures outstanding transportability, handling, and workability, and in particular, provides something that is ideally suited to the construction of ultra-large civil engineering structures.

In addition, the PC slab of the present invention uses a JRS (Jointless ribbed slab), so that one free end corresponds to a supporting rib on the other side and is continuously connected and assembled, which enables a continuous joint without a separate connecting bar or reinforcing bar, and not only secures structural integrity by fundamentally preventing the cause of cracks at the connecting point (contact part) compared to the conventional PC slab, but also provides a purpose of greatly improving the durability, stability, and waterproofing of the building.

To achieve this purpose, the filler wall (W) of the present invention is formed by integrally connecting a column part (100: a main surface area that secures a support area set to approximately 300 to 500 mm in width and approximately 600 to 1000 mm in length) having a predetermined length (approximately 5 to 10 m) in the vertical height direction and a wing part (200: an auxiliary area in which a pair of wing parts are horizontally branched at a set interval (200 to 500 mm) on one or both sides of the width direction end of the column part) using precast concrete (PC: Precast Concrete).

Accordingly, the pillar part (100) is formed so that a number of splice sleeves (110) are provided on the bottom surface of the floor, into which connecting reinforcing bars (10) branching upward from the foundation are inserted, and then ultra-high strength mortar is injected so that when hardened, it is integrally connected to the foundation floor.

At this time, the filling concrete (400) is poured into the composite space (300) between the plurality of wing parts (200: reinforcing bars are inserted inside the wing parts) branched from the pillar part (100), cured, and then formed to secure the integrity between the filler walls (W).

In addition, the filler wall (W) is formed with a step groove (500: a fastening bolt (600) that penetrates in a orthogonal direction is provided on one side of the outer end of the wing portion inserted into the step groove, or a rubber seal gasket (700) for preventing water leakage is inserted) toward the wing portion (200) protruding from the pillar portion (100), so that neighboring filler walls (W-1, W-2 ... W-x) are continuously connected to form an outer structure (square or rectangular structure) of a civil engineering structure (e.g., a utility tunnel).

Meanwhile, a method for constructing a civil engineering structure (e.g., a culvert) using a filler wall according to the present invention is such that a pillar part (100) and a wing part (200: a pair of them are provided horizontally on one side or both sides of the width direction end of the pillar part) are formed as an integral filler wall (W) using precast concrete (PC), and a plurality of splice sleeves (110) are provided on the bottom surface of the pillar part so that connecting reinforcing bars branching upward from the foundation are inserted into the splice sleeves (110) and then formed to be integrally joined with the foundation floor when hardened by injection of ultra-high strength mortar, and the filler wall (W) is formed with a step groove (500: a fastening bolt (600) that penetrates in a orthogonal direction is provided on one side of the outer end of the wing part inserted into the step groove or a rubber seal gasket (700) for preventing water leakage) on the wing part side protruding from the pillar part so that adjacent filler walls (W-1, W-2 ... W-x) are continuous. A filler wall assembly step (S100) in which the outer structure (square or rectangular structure) of a civil engineering structure (e.g., a utility tunnel) is formed by connecting the joints; a filler concrete pouring and curing step (S200) in which filler concrete (400) is poured and cured in each composite part (300) of a plurality of wing parts (200: reinforcing bars are inserted into the inside of the wing parts) branched off from a column part (100); a PC slab (using JRS) assembly step (S300) in which a plurality of PC slabs (800) are placed side by side on the upper end when the outer structure of the civil engineering structure (e.g., a utility tunnel) is completed and then the arranged reinforcing bars are connected by connecting them using steel wires; When the ceiling of a civil engineering structure (e.g., a utility tunnel) is assembled by a PC slab (800), a topping concrete pouring and curing step (S400) is performed to complete the ceiling by pouring on-site topping concrete (900).

In this way, the present invention introduces a new concept of filler wall (referred to as 'wing column') in constructing the outer wall of civil engineering structures including retaining walls of joint culverts, semiconductor wastewater treatment plants, and underground parking lots, and this filler wall is manufactured integrally with a column portion and a wing portion (single wing type or double wing type) using precast concrete (PC), which has the effect of significantly improving the PC manufacturing quality (high density injection is possible with uniform distribution when pouring concrete into the manufacturing mold, and curing is possible at once/previous PC wall products were poured and cured on one side first, then turned over and poured and cured on the other side the next day, which required two days of work - making it impossible to meet the delivery date) compared to conventional methods.

In other words, the filler wall of the present invention is applicable to civil engineering structures that have recently been trending toward large-scale structures. Compared to conventional box-type civil engineering structures, the foundation floor, exterior wall, and slab are each designed as separate structures, and then the unit-type filler walls can be continuously assembled and constructed on the portion forming the exterior wall. This not only achieves a groundbreaking shortening of construction time, but also guarantees outstanding transportability, handling, and workability, and is particularly suitable for the construction of ultra-large civil engineering structures.

In addition, the present invention enables the manufacturing time and construction period to be significantly shortened by the upper and lower simultaneous production method, which not only greatly improves productivity and economy, but also has the effect of ensuring safety and excellent quality while guaranteeing the strength against lateral pressure when filling with inner fill concrete.

Accordingly, the filler wall of the present invention has the effect of securing a high-strength structure due to the initial integration process with the foundation floor (when connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column portion and then ultra-high-strength non-shrinkage mortar is filled and hardened, structural integration with the foundation floor is formed).

This invention fundamentally omits the use of hardware to prevent lateral pressure or buoyancy and the reinforcement work to prevent distortion compared to conventional methods, thereby significantly reducing construction costs and completely eliminating unnecessary waste of labor costs as the work time is reduced by more than twice.

In addition, the present invention has the effect of completing a wall section by continuously connecting and assembling unit-type filler walls toward the wing side (filler wall continuous method: connecting reinforcing bars branched from the foundation floor are inserted into splice sleeves formed on the bottom surface of the column section, and then ultra-high strength non-shrinkage mortar is filled and hardened to form a structural unit with the foundation floor).

This invention not only reduces the assembly time by more than two times, but also enables the PC slab (using JRS) to be assembled immediately after the wall assembly using the filler wall is cured for one day, thereby reducing the construction period by more than half.

In addition, the PC slab of the present invention uses a JRS (Jointless ribbed slab), so that one free end corresponds to the other supporting rib and is continuously connected and assembled, which has the effect of ensuring structural integrity by forming a continuous joint without a separate connecting bar or reinforcing bar.

Accordingly, the JRS (Jointless ribbed slab) of the present invention has the effect of fundamentally preventing the cause of cracks at the connection point (contact portion) compared to the conventional PC slab, thereby greatly improving the durability, stability, and waterproofing of the building.

Figure 1 is an example of a cross-sectional construction of a civil engineering structure (e.g., a utility tunnel) to which a filler wall according to the present invention is applied.
Figures 2 to 4 are assembly diagrams of a single-wing type filler wall according to the present invention.
Figures 5 to 8 are assembly diagrams of a double-wing type filler wall according to the present invention.
Figures 9 and 10 are exemplary views showing that a PC slab according to the present invention is applied and constructed as a JRS slab.

The present invention will now be described in more detail with reference to the attached drawings.

First, as illustrated in FIGS. 1 to 10, the filler wall (W) of the present invention is formed by integrally combining a column part (100: a main surface area that secures a support area set to approximately 300 to 500 mm in width and approximately 600 to 1000 mm in length) having a predetermined length (approximately 5 to 10 m) in the vertical height direction and a wing part (200: an auxiliary surface area in which a pair of wing parts are horizontally branched at a set interval (200 to 500 mm) on one or both sides of the widthwise end of the column part) using precast concrete (PC).

Accordingly, the pillar part (100) is formed so that a number of splice sleeves (110) are provided on the bottom surface of the floor, into which connecting reinforcing bars (10) branching upward from the foundation are inserted, and then ultra-high strength mortar is injected so that when hardened, it is integrally connected to the foundation floor.

At this time, the filling concrete (400) is poured into the composite space (300) between the plurality of wing parts (200: reinforcing bars are inserted inside the wing parts) branched from the pillar part (100), cured, and then formed to secure the integrity between the filler walls (W).

For reference, it is desirable to provide a waterproof groove (120) in the central part of the inner surface of the composite section to increase the bonding area and strengthen the bonding with the filled concrete while blocking leakage of rainwater or moisture flowing in from the side.

In addition, the filler wall (W) is formed with a step groove (500: a fastening bolt (600) that penetrates in a orthogonal direction is provided on one side of the outer end of the wing portion inserted into the step groove, or a rubber seal gasket (700) for preventing water leakage is inserted) toward the wing portion (200) protruding from the pillar portion (100), so that neighboring filler walls (W-1, W-2 ... W-x) are continuously connected to form an outer structure (square or rectangular structure) of a civil engineering structure (e.g., a utility tunnel).

Meanwhile, the method for constructing a civil engineering structure (including a common culvert, a wastewater treatment plant, and an underground parking lot) using a filler wall according to the present invention is composed of a filler wall assembly step (S100), a filling concrete pouring and curing step (S200), a PC slab (using JRS) assembly step (S300), and a topping concrete pouring and curing step (S400).

Accordingly, the filler wall assembly step (S100) forms an integral filler wall (W) by forming a column part (100) and wing parts (200: a pair horizontally provided on one or both sides of the width direction end of the column part) using precast concrete (PC: Precast Concrete).

At this time, a number of splice sleeves (110) are provided on the bottom surface of the column section, and connecting reinforcing bars branching upward from the foundation are inserted into the splice sleeves (110) and then formed to be integrally joined with the foundation floor when hardened by injection of ultra-high strength mortar.

Details of the filler wall + base floor joint of the present invention

And, the filler wall (W) is formed with a step groove (500: a fastening bolt (600) that penetrates in a orthogonal direction is provided on one side of the outer end of the wing portion inserted into the step groove, or a rubber seal gasket (700) for preventing water leakage is inserted) on the wing portion side protruding from the pillar portion, so that neighboring filler walls (W-1, W-2 ... W-x) are continuously connected to form an outer structure (square or rectangular structure) of a civil engineering structure (e.g., a utility tunnel).

At this time, the rubber seal gasket (700) is configured with a joint formed on one side and a hollow tube-shaped elastic part formed on the other side.

Accordingly, the joint of the rubber seal gasket (700) is bonded by being inserted into the mounting groove formed in the step groove of the pillar part, and the mounting groove is formed to form a joint groove while also serving as a kind of waterproof wall.

At this time, the elastic portion of the rubber seal gasket (700) is formed as a hollow elastic body so that when it contacts (comes into close contact with) the wing portion of the adjacent filler wall, the area expands variably in an elliptical shape, thereby widely expanding the sealing area.

These rubber seal gaskets are applicable to both single-wing and double-wing types, and it is preferable that mounting grooves are formed in each of a plurality of step grooves to correspond to a pair of wing sections so that jointing and insertion installation are possible.

In addition, as illustrated in FIG. 8, the filler wall of the present invention (described based on the double-wing type) has a groove formed on one end of the wing portion so that a water stopper in the shape of a flat ruler (a tool shape for measuring length) can be accommodated to promote waterproofing. In particular, it is preferable that an insertion groove (forming a pair with the wing portion of the adjacent filler wall on the other side) is formed on the end of one of the wing portions (the inner portion if the civil engineering structure is a common duct), and a hemispherical flow-blocking bar (a bar formed so that the convex portion is positioned toward the inner side/also called 'water drainage downsout') is installed between the insertion grooves so that water flowing in from the outer side in the width direction of the filler wall does not flow into the inner side of the civil engineering structure but flows down (formed so that water drains along a trench groove formed in the foundation floor).

Thereafter, in the filling concrete pouring and curing step (S200), filling concrete (400) is poured and cured in each composite space (300) between multiple wing sections (200: reinforcing bars are inserted inside the wing sections) branched from the column section (100).

Thereafter, the PC slab (JRS usage) assembly step (S300) is formed by placing a plurality of PC slabs (800) side by side on the upper end after the construction of the outer structure of the civil engineering structure (e.g., common area) through the filler wall (W) is completed, and then connecting the arranged reinforcing bars with steel wires.

At this time, the PC slab is a JRS (JRS slab), and a plurality of support ribs (820) are formed at the bottom of the panel (810), and a support rib (840) having an L-shaped catch (830) is formed at one end in the width direction of the panel, and an ㅡ-shaped free end (850) is formed at the opposite end of the panel corresponding to the support rib (840) so as to ensure continuity when connecting to an adjacent slab, and the longitudinal end is formed so as to hang over the upper surface of the span with the filler wall to achieve quadrilaterals supporting.

Afterwards, the topping concrete pouring and curing step (S400) is formed by pouring on-site topping concrete (900) to complete the ceiling when the ceiling of a civil engineering structure (e.g., a common area) is assembled by the PC slab (800).

The following describes in more detail the filler wall construction process according to the present invention.

(1) Basic construction process

A. Filler wall (wing column) foundation floor mortar - Horizontal standard frame takeover, standard mortar setting (external horizontal standard frame installation)

B. Lower reinforcement arrangement

D. Installation of filler wall (wing column) anchor frame - Template centerline inspection, splice sleeve fixation reinforcement reinforcement

A. Top reinforcement bar arrangement

B. Anchor Frame Welding Fixing

Bar. Concrete finish level marking

4. Concrete pouring

Ah. Yangsaeng (2 days in winter, 1 day in summer)

Okay. PC pillar feeding - standard feeding inspection, pillar feeding inspection

Tea. Column lower level work - Reference level inspection

(2) Filler wall (wing pillar) assembly process

A. Pillar wall (wing pillar) unloading and lifting

B. Filler wall (wing column) lifting LUG mortar injection finishing

D. Filler wall (wing pillar) inversion

Ra. Check the anchoring reinforcing bars of the filler wall (wing column)

Ma. Check the verticality of the pillar (wing column) -> Install

B. Filler Wall (Wing Column) Lifting Lug Dismantling

4. Filler wall (wing column) + foundation floor - Formwork installation

Ah. Filler wall (wing column) + foundation floor - ultra-high strength mortar mixing -> filling -> curing (50MPa/1 day)

Yeah. Filler wall (wing column) continuous joint joint - filling concrete curing (structural integration)

(3) PC slab mounting assembly

JRS slab lifting and stabilization continuous construction -> slab reinforcement arrangement (200% increase in productivity compared to previous years)

(4) Finishing of curing and pouring of topping concrete on site

After pouring the concrete for the filler wall (wing column), the slab is poured continuously -> Finishing with a finishing machine

The present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.

W...filler wall 10...connecting bar
100 ... Column 110 ... Splice Sleeve
200 ... wing part 300 ... composite part
400 ... Filled concrete 500 ... Step groove
600 ... fastening bolt 700 ... rubber seal gasket
800...PC slab 900...topping concrete

Claims (5)

In a filler wall (W) in which a column part (100) and a wing part (200) having a certain length along the vertical height direction are integrally connected through precast concrete (PC),
The column part (100) is formed so that a plurality of splice sleeves (110) are provided on the bottom surface of the floor, and when connecting reinforcing bars (10) branching upward from the foundation are inserted and then ultra-high strength mortar is injected, the column part (100) is formed so that it is integrally connected with the foundation floor (30) when hardened, and the filling concrete (400) is poured into the composite part (300) between the plurality of wing parts (200) branched from the column part (100) and cured, and then the filler wall (W) is formed so that the integrity is secured, and the filler wall (W) is formed so that a step groove (500) is formed toward the wing part (200) protruding from the column part (100) so that the adjacent filler walls (W-1, W-2 ... Wx) are continuously connected to form the outer structure of the civil engineering structure, and the supporting area of the column part (100) is 300 to 500 mm in width and 600 to 1000 mm in length, A pillar wall for civil engineering structures with high quality, easy workability, and maximized productivity and economy through safety in construction and shortening of construction period, characterized in that a pair of wing parts (200) are horizontally branched at intervals of 200 to 500 mm at the widthwise end of a pillar part (100), and a fastening bolt (600) is connected in a orthogonal direction through one side of the outer end of the wing part (200) inserted into the step groove (500).
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