KR101897506B1 - Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same - Google Patents

Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same Download PDF

Info

Publication number
KR101897506B1
KR101897506B1 KR1020160023321A KR20160023321A KR101897506B1 KR 101897506 B1 KR101897506 B1 KR 101897506B1 KR 1020160023321 A KR1020160023321 A KR 1020160023321A KR 20160023321 A KR20160023321 A KR 20160023321A KR 101897506 B1 KR101897506 B1 KR 101897506B1
Authority
KR
South Korea
Prior art keywords
reinforcing bar
retaining wall
casting
reinforcing
fixing groove
Prior art date
Application number
KR1020160023321A
Other languages
Korean (ko)
Other versions
KR20170100886A (en
Inventor
이홍재
이강주
Original Assignee
주식회사 케이씨산업
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 주식회사 케이씨산업 filed Critical 주식회사 케이씨산업
Priority to KR1020160023321A priority Critical patent/KR101897506B1/en
Publication of KR20170100886A publication Critical patent/KR20170100886A/en
Application granted granted Critical
Publication of KR101897506B1 publication Critical patent/KR101897506B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0007—Production methods using a mold
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Retaining Walls (AREA)

Abstract

The present invention relates to a PC and a retaining wall block by in-situ casting, and a method of constructing a retaining wall structure using the same. According to this structure, the wall portion having a somewhat complicated structure is formed of precast concrete, thereby improving the productivity or workability and minimizing the length of the bottom plate formed of precast concrete, thereby improving the transportability or the loadability, The present invention can provide a PC that can easily form an anti-activity wall by raising the frictional force between the bottom plate portion and the ground by completely abutting the bottom plate portion and the ground, and a method of constructing the retaining wall structure using the PC, have.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable wall structure,

More particularly, the present invention relates to a method of constructing a retaining wall structure using a PC and a field casting method, and more particularly, to a method of constructing a retaining wall structure using a precast concrete and a field casting method, And a PC which can easily form an anti-activity wall and a construction method of a retaining wall structure using the same, and to a method of constructing a retaining wall structure using the same.

The retaining wall is a wall structure that is installed to prevent the soil from falling on the back surface against the earth pressure on the back surface, and the retaining wall is formed by precast concrete or on-site casting method.

However, when a retaining wall is formed by precast concrete, the retaining wall does not completely contact with the ground or abandoned concrete, so that the frictional force between the retaining wall and the ground is lowered, and the movement of the retaining wall is adjusted according to the position and size of the anti- There was a problem that it was very difficult to form a wall.

In particular, the L-shaped retaining wall formed by precast concrete has a problem in that it can not be easily carried or transported. In order to solve this problem, the length of the bottom plate must be shortened, There was a falling problem.

In addition, when a retaining wall is formed by a site casting method, it is difficult to form a part having a complicated structure, resulting in a decrease in productivity or workability, and a general problem of a spot installation method, that is, a long air, a large construction cost, , Durability is deteriorated, and the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for constructing a retaining wall by precast concrete and field casting to improve productivity, workability, transportability or loadability, A PC that can easily form an anti-activity wall at the same time as the height of the wall, and a method of constructing a retaining wall structure using the same.

According to an aspect of the present invention, there is provided a wall structure including a wall portion and a bottom plate portion formed integrally with the wall portion and having a length less than a predetermined length, ; And a field cast portion formed on one side of the PC portion to cover the lower portion of the wall portion and the bottom plate portion and extending longer than the bottom plate portion, And a plurality of lower reinforcing bars extending from the bottom plate are embedded in the spot placement portion.

Wherein the wall portion includes a plurality of reinforcing bars and the plurality of upper reinforcing bars are respectively inserted into the reinforcing bars to be engaged with the wall portions so that the upper reinforcing bars are connected to the wall by the fastening portions formed on one side of the upper reinforcing bars, It may be temporarily fixed to the part.

The wall portion may include a reinforcing bar fixing groove communicating with the plurality of reinforcing bars, and the fixing portion may be fixed to the reinforcing bar fixing groove.

The reinforcing bar fixing groove may be closed by a mortar, and the amount of the mortar may be reduced by a plurality of protrusions formed in the reinforcing bar fixing groove.

Wherein the wall portion includes a steel wire insertion port for joining between the PC portions, and when the steel wire insertion port and the reinforcing bar coupling are communicated, and the reinforcing bar fixing groove and the reinforcing bar coupling are closed by mortar, And the air in the reinforcing bar can be discharged through the steel wire insertion port.

An assembled reinforcing bar network may be embedded in the field installation part.

The assembled reinforcing bar network may be connected to the upper reinforcing bars and the lower reinforcing bars.

Wherein an activity preventing groove is formed on a ground surface of the lower portion of the field cast unit or on the upper surface of the ground, and the field cast unit includes an activity barrier wall integrally cast on the field, By this abutment, the activity can be prevented.

A part of the assembled reinforcing bar network may be embedded in the inside of the anti-activity wall, while a part of the assembled reinforcing bar network may be embedded in the inside of the activity blocking wall.

The bottom plate may have a length longer than the length of the PC unit capable of freely moving.

According to another aspect of the present invention, there is provided a method of constructing a retaining wall structure using a PC and a retaining wall block by in-situ casting, comprising: disposing a PC portion; Coupling the upper reinforcing bar to the wall portion; Installing a mold to install a spot installation part; Mounting an assembly reinforcing net; Forming a spot placement portion; And injecting mortar into the reinforcing bar fixing groove and the reinforcing bar coupling hole; And a control unit.

And pouring the abandoned concrete to the lower part before the placement of the PC part.

And forming an activity prevention groove before the placement of the PC unit.

And joining the PC portion disposed adjacent to the PC portion to the PS wire after the placement of the PC portion.

And filling the grout between the adjacent PC units after the placement of the PC unit.

The method may further include the step of installing a mold in a wall portion of the reinforcing bar fixing groove side to inject mortar into the reinforcing bar fixing groove and the reinforcing bar coupling hole.

According to the PC and the method of constructing the retaining wall structure using the PC according to the embodiment of the present invention and the method of constructing the retaining wall structure using the same, it is possible to improve the productivity and the workability by forming the wall part having a somewhat complicated structure with precast concrete, By minimizing the length of the bottom plate made of concrete, it improves the transportability or the loadability, and by putting the bottom plate part on the ground, the bottom plate part and the ground are brought into full contact with each other to increase the frictional force between the bottom plate part and the ground, And a method of constructing a retaining wall structure using the same.

1 is a perspective view showing a retaining wall structure by a PC and a retaining wall block by in-situ casting according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a PC unit disposed in an embodiment of the present invention.
3 is a cross-sectional view taken along line AA of FIG.
4 is a cross-sectional view taken along the line BB in Fig.
5A is a perspective view of a PC unit according to an embodiment of the present invention.
5B is a perspective view of a PC unit according to another embodiment of the present invention.
6 is a perspective view showing a form in which a form is installed for forming a spot placement part.
7 is a view for explaining a method of injecting mortar into a reinforcing bar fixing groove and a reinforcing bar coupling port.
8 is a flowchart illustrating a construction method of a retaining wall structure using a PC and a retaining wall block by in-situ casting according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

Hereinafter, exemplary embodiments will be described on the basis of embodiments best suited for understanding the technical characteristics of the present invention, and the technical features of the present invention are not limited by the illustrated embodiments, And that the present invention may be implemented with other embodiments. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. In order to facilitate the understanding of the embodiments described below, in the reference numerals shown in the accompanying drawings, among the constituent elements that perform the same function in the respective embodiments, the related constituent elements are indicated by the same or an extension line number.

FIG. 1 is a perspective view showing a PC and a retaining wall structure according to an embodiment of the present invention, FIG. 2 is a perspective view showing a PC unit according to an embodiment of the present invention, and FIG. 3 is a cross- Sectional view taken along line AA of FIG.

Referring to FIG. 1, a PC according to the present invention and a retaining wall block 10 by in-situ casting are arranged in a line on a ground or abandoned concrete 300 laid on an upper surface of the ground. Thereby forming a retaining wall structure 1 by in-situ casting.

The PC and the retaining wall block 10 by in-situ casting include a PC part 100 and a field installation part 200.

The PC unit 100 is a concrete or concrete product formed by precast concrete, that is, a mold in a factory, and the on-site casting unit 200 is a concrete or concrete product manufactured by molding a PC and a retaining wall structure 1 It is formed by concrete pouring at construction site. The field installation part 200 may be formed by installing a mold or the like after the placement of the PC part 100 and curing the concrete.

Since the PC part 100 is a precast concrete, the PC according to the present invention and the retaining wall block 10 by in-situ casting have a problem in that, in comparison with a field installation method in which a mold is installed and a concrete is cured, Reduction of construction cost, ease of quality control, and improvement of durability.

Particularly, according to the present invention, since the wall part 110 included in the PC part 100 has a more complicated structure than the field installation part 200, precast can be more effective in production.

On the other hand, since the on-site installation part 200 is formed by in-situ installation, the friction coefficient between the PC according to the present invention and the retaining wall block 10 due to field installation and the abandoned concrete 300 placed on the ground or the upper surface of the ground Can be increased. This is because the field installation portion 200 can completely abut the abandoned concrete 300 on the ground or the upper surface of the ground due to field installation.

In other words, as compared with the case where the retaining wall block is made of precast concrete, the PC according to the present invention and the retaining wall block 10 by in-situ casting increase the coefficient of friction with the ground or the abandoned concrete 300 above the ground, The action by the pressure of the soil and the like can be more easily prevented.

In addition, the anti-motion walls 210 may be formed at the lower portion of the field installation portion 200 by forming the anti-motion grooves 310 on the ground or the upper portion of the ground concrete, . In other words, the anti-activity wall 210 can be formed only by forming the activity preventing groove 310 and by inserting the spot placement unit 200 without performing the separate activity prevention wall construction.

It is possible to prevent the activity of the retaining wall structure 1 using the PC and the retaining wall block 10 or the PC and the retaining wall block due to in-situ casting by the action prevention wall 210.

On the other hand, concave portions 114 and convex portions 116 may be formed on the joint surfaces of the adjacent PC portions 100, respectively. The backing agent 118 may be disposed on both sides of the concave portion 114 and the convex portion 116 between the joining surfaces of the adjacent PC portions 100. The concave portion 114, The grooves 119 may be filled in the space formed by the backup member 116 and the backup agent 118 so that the adjacent PC unit 100 may be bonded.

The PC part 100 includes a wall part 110 and a bottom plate part 130. The wall part 110 has a steel wire insertion hole 122 formed to cross the wall part 110, And a steel wire fixing groove 120 communicating with the steel wire insertion hole 122 may be formed on the joint surface of the wall part 110. [ The bidirectional steel wire fixing device may be disposed in the steel wire fixing groove 120. The PC wire 100 adjacent to each other may be fixed to the PS wire 160 inserted into the steel wire insertion hole 122 by the bi- The interconnection can be fixed. The bidirectional steel wire fixing apparatus will be described later with reference to FIG.

Referring to FIG. 2, the PC unit 100 includes a wall unit 110 and a bottom plate 130. The wall part 110 and the bottom plate part 130 have plate shapes and are integrally formed. The wall part 110 and the bottom plate part 130 constitute the PC part 100 as a whole.

The length a of the bottom plate 130 may be less than a predetermined length. The length (a) may be shortened in order to minimize degradation of the transportability or the loadability of the PC unit 100. Since the PC unit 100 has an L shape, the bottom plate unit 130 protrudes from the wall unit 110. By shortening the length a of the bottom plate unit 130 protruding from the PC unit 100, It is possible to minimize the degradation of the transportability or the loadability of the substrate 100.

If the portion of the retaining wall corresponding to the length (a) of the bottom plate portion 130 is short, there may be a problem that the retaining wall falls down due to the pressure of the gravel and the like. In the case of the retaining wall block 10 by the casting, the problem of the problem can be solved because the spotting portion 200 is put in contact with the bottom plate portion 130.

The length a of the bottom plate 130 may be a predetermined length or more. The length a may be long enough to allow the PC unit 100 to stand on the ground or the abandoned concrete 300. In this case, since the PC unit 100 can be self-standing, there is no need to support the PC unit 100 with a steel bar or the like so that the PC unit 100 does not collapse during installation work of the retaining wall, .

That is, with respect to the length (a) of the bottom plate 130, the length (a) is made shorter than a predetermined length to improve the transportability or the loadability, and the length Can be improved.

A lower reinforcing bar 132 extending in the length direction a of the bottom plate 130 may be embedded in the bottom plate 130. The protruding lower reinforcing bars 132 are embedded in the inside of the site placing part 200 due to the placement of the site placing part 200 and the rigidity of the bottom plate part 130 and the site placing part 200 And the coupling strength between the PC unit 100 and the spot placement unit 200 is increased.

A plurality of reinforcing bars 112 may be formed in the lower portion of the wall portion 110. An upper reinforcing bar to be described later is inserted into the reinforcing bar coupling part 112 and is buried inside the field casting part 200 together with the lower reinforcing bar 132, which will be described later.

As described above, in order to form the activity preventing wall 210 together with the placement of the spotting unit 200, the abandoned concrete 300 at the front of the PC unit 100, (310) may be formed.

Referring to FIG. 3, the upper reinforcing bars 150 may be inserted into the plurality of reinforcing bars 112 (see FIG. 2) formed at the lower portion of the wall portion 110. The upper reinforcing bars 150 may be inserted into the reinforcing bars 112 and extend in the same direction as the lower reinforcing bars 132.

The upper reinforcing bars 150 may be inserted into the reinforcing bars 112 and the reinforcing bars 150 may be formed at the ends of the upper reinforcing bars 150 at the side of the reinforcing bars fixing grooves 111. The upper reinforcing bar 150 can be temporarily fixed to the wall part 110 by the fastening part 152.

3, the latching part 152 may have a bent shape, but it may have a shape of a bolt head or the like as shown in FIG. Further, in addition to the above shape, the engaging portion 152 may have a shape that can be received in the reinforcing bar fixing groove 111 without passing through the reinforcing bar coupling 112.

The assembled reinforcing bar net 220 can be embedded and embedded in the inside of the spot placement unit 200. The rigidity of the spot placement unit 200 can be increased by the assembled reinforcing bar net 220. [

The assembled reinforcing net 220 may be connected to the upper reinforcing bars 150 and the lower reinforcing bars 132. The connection may be made by a known coupler (not shown) or welding.

A portion of the assembled reinforcing bar net 220 may also be disposed in the interior of the anti-lock wall 210 to be buried. Thus, the rigidity of the anti-motion wall 210 can be increased.

The reinforcing bar coupling 112 and the steel wire insertion port 122 may be formed to communicate with each other. When the reinforcing bar coupling 112 is closed by the mortar 426, the air in the reinforcing bar coupling 112 can be discharged through the steel wire insertion port 122 by the communication. This will be described in detail later.

According to an embodiment of the present invention, after the field installation part 200 is installed, the reinforcing bar fixing groove 111 and the reinforcing bar coupling part 112 may be closed by the mortar 426. In this case, before the mortar 426 finishes, concrete to be laid to form the site placement part 200 flows through the reinforcing bar coupling 112, and the reinforcing bar coupling 112 and the steel wire insertion hole 122 may be clogged. Therefore, in order to prevent the inflow of concrete, a backup agent 113 may be installed on the reinforcing coupling part 112 on the side of the field installation part 200.

Fig. 4 is a cross-sectional view taken along line B-B of Fig. 1, showing a bidirectional steel wire fixing apparatus for bonding and fixing adjacent PC units.

The bidirectional wire fixing device 162 is disposed in the wire fixing groove 120 of the PC unit 100 and the PS wire 160 is inserted into the wire insertion hole 122 to be coupled to the bidirectional wire fixing device 162 .

The bidirectional wire fixing device 162 includes a hollow coupling member 164 and a cone shaped wedge hole 170 or 170 'formed at the center thereof. The wedge hole 170 or 170' A pair of wedge cone members 166 and 166 'detachably coupled to both ends of the coupling member 164 so as to face the outer side of the coupling member 164 and an end portion of the PS wire 160 And may include wedges 168 and 168 'to fix the PS wire 160 by being inserted into each of the wedge holes 170 and 170' of the wedge cone members 166 and 166 '.

A thread may be formed on the inner circumferential surfaces at both ends of the coupling member 164 so that the pair of wedge cone members 166 and 166 'may be detachably fastened to the coupling member 164, A thread line corresponding to the thread of the coupling member 164 may be formed on the outer circumferential surface of the pair of wedge cone members 166 and 166 'coupled to both ends of the member 164. The wedge cone members 166 and 166 'can be releasably screwed to both ends of the coupling member 164 by the thread.

Cone shaped wedge holes 170 and 170 'are formed at the centers of the pair of wedge cone members 166 and 166'. The wedge holes 170 and 170 'are formed in the wedge holes 170 and 170' The wedges 168 and 168 'having a cone shape corresponding to the PS wire 160 can be inserted.

The PS wire 160 entering from the left side and the PS wire 160 entering from the right side are respectively fixed by a bidirectional steel wire fixing device 162. Thereby, the adjacent PC part 100 can be jointly fixed have.

In order to prevent breakage due to direct contact between the fillets of the grout material and the joining surfaces of the PC parts 100, the steel wire fixing grooves 120 may be filled with grout material, A backup agent 176 may be disposed.

5A is a perspective view of a PC unit according to an embodiment of the present invention, illustrating a reinforcing bar fixing groove according to an embodiment of the present invention.

Referring to FIG. 5A, the reinforcing bar fixing groove 111 is formed on the opposite side of the bottom plate 130, and may be formed to be in communication with a plurality of reinforcing bars 112 formed on the wall 110 at the same time. When mortar is injected into the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112 from the reinforcing bar fixing groove 111, workability can be improved by the communication.

5A, the reinforcing bar fixing grooves 111 may be formed separately for each of the plurality of reinforcing bar coupling holes 112. In addition, However, in this case, the mortar must be injected through each reinforcing bar fixing groove 111 in order to finish the reinforcing bar fixing groove 111 and the reinforcing bar coupling hole 112 by the molten tie, so that the workability may be lowered.

Therefore, it is preferable that one reinforcing bar fixing groove 111 is formed so as to communicate with a plurality of reinforcing bars 112 as in the former.

5B is a perspective view of a PC unit according to another embodiment of the present invention, illustrating a reinforcing bar fixing groove according to another embodiment of the present invention.

Referring to FIG. 5B, the plurality of protrusions 154 may be formed in the reinforcing bar fixing groove 111. The projecting portion 154 is formed in a space in the reinforcing bar fixing groove 111 and may be formed in a space outside the space occupied by the end of the reinforcing bar coupling 112 and the engaging portion 152 of the upper reinforcing bar 150.

By forming the projecting portion 154, the amount of mortar filled in the reinforcing bar fixing groove 111 can be reduced.

The reinforcing bar fixing groove 111 may be formed so as to be in communication with the plurality of reinforcing bars 112 at the same time when the protrusion 154 is formed, 111 and the reinforcing bar coupling 112 can be improved.

6 is a perspective view showing a form in which a form is installed for forming a spot placement part.

Referring to FIG. 6, a mold 400 may be installed to form the spotting unit 200. The mold 400 may be installed to fit the outer shape of the spotting unit 200 and may abut the bottom of the wall 110 of the PC unit 100 and the corner of the bottom plate 130.

6, a form 400a is provided between adjacent PC units 100 in order to separately form a spot placement unit 200 for each PC unit 100. However, unlike the case shown in FIG. 6, The installation of the mold 400a may be omitted.

However, in the case of replacing the retaining wall block 10 by the PC and the on-site casting, the mold 400a between the PC units 100 is installed, It may be more effective in terms of ease of operation.

Meanwhile, after the mold 400 is installed, the assembled reinforcing bar 220 may be installed in the mold 400 according to the shape of the mold 400.

7 is a view for explaining a method of injecting mortar into a reinforcing bar fixing groove and a reinforcing bar coupling port.

Referring to FIG. 7, the spotting portion 200 may be formed before the mortar 426 is injected. In this case, as described above, the backup agent 113 is installed to prevent the concrete for forming the spot placement unit 200 from blocking the communication space between the reinforcing bar coupling 112 and the steel wire insertion port 122 .

A mold 420 is installed in the reinforcing bar fixing groove 111 for injection of the maltcrete 426. In addition, a mortar injection pipe 422 and a mortar discharge pipe 424 may be installed so as to pass through the mold 420 and be connected to the reinforcing bar fixing groove 111.

As described above, when the reinforcing bar fixing grooves 111 are formed so as to communicate with the plurality of reinforcing bar coupling holes 112, one mortar injection pipe (one for each retaining wall block 10) 422 and a mortar discharge pipe 424 may be installed (see Fig. 7C).

When the mortar 426 is injected through the mortar injection pipe 422, the mortar 426 is filled in the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112. At this time, the air existing in the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112 is discharged through the steel wire insertion port 122. That is, since the reinforcing bar 112 and the steel wire insertion port 122 are communicated with each other, the air can be discharged, and the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112 are tightly filled with the mortar 426 .

The mortar 426 to be injected is filled through the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112 and then discharged through the mortar discharge pipe 424.

When the mortar 426 to be injected fills both the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112, the redundant injected mortar 426 is discharged through the mortar discharge pipe 424.

8 is a flowchart illustrating a construction method of a retaining wall structure using a PC and a retaining wall block by in-situ casting according to an embodiment of the present invention.

In order to construct the retaining wall structure 1 by using the retaining wall block 10 by the PC, first, the step of disposing can be performed at a position where the retaining wall structure 1 is to be installed (S10).

The step S10 may be a step of flattening the ground to arrange the retaining wall block 10 by placing the PC in the field, And the like.

Next, the abandoned concrete 300 may be installed at a position where the retaining wall structure 1 is installed using the retaining wall block by the PC and the field installation (S11). At this time, the abandoned concrete 300 may be installed in the activity preventing grooves 310 along the surface of the activity preventing grooves 310 (see FIG. 3) ) Can be omitted.

Next, a plurality of PCs and a cast-in wall block 10 are arranged in a row on the abandoned concrete 300 (S12). At this time, the activity preventing groove 310 is positioned at a site where the field installation part 200 is to be installed.

Next, the PC units 100 arranged in a line are mutually bonded and fixed (S13). As described above, the bonding is performed by filling the grooves 119 in the spaces formed by the concave portions 114, the convex portions 116 and the backup agent 118, and the fixing is performed in both directions And fixing the PS steel wire 160 inserted into the steel wire inserting hole 122 by the steel wire fixing device 162.

Next, a plurality of upper reinforcing bars 150 are inserted into the plurality of reinforcing bars 112, respectively, so that the upper reinforcing bars 150 are temporarily coupled to the wall portions 110 (S14).

The construction procedure of the step S13 of joining and fixing the PC units 100 and the step S14 of joining the upper reinforcing bars 150 and the wall unit 110 may be changed.

Next, the formwork 400 may be installed to form the field installation part 200 (S15). However, the order of the step S14 in which the upper reinforcing bar 150 and the wall part 110 are combined and the step S15 in which the formwork is installed may be changed.

Next, the assembled reinforcing bar net 220 may be installed in the mold 400. As described above, the assembled reinforcing bar 220 may be connected to the upper reinforcing bar 150 and the lower reinforcing bar 132, and the connection may be made by a coupler, welding, or the like.

Next, concrete is placed and cured inside the mold 400 to form a spot placement part 200 (S17). In the case where the activity preventing grooves 310 are formed in the ground or the abandoned concrete 300, the activity preventing walls 210 may be formed together with the formation of the field erected portions 200. The mold 400 is removed when curing of the concrete ends.

Meanwhile, a backup agent 113 may be installed in the reinforcing bar 112 of the spot installation part 200 before the concrete is inserted.

Next, the mold 420 is installed in the reinforcing bar fixing groove 111, and the mortar 426 is injected through the mortar injection pipe 422 installed in the mold 420 (S18). The mortar 426 is filled in the reinforcing bar fixing groove 111 and the reinforcing bar coupling 112 by the mortar 426. Thereafter, the mold 420 is removed.

Finally, a step of backfilling the soil on the top of the field installation part 200 may be further included (S19).

The construction of the retaining wall structure 1 using the PC and the retaining wall block by in-situ casting is completed.

1: Retaining wall structure using retaining wall block by PC and field installation
10: Retaining wall block by PC and field installation
100: PC section
110:
130:
200: Field installation part

Claims (16)

A PC portion having a wall portion and a bottom plate portion integrally formed with the wall portion and having an L-shape as a whole; And
A part of the lower part of the wall part and a part of the PC part to cover the bottom part, the part being longer than the bottom part;
, ≪ / RTI &
A plurality of upper reinforcing bars extending from the wall portion so as to be assembled so as to be assembled, and a plurality of lower reinforcing bars extending from the bottom plate portion are embedded in the field casting portion,
The wall portion includes a plurality of reinforcing bars, and the plurality of upper reinforcing bars are inserted into the reinforcing bars and engaged with the wall portions,
Wherein the wall portion includes a steel wire insertion port for joining between the PC portions, and when the steel wire insertion port is in communication with the steel bar coupling portion and the steel bar coupling portion is closed by mortar, Respectively,
A PC in which a backup agent is installed in the reinforcing bar on the side of the on-site casting part, and a retaining wall block by in-situ casting. The method according to claim 1,
A PC in which the upper reinforcing bars are temporarily fixed to the wall portion by a retaining portion formed at one side of the upper reinforcing bars, and a retaining wall block by in-situ casting. 3. The method of claim 2,
The wall portion includes a reinforcing bar fixing groove communicating with the plurality of reinforcing bars, and the reinforcing bar fixing portion is fixed to the reinforcing bar fixing groove. The method of claim 3,
Wherein the reinforcing bar fixing groove is closed by a mortar,
A PC in which the amount of the mortar is reduced by a plurality of protrusions formed in the reinforcing bar fixing groove, and a retaining wall block by in-situ casting. The method of claim 3,
Wherein the reinforcing bar fixing groove and the reinforcing bar coupling hole are closed by mortar, wherein the reinforcing bar fixing groove and the air in the reinforcing bar coupling hole are discharged through the steel wire insertion hole, and a retaining wall block by in-situ casting. The method according to claim 1,
A PC in which the assembled reinforcing steel net is buried in the above-mentioned cast-in-place portion, and a retaining wall block by casting in situ. The method according to claim 6,
The assembled reinforcing bar network is connected to the upper reinforcing bars and the lower reinforcing bars by a PC and a retaining wall block by in-situ casting. The method according to claim 1,
An anti-motion groove is formed on a ground surface of the lower part of the field installation part or on the upper part of the ground, and the field installation part includes an anti-
A PC in which the activity preventing groove and an outer surface of the activity preventing wall are in contact with each other so that the activity is prevented, and a retaining wall block by in-situ casting. 9. The method of claim 8,
Wherein an assembled reinforcing bar net is embedded in the on-
A PC in which a part of the assembled reinforcing bar net is embedded in the inside of the abovementioned active prevention wall, and a retaining wall block by casting in the field. The method according to claim 1,
Wherein the bottom plate has a PC having a length longer than the length of the PC part capable of self-standing, and a retaining wall block by in-situ casting. Comprising the steps of: disposing a PC portion including a wall portion and a bottom plate portion integrally formed with the wall portion;
Wherein the wall portion includes a plurality of reinforcing bars, and inserting a plurality of reinforcing bars into each of the reinforcing bars to couple the reinforcing bar to the wall portion;
Installing a mold to install a spot installation part;
Mounting an assembly reinforcing net;
Installing a backup agent in the reinforcing bars on the side of the spot installation part;
Forming the spot placement portion; And
Wherein the wall portion includes a steel wire insertion port for joining between the PC portions, and the steel wire insertion port and the steel bar coupling hole are communicated with each other, so that the mortar is injected into the steel bar coupling hole, A step of discharging;
A method of constructing a retaining wall structure using a PC and a retaining wall block by in - situ casting. 12. The method of claim 11,
The method for constructing a retaining wall structure using a PC and a retaining wall block by in-situ casting, further comprising the step of casting abandoned concrete at the bottom before the placement of the PC part. 12. The method of claim 11,
And forming an activity prevention groove before the placement of the PC unit, and a method of constructing a retaining wall structure using a retaining wall block by in-situ casting. 12. The method of claim 11,
A step of joining the PC part disposed adjacent to the PC part to the PS wire after the placement of the PC part, and a method of constructing a retaining wall structure using a retaining wall block by in-situ casting. 12. The method of claim 11,
And filling the grout between the adjacent PC units after the placement of the PC unit, and a method of constructing a retaining wall structure using a retaining wall block by in-situ casting. 12. The method of claim 11,
Wherein the wall portion includes a reinforcing bar fixing groove communicating with the reinforcing bar coupling portion and further comprising the step of installing a mold in a wall portion of the reinforcing bar fixing groove to inject mortar into the reinforcing bar fixing groove and the reinforcing bar coupling portion, Construction method of retaining wall structure using retaining wall block by field casting.
KR1020160023321A 2016-02-26 2016-02-26 Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same KR101897506B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160023321A KR101897506B1 (en) 2016-02-26 2016-02-26 Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160023321A KR101897506B1 (en) 2016-02-26 2016-02-26 Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same

Publications (2)

Publication Number Publication Date
KR20170100886A KR20170100886A (en) 2017-09-05
KR101897506B1 true KR101897506B1 (en) 2018-09-12

Family

ID=59925040

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160023321A KR101897506B1 (en) 2016-02-26 2016-02-26 Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same

Country Status (1)

Country Link
KR (1) KR101897506B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3031057B2 (en) * 1992-05-13 2000-04-10 富士電機株式会社 vending machine
KR100640716B1 (en) * 2006-04-10 2006-11-01 주식회사 삼주이앤텍 Precast concrete block for cantilever retaining wall and construction method using the same
KR101315290B1 (en) * 2013-01-03 2013-10-07 주식회사 인우 (Inwoo.Co.Ltd) Precast block of retaining wall and construction method using thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3031057U (en) * 1996-05-09 1996-11-12 孝一 遠藤 Plug-in precast vertical panel wall
JPH11131504A (en) * 1997-10-31 1999-05-18 Kazuko Abe Manufacture of l-shaped retaining wall of natural stone and construction thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3031057B2 (en) * 1992-05-13 2000-04-10 富士電機株式会社 vending machine
KR100640716B1 (en) * 2006-04-10 2006-11-01 주식회사 삼주이앤텍 Precast concrete block for cantilever retaining wall and construction method using the same
KR101315290B1 (en) * 2013-01-03 2013-10-07 주식회사 인우 (Inwoo.Co.Ltd) Precast block of retaining wall and construction method using thereof

Also Published As

Publication number Publication date
KR20170100886A (en) 2017-09-05

Similar Documents

Publication Publication Date Title
KR101556545B1 (en) Method for constructing using a double wall Precast Concrete
KR101859136B1 (en) Cast in place top base having deep pile and construction method thereof
KR102151174B1 (en) Joint for Precast Columns and Foundation
JP4467881B2 (en) Pile head joint structure and pile head fitting cylinder
KR101561212B1 (en) Concrete precast wall and the construction method using the same
KR101591983B1 (en) Self assembly pillar for pier and construction method thereof
KR20190069910A (en) Installation structure and method of precast concrete culvert
KR101912324B1 (en) screw pile and construction method of retaing wall
KR102298436B1 (en) Vertical concrete structure and method for constructing the same
KR102057316B1 (en) Construction method for connecting precast concrete panel
KR102227414B1 (en) Joint structure of underground exterior wall and slab
KR101753744B1 (en) Structure and Constructing Method of Integrated Pier-Base
KR101897506B1 (en) Retaining wall block using pc and cast-in-place concrete, and construction method of retainging wall structure using the same
KR100774885B1 (en) The assembly anchor bolt structure which is reclaimed in the fundamental infrastructure and It used fundamental infrastructure operation method
JP6624797B2 (en) Construction method of pile foundation structure and pile foundation structure
KR102082481B1 (en) Continuous construction type pc wall and construction method thereof
KR100661301B1 (en) Support structure for concreting in a head of steel pile and construction method using it
KR101835094B1 (en) Wall structure using precast concrete panel and construction method thereof
JPH08135087A (en) Precast concrete column member and joint method thereof
KR102125808B1 (en) Precast unit For large wall construction
JP2019148158A (en) Wall balustrade construction method and wall balustrade
KR102012470B1 (en) Frame Unit of Wall and Coupling Beam, and Construction Method for Building Structures Using the Same
KR100880022B1 (en) Prefabricated precast concrete pumping plant manhole
KR20190007331A (en) Concrete retaining wall using reinforcement net and construction method thereof
JP7079166B2 (en) Tunnel internal structure and its construction method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant