KR101521557B1 - Underground wall construction method using the wall members - Google Patents

Abstract

The present invention relates to a rectangular box structure body 110 having upper and lower trim portions; A plurality of partition walls 120 formed in the body 110 to have a lattice structure; An engaging part 140 formed on one side of the main body 110 so as to be vertically slidably engaged with the binding member 150a of the adjacent wall member 100a; And a coupling part (150) formed on the other side of the main body (110) so as to be vertically slidably engaged with the engaging member (140b) of the other adjacent wall member (100b). By presenting the wall and its construction method, it is possible to reduce the number of connection parts of the earth wall and improve the watertightness and the waterproof property by making the connection of the connection part solid, and the structure of the underground wall and the main wall As a result, it is possible to use as a main structure wall after construction and to reduce the required section of the wall, to secure the strength of permanent wall structure permanently and shorten the construction period.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing an underground wall using a wall member having excellent water-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering field, and more particularly, to a wall member having excellent water and water resistance, an underground wall using the same, and a construction method thereof.

Top-down construction methods are actively used as a method of constructing a wall in the ground and constructing an architectural structure based on the wall.

This is accomplished by forming an underground wall (earth retaining wall) as a hypothetical structure by cast in place pile (CIP) method, a soil cement wall (SCW) method, and forming a wall , And a method of constructing a building structure by forming a column or a bearing wall on the main wall is adopted.

That is, the ground is pierced along the excavation area, and a reinforcing material such as a reinforcing net or H-file is inserted into the perforation hole, and then a concrete (cement concrete or soil concrete) is placed to form a wall.

However, in such a conventional underground wall construction method, there is a fear that when the wall is inserted into the wall, there are many connecting portions of the wall, the connection is poor, displacement occurs, and settlement of the back ground occurs, and water repellency and water resistance of the wall are lowered .

In order to prevent the above problem, when a sheet file is inserted, one wedge file is inserted per each 30 sheet files to reinforce the longitudinal displacement. However, since the prevention effect is insufficient, a more fundamental solution is required It is true.

In addition, conventionally, concrete is hardly charged in the connection portion of the wall, so that the structural stability and strength of the wall are deteriorated.

On the other hand, after curing of reinforced concrete, earth pressure support by soil wall is the most important until the strength development. Therefore, reinforcement is assembled in the field to reinforce the wall.

However, in the conventional underground wall construction method, it is difficult to secure the space between the wall and the reinforcing bar, and there is a possibility that the reinforcing bars are separated as time elapses, so that the wall is displaced and the strength is lowered.

In addition, since a lot of sections of the underground wall and the main wall are required, an economical cost is excessively required and a construction period is prolonged.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to reduce the number of connection portions of a to-wall member and to firmly bond the connection portions to improve car water and waterproof, (Sidewall), it is possible to utilize it as a structure of the earth wall during construction, as a main structural wall after construction, to reduce the required cross-section of the wall, and to secure the strength of a permanently excellent wall. And an object thereof is to provide an underground wall and a construction method thereof.

In order to solve the above-described problems, the present invention includes a main body 110 of a rectangular box structure having upper and lower trim portions; A plurality of partition walls 120 formed in the body 110 to have a lattice structure; An engaging part 140 formed on one side of the main body 110 so as to be vertically slidably engaged with the binding member 150a of the adjacent wall member 100a; And a coupling part (150) formed on the other side of the main body (110) so as to be vertically slidably engaged with the engaging member (140b) of the other adjacent wall member (100b) .

The end face of the main body 110 may be formed to be narrowed toward the one side so as to be inserted into the insertion portion 111a formed on the other side of the adjacent wall member 100a.

And an insertion part 111 formed on the other side of the main body 110 so that the other adjacent wall member 100b is inserted into the main body 110. The insertion part 111 is formed on the front surface and the rear surface of the main body 110, And a wing portion 112 extending along the longitudinal direction.

It is preferable that one or both of the front surface and the rear surface of the main body 110 are formed so as to be inclined inward.

It is preferable that the front surface of the main body 110 is inclined inward so that the front surface of the main body 110 and the front surface of the insertion portion 111a of the adjacent wall member 100a are flat.

It is preferable that a plurality of the latching part 140 and the binding part 150 are formed at the front edge and the rear edge of the main body 110.

And a flare preventing member 160 installed in the other side of the main body 110 in the width direction to prevent the wing portion 112 from being opened when the other adjacent wall member 100b is inserted Do.

It is preferable that a plurality of the flare prevention members 160 are installed at intervals along the height direction of the main body 110.

A coating type index material (not shown) is applied to at least one of the joint surfaces of the main body 110, the adjacent wall member 100a and the tangential wall member 100b, and the engagement surfaces of the engagement portion 140 and the coupling portion 150 170 are preferably applied.

And a guide member 130 installed on the inner surface of the partition 120. The guide member 130 includes a tubular member 131 through which the reinforcing bar 133 is inserted; And an interval member 132 which is engaged with the inner surface of the tubular member 131 and the partition 120 or the inner surface of the tubular member 131 and the inner surface of the partition 120 to maintain mutual spacing therebetween Do.

Preferably, the guide members 130 are provided on the inner surface of the barrier ribs 120 at intervals in the height direction and the width direction.

The present invention is an underground wall body using the wall member (100), wherein a reinforcing steel bar (133) is inserted along the height direction of the wall member (100) 200) are presented together.

The present invention provides a method of constructing the above-described underground wall (200), comprising the steps of: continuously forming a plurality of perforation holes (10); A grouting step of grouting inside the plurality of through holes (10); A wall member inserting step of inserting the wall member 100 along the longitudinal direction of the plurality of perforation holes 10; And an underground wall forming step of forming an underground wall body 200 by pouring concrete into the wall member 100. FIG.

The step of inserting the wall member may be performed by inserting the main body 110 through the coupling part 140 formed on one side of the main body 110 and the coupling part 150 formed on the other side of the main body 110, And a wall member engaging step of engaging the wall member 100a and the other adjacent wall member 100b in the longitudinal direction.

And a step of removing and cleaning the inner grout of the wall member 100 between the wall member inserting step and the ground wall forming step.

A step of excavating the front region of the ground wall body 200 after the ground wall forming step; Installing a connecting member (320) on a front surface of the exposed underground wall (200); Coupling the reinforcing assembly (310) and the connecting member (320); And a finishing wall forming step of forming a finishing wall body 400 by pouring concrete so that the reinforcing bar assembly 310 is embedded.

The connecting member 320 preferably includes a stud.

The ground wall forming step may further include an outer grouting step of grouting a region between the plurality of perforation holes 10 and the wall member 100.

The present invention reduces the number of connection portions of the toothed wall body and improves the watertightness and waterproof property of the connecting portion to be firmly joined, and fuses the structure of the underground wall (earth retaining wall) and the main wall (sidewall) As a structure of the earth wall, it can be used as a main structural wall after construction, reducing the required cross section of the wall, and securing the strength of the permanent wall permanently, and an underground wall using the same and its construction method.

1 to 5 show an embodiment of a wall member according to the present invention and an underground wall using the wall member,
1 is a plan view of one embodiment of a wall member;
2 is a plan view showing an installation state of an embodiment of the wall member;
Fig. 3 is a plan view showing a coupled state of a wall member. Fig.
4 is a perspective view showing an installation state of a displacement preventing shim member.
5 is a plan view of the installation of an underground wall, a reinforcing bar assembly and a connecting member.
6 to 10 illustrate an embodiment of a method of constructing an underground wall according to the present invention,
6 is a plan view showing a drilling step;
7 is a plan view showing a wall member inserting step and a joining step;
8 is a plan view showing an underground wall forming step.
9 is a perspective view showing a step of forming a closed wall.
10 is a plan view showing a state in which a ground wall and a closed wall are in common use.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1 and subsequent drawings, the wall member 100 proposed by the present invention includes a main body 110 of a rectangular box structure having a top and a bottom; A plurality of partition walls 120 formed in the body 110 to have a lattice structure; An engaging portion 140 formed on one side of the main body 110 so as to be vertically slidably engaged with the binding member 150a of the adjacent wall member 100a; And a coupling unit 150 formed on the other side of the main body 110 so as to be vertically slidably engaged with the engaging member 140b of the other adjacent wall member 100b.

That is, in the conventional ground wall construction method, when the wall is inserted, there is a possibility that the joining of the connection portions of the wall is poor and displacement occurs, thereby decreasing the wall formability, water resistance and strength. The joining of the connecting portions of the wall is made solid through the coupling portion 150, so that the stability at the time of inserting the wall is ensured, and the effect of improving the water repellency, the waterproofness and the strength can be obtained.

Although the engaging part 140 and the coupling part 150 are simple in terms of the vertical slide fitting engagement, the coupling can be firmly maintained, so that the operation is easy and the structural stability can be secured.

In addition, the present invention eliminates the need to reinforce the wedge file with respect to the longitudinal displacement by separately inserting the wedge file, thereby reducing the economic cost and facilitating the construction.

In addition, the wall member 100 of the present invention is characterized in that the gap between the barrier rib 120 and the reinforcing bar 133 can be secured through the structure in which the guide member 130 is provided on the inner surface of the barrier rib 120 5).

The upper guide member 130 includes a tubular member 131 to which the reinforcing bar 133 is inserted and a tubular member 131 which is formed on the inner side of the tubular member 131 and the partition wall 120 or between the tubular member 131 and the partition 120 And a spacing member 132 which is coupled to the inner rear surface to maintain mutual spacing.

That is, in the conventional underground wall construction method, it is difficult to secure the space between the wall and the reinforcing bars, and the reinforcing bars may be separated, so that the reinforcing effect of the walls of the reinforcing bars is significantly lowered. However, The gap between the inner surface of the wall member 100 and the reinforcing bar 133 can be maintained to reliably prevent such a problem.

Since the interval between the partition wall 120 and the reinforcing bar 133 is permanently ensured through the spacing member 132, the reinforcing effect by the reinforcing bar 133 can be enhanced to maximize the strength of the wall, The effect of preventing the occurrence of displacement can be obtained.

In addition, there is an advantage that it is possible to further improve the water repellency and waterproofness of the wall by preventing the occurrence of displacement in the wall.

In addition, the wall member 100 of the present invention is formed of an iron plate structure, and is stable in penetration into the ground, and is excellent in durability and structural stability.

Since the wall member 100 is formed of a steel plate structure and the mutual binding force of the plurality of wall members is strengthened and the guide member 130 is installed, excellent strength and structural stability can be ensured.

That is, after the finishing wall body 400 is formed on the entire surface of the underground wall body 200 formed by pouring the concrete into the wall member 100, the integrated structure of the underground wall body 200 and the finishing wall body 400 is implemented, It can be used as a permanent wall (FIG. 9).

In other words, conventionally, since the underground wall can not permanently exhibit its function as a wall due to the above problems, it is used only as a hypothetical example during construction, and a finished wall, that is, a wall formed at the front of the underground wall is permanently used.

In other words, since the underground wall and the finishing wall must be double-constructed, the cross-sectional area is increased, resulting in an economical cost and a long construction period.

However, since the wall member 100 of the present invention can permanently secure excellent strength and structural stability, it can be used as a soil facility during construction and can exhibit the function of the main structural wall even after construction.

Therefore, the underground wall body 200 using the wall member 100 of the present invention and the finishing wall body 400 provided on the front surface thereof can be integrated and used as a permanent wall body.

As a result, it is possible to reduce the required section of the wall to improve the economical efficiency, shorten the construction period, and maximize the strength of the wall.

The wall member 100 of the present invention is designed to have a structure in which the engaging portion 140, the coupling portion 150 and the guide member 130 are provided therein or a structure in which the reinforcing bar 133 is installed in the structure, Since the production is done, all the processes are completed with only the concrete pouring after the penetration.

Therefore, there is an advantage that the operation is very simple.

The locking part 140 and the coupling part 150 of the wall member 100 of the present invention are respectively slidably engaged with the adjacent wall member 100a and the other adjacent wall member 100b in the vertical direction.

In addition, the main body 110 is formed such that the end face of the main body 110 is narrowed toward the one side so as to be inserted into the insertion portion 111a formed on the other side of the adjacent wall member 100a.

The insertion portion 111 is formed on the other side of the main body 110 so that the other adjacent wall member 100b is inserted into the main body 110. The insertion portion 111 extends along the longitudinal direction of the front and rear surfaces of the main body 110, And a formed wing portion 112 (Figs. 2 and 3).

Specifically, one or both of the front surface and the rear surface of the main body 110 is formed so as to be inclined inward, and inserted into the insertion portion 111a formed on the other side of the adjacent wall member 100a.

Particularly, it is structurally preferable that the front surface of the main body 110 is formed so as to be inclined inward.

This structure is advantageous in that it is easy to form the closed wall 400 because the front surface of the main body 110 and the front surface of the insertion portion 111a of the adjacent wall member 100a are flat.

In addition, a plurality of the engaging portions 140 and the coupling portions 150 are formed at the front edge and the rear edge of the main body 110, so that more rigid coupling is achieved.

In the meantime, it is preferable that the wall member 100 according to the present invention is provided with a flare preventing member 160 along the width direction inside the main body 110 (FIG. 4).

Accordingly, it is possible to prevent the wall member 100 from being deformed due to the pressure, and it is possible to secure the structural stability permanently.

It is more preferable that a plurality of such splash-proof members 160 are provided at intervals along the height direction of the main body 110.

That is, conventionally, it is difficult to fill concrete at the connection portion of the wall, so that the structural stability and strength of the wall are deteriorated.

On the other hand, in the present invention, since the plurality of splash-proof members 160 are installed at intervals along the height direction, it is easy to fill the concrete through the gap.

As a result, the structural stability and strength of the wall member 100 can be sufficiently secured.

The coating type index material 170 (at least one of the joining surfaces of the main body 110 and the adjacent wall member 100a and the tangential wall member 100b, and the joining surfaces of the coupling portion 140 and the coupling portion 150) ) Is preferably applied.

The reinforced reinforcing bars 133 provided on the wall member 100 have a shear reinforcement function and a shear reinforcement function. So that the wall 400 functions as a bending member, so that excellent structural stability can be secured.

More specifically, the guide member 130 of the present invention is characterized in that a plurality of guide members 130 are provided on the inner surface of the partition 120 with an interval in the height direction and the width direction.

The reinforcing steel bars 133 are inserted into the plurality of pipe members 131 along the height direction and the concrete wall is inserted into the wall member 100 to form the underground wall member 200.

The underground wall construction method proposed by the present invention is constituted by the following process.

First, a perforation step is performed in which a plurality of perforation holes 10 are continuously formed in the ground (FIG. 6).

A wall member inserting step is performed in which the wall member 100 is inserted along the longitudinal direction of the perforation hole 10 after grouting is performed inside the plurality of perforation holes 10 (FIG. 7).

The wall member 100 is manufactured in a factory with the above-described retaining portion 140 and the binding portion 150 installed therein, and is inserted in the field.

In addition, since the guide member 130 and the reinforcing bar 133 are installed on the inner surface of the partition 120 in the factory, the concrete is installed only in the field so that the construction is very easy.

In the step of inserting the wall member, the main body 110 is connected to the adjacent wall member 100a through the engaging part 140 formed on one side of the main body 110 and the coupling part 150 formed on the other side of the main body 110. [ And the other adjacent wall member 100b in the longitudinal direction.

Since the joining step of the wall member is performed by the vertical slide fitting, the joining operation is very easy and the construction period can be shortened.

In addition, since the connection between the wall members 100 is firmly established, it is possible to reliably prevent the occurrence of displacement or fall-off in the step of inserting the wall member, It is possible to maximize the car water-permeability and water-resistance of the underground wall body 200.

Also, it is desirable to perform a step of removing and cleaning the inner grout prior to pouring concrete into the wall member 100.

Next, an underground wall forming step is performed in which the reinforcing bar 133 is inserted into the wall member 100 or the reinforcing bar 133 is inserted in advance, thereby forming the underground wall 200 by placing concrete therein (Fig. 8).

Since the gap between the reinforcing bar 133 and the partition 120 is maintained through the guide member 130, the strength of the underground wall 200 can be permanently secured.

Accordingly, the unified structure of the finishing wall body 400 installed in front of the underground wall 200 and the underground wall 200 can be formed and used as a permanent wall as a whole.

Also, in the underground wall forming step, an outer grouting step may be performed to grout a region between the plurality of perforation holes 10 and the wall member 100.

As the curing is completed through the outer grouting step, the coating effect of the main body 110 can prevent corrosion of the wall member 100 and improve the structural performance, water repellency and waterproofing.

In the forming step of the finishing wall body 400, first, after the ground wall forming step, a crushing step is performed to excavate the front region of the underground wall 200.

After the connecting member 320 is installed on the front surface of the exposed underground wall 200, the reinforcing bar assembly 310 and the connecting member 320 are joined together (FIG. 8).

In addition, a finishing wall forming step of forming the finishing wall body 400 by pouring concrete so that the reinforcing bar assembly 310 is embedded is performed (FIGS. 9 and 10).

As a result, the strength of the permanent wall can be secured with excellent unity through the integrated structure of the underground wall body 200 and the finishing wall body 400 of the present invention, and the required cross section of the wall can be reduced, Can be obtained.

It is preferable that the connecting member 320 is mounted on the front surface of the coupling part 121 where the plurality of partitions 120 formed in the main body 110 are coupled to each other in the longitudinal direction.

It is more structurally preferable that the connecting member 320 uses a stud.

It is effective that the studs are mounted by welding, and the wall member 100 of the present invention is formed of an iron plate structure, so that the mounting of the studs is facilitated.

Since the shear reinforcement effect is directly applied to the engaging portion 121 by attaching the connecting member 320 in a straight line to the engaging portion 121 of the plurality of partitions 120, it is possible to secure the structural stability .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10: perforation hole 100: wall member
100a: adjacent wall member 100b: other adjacent wall member
110: main body 111:
112: wing portion 120: partition wall
121: engaging portion 130: guide member
131: pipe member 132: spacing member
133: reinforcing bar 140:
150: binding portion 160:
170: Coating type index material 200:
310: Reinforcing assembly 320: Connecting member
400: closed wall

Claims (18)

A main body 110 of a rectangular box structure having upper and lower trim portions;
A plurality of partition walls 120 formed in the body 110 to have a lattice structure;
An engaging part 140 formed on one side of the main body 110 so as to be vertically slidably engaged with the binding member 150a of the adjacent wall member 100a;
A coupling unit 150 formed on the other side of the main body 110 so as to be vertically slidably engaged with the engaging member 140b of the other adjacent wall member 100b;
And a wing 112 formed on the other side of the main body 110 and extending along the longitudinal direction of the main body 110 so as to insert the other adjacent wall member 100b, (111)
The end wall of the main body 110 is inserted into the insertion portion 111a formed on the other side of the adjacent wall member 100a by using a wall member formed to have a narrowed width toward one side,
A method of constructing an underground wall (200) in which a reinforcing bar (133) is inserted along a height direction of the wall members (100a) and (100b)
A drilling step of continuously forming a plurality of perforation holes (10);
A grouting step of grouting inside the plurality of through holes (10);
A wall member inserting step of inserting the wall member 100 along the longitudinal direction of the plurality of perforation holes 10;
Forming an underground wall body (200) by placing concrete inside the wall member (100);
A crushing step of crushing a front region of the ground wall body 200;
Installing a connecting member (320) on a front surface of the exposed underground wall (200);
Coupling the reinforcing assembly (310) and the connecting member (320);
Forming a closed wall body (400) by pouring concrete so that the reinforcing bar assembly (310) is embedded;
Wherein the method comprises the steps of: delete delete The method according to claim 1,
Wherein at least one of a front surface and a rear surface of the main body (110) is formed so as to be inclined inward. 5. The method of claim 4,
Wherein the front surface of the main body 110 is inclined inward so that the front surface of the main body 110 and the front surface of the insertion portion 111a of the adjacent wall member 100a are planar. Way. The method according to claim 1,
The locking part 140 and the coupling part 150
Wherein a plurality of protrusions are formed at the front and rear ends of the main body (110). The method according to claim 1,
A flare prevention member 160 installed in the other side of the main body 110 in the width direction to prevent the wing portion 112 from being opened when the other adjacent wall member 100b is inserted;
Further comprising the steps of: 8. The method of claim 7,
The flare preventing member 160
Wherein a plurality of spacers are installed at intervals along the height direction of the main body (110). The method according to claim 1,
A coating type index material (not shown) is applied to at least one of the joint surfaces of the main body 110, the adjacent wall member 100a and the tangential wall member 100b, and the engagement surfaces of the engagement portion 140 and the coupling portion 150 170) is applied to the underground wall. The method according to claim 1,
A guide member 130 installed on the inner surface of the partition 120;
Further,
The guide member (130)
A pipe member 131 formed to insert the reinforcing bar 133;
A spacing member 132 which is engaged with the inner surface of the tubular member 131 and the inner surface of the partition 120 or the inner surface of the tubular member 131 and the inner surface of the partition 120,
Wherein the method comprises the steps of: 11. The method of claim 10,
The guide member (130)
Wherein a plurality of spacers are installed on the inner surface of the partition wall (120) at intervals along a height direction and a width direction. delete delete The method according to claim 1,
The wall member inserting step
The main body 110 is connected to the adjacent wall members 100a and 100b through the coupling part 140 formed on one side of the main body 110 and the coupling part 150 formed on the other side of the main body 110. [ A wall member engaging step of engaging with the adjacent adjacent wall member 100b in the longitudinal direction;
Further comprising the steps of: The method according to claim 1,
Between the wall member inserting step and the ground wall forming step,
Removing and cleaning the inner grout of the wall member;
Further comprising the steps of: delete The method according to claim 1,
The connecting member 320
And a plurality of studs. The method according to claim 1,
The ground wall forming step
An outer grouting step of grouting the area between the plurality of perforation holes (10) and the wall member
Further comprising the steps of:

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