KR101521556B1 - Underground wall construction method using 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; And a guide member 130 installed on the inner surface of the partition 120. The guide member 130 includes a tubular member 131 to which the reinforcing bar 133 is inserted. And a spacing member (132) coupled to the inner surface of the tubular member (131) and the partition wall (120) or the inner rear surface of the tubular member (131) and the partition wall (120) (Eutectic wall) and the main wall (sidewall) by fusing the structure 100 and the subfloor wall using the same and the construction method thereof, thereby ensuring excellent transverse rigidity during construction, And can be utilized as a main structural wall after the construction. It is possible to reduce the required cross section of the wall, maximize the strength of the wall, and prevent the corrosion of the main body 110 through the outer grouting, Water and water resistance.

Description

TECHNICAL FIELD [0001] The present invention relates to an underground wall construction method using a wall member,

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, 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.

And, after curing of reinforced concrete, earth pressure support by soil wall is most important until the strength is developed, so reinforcements are assembled in the field to reinforce the wall.

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

In addition, since rigidity is good in the longitudinal direction of the reinforcing bars but is separately constructed in the lateral direction, it is difficult to ensure rigidity, and there is a possibility that displacement occurs in the wall during excavation.

As described above, since the reinforcing effect by the reinforcing bars in the transverse direction is low, the strength of the permanent wall is also lowered, and there is a problem that the degree and the water resistance become disadvantageous.

In addition, since the underground wall (wall) and the main wall (wall) need to be double-walled, there is a problem that the cost is increased and the construction period is lengthened.

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 provide a structure in which the structure of an underground wall (a retaining wall) and a main wall Wall structure that can be used as a main structural wall after construction and can reduce the required cross section of the wall, maximize the strength of the wall, increase the water and water resistance, and provide the underground wall and the construction method thereof The purpose of that is to do.

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; And a guide member 130 installed on an inner surface of the partition 120. The guide member 130 includes a tubular member 131 through which the reinforcing bar 133 is inserted. And a spacing member 132 coupled to the inner surface of the tubular member 131 and the partition 120 or the inner rear surface of the tubular member 131 and the inner wall of the partition 120, As shown in Fig.

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. The reinforcing steel bar 133 is inserted into the plurality of pipe members 131 of the guide member 130 along the height direction, The concrete structure of the underground wall 200 is shown in FIG.

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.

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 may be mounted on the front surface of the coupling part 121 in which the plurality of partitions 120 formed in the main body 110 are coupled to each other in the longitudinal direction.

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 fuses the structure of an underground wall (wall) and a main wall (anchor wall), thereby ensuring excellent transverse stiffness during construction, minimizing back displacement as a soil facility, and being used as a main structural wall after construction This paper proposes a wall member, which can reduce the required cross section of the wall, maximize the strength of the wall, increase the water repellency and waterproofing, and the underground wall using it and its construction method.

1 to 4 illustrate an embodiment of a wall member according to the present invention and an underground wall using the wall member,
1 is a perspective view of one embodiment of a wall member;
2 is a plan view of one embodiment of a guide member;
3 is a plan view of installation of an underground wall and a closed wall.
Fig. 4 is a perspective view of Fig. 3; Fig.
5 to 10 illustrate an embodiment of a method of constructing an underground wall according to the present invention,
5 is a plan view showing a drilling step;
6 is a plan view showing a wall member inserting step.
7 is a plan view showing an underground wall forming step;
8 is a plan view showing a step of installing a reinforcing bar assembly and a connecting member.
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; And a guide member 130 installed on the inner surface of the partition 120. The guide member 130 includes a tubular member 131 to which the reinforcing bar 133 is inserted. And a spacing member 132 coupled to the inner surface of the tubular member 131 and the partition wall 120 or to the inner rear surface of the tubular member 131 and the partition wall 120 to maintain mutual spacing 1).

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 partition 120 and the reinforcing bar 133 is permanently maintained within the wall member 100 to thereby reliably prevent such a problem (FIG. 2).

Therefore, by permanently securing the gap between the partition 120 and the reinforcing bar 133 through the spacing member 132, it is possible to maximize the strength of the wall by increasing the reinforcing effect by the reinforcing bar 133, There is obtained an effect that it is possible to prevent the occurrence of the problem.

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

Further, since the wall member 100 of the present invention is formed of a steel plate structure, it is characterized in that it is stably inserted into the ground and is excellent in durability and structural stability.

Since the wall member 100 is formed of an iron plate structure and excellent strength and structural stability can be ensured by providing the guide member 130, the wall member 100 has the following advantages.

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 (Figs. 3 and 4).

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 a guide member 130 is installed or a structure in which a guide member 130 and a reinforcing bar 133 are installed up to the inside of the wall member 100, All the processes are completed by pouring.

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

The reinforced reinforcing bars 133 provided on the wall member 100 can be reinforced by the reinforced reinforcing bars 133 and the reinforced reinforced concrete reinforced concrete reinforced concrete members 130. [ 400), 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 concrete is inserted into the wall member 100 in a state where the reinforcing bars 133 are inserted into the plurality of pipe members 131 along the height direction or the reinforcing bars 133 are inserted in advance An underground wall 200 is formed (FIG. 3).

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. 5).

A wall member inserting step is performed in which a 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. 6).

The wall member 100 is fabricated in a state where the guide member 130 and the reinforcing bar 133 described above are installed, and the wall member 100 is inserted in the site, which is advantageous in that the construction is very easy.

Here, it is preferable that the inner grout is removed and cleaned before the concrete is installed in the wall member 100.

Next, an underground wall forming step is performed in which concrete is installed inside the wall member 100 in which the reinforcing bar 133 is inserted into the pipe member 131 to form the underground wall member 200 (FIG. 7).

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.

Therefore, it can be used as a permanent wall as a whole by forming an integrated structure with the finishing wall body 400 installed in front of the underground wall body 200.

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.

The connecting member 320 may be mounted on the front surface of the coupling part 121 in which the plurality of partitions 120 formed in the main body 110 are longitudinally coupled to each other.

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.

By attaching the connecting member 320 in a straight line to the connecting portion 121 of the plurality of partitions 120, the shear reinforcement effect is directly applied to the connecting portion 121, have.

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
110: main body 120: partition wall
121: engaging portion 130: guide member
131: pipe member 132: spacing member
133: rebar 200: underground wall
320: connecting member 310: reinforcing assembly
400: closed wall

Claims (9)

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;
And a guide member 130 installed on the inner surface of the partition 120,
The guide member (130)
A pipe member 131 formed to insert the reinforcing bar 133;
And a spacing member 132 coupled to the inner surface of the tubular member 131 and the partition 120 or the inner rear surface of the tubular member 131 and the inner wall of the partition 120, (100), < / RTI >
A reinforcing steel bar 133 is inserted into the plurality of pipe members 131 of the guide member 130 along the height direction and a concrete reinforcing bar 133 is inserted into the wall member 100, As a construction method,
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;
Removing and cleaning the inner grout of the wall member (100);
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: The method according to claim 1,
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 delete delete The method according to claim 1,
The connecting member 320
Wherein a plurality of partitions (120) formed in the main body (110) are mounted on a front surface of a coupling part (121) which is mutually coupled in the longitudinal direction. 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 a region between the plurality of perforation holes (10) and the wall member (100);
Further comprising the steps of:

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