KR101403350B1 - Soil guard structure and construction method thereof - Google Patents

Abstract

The present invention relates to a soil retaining structure and a construction method thereof. According to the present invention, the soil retaining structure, which is provided to prevent the corruption of an excavated surface and the infiltration of water after an excavation work for building an underground structure, includes H-shaped steel piles each having fitting grooves formed between both side flange portions thereof and fixed to the underground in such a manner as to be spaced apart from each other to allow the fitting grooves to face each other; a soil retaining wall fitted to the fitting grooves on both sides thereof in such a manner as to block the space between the steel piles and having lower fixing portions formed on the lower portion of one surface thereof in such a manner as to be brought into close contact with the inner surfaces of the flange portions; and fixing blocks detachably coupled to the top portions of the flange portions in such a manner as to be brought into close contact with one surface of the soil retaining wall after the soil retaining wall is coupled to the steel piles so as to fix the top portion of the soil retaining wall.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a soil retaining structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining structure and a method of constructing the same, and more particularly, to a retaining structure and a method of constructing the same that prevent collapse of an uneven surface and infiltration of influent water after construction of an underground structure.

Generally, to construct an underground structure such as a basement of a building or a subway, a soil is constructed by constructing a structure to prevent the collapse of the oyster surface due to the earth pressure and infiltration of inflow water .

In the existing soil-retaining works, H-shaped steels are arranged at regular intervals on the ground where the earthworks are performed, and a soil plate made of wood is inserted between the H-shaped steels to form earth retaining structures. To stabilize the ground.

This method is a method of installing earth retaining structure made of H-shaped steel and wood plate in a state where the earthquake excavation is progressing to some extent and filling the soil behind the retaining structure where the space is formed.

However, in the above-mentioned method, since the ground behind the retaining structure is not stabilized, the ground settlement and the ground collapse are likely to occur, and a barrier wall is formed by using a plurality of soil plates made of wood, thereby preventing infiltration of inflow water. There is a problem that the order function is very low and the stiffness of the soil plate is deteriorated. And the soil plate made of wood after the construction is hard to be recycled, so that environmental pollution occurs due to burial in the ground.

In order to solve the above problems, there has been proposed a method of installing an earth retaining structure by inserting a soil plate made of wood between H-shaped steel materials. However, since this structure inserts the earth plate double, the rigidity is reinforced to some extent, And workload increased, and the order function still failed to meet expectations.

In order to solve the above problems, a soil retaining structure using a soil plate made of high strength concrete instead of a soil plate made of wood has been proposed. However, since the intervals between the H-shaped steel plates are different from each other, Is low. In addition, there is a problem that workability is lowered due to the ground stabilization work in the back of the retaining structure after installing the retention structure during the construction of the trench construction, and the construction cost is increased due to a longer construction period.

In recent years, Korean Patent No. 10-0846229 (method of installing earth retaining structure) has been disclosed in order to supplement this.

In the method of installing the retaining structure, the guide rail 20 is coupled to the web 11 of the H-shaped steel material 10 to form the space portion 21, and then the both sides of the steel plate 30 are joined to the space portion 21 So that it is possible to obtain a satisfactory effect in rigidity and order functions while preventing shaking before and after the steel plate 30 in the space 21.

However, in such a conventional method of installing the retaining structure, in order to install the steel plate 30 between the H-shaped steel plates 10, the guide rails 20 forming the space portion 21 must be joined to the web 11 A considerable amount of time is required for the operation of the H-shaped steel material 10 due to the structural change, and the cost is increased.

In addition, when the steel plate 30 is installed on the H-shaped steel material 10, a crane is used. It is difficult to insert the steel plate 30 into the space portions 21 having a narrow width when using such a crane, And the steel plate 30, there is a problem that the work efficiency is lowered and the installation and dismantling work is inconvenient.

Therefore, it is required to research and develop a retaining structure and its construction method which can securely fix and secure the retaining wall without changing the structure of the existing steel pile and improve the convenience of installation and disassembly work.

Korean Registered Patent No. 10-1251551 (Registration date: April 01, 2013)

The object of the present invention is to provide a retaining structure capable of stably fixing a retaining wall while preventing a structural change of a steel material file and improving the convenience of installation and dismounting work, and a construction method thereof.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the particular embodiments that are described. It will be apparent to those skilled in the art, There will be.

According to the present invention, there is provided an earth retaining structure for preventing the collapse of the oyster surface and the infiltration of inflow water after the construction of the underground structure for constructing the underground structure, wherein a fitting groove is formed between the flange portions provided on both sides, An H-shaped steel file which is fixed to the ground at mutually spaced intervals so that the grooves face each other; And a lower fixing portion which is fitted to the fitting groove and fitted to the inside of the flange portion at a lower portion of one side to block between the steel material piles and is fitted to the steel material pile, And a fixing block detachably attached to an upper end of the flange portion so as to be in close contact with one surface of the flange portion to fix the upper portion of the earth retaining wall.

Wherein the fixing block includes a fixing block body having a fitting portion corresponding to the flange portion so as to be detachably fitted to the flange portion forming the fitting groove; And a fixing part provided on the fixed block body and fixed to one surface of the earth retaining wall body to fix the upper part of the earth retaining wall body when the fixed block body is coupled to the flange part.

The fixing unit includes: a fixing unit body integrally formed with the fixed block body; A fixing protrusion coupled to the inside of the fixture main body and movable to be in close contact with one surface of the securing wall; And an elastic member coupled between the fixture body and the fixing protrusion and providing an elastic force such that the fixing protrusion is brought into close contact with one surface of the securing wall body.

Wherein the fixing protrusion is formed with a guide slot having a predetermined length so as to be movable with respect to the fixed unit when the fixed protrusion is in close contact with one surface of the securing wall, And a guide shaft coupled to the guide shaft.

Two fixing blocks are integrally formed by forming auxiliary fitting portions corresponding to the partition walls formed in the steel material file so as to simultaneously fix the earth retaining wall bodies fitted into fitting grooves formed on both sides of the steel material pile .

The lower fixing part is integrally formed with the earth retaining wall.

Wherein the lower fixing part is formed separately from the securing wall and is detachably coupled to the securing wall, wherein the securing wall is formed with a coupling part having a coupling groove of a tee (T) Wherein the coupling protrusion is protruded on one side and has a shape corresponding to the coupling groove.

According to another aspect of the present invention, there is provided a method of constructing a retaining structure, comprising: securing the steel piles at a predetermined interval so that fitting grooves formed on both sides of a H-shaped steel material file face each other; The lower fixing part is fixed to the inner surface of the fitting groove so that the lower end of the fixing wall is coupled to the fitting groove so that the lower motion of the earth retaining wall is fixed in the fitting groove, And closing the gap between the steel filaments; And fixing the upper movement of the earth retaining wall body by engaging a fixing block with an upper end of a flange portion forming the fitting groove after the earth retaining wall body is coupled between the steel material piles Lt; / RTI >

According to the present invention, it is possible to provide a retaining structure capable of retaining the retaining wall in the fitting groove of the steel pile without changing the structure of the steel pile during the retaining work, so that the retaining wall can be stably and easily fixed, The convenience can be improved.

1 is an exploded perspective view of a retaining structure according to an embodiment of the present invention.
FIG. 2 is a plan view showing the coupled state of the earth retaining structure shown in FIG. 1. FIG.
3 is a cross-sectional view of the securing structure shown in FIG.
4 is a cross-sectional view showing a securing block of the securing structure shown in FIG.
FIG. 5 is a cross-sectional view illustrating an installation state of a retaining structure according to an embodiment of the present invention.
6 is an exploded perspective view of a retaining structure according to another embodiment of the present invention.
7 is a perspective view illustrating a securing block of a retaining structure according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions will not be described in order to simplify the gist of the present invention.

FIG. 1 is an exploded perspective view of an earth retaining structure according to an embodiment of the present invention, FIG. 2 is a plan view of an earth retaining structure shown in FIG. 1, FIG. 3 is a sectional view of the earth retaining structure shown in FIG. FIG. 4 is a cross-sectional view showing a securing block of the securing structure shown in FIG. 3, FIG. 5 is a sectional view showing the construction of the securing structure according to an embodiment of the present invention, FIG. 6 is a cross- 7 is a perspective view illustrating a securing block of a retaining structure according to another exemplary embodiment of the present invention.

1 to 3, an earth retaining structure according to an embodiment of the present invention includes an H-shaped steel file 100 fixed to the ground and an earth retaining wall 100, And a fixing block 120 coupled to the steel material file 100 to fix the earth retaining wall body 110 coupled between the steel material pile 110 and the steel material pile 100.

Here, the retaining structure is a structure that is installed to prevent the collapse of the oyster surface and infiltration of the inflow water after the construction work for constructing the underground structure.

The H-shaped steel material pile 100 forms a pillar structure of the retaining structure, has flanges 102 on both sides thereof, and a fitting groove 104 is formed between the flange portions 102.

That is, the steel material pile 100 is formed to have a H-shaped cross section having a certain length to form a pillar frame of the retaining structure.

Here, the flange portions 102 are provided on both sides of the steel material pile 100 so as to be integrally projected to correspond to each other in the longitudinal direction.

The fitting groove 104 is formed between the flange portions 102 and is provided to provide a space through which the earth retaining wall body 110 can be fitted.

The retaining wall 110 is coupled between the steel piles 100 and has a lower fixing part 112 at a lower part of the one side.

The earth retaining wall 110 is formed of a steel plate having a predetermined thickness and serves to block the steel piles 100.

The lower fixing part 112 is provided under one side of the earth retaining wall 110. That is, the lower fixing part 112 is integrally coupled to the lower surface of the one side of the earth retaining wall 100 so as to be disposed at a position corresponding to the fitting groove 104 formed in the steel material pile 100.

The lower fixing part 112 is in close contact with the inner wall of the flange part 102 when both sides of the earth retaining wall 110 are fitted into the fitting groove 104 of the steel pile 100, The lower portion can be prevented from moving forward and backward while being fitted to the fitting groove 104. [

4, the fixed block 120 is fixed to the upper portion of the stationary block 110 to prevent movement of the upper portion of the stationary wall 110 in the state where the securing block 110 is interposed between the steel piles 100, And a fixing portion 123 provided on the fixing block body 121 to fix the upper portion of the earth retaining wall body 110. The fixed block body 121 is fixed to the fixed block body 121 by a bolt.

The fixed block main body 121 is detachably coupled to the steel material pile 100 to fix the upper portion of the earth retaining wall body 110 formed to block the gap between the steel piles 100 forming the main frame of the fixed block 120 to be. For this purpose, the fixing block body 121 is formed with a fitting portion 122 corresponding to the flange portion 102 so as to be detachably fitted to the flange portion 102 forming the fitting groove 104 on the lower face. At this time, the fitting portion 122 is formed in a groove shape which is recessed from the lower surface of the fixed block body 121 so as to be inserted into the flange portion 102. That is, the fitting portion 122 provides a space in which the flange portion 102 can be fitted to the steel block 100 when the fixed block body 121 is engaged.

The fixed block body 121 can be detachably coupled to the upper end of the steel material 100 through the fitting portion 122.

The fixing part 123 is provided on one side of the fixed block body 121 and includes a fixing part 124 and fixing protrusions 127 fixed to the fixing part 124, And an elastic member 129 provided so as to provide a resilient force to fix the earth retaining wall body 110 to the fixing protrusion 127.

The fixing unit main body 124 is configured to integrally protrude from one side of the fixed block main body 121, forming the main frame of the fixing portion 123.

A receiving groove 125 is formed in the fixed body 124 to be opened in the direction of the earth retaining wall 110. A protrusion 125A for fixing one side of the elastic member 129 is formed in the receiving groove 125, .

That is, the receiving groove 125 provides a space in which the fixing protrusion 127 can be received, and the protruding fixing portion 125A is engaged with one side of the elastic member 129 in the receiving groove 125 Lt; / RTI >

The fixing protrusion 127 is configured to be received in the receiving recess 125 provided in the fixed body 124. [ The fixing protrusion 127 is moved by the elastic force of the elastic member 129 in the state of being accommodated in the receiving groove 125 and is brought into close contact with the one side of the uprising wall body 110, Can be fixed.

That is, the fixing protrusion 127 is moved with respect to the fixed body 124 by the elastic force of the elastic member 129 and is brought into close contact with one surface of the retaining wall body 110, so that the thickness of the retaining wall body 110 is not uniform, The retaining wall body 110 installed between the steel material piles 100 can be stably and easily fixed.

The end of the securing protrusion 127 which is in close contact with the surface of the securing wall body 110 is formed in a curved shape so that when the securing block 120 is coupled to the steel material pile 100 to fix the upper part of the securing wall body 110, The surface friction generated between the fixing protrusions 127 and the earth retaining wall body 110 can be minimized. This is because the tip of the fixing protrusion 127 is formed as a curved surface to make point contact with one surface of the earth retaining wall body 110, thereby minimizing surface friction.

The fixing protrusion 127 is provided with a groove-like fixing portion 127A at a position corresponding to the protrusion-like fixing portion 125A provided in the receiving groove 125. [ The groove-like fixing portion 127A is a structure which provides a space where the other side of the elastic member 129 can be coupled and fixed.

Here, the fixing protrusion 127 is formed with a guide slot 128 having a predetermined length so as to be movable with respect to the fixing station body 124 in the receiving recess 125, and the guide slot 128 is formed in the fixing station body 124 A guide shaft 126 is provided.

That is, the guide slot 128 is configured to guide the fixing protrusion 127 to be stably moved in the direction of the securing wall member 110, and the guide shaft 126 is configured to pass through the guide slot 128 124 so as to limit the movement length of the fixing protrusion 127. That is, the fixing protrusion 127 is prevented from being separated from the receiving recess 125 by the guide shaft 126 coupled to the guide slot 128.

The elastic member 129 is configured to be received in the receiving groove 125 of the fixed body 124 so as to provide an elastic force to the fixing protrusion 127. [ The elastic member 129 is fixed at both ends to a protruding fixing portion 125A provided in the receiving groove 125 of the fixing portion main body 124 and a groove fixing portion 127A provided at the fixing protrusion 127, The protrusions 127 provide a certain elastic force that can be strongly adhered to one surface of the earth retaining wall body 110. At this time, the elastic member 129 may be provided as a coil spring.

The fixed block 120 is coupled to the upper end of the steel pile 100 so as to be in close contact with one surface of the piled wall 110 while the piled wall 110 is installed between the steel piles 100, The upper portion of the fitting groove 104 can be stably and easily fixed so as not to move in the forward and backward directions of the fitting groove 104.

Hereinafter, a method of constructing the earth retaining structure according to an embodiment of the present invention will be described with reference to FIG.

First, in order to construct the earth retaining work to prevent the collapse of the oyster surface and the infiltration of the inflow water after the earthquake-proof construction for constructing the underground structure, the fitting grooves 104 formed on both sides of the steel pile 100 are formed The steel piles 100 are spaced apart from each other by a predetermined distance and fixed to the ground.

Next, when the steel material file 100 is fixed to the ground, both sides of the earth retaining wall body 110 are fitted into the fitting grooves 104 formed in the steel material file using a crane so as to block the steel material files 100 between them. At this time, the width of the fitting groove 104 of the steel material pile 100 provides a greater width than the thickness of the retaining wall body 110, so that the retaining wall body 110 can be easily fitted into the fitting groove 104. The lower fixing part 112 provided on the earth retaining wall body 110 after the both sides of the earth retaining wall body 110 are fitted into the fitting groove 104 of the steel material pile 100 is brought into close contact with the inner wall of the flange part 102, The lower portion of the wall body 110 can be prevented from moving forward and backward while being fitted into the fitting groove 104.

Next, the fixing block 120 is installed so that the fixing protrusions 127 provided on the fixing portion 123 are brought into close contact with the upper portion of the uprising wall body 110, By fitting the flange portion 102 of the steel material pile 100, the installation work of the earth retaining structure according to the present embodiment is completed. At this time, the fixing block 120 moves forward and backward in the upper portion of the earth retaining wall body 110 in the fitting groove 104 of the steel pile 100 by the fixing protrusion 127 which is in close contact with the one surface of the securing wall body 110 So that the fixing operation of the upper portion of the earth retaining wall body 110 can be facilitated without changing the structure of the steel material pile 100. [

As described above, in the retaining structure according to the present embodiment, the guide rail 20 is coupled to the web 11 of the H-shaped steel material 10 during the earth retaining operation to form the space portion 21, The retaining grooves 104 of the steel pile 100 are fitted into the retaining grooves 104 of the steel pile 100 without omitting the structure changing operation of the steel pile 100, Can be stably fixed by the lower support portion 112 and the fixing block 120 so as to be prevented from moving forward and backward and the convenience of installation and disassembly can be improved

6, the retaining structure according to another embodiment of the present invention includes an H-shaped steel file 130 fixed to the ground, and an earth retaining wall 130 disposed between the steel files 130 A lower fixing part 150 detachably coupled to the retaining wall 140 and a fixing part 140 fixed to the steel material pile 130 to fix the retaining wall body 140 coupled between the steel pile 130. [ Block < / RTI >

Here, the steel file 130 and the fixed block 160 have the same configuration and function as those of the steel material file 100 and the fixed block 120 described in the embodiment of the present invention, and the description thereof will be omitted.

The earth retaining wall 140 is coupled between the steel piles 130 and has a coupling portion 142 at a lower portion of the wall. The retaining wall 140 is formed of a steel plate having a predetermined thickness and serves to block the steel piles 130, as in the case of the earth retaining wall 100 shown in the embodiment of the present invention.

The coupling portion 142 is formed to have a predetermined length so that the lower fixing portion 150 can be detachably coupled to the securing wall 140. To this end, the coupling portion 142 is formed to have a coupling groove 144 shaped like a tee (T). The coupling groove 144 is configured to be coupled to the coupling protrusion 152 provided in the lower fixing part 150, which will be described later. At this time, the engaging portion 142 is provided on the earth retaining wall body 140 so as to be disposed at a position corresponding to the fitting groove 134 formed between the flange portions 132 of the steel material pile 130.

The lower fixing part 150 is formed separately from the earth retaining wall body 140 and is provided with a coupling protrusion 152 at one side thereof so as to be detachably coupled to the earth retaining wall body 140. In other words, unlike the lower fixing part 112 integrally formed with the retaining wall 110 shown in the above-described embodiment of the present invention, the lower fixing part 150 of the present embodiment is separated from the retaining wall 140 And is detachably coupled to the earth retaining main body 140 via a coupling protrusion 152 described later.

In this case, the lower fixing part 150 may be disposed in the fitting groove 134 formed in the steel material 130 in the same manner as the lower fixing part 112 shown in the embodiment of the present invention, It plays a role to prevent movement.

The engaging projections 152 are configured to be detachably coupled to the engaging portions 142 of the retaining body 140. [ The coupling protrusions 152 are formed in a shape corresponding to the coupling grooves 144 provided in the coupling portions 142 of the earth retaining wall body 140. [ That is, the coupling protrusions 152 are configured to be detachably coupled to the coupling recesses 144 provided in the coupling portions 142 of the lower fixing portion 150.

As described above, the retention structure according to another embodiment of the present invention provides a structure in which the lower securing part 150 is detachably coupled to the securing wall 140 so that when the retaining wall 140 is stored, And other operations and effects are the same as those of the embodiment of the present invention.

In other words, the lower fixing part 112 shown in the embodiment of the present invention is integrally formed with the retaining wall body 110 to provide a factor of lowering the lamination property due to the storage of the wall body 110, The lower fixing part 150 shown in the embodiment provides a structure that is detachably coupled to the retaining wall 140 to increase the stacking property according to the storage of the retaining wall 140. [

7, the retaining structure according to another embodiment of the present invention may include a retaining block 120A, which is fitted into fitting grooves 104 formed on both sides of the steel pile 100, Except that the wall 110 is fixed at the same time.

That is, in order to simultaneously fix the earth retaining wall body 110 fitted into the fitting grooves 104 formed on both sides of the steel material pile 100, the two fixing blocks 120A are disposed between the fixing blocks 120A The auxiliary fitting portion 122A corresponding to the partition wall 106 formed in the steel material 100 is formed and integrated. The auxiliary fitting portion 122A provides a space in which the partition wall 106 of the steel material 100 can be inserted.

The fixed block 120A is coupled to the upper portion of the steel material file 100 by the auxiliary fitting portion 122A so that the retaining wall body 110 to be fitted into the fitting groove 104 formed on both sides of the steel material file 100 So that it can be stably fixed.

As described above, the retaining structure according to another embodiment of the present invention is coupled to the upper portion of the steel material pile 100 in a state in which the two fixing blocks 120A are integrally formed, It is possible to securely fix the earth retaining wall body 110 fitted into the groove 104 at the same time, and the remaining actions and effects are the same as those of the above-described one embodiment and other embodiments of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit and viewpoint of the present invention, and modified embodiments should be included in the claims of the present invention.

100: Steel file 104: Fitting groove
110: earth retaining wall member 112: lower fixing member
120: fixed block 121: fixed block body
123: Fixing portion 124: Fixing portion body
125: receiving groove 126: guide shaft
127: fixing protrusion 128: guide slot
129: elastic member

Claims (8)

It is a retaining structure to prevent collapse of oyster surface and infiltration of influent water after construction to construct underground structure.
An H-shaped steel material file having a fitting groove formed between flange portions provided on both sides thereof and spaced apart from each other such that the fitting grooves face each other and fixed to the ground;
And a lower fixing part which is fitted on both sides of the fitting groove to block the gap between the steel material piles and is in close contact with the inside of the flange part at the bottom of one side,
And a fixing block detachably coupled to an upper end portion of the flange portion so as to be closely attached to one surface of the earth retaining wall after the retaining wall is coupled to the steel pile and to fix the upper portion of the earth retaining wall,
Wherein the fixing block includes a fitting block portion having a fitting portion corresponding to the flange portion so as to be detachably fitted to the flange portion forming the fitting groove; And
And a fixing part provided on the fixed block body and fixed to one surface of the earth retaining wall body when the fixed block body is coupled to the flange part to fix the upper part of the earth retaining wall body,
The fixing unit includes:
A fixing unit body integrally formed on the fixed block body;
A fixing protrusion coupled to the inside of the fixture main body and movable to be in close contact with one surface of the securing wall; And
And an elastic member coupled between the fixing part and the fixing protrusion and providing an elastic force such that the fixing protrusion is brought into close contact with one surface of the securing wall. delete delete The method according to claim 1,
In the fixing projection,
A guide slot having a predetermined length is formed so as to be movable with respect to the fixed unit when it is in close contact with one surface of the securing wall,
The fixing unit includes:
And a guiding shaft coupled to the guide slot to limit a movement length of the fixing protrusion. 5. The method of claim 4,
Two fixing blocks are integrally formed by forming auxiliary fitting portions corresponding to the partition walls formed in the steel material file so as to simultaneously fix the earth retaining wall bodies fitted into fitting grooves formed on both sides of the steel material pile Wherein the retaining structure comprises: The method according to claim 1,
Wherein the lower fixing part is formed integrally with the earth retaining wall. The method according to claim 1,
Wherein the lower fixing part is formed separately from the earth retaining wall and is detachably coupled to the earth retaining wall,
The earth retaining wall may include:
(T) -shaped engagement groove in which an upper portion is opened,
The lower fixing part
And an engaging protrusion formed on one side and having a shape corresponding to the engaging groove. 8. A construction method using the earth retaining structure according to any one of claims 1 to 7,
Fixing the steel piles to each other by separating the steel piles from each other by a predetermined distance so that the fitting grooves formed on both sides of the H-shaped steel piles face each other;
The lower fixing part is fixed to the inner surface of the fitting groove so that the lower end of the fixing wall is coupled to the fitting groove so that the lower motion of the earth retaining wall is fixed in the fitting groove, And closing the gap between the steel filaments;
And fixing the upper movement of the earth retaining wall by engaging a fixing block with the upper end of the flange forming the fitting groove after the retaining wall is coupled between the steel piles.

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