KR101807571B1 - Self-stand type jacking power retaining wall structure and construction method thereof - Google Patents

Self-stand type jacking power retaining wall structure and construction method thereof Download PDF

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Publication number
KR101807571B1
KR101807571B1 KR1020150183860A KR20150183860A KR101807571B1 KR 101807571 B1 KR101807571 B1 KR 101807571B1 KR 1020150183860 A KR1020150183860 A KR 1020150183860A KR 20150183860 A KR20150183860 A KR 20150183860A KR 101807571 B1 KR101807571 B1 KR 101807571B1
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KR
South Korea
Prior art keywords
support
wall
wing
coupled
wire
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KR1020150183860A
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Korean (ko)
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KR20170074508A (en
Inventor
윤용수
나병관
Original Assignee
주식회사 장평건설
윤용수
나병관
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Priority to KR1020150183860A priority Critical patent/KR101807571B1/en
Publication of KR20170074508A publication Critical patent/KR20170074508A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083—Shoring struts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/06—Turnbuckles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00—Temporary installations or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

Abstract

The present invention relates to a self-standing JP retaining structure and a retention method using the same, and more particularly, to a self-supporting JP retaining structure capable of stably supporting a wall at strong earth pressure in a self-supporting retaining structure having two or more rows, and a retention method using the same will be.
The self-supporting type earth retaining structure according to the present invention is a self-supporting type earth retaining structure for installing a plurality of walls in multiple forward and backward directions along the excavation boundary line of the ground to resist earth pressure, A first support beam in the form of an H beam coupled to the wall; A second support beam in the form of an H beam coupled to a second wall disposed in front of the ground, spaced apart from the first wall; And a connection reinforcing member for interconnecting the first support beams and the second support beams spaced apart from each other, wherein the support beams made up of the first support beams and the second support beams have a center bar, And the other end of the connection reinforcing member is detachably coupled to the wing portion of the first supporting beam and the other end of the connecting supporting member is connected to the second supporting beam And the connecting reinforcing member is variable in length so that the first supporting beam and the second supporting beam are pulled together to support the first wall and the second wall.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a self-standing JP retaining structure and a retention method using the self-supporting type JP retaining structure,

The present invention relates to a self-standing JP retaining structure and a retention method using the same, and more particularly, to a self-supporting JP retaining structure capable of stably supporting a wall at strong earth pressure in a self-supporting retaining structure having two or more rows, and a retention method using the same will be.

Generally, in order to secure the stability of the upper structure or to utilize the underground space when constructing various types of buildings, the earthwork excavation earthworks will be constructed by foundation work on the construction site.

In recent years, due to the increase in the depth of underground design, there has been increasing concern about stability such as subsidence. Therefore, it is important to adopt proper retention construction structure through thorough ground survey. have.

In the recent years, the construction of the earth retaining structure in the earthwork excavation earthwork has been steadily developed with a lot of research and development. However, recently, in the enlargement of the building structure and the close construction in the urban area, not only the stability of the retaining structure itself, It is necessary to consider the influence on the structure.

Generally, the widely used thumb pile retention method is a type of retention type retention method, which is adopted by a method in which a pile of a thumb (H-Pile) is pushed at a predetermined interval or inserted after perforation, and a soil- Is inserted between the thumb piles to form the wall, and this includes the thumb pile erosion method, sheet pile method, SCW, and CIP.

This is constituted by a plurality of thumb piles (H beams) vertically installed so as to face each other with their mutual grooves facing each other, and a soil plate inserted and supported in the grooves so as to prevent the rear soil from collapsing forward.

As a current plate, a wood plate or a steel plate of a predetermined standard is used, and it is common to employ a structure in which a wall is formed by laminating the wood plate and a wedge is provided for fixing the laminated plate.

Such a conventional pile cladding method has been pointed out as a problem in the following points.

First, in case of severe earthquake construction, H beam alone can not resist the earth pressure of back soil, so a lot of supporting materials (Strut, Earth Anchor, Raker, etc.) should be used to reinforce it. Not only is it not economical, it makes it difficult to secure a work space, and it is structurally inefficient and there is a fear of subsidence in the surrounding ground.

Second, although the retaining structure of the conventional method can act as a rigid body, it has a relatively large upper head displacement, so that the loosening of the backside ground occurs largely.

In order to solve these problems, in recent years, there has been an increase in the use of the two-row self-standing earth retaining method in order to sufficiently resist the earth pressure.

In the case of the two-row self-standing earth retaining method, the earth pressure is dispersed in the wall provided in one row and the wall arranged in two rows, so that the retaining structure is supported firmly by self-standing.

However, even with these two rows of self-supporting earth retaining structure and method, if a strong earth pressure is applied, the wall or thumb pile (supporting beam) may be deformed or damaged.

Korean Patent Publication No. 10-2012-0115705 Korean Patent Publication No. 10-2009-0091467

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a self supporting type earth retaining structure The present invention provides a self-supporting JP retaining structure and a retaining method using the self-supporting JP retaining structure.

In order to achieve the above object, a self-supporting type earth retaining structure according to the present invention is a self-supporting type earth retaining structure wherein a plurality of walls are installed in multiple forward and backward directions along an excavation boundary line of a ground to resist earth pressure, A first support beam in the form of an H beam coupled to a first wall installed at the rear; A second support beam in the form of an H beam coupled to a second wall disposed in front of the ground, spaced apart from the first wall; And a connection reinforcing member for interconnecting the first support beams and the second support beams spaced apart from each other, wherein the support beams made up of the first support beams and the second support beams have a center bar, And the other end of the connection reinforcing member is detachably coupled to the wing portion of the first supporting beam and the other end of the connecting supporting member is connected to the second supporting beam And the connecting reinforcing member is variable in length so that the first supporting beam and the second supporting beam are pulled together to support the first wall and the second wall.

The connection reinforcing member may include a first coupling portion having one end detachably coupled to the wing portion of the first supporting beam; A second coupling portion having one end detachably coupled to the wing portion of the second support beam; And a connection part connecting the other end of the first coupling part and the other end of the second coupling part, wherein the coupling part has a variable length to adjust the distance between the first coupling part and the second coupling part.

The first engaging portion and the second engaging portion each include a first engaging member having one end abutting the outer surface of the wing portion and the other end connected to the connecting portion; And a second engaging member having a pair of ends, one end of each of which is rotatably hinged to both sides of the first engaging member, and the other end of which is in contact with the inner surface of the wing portion, One end of the first engaging member and the other end of the second engaging member are in close contact with the outer side surface and the inner side surface of the wing portion, respectively, so as to press and hold the wing portion.

The second latching member is formed in a shape of '⊂', and one end and the other end are disposed on mutually opposite sides with respect to the wing portion.

Wherein the first engaging member comprises a pair of pressing members, one end of each of which is in contact with an outer surface of the wing portion and the second engaging member is hinged; And a wire wire connected to the other end of the pair of pressing members. The connecting portion connects the wire wire forming the first connecting portion and the wire wire forming the second connecting portion.

The wire is connected to one end of one of the pair of pressing members and the other end is connected to the other end of the other wire so as to have an open loop shape. The wire is connected between one end and the other end of the wire.

Alternatively, the wire wire is formed in a closed loop shape and connected to the other end of the pair of pressing members, wherein the connecting portion is coupled to the wire wire in the opposite direction of the pressing member.

The connecting portion is formed of a turnbuckle.

A deformation preventing member is coupled to the support beams to connect the pair of wings arranged in parallel and spaced apart from each other. The deformation preventing member prevents the wing portion from being deformed by the pulling force of the connection reinforcing member .

The deformation preventing member is welded and joined to a pair of wing portions arranged in parallel.

Alternatively, the deformation preventing member may comprise a clamp that presses a pair of wing portions arranged in parallel to each other in a mutually adjacent direction, wherein both ends of the clamp are in close contact with the outer surface of the pair of wing portions.

One end and the other end of the connection reinforcing member coupled to the wing portion are prevented from moving along the wing by being caught by the deformation preventing member coupled to the wing portion.

According to another aspect of the present invention, there is provided a self-standing jacking power retention method comprising: a first supporting beam having an H-beam shape coupled to a first wall installed at a rear side of a ground; A second support beam in the form of an H beam coupled to a second wall disposed in front of the ground, spaced apart from the first wall; And a connection reinforcing member interconnecting the first support beams and the second support beams spaced apart from each other, wherein the support beams made up of the first support beams and the second support beams have a center bar, And a pair of wings disposed on both sides of the first supporting beam and spaced apart from each other, the first supporting beam having an H-beam shape and the earth retaining wall being constructed to resist the earth pressure, A first coupling step of detachably coupling one end of the connection reinforcing member to the first coupling step; A second coupling step of detachably coupling the other end of the connection reinforcing member to the wing portion of the second support beam; And a length adjusting step of reducing the length of the connection reinforcing member so that the first supporting beam and the second supporting beam pull each other to support the first wall and the second wall.

Wherein one end of the connection reinforcing member is disposed on the outer side surface and the inner side surface of the wing portion of the first support beam in the first coupling step and the other end of the connection reinforcing member is disposed on the inner side surface of the blade of the second support beam, And one end and the other end of the connection reinforcing member are in close contact with the wing portion as the length of the connection reinforcing member is reduced, thereby pressing and holding the wing portion.

The self-standing JP retaining structure of the present invention as described above and the retaining method using the same have the following effects.

The first supporting beams of the first wall and the second supporting beams of the second wall spaced apart from each other in the multi-row (two columns, three columns, etc.) self supporting type earth retaining structure and method are mutually supported by connecting reinforcing members, Can be prevented from being deformed or broken at a strong earth pressure.

Also, since the connection reinforcing member can be easily and detachably coupled to the first support beam and the second support beam, the connection reinforcing member can be easily installed and disassembled, and can be used repeatedly.

FIG. 1 is a sectional view schematically showing a state in which a self-standing type JP retaining structure according to a first embodiment of the present invention is installed,
2 is a plan view of the self-standing JP retaining structure according to the first embodiment of the present invention,
3 is a side view of the self-standing JP retaining structure according to the first embodiment of the present invention,
4 is a view illustrating a process of installing a connection reinforcing member in a support beam in a self-supporting type JP damping structure according to a first embodiment of the present invention;
FIG. 5 is a view illustrating a coupling state of a connection reinforcing member and a support beam according to a modification of the first embodiment of the present invention,
6 is a plan view of the self-supporting type JP retaining structure according to the second embodiment of the present invention in a state where it is coupled to a supporting beam.

First Embodiment

FIG. 1 is a schematic cross-sectional view of a self-standing JP retaining structure according to a first embodiment of the present invention. FIG. FIG. 3 is a side view of the self-standing JP retaining structure according to the first embodiment of the present invention bonded to a support beam, FIG. 4 is a side view of the self-supporting JP retaining structure according to the first embodiment of the present invention, FIG. 5 is a view illustrating a coupling state of a connection reinforcing member and a support beam according to a modification of the first embodiment of the present invention. FIG.

The self-supporting JP (Jacking Power) earth retaining structure according to the present invention has a plurality of walls arranged along the excavation boundary line of the ground in multiple forward and backward directions to resist the earth pressure. As shown in FIG. 1, 110, a second support beam 210, and a connection reinforcing member 300.

The first support beam 110 is coupled to the first wall 100 installed on the rear side of the ground, and is formed into an H beam shape.

The first support beam 110 may be a thumb pile, which is a vertical support in which a lower portion is inserted into the ground, or a horizontal support band that is laterally coupled to a plurality of soil plates installed on the thumb pile.

The second support beams 210 are coupled to a second wall 200 spaced apart from the first wall 100 and installed in front of the ground, thereby forming an H beam.

The second support beam 210 may be a thumb pile, which is a vertical support in which a lower portion is inserted into the ground, or a horizontal support band that is laterally coupled to a plurality of soil plates installed on the thumb pile.

That is, the first support beam 110 and the second support beam 210 may be a thumb pile inserted in a vertical direction in the ground, or may be a horizontally arranged band.

In this embodiment, the support beams, that is, the first support beams 110 and the second support beams 210 are expressed as thumb piles arranged vertically.

The supporting beam composed of the first supporting beam 110 and the second supporting beam 210 is composed of a center bar 111 and a pair of wings 111 arranged on both sides of the center bar 111, (112) and has an H beam shape.

The connection reinforcing member 300 interconnects the first support beams 110 and the second support beams 210 that are spaced apart from each other.

One end of the connection reinforcing member 300 is detachably coupled to the wing portion 112 of the first supporting beam 110 and the other end is detachably attachable to the wing portion 112 of the second supporting beam 210 Lt; / RTI >

The length of the connection reinforcing member 300 is variable so that the first supporting beam 110 and the second supporting beam 210 are pulled together to connect the first wall 100 and the second wall 200 .

That is, by shortening the length of the connection reinforcing member 300 whose one end and the other end are coupled to the first support beam 110 and the second support beam 210, 2 supporting beams 210 are pulled together through the connection reinforcing member 300 so that the first supporting beams 110 and the second supporting beams 210 can be mutually supported .

The connection reinforcing member 300 includes a first coupling portion 310, a second coupling portion 320, and a connection portion 330.

One end of the first coupling portion 310 is detachably coupled to the wing portion 112 of the first supporting beam 110.

One end of the second coupling portion 320 is detachably coupled to the wing portion 112 of the second support beam 210.

The connection part 330 connects the other end of the first coupling part 310 and the other end of the second coupling part 320.

The shape and structure of the first coupling portion 310 and the second coupling portion 320 are the same, except that the first coupling portion 310 and the second coupling portion 320 are coupled to one end and the other end of the coupling portion 330, respectively.

The length of the connecting part 330 is variable to adjust the distance between the first and second connecting parts 310 and 320.

The first engaging portion 310 and the second engaging portion 320 are formed of a first engaging member 340 and a second engaging member 350, respectively.

One end of the first locking member 340 contacts the outer surface of the wing portion 112 and the other end of the first locking member 340 is connected to the connection portion 330.

More specifically, the first latching member 340 includes a pressing member 341 and a wire wire 342.

One end of each of the pressing members 341 is in contact with the outer surface of the wing portion 112 and is hinged to the second locking member 350.

The wire wire 342 is connected to the other end of the pair of pressing members 341.

In the present embodiment, the wire wire 342 is formed in a closed loop shape and is connected to the other end of the pair of pressing members 341.

That is, the wire wire 342 is hinged to the other end of the pair of pressing members 341 so as to be rotatable, and the other end of the pressing member 341 is disposed inside the wire wire 342 having a closed loop shape .

Accordingly, when the shape of the wire wire 342 is changed, the other end of the pressing member 341 is also moved.

Each of the second engaging members 350 is hinged to one side of the first engaging member 340 so that one end thereof is rotatably hinged to both sides of the first engaging member 340 and the other end of the second engaging member 350 is in contact with the inner side surface of the wing portion 112 .

More specifically, one end of the second engaging member 350 is rotatably hinged to the urging member 341 between one end of the urging member 341 and the other end.

The second latching member 350 is formed in the shape of '⊂' so that one end and the other end of the second latching member 350 are disposed opposite to each other with respect to the wing portion 112.

The connection portion 330 is coupled to the wire wire 342 in a direction opposite to the pressing member 341.

More specifically, the connection unit 330 connects the wire wire 342 forming the first connection unit 310 and the wire wire 342 forming the second connection unit 320.

As the length of the connecting portion 330 is reduced, one end of the first latching member 340 and the other end of the second latching member 350 are closely contacted with the outer side surface and the inner side surface of the wing portion 112, The wing portion 112 is pressed and held.

At this time, one end of the pressing member 341 and the other end of the second engaging member 350 are formed with teeth for increasing frictional force due to contact with the wing portion 112.

In order to make the length of the connection part 330 variable, the connection part 330 is made of a turnbuckle.

Accordingly, when the nut portion is rotated in the connecting portion 330 made of the turnbuckle, the pair of bolt portions move in opposite directions to vary the length of the connecting portion 330.

The deformation preventing member 400 connecting the pair of vanes 112, which are spaced apart from each other and arranged in parallel, is coupled to the support beams.

The deformation preventing member 400 prevents the wing portion 112 from being bent and deformed by the pulling force of the connection reinforcing member 300.

In the present embodiment, the deformation preventing member 400 is composed of a clamp that presses a pair of wing portions 112 arranged in parallel to each other in a direction adjacent to each other.

The clamp has a C-shaped structure so that both ends of the clamp are in close contact with the outer surface of the pair of wing portions 112.

Therefore, even if the connection reinforcing member 300 pulls the wing portion 112, the wing portion 112 can not be pulled out even when the connection reinforcing member 300 is pulled out of the wing portion 112. Therefore, since the clamp pushes the pair of wing portions 112 in mutually adjacent directions, It is possible to minimize the outward bending.

The change preventing member is disposed adjacent to the upper and / or lower portions of the first and second engaging portions 310 and 320 constituting one end and the other end of the connection reinforcing member 300, One end and the other end of the connection reinforcing member 300 coupled to the wing portion 112 are caught by the deformation preventing member 400 coupled to the wing portion 112 so as not to move along the wing portion 112 .

The deformation preventing member 401 may be welded to a pair of wing portions 112 arranged in parallel as shown in FIG. 5 to prevent the wing portion 112 from being bent.

Hereinafter, an installation method of the present invention having the above-described configuration will be described.

The self-supporting JP (Jacking Power) earth retaining method of the present invention includes a first coupling step, a second coupling step, and a length adjusting step.

First, the first supporting beam 110 and the second supporting beam 210 are installed as shown in FIG. 4 (a).

At this time, the first supporting beam 110 is installed in the first wall 100 positioned at the rear, and the second supporting beam 210 is installed in the second wall 200 positioned at the front.

By installing the walls in multiple stages as described above, the earth pressure is dispersed and received and can be firmly supported by itself without a separate earth anchor or the like.

Then, as shown in FIG. 4 (b), the deformation preventing member 400 made of a C-shaped clamp is engaged with the outer surface of the wing portion 112.

The first coupling step is a step of detachably coupling one end of the connection reinforcing member 300 to the wing portion 112 of the first support beam 110.

In the second coupling step, the other end of the connection reinforcing member 300 is detachably coupled to the wing portion 112 of the second support beam 210.

More specifically, as shown in FIG. 4 (c), the first engaging member 340 and the urging member 341 are disposed on both sides of the wing portion 112 in an open state.

Since the pressing member 341 is connected by the wire wire 342, a pair of the first engaging member 340 and the pressing member 341 are separated from each other at both sides of the wing portion 112 As shown in FIG.

Then, as shown in FIG. 4 (d), the first engaging member 340 and the urging member 341 are moved to the wing portion 112 and inserted.

One end of the pressing member 341 is disposed on the outer surface of the wing portion 112 and the other end of the second engaging member 350 is disposed on the inner surface of the wing portion 112.

That is, in the first coupling step, one end of the connection reinforcing member 300 is disposed on the outer side surface and the inner side surface of the wing portion 112 of the first support beam 110, and in the second coupling step, The other end of the reinforcing member 300 is disposed on the outer side surface and the inner side surface of the wing portion 112 of the second support beam 210.

In this state, the length adjustment step is performed.

When the length of the connection reinforcing member 300 is reduced, the first support beams 110 and the second support beams 210 are pulled together to form the first wall 100 and the second wall 200 ).

4 (e), a pair of the wire wires 342 connected to the connection part 330 are connected to the connection part 330 in the direction of the connection part 330. In other words, .

The pressing member 341 is rotated and pressed against the outer surface of the wing portion 112 while the other end of the pressing member 341 is pressed against the inner surface of the wing portion 112, The first and second engaging portions 310 and 320 strongly press the inner and outer surfaces of the wing portion 112.

Accordingly, the first support beams 110 and the second support beams 210 can be mutually supported through the connection reinforcing member 300.

When the length of the connection reinforcing member 300 is reduced, the wing portion 112, to which the first and second coupling portions 310 and 320 are coupled, may be bent by the pulling force. At this time, the wing portion 112 can be prevented from being bent outward by the deformation preventing member 400.

Also, the connection reinforcing member 300 may connect the first support beam 110 and the second support beams 210 in a horizontal direction or an inclined connection.

When the connection reinforcing member 300 connects the first support beam 110 and the second support beam 210 in an inclined manner, the connection reinforcing member 300 is bent in a direction in which one end and the other end of the connection reinforcing member 300 are adjacent to each other And can continue to slide.

However, in the present invention, since the deformation preventing member 400 is disposed on the upper and / or lower portions of one end and / or the other end of the connection reinforcing member 300, It is possible to prevent the deformation preventing member 400 engaged with the wing portion 112 from sliding along the wing portion 112 so that the connection reinforcing member 300 can maintain the inclined installation state.

Second Embodiment

6 is a plan view of the self-standing JP retaining structure according to the second embodiment of the present invention coupled to a support beam.

The second embodiment differs from the first embodiment in that the wire wire 343 is different from that of the first embodiment and will be described mainly.

As shown in FIG. 6, the wire wire 343 has one end coupled to the other end of one of the pair of the pressing members 341, and the other end coupled to the other end of the wire, and is formed into an open loop shape.

The connection portion 330 is coupled between one end of the wire wire 343 and the other end.

The pressing member 341 and the second engaging member 350 coupled to one end of the wire wire 343 and the second engaging member 350 are engaged with the outer surface of the wing portion 112, And is pressed against the inner surface.

Other details are the same as those of the first embodiment, and a detailed description thereof will be omitted.

The self-standing JP retaining structure of the present invention and the retaining method using the same are not limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea of the present invention.

100: first wall, 110: first support beam, 111: center bar, 112: wing,
200: second wall, 210: second support beam,
300: connection reinforcing member, 310: first coupling portion, 320: second coupling portion, 330: connecting portion,
340: first engaging member, 341: pressing member, 342, 343: wire wire, 350: second engaging member,
400, 401: a deformation preventing member,

Claims (14)

delete delete A self-supporting type earth retaining structure having a plurality of walls arranged along the excavation boundary line of the ground in multiple forward and backward directions to resist earth pressure,
A first support beam in the form of an H beam coupled to a first wall installed at the rear of the ground;
A second support beam in the form of an H beam coupled to a second wall disposed in front of the ground, spaced apart from the first wall;
And a connection reinforcing member interconnecting the first support beams and the second support beams mutually spaced apart from each other,
The support beam, which is composed of the first support beam and the second support beam,
A center bar, and a pair of wings disposed on both sides of the center bar and spaced apart from each other and having an H beam shape,
Wherein the connection reinforcing member
A first coupling part detachably coupled to the wing part of the first supporting beam at one end;
A second coupling portion having one end detachably coupled to the wing portion of the second support beam;
And a connection part for interconnecting the other end of the first coupling part and the other end of the second coupling part,
The length of the connection part is variable to support the first wall and the second wall by pulling each other between the first support beam and the second support beam while adjusting the interval between the first and second connection parts,
Wherein the first and second coupling portions each have a first,
A first engaging member having one end abutting the outer surface of the wing portion and the other end connected to the connecting portion;
And a second engaging member having a pair of ends, one end of each of which is rotatably hinged to both sides of the first engaging member, and the other end of the second engaging member being in contact with an inner surface of the wing,
Wherein the one end of the first engaging member and the other end of the second engaging member are in close contact with the outer side surface and the inner side surface of the wing portion to press and grip the wing portion as the length of the connecting portion decreases, Jacking Power). The method of claim 3,
Wherein the second engaging member is formed in a shape of '⊂', and one end and the other end of the second engaging member are disposed opposite to each other with respect to the wing portion. The method of claim 3,
Wherein the first engaging member
A pressing member having a pair of ends, one end of each being in contact with an outer surface of the wing portion, and the second engaging member being hinged;
And a wire wire connected to the other end of the pair of pressing members,
Wherein the connecting portion connects the wire wire forming the first engaging portion and the wire wire forming the second engaging portion. The method of claim 5,
Wherein the wire wire is connected to one end of one of a pair of the pressing members and the other end is connected to the other end of the wire to form an open loop,
And the connecting portion is coupled between one end and the other end of the wire of the steel wire. The method of claim 5,
Wherein the wire wire is formed in a closed loop shape and connected to the other end of the pair of pressing members,
And the connecting portion is coupled to the wire wire in a direction opposite to the pressing member. The method of claim 3,
Wherein the connecting portion comprises a turnbuckle. ≪ RTI ID = 0.0 > 15. < / RTI > The method of claim 3,
The deformation preventing member is coupled to the first support beams or the second support beams to connect the pair of wings arranged in parallel and spaced apart from each other,
Wherein the deformation preventing member prevents the wing portion from being deformed by a pulling force of the connection reinforcing member. The method of claim 9,
Wherein the deformation preventing member is welded and coupled to a pair of wing portions arranged in parallel. The method of claim 9,
Wherein the deformation preventing member comprises a clamp for pressing a pair of wing portions arranged in parallel to each other in a direction adjacent to each other,
And both ends of the clamp are in close contact with outer surfaces of the pair of wing portions. The method of claim 9,
And the one end and the other end of the connection reinforcing member coupled to the wing portion are prevented from moving along the wing by being hooked by the deformation preventing member coupled to the wing portion. . A first support beam in the form of an H beam coupled to a first wall installed at the rear of the ground; A second support beam in the form of an H beam coupled to a second wall disposed in front of the ground, spaced apart from the first wall; And a connection reinforcing member interconnecting the first support beams and the second support beams spaced apart from each other, wherein the support beams made up of the first support beams and the second support beams have a center bar, And a pair of wings disposed in parallel to each other on both sides of the U-shaped beam to form a U-beam, the U-shaped earth retaining structure is constructed to resist the earth pressure,
A first coupling step of detachably coupling one end of the connection reinforcing member to a wing portion of the first support beam;
A second coupling step of detachably coupling the other end of the connection reinforcing member to the wing portion of the second support beam;
And a length adjusting step of reducing the length of the connection reinforcing member so that the first support beams and the second support beams are pulled together to support the first wall and the second wall,
Wherein the connection reinforcing member
A first coupling part detachably coupled to the wing part of the first supporting beam at one end;
A second coupling portion having one end detachably coupled to the wing portion of the second support beam;
And a connection part for interconnecting the other end of the first coupling part and the other end of the second coupling part,
The length of the connection part is variable to support the first wall and the second wall by pulling each other between the first support beam and the second support beam while adjusting the interval between the first and second connection parts,
Wherein the first and second coupling portions each have a first,
A first engaging member having one end abutting the outer surface of the wing portion and the other end connected to the connecting portion;
And a second engaging member having a pair of ends, one end of each of which is rotatably hinged to both sides of the first engaging member, and the other end of the second engaging member being in contact with an inner surface of the wing,
Wherein the one end of the first engaging member and the other end of the second engaging member are in close contact with the outer side surface and the inner side surface of the wing portion to press and grip the wing portion as the length of the connecting portion decreases, Jacking Power). delete
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KR102185246B1 (en) * 2019-05-29 2020-12-01 최진호 Temporary retaining wall system and construction method thereof
KR102240831B1 (en) * 2020-07-03 2021-05-12 주식회사 신웅 Rockfall protection facility with Double Beam and construction method it
KR102293260B1 (en) * 2021-01-25 2021-08-25 신종덕 A pile connection unit for two-row self-supporting earth protection, a pile assembly for two-row self-supporting earth protection, and a two-row self-supporting earth protection method
CN112942364A (en) * 2021-01-29 2021-06-11 江苏三力岩土科技有限公司 Self-balancing large-span deep foundation pit prestressed beam system

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