KR101866792B1

KR101866792B1 - Temporary retaining wall structure

Info

Publication number: KR101866792B1
Application number: KR1020180004828A
Authority: KR
Inventors: 전상훈
Original assignee: 전상훈
Priority date: 2018-01-15
Filing date: 2018-01-15
Publication date: 2018-06-12

Abstract

The present invention relates to a retaining structure to be installed in a complex excavation area in which a curved point is formed. The retaining structure comprises: a plurality of H-piles buried in the ground to be spaced apart from each other at predetermined intervals along a boundary line of the excavation area, and having a web formed at the center and a pair of flanges vertically formed at both sides of the web; a plurality of earth plates inserted between the plurality of H-piles and arranged on top of each other; a plurality of support brackets spaced apart from the flanges of the H-piles buried at the curved point and mounted in a longitudinal direction of the web to be spaced apart from each other at a predetermined interval; and a connection unit having a plurality of connection pipes and a connection member, wherein the connection pipes are inserted and arranged between the flanges of the H-piles buried at the curved point and the support brackets to be supported by the flanges and the support brackets, the earth plates are inserted into and combined with the connection pipes in a sliding manner, and the connection member connects ends of neighboring connection pipes so that insertion holes of the plurality of connection pipes can be aligned collinearly.

Description

{TEMPORARY RETAINING WALL STRUCTURE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an earth retaining structure, and more particularly, to a retaining structure provided in a complex type terraced area where a bending point is formed.

In general, as part of the foundation work in performing buildings and other works, the earthworks work and excavation work are alternately performed.

Known piling methods include H pile wall method, Sheet pile method, SMP method, CIP method, SCW method and so on.

H pile wall construction method is a general construction method which is a method of forming a wall by inserting a H file at regular intervals and inserting a plate into a H file while advancing a tile and a sheet pile method is a method of forming a wedge shaped steel file The SMP method is a non-vibration, noiseless, self-sustaining system that can be used in port structures and earth structures, and is reusable and environmentally friendly. It is possible to construct without any ground conditions by hydraulic indentation method which presses file or H file. It is possible to construct more precisely than general construction method and it is a construction method with high speed. CIP method is less in noise and dust generation during construction The equipment is small and easy to handle, but the gravel and rock layers are difficult to perforate. And a difficult management method, SCW method can solve the problem and this problem of chasubyeok installation according to the excavation during construction toryubyeok in soft ground, the method being urban underground earth retaining Ltd. When used primarily.

In the conventional conventional soil-retaining work by H-file wall construction method, H files are installed on the ground at regular intervals along the boundary of the ter- minator area, and a retaining structure is installed by sandwiching a timber between the H files. It is based on the method of filling the soil.

On the other hand, in the case where the earthquake structure is a complex shape of a polygonal or irregular structure that is not a rectangle or a square, a bending point is provided so that an angle is formed between adjacent soil plates.

More specifically, in the case where the boundary region S has a complex shape as shown in FIG. 1, various types of bending points a to d are formed. At this time, as one of the methods of installing the soil plate at the bending points (a to d), there is a method of installing the soil plate 20 after installing only one H file 10 as shown in FIG. However, if the soil plate 20 is installed through one H file 10 at the bending points a to d as described above, both ends of the soil plate 20, as in point A in Fig. 2, The space S1 is formed between the flange 12 and the current plate 20 so that the flange 12 and the end plate of the current plate are in line contact without surface contact. That is, the soil plate 20 provided on the H-file 10 in the same horizontal line in the left and right direction is in surface contact with the inside of the flange 12 to support the earth pressure, The dust plate 20 installed in the H file 10 is provided in a line contact with the flange 12 so that a concentrated load is applied to a point where the flange 12 and the dust plate 20 make a line contact when a load is generated according to the earth pressure Compared with a state in which both ends of the current plate 20 are in surface contact with the flange 12, the current plate 20 is damaged.

As another method of installing the soil board at the bending points a to d, the interval of the H files 10 installed at the bending points a to d is set to be longer than the interval of the H files 10 installed in a straight line And the both end portions of the soil plate 20 are arranged so as to extend over the flange 12, as shown in Fig. This method is advantageous in that no space is formed between the flange 12 of the H file 10 and the opposite end of the current plate 20, as shown in Fig. However, since the contact area between the flange 12 and the current plate 20 is small, there is a problem that the current plate 20 is detached from the H file 10 as shown in the photograph of FIG. 4 when a load is generated by the earth pressure .

Recently, in order to solve the above-mentioned problem, a plurality of H files 10 are inserted into the ground at angled points at the bending points a to d, and then the soil plate 20 is installed A method was proposed. However, in the method of forming a plurality of H files 10 at the bending points a to d, the both ends of the flange 12 and the soil plate 20 are in contact with each other to secure the supporting force of the soil plate 20 according to the earth pressure However, there is a problem in that the number of H files 10 to be installed on the ground increases, the number of H files 10 to be installed on the ground increases, and the H files 10 formed at the bending points a to d are adjacent to each other, It is not used in actual construction site because it is troublesome due to the high degree of difficulty of operation.

Korean Patent No. 10-1384753 (published Oct. 18, 2013)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a clutter structure in which a clutching point is formed, To provide a retaining force that is the same as that at which both ends of the flange are in surface contact with each other, and at the same time to form bending points at various angles.

According to an embodiment of the present invention, there is provided an earth retaining structure for installation in a complex terraced area where a bending point is formed, wherein the boundary of the terraced area is embedded at a predetermined distance in the ground along a point, A plurality of H files formed by a pair of flanges formed in a direction perpendicular to both sides of the web; A plurality of soil plates inserted and laminated between the plurality of H files; A plurality of support brackets spaced apart from each other by a predetermined distance along the longitudinal direction of the web and spaced apart from the flange of the H file embedded at the bending point and having a cross section of 'a' or 'b'; A plurality of connection pipes inserted between a flange and a support bracket of the H file embedded at the bending point and supported by the flange and the support bracket and inserted into the slidable plate, And a connection unit configured to interconnect the respective ends of the adjacent connecting pipes so as to be aligned with each other, wherein the connecting pipe has a hollow pipe structure having a circular cross section and having a width corresponding to the thickness of the current plate, A pair of support plates spaced apart from each other by an interval equal to the width of the insertion hole and bent inwardly of the insertion hole so as to be in surface contact with both side surfaces of one end of the current plate inserted into the insertion hole; Is vertically protruded from the support plate and is formed close to the inner surface side of the connecting pipe Wherein the connection pipe is formed to include a reinforcing plate and alignment holes formed on both sides of the insertion pipe at positions spaced apart from each other by a predetermined length in a central direction along the longitudinal direction at both ends of the connection pipe, A connecting flange formed to have a length longer than a length between the alignment holes processed in the connecting pipes formed to be adjacent to each other and formed to have a curvature so as to be brought into close contact with the outer surface of the connecting pipe; And a pair of insertion pins protruding from an inner surface of the connection flange at an interval equal to an interval between the alignment holes of the connection flange connected to the connection flange.

Even if a soil plate is installed using only one H file at the bending point in the installation of the earth retaining structure in the complex trench structure where the bending point is formed, the earth retaining structure according to the present invention can prevent the both ends of the soil plate from being in surface contact with the flange So that the same supporting force can be generated and the bending point of various angles can be formed.

In addition, compared with the conventional method in which a plurality of H files for forming the bending point are installed, there is no problem of increasing the necessary materials and workload for installing the retaining structure, Since the degree of difficulty is not high, the applicability and practicality in actual construction can be excellent.

FIG. 1 is an exemplary view showing a complex type teraclizer region.
FIGS. 2 and 3 are views showing an installation mode of a retention structure at a bending point using one H file as an example of the prior art.
FIG. 4 is a photograph showing a case where the soil plate is detached in a state where the soil retaining structure is installed at the bending point as shown in FIG. 3 as an example of the prior art.
FIG. 5 is a view showing an installation form of a retention structure at a bending point using a plurality of H files as another example of the related art.
6 is a perspective view of a retaining structure according to the present invention.
7 is an exploded perspective view showing a part of the retaining structure according to the present invention.
8 and 9 are views for explaining various installation examples of the earth retaining structure according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following detailed description of the operation principle of the preferred embodiment of the present invention, if it is determined that a detailed description of known functions or configurations related to the related art may unnecessarily obscure the gist of the present invention, do. In addition, the same or corresponding components or regions as those of the prior art are given the same reference numerals to facilitate understanding.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout.

6 is a perspective view of a retaining structure according to the present invention. 7 is an exploded perspective view showing a part of the retaining structure according to the present invention.

6 and 7, the retaining structure 100 according to the embodiment of the present invention is installed in order to prevent the collapse of the earth and sand due to the concurrent operation with the foundation work for foundation and civil engineering work. The retaining structure 100 according to an embodiment of the present invention has a main purpose of stably installing the soil plate 20 at the bending points a to d formed in a complex tearing area.

The earth retaining structure 100 according to the present invention includes a plurality of H files 10, a plurality of soil plates 20, and a plurality of connection units 30.

The H file 10 is typically used for installation of a general earth retaining structure 100 and includes a central web 11 and a pair of flanges 12 formed in a direction perpendicular to both sides of the web 11, . However, the support bracket 13 is additionally formed in the H file 10 installed at the bending points a to d.

The support brackets 13 are provided at predetermined intervals along the longitudinal direction of the center web 11 to support the connection unit 30 and are formed of steel angles having a cross section of 'a' or 'b'. The first surface 13a of the support bracket 13 is fixed to the web 11 and the second surface 13b perpendicular to the first surface 13a is disposed parallel to the flange 12, 11, the flange 12, and the support bracket 13, and the connection unit 30 is inserted and arranged in such a space so as to be in contact with the second surface of the flange and the support bracket.

The supporting bracket 13 has a first surface 13a which is fixed to the web 11 and has a free length and a coupling hole for engaging with the web 11 through a coupling member such as a bolt is formed And the second surface 13b are preferably formed in a range exceeding a half of the diameter of the connecting pipe 31 constituting the connecting unit 30, Lt; / RTI > The limitation of the length of the second surface 13b is that it is difficult to stably support the connecting pipe 31 when the length of the second surface 13b is 1/2 or less of the diameter of the connecting pipe 31, 31, the angular range in which the current plate 20 connected to the connection pipe 31 can be installed is narrowed, so that it is not easy to form the bending points a to d. The second surface 13b may be formed to be inclined at a predetermined angle in the direction of the flange 12 forming the space portion so that the connecting pipe 31 located in the space portion is fixed by the second surface 13b to a predetermined level And can be fixed.

The soil plate 20 is made of wood and is used in a conventional soil-retaining method, and a detailed description related thereto will be omitted.

The connection unit 30 is formed between the flange 12 and the second surface 13b of the support bracket 13 installed in the H file 10 at the bending points a to d as described above And is arranged in the space in the longitudinal direction of the H file 10, and is composed of a connecting pipe 31 and a connecting member 32.

The connection pipe 31 has a hollow pipe structure and is formed with an insertion hole 33 cut along the longitudinal direction at a width corresponding to the thickness of the current plate 20 and has the same width as the insertion hole 33 inside the insertion hole 33 And a pair of support plates 34 bent to have an interval can be formed. In this case, when the support plate 34 is simply bent from the insertion hole 33, the support plate 34 may be limited in area, so that the support plate 34 is separately manufactured to have a larger area, The supporting plate 34 may be formed to be connected to both sides of the insertion hole 33 by welding or the like and the supporting plate 34 may be formed separately from the inner side surface 31a of the connecting pipe 31 facing the insertion hole 33 (The other end near the inner side of the connecting pipe of the supporting plate is not fixed to the inner surface of the connecting pipe.) Accordingly, the soil plate 20 inserted into the insertion hole 33 is inserted into the insertion hole 33 and both ends of the end plate of the current plate 20 inserted into the insertion hole 33 are supported in surface contact with the support plate 34. [

The support plate 34 may further include a reinforcing plate 35 vertically protruding from the support plate 34 and formed adjacent to the inner surface of the connection pipe 31. The reinforcing plate 35 is made of a plate-like structure and has one end fixed integrally with the supporting plate 34 in a vertical direction, but the other end is not fixed to the inner surface of the connecting pipe 31, It becomes a little separated state. This is basically because when the connecting pipe 31 is manufactured, the other end of the reinforcing plate 35 including the supporting plate 34 is not only difficult to weld on the inner surface of the connecting pipe 31 by welding or the like, There is no need to fix it through. The other end of the supporting plate 34 and the reinforcing plate 35 is arranged close to the inner side surface of the connecting pipe 31 but is not fixed so that the supporting plate 34 has elasticity . That is, the soil plate 20 used in the field is finely deformed in the process of supporting the earth pressure in a state where both ends are supported on the H-file 10, so that the overall shape is somewhat exaggerated,

', And both ends (ends) of the modified current plate 20 are not minutely linear. At this time, if the support plate 34 is not elastic, only the current plate having a straight structure with both ends straight can be inserted, and it is impossible to insert the current plate with a minute deformation. However, when the support plate 34 has elasticity, since the end side of the support plate 34 can be deformed to some extent (warp) in the left-right direction, the deformed plate can be inserted and installed, Most of the soil plates except deformed or broken can be used.

The connection pipe 31 may have a plurality of divided structures, and the alignment holes 36 are formed so that the insertion holes 33 are aligned in a line when the divided connection pipes 31 are connected. At this time, the alignment holes 36 are formed at positions spaced apart by a predetermined length in the central direction along the longitudinal direction at both ends of the connection pipe 31, and may be formed on both sides with respect to the insertion hole 33.

The connection member 32 is inserted into the alignment hole 36 of the divided connection pipe 31 and connects the divided connection pipe 31 to the connection flange 31a and the pair of insertion pins 32b, As shown in FIG.

The connection flange 32a is formed so as to have a curvature such that the inner surface thereof can be brought into close contact with the outer surface of the connection pipe 31. The length of the connection flange 32a between the alignment holes 36, As shown in Fig.

The insertion pins 32b are formed to have diameters corresponding to the alignment holes 36 and are formed on the inner surface of the connection flange 32a in the upper and lower sides. At this time, the interval of the pair of insertion pins 32b is the same as the interval of the alignment holes 36 of the connection flange 31 to be connected. The length of the insertion pin 32b may be formed such that the insertion pin 32b inserted into the alignment hole 36 does not naturally fall out. Preferably, the length of the insertion pin 32b is set so as to be in contact with the reinforcing plate 35 And a magnet 32c may be additionally formed at an end of the insertion pin 32b in contact with the reinforcing plate 35. [ The insertion pin 32b is formed to be inclined with respect to the inner surface of the connection flange 32a so as to be parallel to the support plate 34 when the insertion pin 32b is inserted into the alignment hole 36. [ The end of the insertion pin 32b inserted into the alignment hole 36 is brought into contact with the reinforcing plate 35 and can be fixed to the reinforcing plate 35 by the magnet 32c formed at the end of the insertion pin 32b . Of course, the fixing strength of the reinforcing plate 35 and the insertion pin 2c by the magnet 32c can be separated by a small amount of force through the operator.

Therefore, when the connecting pins 32b of the connecting member 32 are inserted into the aligning holes 36 to connect the connecting pipes 31, the inserting pins 32b are relatively hermetically inserted into the aligning holes 36, The end of the inserted insertion pin 32b is fixed to the reinforcing plate 35 by the magnetic force so that the connecting member 32 is not separated from the connecting pipe 31 and the connected connecting pipes 31 are prevented from rotating with each other At the same time, the insertion holes 33 of the connecting pipe 31 to be connected are aligned in the same line.

8 and 9 are views for explaining various installation examples of the earth retaining structure according to the present invention.

Hereinafter, the installation of the earth retaining structure according to the present invention will be described with reference to FIGS.

8, when the soil retaining structure 100 is installed, the H file 10a fixing the soil plate installed horizontally in parallel to the soil plate 20 at the bending point, and a bending point The forming H files 10b and 10c are installed. At this time, the support bracket 13 and the connection unit 30 are installed on the H files 10a, 10b, and 10c in order to install the dust plate 20 at the point where the bending point is formed. Thereafter, when installing the H file 10c for forming another bending point around the H file 10b forming the bending point, the installation range of the H file 10c can be widely formed. Specifically, the H file 10c can be formed at various angles ranging from P1 to P3 at the bend angle of the bending point as shown in Fig. 8, 31 are in contact with the flange 11 constantly in a constant shape even when they are rotated and rotated in the space in the form of a circular section. Therefore, even when the position of the H file 10c changes from P1 to P3, both ends of the dust plate 10 can be stably supported on the flange 11 of the H file 10c through the connecting unit 30 .

9, even if the angle and direction of the bending point of the soil plate 20 provided by the connection unit 30 are variously formed at the bending point, both ends of the soil plate 20 and the H file 10 without causing a problem that the dust plate 20 is separated from the H file 10 because the space is not formed between the flanges of the dust plate 20 and the connecting pipe 31, Since both ends of the dust plate 20 are in direct surface contact with the flange 11 because they are always in surface contact with the supporting plate 34 of the connecting unit 30 held in close contact with the flange 11, A bearing force can be realized.

As described above, according to the present invention, even when a soil plate is installed by using only one H file at the bending point in the installation of the earth retaining structure in a complex terraced area where bending points are formed, It is possible to form a bending point at various angles while generating the same supporting force as that of the surface contact.

In addition, since one file for forming a bending point is applied, there is no problem that the necessary materials and workload for installing the related retaining structure are increased, and the work difficulty for forming the H file at the bending point is not high, The applicability and applicability in the field can be excellent.

In addition, when the soil board is installed at the bending point, it is possible to install the soil board by inserting the soil board into the connection unit in a simple slide manner, and the respective connecting pipes are not fixed by a separate fixing member (bolt screw or the like) The simple connection of the simple connection member can separate the connecting pipe and thus the flow plates, and the overall construction of the retaining structure can be facilitated.

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. The present invention is not limited to the drawings, and all or some of the embodiments may be selectively combined so that various modifications may be made.

10: H File 20: Tourist board
30: connection unit
31: connecting pipe 32: connecting member
33: insertion hole 34: support plate
35: reinforcing plate 36: alignment hole

Claims

A retaining structure for installation in a complex terraced area where a bending point is formed,
A plurality of H files embedded in the ground along the boundary of the terahertz region at a predetermined interval and formed of a pair of flanges formed in a direction perpendicular to both the center web and the web;
A plurality of soil plates inserted and laminated between the plurality of H files;
A plurality of support brackets spaced apart from each other by a predetermined distance along the longitudinal direction of the web and spaced apart from the flange of the H file embedded at the bending point and having a cross section of 'a' or 'b';
A plurality of connection pipes inserted between a flange and a support bracket of the H file embedded at the bending point and supported by the flange and the support bracket and inserted into the slidable plate, And a connecting member composed of connecting members interconnecting the respective ends of the adjacent connecting pipes so as to be aligned,
The connecting pipe includes:
A hollow pipe structure having a circular cross section and formed by cutting along the longitudinal direction at a width corresponding to the thickness of the soil plate;
A pair of support plates spaced apart from each other by an interval equal to the width of the insertion hole and bent inwardly of the insertion hole to thereby make surface contact with both side surfaces of one end of the current plate inserted into the insertion hole,
A reinforcing plate formed vertically protruding from the support plate and formed close to an inner surface side of the connecting pipe,
And an alignment hole formed on both sides of the insertion pipe at both sides of the connection pipe at a position spaced apart from the insertion pipe by a predetermined length in the central direction along the longitudinal direction,
The connecting member
A connecting flange formed to have a length longer than a length between the alignment holes formed in the connecting pipes which are formed to be curved so that the inner surface can be brought into close contact with the outer surface of the connecting pipe,
And a pair of insertion pins protruding from an inner surface of the connection flange and spaced apart from each other by an interval equal to an interval between the alignment holes of the connection flange,
The insertion pin
Wherein the guide portion is formed to have a length that can be in contact with the reinforcing plate when inserted into the alignment hole, and is formed to be inclined with respect to the inner surface of the connection flange so as to be parallel to the support plate.

The method according to claim 1,
The end of the support plate and the reinforcement plate are formed to have a length reaching the inner side surface of the connection pipe and apart from the inner side surface of the connection pipe so that the end side of the support plate can be flexibly deformed in the connection pipe in the left- And the retaining structure.

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