KR101474515B1 - Earth retaining wall using support and panel, method for constructing the same - Google Patents

Abstract

The present invention relates to an earth retaining wall using an earth retaining portion and a strut portion, and a method of constructing the same. Purposes of the present invention is to variously constitute an optimum strut portion appropriate for a bridge base portion construction site and a ground condition, to have excellent constructability and supporting ability, and to minimize a construction space. According to the present invention, an earth retaining wall body using an earth retaining portion and a strut portion includes an earth retaining portion (100) formed of multiple posts located in predetermined intervals along a shape of a structure including a bridge and having a panel installing rail, and an earth retaining panel (130) interposed between the posts while having longitudinal both sides coupled to the panel installing rail of the posts by being slid; and a strut portion (200) installed inside the earth retaining portion to support the earth retaining portion, wherein the strut portion includes a rail support (210) detachably coupled to the posts and having a vertical longitudinal rail; and a strut (220) having longitudinal both sides each connected to the rail formed at the rail support to support the earth retaining portion by the rail support.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthed retention wall and a method of constructing the earthed retention wall,

The present invention relates to an earth retaining wall for constructing a foundation of a pier, and more particularly, to an earthen wall for constructing a pier foundation, And a method of constructing the earth retaining wall using the earth retaining part and the supporting part.

Generally, in a temporary piling work of a pier foundation work, a wood pile board method in which a beam (for example, H-beam) is punched at a predetermined interval to build up a floor, Sheet-pile method is mainly used to construct a wall by continuously installing a sheet-pile.

First, the wood pavement method is the oldest method which is widely applied to the pavement construction. However, the wood pavement method has been blindly followed because there is no alternative method. In the wood pavement board method, the wood is difficult to maintain uniformity, has a large change in strength according to the water content, has to be installed in consideration of the groundwater level, and there is a serious problem in stability since there is no water repellency.

In addition, after the construction, it is the principle to remove the wood panel, but due to the earth pressure, it is hard to dismantle in reality and only the H beam is extracted. Therefore, the extracted site is a tangled arrangement of the timber, voids are formed, and in the end, the construction of the trench is made. In addition, the corrosion of the wood causes a risk of subsidence of the ground.

In addition, despite the large number of members installed per unit area, it can not be reused, and also requires a lot of installation manpower and work.

In addition, it is impossible to use wood pavement method using equipment. In addition, since the spacing of the H beam is not uniform, it is necessary to cut the material at the site. In order to fix it, it is necessary to install grout and winter neck (wedge)

There is a considerable problem.

On the other hand, as for the sheet-pile construction method, the above-mentioned construction method is mainly used for water-repellent construction, and it is mainly used for water wall construction, harbor structure, and soil structure such as a garbage wall of a landfill, . Such

The sheet pile method is quite complicated in structure. However, if the sheet pile method is briefly described, both ends of the sheet pile method can be fitted to each other with holes or irregularities so that the steel sheet pile is vertically inserted into the ground, And put it in the ground again. Repeatedly, this can be used to construct a single water wall. This wall can be used as a structure as it is. If it is temporary, it can be recovered later.

This sheet pile construction method is one of the oldest public construction methods in Korea and abroad.

However, such a sheet pile method is not economical due to the necessity of expensive piling equipment during installation, and can cause ground settlement on the back surface due to punching, warping occurs due to insufficient self-rigidity, It is impossible to change the position of the stiffener and it is inconvenient for the work because the number of the braces is large. Further, since the welt and the brace must be additionally installed after the construction, The disadvantage is significant.

To solve such a problem, Patent Document 1 (Korean Patent Registration No. 10-0568988) patented by the present applicant is available.

Patent Document 1 discloses a structure in which a slide panel is provided between struts to form a quadrangular earth retaining portion and a brace is provided in a rhombic form inside the earth retaining portion to form a supporting portion, which is excellent in stability, economical efficiency, Since the rail is formed integrally with the support, if the rail is damaged only during the handling of the support, or if only the support is damaged, the entire support can not be used. Also, since the angle of the rail is designed to be installed only in rhombus, Since a wide dead space is created, there is a problem that the work process is long and the cost is increased. In addition, since only the stabilized rhombic form is always constructed irrespective of the size of the pier foundation and the ground condition, Problems with poor stability have.

In addition, since the braces support only the central portion of the sides between the quadrangular corners of the earth retaining portion, and the supporting portion is formed only in a rhombus shape, there is a problem that the retaining portion can not be supported uniformly as a whole.

Korean Patent No. 10-0568988

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide an apparatus and a method for constructing a bridge pier using a piercing portion and a piercing portion capable of minimizing a dead space, It is intended to provide an earth retaining wall and this construction method.

The earth retaining wall using the earth retaining part and the supporting part according to the present invention comprises a plurality of supports which are erected at a predetermined distance from each other along the shape of the structure including the piers, Wealth; And a strut part installed inside the securing part to support the securing part. The strut part includes a rail support coupled to the struts and having upper and lower longitudinal rails, both sides supporting the earth retaining panel among the struts A plurality of first struts connected respectively to the rail supports coupled to the two struts to be installed in the same direction as the earth retaining panel and a plurality of first struts connected to the rail supports connected on both sides of the first strut, Wherein the first and second scaffolds are respectively coupled to at least one bracket and both ends of the support in the longitudinal direction and are respectively slidably coupled to the rail supports. do.

According to the earth retaining wall and the construction method using the earth retaining part and the supporting part according to the present invention, it is possible to use the rail supporting part at a low cost by replacing only the part necessary for some damage by connecting the rail supporting part to the supporting part and connecting the supporting part to the rail supporting part. It is possible to construct an optimal earth retaining wall suitable for the condition of the site by installing various supports at the right place and by installing the support in the proper place so that the ground can be prevented from collapsing and the amount of unnecessary materials can be reduced, It is effective to reduce the cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a construction of an earth retaining wall using a retaining portion and a retaining portion according to Embodiment 1 of the present invention; FIG.
2 is a front view of the construction of the earth retaining wall using the earth retaining part and the supporting part according to the first embodiment of the present invention.
FIG. 3 is an enlarged plan view of a corner-type support applied to an earth retaining wall using the earth retaining part and the support part according to the first embodiment of the present invention; FIG.
4 is a plan view showing a connection state between a rail support, a brace and an intermediate support, which is applied to an earth retaining wall using the earth retaining part and the support part according to the first embodiment of the present invention.
5 is a front view of the construction of the earth retaining wall using the earth retaining part and the supporting part according to the second embodiment of the present invention.
6 is a front view of the construction of the earth retaining wall using the earth retaining part and the supporting part according to the third embodiment of the present invention.
7 is a front view of another construction state of the earth retaining wall using the earth retaining part and the supporting part according to the third embodiment of the present invention.
8 to 11 are front views of a construction state showing an example in which the earth retaining panel applied to the earth retaining wall using the earth retaining portion and the supporting portion according to the present invention is a sheet pile.
12 is a cross-sectional view showing an example in which a bottom portion of a strut applied to a retaining wall using a retaining portion and a retaining portion according to the present invention is inserted into the ground.

≪ Example 1 >

As shown in FIGS. 1 and 2, the earth retaining wall using the earth retaining part and the supporting part according to the present embodiment includes the earth retaining part 100 and the supporting part 200.

The earth retaining part 100 is a pillar installed at a predetermined distance from each other along the shape for construction of the pier foundation 1. The four corner pillars 110 and the corner pillars 110 are fixed (Shown as two in the figure) intermediate posts 120 installed at a distance from each other and between the corner posts 110 and the intermediate posts 120 and between the intermediate posts 120 And a padding panel 130.

Each of the corner pillars 110 and the intermediate pillars 120 is fixed by various methods such that the lower ends of the corner pillars 110 and the middle pillars 120 are set up at a predetermined distance along the wall surface of the work space,

As shown in FIG. 3, the corner pillars 110 are formed in a triangular shape in plan view in accordance with the corner type, and first and second panel mounting rails 111 and 112 are formed on both sides for connection of the earth retaining panel 130 . The first and second panel mounting rails 111 and 112 may be configured as two stages arranged forward and backward as shown in the figure so that the earth retaining panel 130 is installed at two front and rear stages. It is also possible to install the earth retaining panel 130 on the second panel mounting rails 112 and the wale band on the front first panel mounting rails 111 out of the two first and second panel mounting rails 111 and 112 .

The first and second panel mounting rails 111 and 112 of the corner-type column 110 are formed in a rail shape so that both longitudinal sides of the earth retaining panel 130 are slidably connected along the vertical direction. 120 and 120, respectively, on both sides in the longitudinal direction of the panel mounting rail. As shown in the figure, the carrier part includes guide protrusions 131 formed by joining iron plates to both end portions of the earth retaining panel 130 and slidably coupled to the first and second panel mounting rails 111 and 112. Of course, the carrier can be replaced with various configurations such as wheels.

Supporting protrusions 111a and 112a are formed on the inlet side end portions of the first and second panel mounting rails 111 and 112 so that the guide protrusions 131 of the earth retaining panel 130 are not detached.

The first and second panel mounting rails 111 and 112 and the guide protrusions 131 are formed in a dovetail type and can be of any shape for preventing sliding and departure. In addition, among the constituent elements described below, the portion guiding the sliding is not limited to the one shown in the drawing, but also includes the one formed in the dovetail shape.

The corner pillars 110 having the above-described structure are installed in the square corners of the working space in a rectangular shape.

It is preferable that the corner-type column 110 has all the products capable of performing the functions described above, and the lower end is formed to be pointed.

As shown in FIG. 4, the intermediate strut 120 may be formed of two stages of the first and second panel mounting rails 121 and 122, and of course, only one stage of the panel mounting rails.

The first and second panel mounting rails 121 and 122 of the intermediate strut 120 are also formed with the support protrusions 121a and 122a so that the guide protrusions 131 of the earth retaining panel 130 are not separated from the entrance side end portions.

It is preferable that all the products capable of performing the functions described above (for example, an H beam and a combination of two H beams) are formed in the intermediate column 120 and a lower end is formed to be sharp.

The rail support 210 of the support part 200 is installed on the intermediate support 120 for installation of the support part 200.

A rail 123 for mounting the rail support 210 is formed on one side of the intermediate support 120.

The rail 123 may be a groove formed in the upper and lower longitudinal directions with a gap between the one side of the intermediate support 120 as shown in the figure, for example, by welding upper and lower rectangular steel pieces or angles.

The supporting unit 200 includes a rail support 210 and a bracket 220.

The rail support 210 is slidably coupled to the rail 123 of the middle strut 120 along the vertical direction to support the adjacent struts 220. The rail support 210 is a three- And the like.

The rail support 210 includes a pair of guide protrusions 211 which are slidably mounted on the rail 123 of the intermediate support 120 so as to be slid along the vertical direction and to be separated from each other.

The rail support 210 is provided with first and second rails 212 and 213 for connecting the braces 220 of the braces 200.

The first and second rails 212 and 213 are connected to neighboring struts 220 and are formed in the form of a rail or the like so that the struts 220 can slide along the vertical direction.

Various kinds of rail supports 210 having the first and second rails 212 and 213 having various angles are prepared and the rail support 210 having an angle corresponding to the field condition is selected.

The first and second rails 212 and 213 are configured to be oriented in different directions so that the neighboring braces 220 can be installed at various angles.

The rail support 210 may have a length equal to that of the middle support 120 and may be installed entirely in the middle support 120. However, even if the brace 220 is not installed in all the sections, The length of the intermediate strut 120 is shorter than that of the intermediate strut 120. [ In this case, the rail support 210 should be installed at a position for installing the brace 220, and a stopper for setting the position of the rail support 210 may be formed on the rail 123 of the intermediate support 120 . The stopper may be formed or fixed to the rail 123, and may be a protrusion or a bolt for supporting the rail support 210 at the bottom. The stopper may be a fastening bolt that passes through the rail support 210 and is fastened together with the intermediate support 120.

Of course, it is also possible to form only one rail so as to install only one bracket 220, which will be described in detail in another embodiment to be described later.

The braces 220 are detachably coupled to both ends of the bracket assembly 221 in the longitudinal direction of the bracket assembly 221 and are formed of one or more braces (beams, boxes, tubes, etc.) And a rolling support 222, which is slidably coupled to the rails 212 and 213, respectively.

The bracket assembly 221 may be assembled by assembling the bracket 221 to facilitate the manufacture of various lengths depending on the field conditions, and the bracket may be assembled by a commonly used bolt and nut fastener, welding, or the like .

The rolling support 222 is a block having a larger cross-sectional area than the bracket assembly 221 and is detachably coupled to both longitudinal ends of the bracket assembly 221 by fasteners or the like.

The struts 220 include one or more rollers 223 that are mounted on the outside of the rolling support 222 to smoothly slide along the rails 123 of the intermediate struts 120.

Also, the braces 220 are equipped with one or more lifting rings 224 to facilitate installation and disassembly.

In this embodiment, as shown in FIG. 1, an octagonal strut 200 is formed in a quadrangular earth retaining part 100, so that eight rail supports 210 and eight struts 220 are used .

In this embodiment, the brace 220 includes a first brace 220-1 installed in the same direction as the earth retaining panel 130, and a second brace 220c connected to the first braces 220-1 adjacent to the first brace 220-1. (220-2).

Of course, the first and second braces 220-1 and 220-2 are coupled to the rail support 210 installed on the intermediate support 120. [

In the present embodiment, the neighboring braces 220 share one rail support 210, that is, all the braces 220 are connected in series through the rail support 210.

In the method of constructing the earth retaining wall according to the present embodiment, a method of simultaneously performing excavation while constructing the earth retaining wall of this embodiment, a work space for constructing the foundation of the pier is secured by grounding the ground, A method of constructing, and so on.

The electronic wall construction and excavation parallel method is a first step of installing eight rail supports 210 on the floor in the form of an octagon and the two steps of placing the braces 220 between the rail supports 210, A second step of engaging with the first and second rails 212 and 213 of the neighboring rail supports 210 and connecting the rails 123 of the intermediate supports 120 with the guide projections 211 of the rail supports 210, A third step of inserting the middle strut 120 into the ground with an excavator and sandwiching the strut panel 130 between the middle struts 120 and the corner portion and pressurizing the strut panel 130 with the excavator A fifth step of inserting the corner pillars 110 into the ground by sandwiching the corner pillars 110 on the adjacent padding panel 130 and using the excavator to push the corner pillars 110 into the ground; (The inside of the earth retaining part 200 and the inside of the earth retaining part 100) to secure a working space, The process may be a single process or the digging and the press-in of the material (the earth retaining part 100, the supporting part 200) may be performed two or more times.

The method of constructing the earth retaining wall after disrupting the latter work space includes a first step of securing a work space by trenching the ground, a corner type strut 110 is installed at four corners of the work space, A second step of installing an intermediate strut 120 between the struts 110 and installing a strut panel 130 between the corner strut 110 and the intermediate strut 120 to install the strut 110 A fourth step of installing a rail support 210 on the intermediate support 120 and installing a brace 220 on the rail support 210 to construct the support 200. In the present method, it is also possible to apply the retaining part 200 first, and then to apply the retaining part 100 afterwards.

≪ Example 2 >

As shown in FIG. 5, the earth retaining wall using the earth retaining part and the supporting part according to the present embodiment is characterized in that the supporting bracket is installed in two upper and lower stages.

The first stage brace 220A and the second stage brace 220B are slidably installed through the same rail support as that of the first embodiment. As shown in the drawing, the first stage rail support 210A And a second-stage rail support 210B are provided, respectively, and are independently installed in the respective rail supports.

The other configuration is the same as that of the first embodiment, and a detailed description thereof will be omitted.

≪ Example 3 >

As shown in FIG. 6, the earth retaining wall using the earth retaining part and the supporting part according to the present embodiment may include a corner supporting part 200-1 and a center supporting part 200-2 as another example of the supporting part 200 .

The corner supports 200-1 are installed on the rail supports 210 on the intermediate supports 120 installed on the two sides adjacent to each other while the braces 220 are inclined to the corner of the earth retaining part 110 That is, four braces 220 are provided at the four corners, and the four braces 220 are not connected to each other as compared with the first embodiment. Therefore, only one of the first and second rails of the rail support 210 is coupled to the bracket 220, so that the other one of the rails is not used.

The center strut 200-2 is disposed such that the strut 220 is disposed between the corner struts 200-1 in a direction transverse to the tetragonal strut 200, And can be directly fixed to the intermediate strut 120 or can be fixed to the intermediate strut 120 or the rail support To the intermediate strut 120. As shown in FIG. The rail support used in the central supporting portion 200-2 is a structure in which only one rail is formed.

FIG. 7 is a modification of the present embodiment, in which four corner straps 200-1 and two center straps 200-2 are formed.

The four corner support parts 200-1 are set two by two so that the two corner support parts 200-1 are installed by sharing one rail support 210. [

The present invention is applicable to various types of earth retaining panels because of the large rigidity of the retaining walls by the retaining part 200, and it is possible to use a conventional wood flooring plate, iron plate and sheet pile.

As shown in FIGS. 8 and 9, the seat-file type earth retaining panel 130A and the file chamber 140 are separated from each other. The seat-type retention panel 130A has various concave- A plurality of files in a bent form are configured to be connected through overlap or interlocking, and are installed through the file chamber 140. [

The file chamber 140 guides the sheet-filament type earth retaining panel 130A to be installed in a linear shape and includes a panel guide hole 141 having a concave-convex structure A box shape (a box shape or the like in which a reinforcing rib is formed therein, but not limited to a box, and a structure in which a panel guide hole is provided). The shape and size of the panel guide hole 141 are changed according to the connection method (overlapped type, interlocking type) of the sheet-type earth retaining panel 130A.

The file chamber 140 is formed with a corner post 110 adjacent to both sides in the longitudinal direction and a guide protrusion 142 slidably connected to a rail of the intermediate post 120. The guide protrusion 142 may be formed of a combination of a plurality of iron pieces as shown in the drawing, and is not limited to the structure shown in the drawings, but may be any structure that does not slip off along the rail.

The file chamber 140 is lifted by a crane or the like and the guide projection 142 is aligned with the rails of the supports 110 and 120 and then lowered so that the file chamber 140 is inserted between the supports 110 and 120.

Since the file chamber 140 is installed at a certain height from the bottom of the work space, that is, the file chamber 140 is different depending on the installation height of the seat-file type earth retaining panel 130A, one or more of them is stacked up and down.

In addition, when two or more file chambers 140 are stacked and used, the sheet-type earth retaining panel 130A can be smoothly installed only when the panel guide holes 141 are communicated with each other, The interlocking protrusions and the grooves may be formed to correspond to each other so that the panel guide holes 141 of the file chambers 140 stacked vertically are naturally matched. The interlocking protrusions and grooves are preferably formed in a tapered cross-section for natural interlocking. The file chamber 140 is preferably made of steel.

After the file chamber 140 is installed between the supports 110 and 120, the seat-filament type earth retaining panel 130A is installed as follows.

The seat filing type earth retaining panel 130A is lifted to fit the bottom of the seat filing retention panel 130A to the entrance of the panel guide hole 141 and inserted, 140 is inserted into the panel guide hole 141, the sheet-like type earth retaining panel 130A passes through the empty space, so that it is easily inserted without a large force.

Since the bottom portion of the seat file type earth retaining panel 130A is inserted until it touches the bottom portion of the work space, a part of the seat file type retention panel 130A is inserted into the file chambers 140, ) Are maintained in a linear fashion.

The bottom of the seat-filament type earth retaining panel 130A is inserted into the ground, and a near-field surface 132 is formed in the seat-file type earth retaining panel 130A. The near-field (132) maximizes the order function by forming a wall that blocks the flow of water in the ground to avoid workspace, and the depth varies depending on the ground condition.

An expansive material of a water-swellable material may be used between the sheet pile earth retaining panels 130A so that leakage does not occur at the joints of the seat pile earth retaining panels 130A.

10 shows an example of using a sheet pile earth retaining panel 130A together with a general earth retaining panel 130B (which refers to all products other than sheet pile), and the file chamber 140 is supported on pillars 110 and 120 The seat filing type earth retaining panel 130A is installed through the panel guide hole 141 of the file chamber 140 and the seat filing retention panel 130A is installed only up to a certain height from the ground, 130A, that is, the upper portion of the file chamber 140 installed at the highest place.

In such a case, a sheet portion is formed by the sheet-filament type earth retaining panel 130A and a reinforcement portion (earth retaining portion) is formed by the general earth retaining panel 130B.

11 shows a state in which the seat filing type earth retaining panel 130A and the general earth retaining panel 130B are parallel to each other and the bottom of the supports 110 and 120 is inserted into the ground and the seat filing type earth retaining panel 130A is supported by the supports 110 and 120, It is also possible to install it along the nearest point of view.

However, as shown in FIG. 12, the bottoms of the supports 110 and 120 may be divided into the near-end portions 113 and 124 (see FIG. 12) And more rigidly installed in the ground through the near-field (113, 124). The corner pillars 110 and the middle pillars 120 are separately described in the present invention and the corner pillars 110 and the middle pillars 120 are all inserted into the ground or only one of them .

The manner in which the pillars 110 and 120 are inserted can be applied to all types of earth retaining panels (general soil board, iron plate, sheet pile, etc.).

100: earth retaining part, 110: corner type holding part
120: middle support, 130: sheath panel
130A: sheet pile type earth retaining panel, 200:
210: rail support, 220: brace
300: Wale

Claims (13)

A plurality of corner pillars (110) formed along the shape of a structure including a pier and having a bottom portion inserted into the ground, and a plurality of corner pillars (110) formed between the corner pillars One or more middle struts 120 disposed at a predetermined distance from each other and having a near position where the bottom is inserted into the ground, and guide projections 131 formed between the corner struts and the intermediate struts on both sides in the longitudinal direction, (100) comprising a cornering panel (130) slidably coupled to the cornering pillars and the panel mounting rails of the middle pillars through the pillars (100);
And a strut part (200) installed inside the earth retaining part to support the earth retaining part,
[0027]
A rail support 210 joined to and separated from the intermediate support through a sliding,
And a pair of struts (220), both sides of which are coupled to and separated from the rail supports by sliding and supporting the earth retaining parts through the rail supports,
The intermediate strut has a rail 123 formed on an inner surface thereof in the shape of a vertical vertical plate,
The rail support includes a guide protrusion 211 which is formed at one side thereof so as to enclose the rail 123 of the intermediate support from both sides thereof and is slidably and detachably coupled to the rail 123 of the intermediate support, The first and second rails 212 and 213 are formed together,
The brace may include a length-adjustable bracket assembly 221 having at least one bracket assembled therein, a pair of bracket assemblies 221 and 224 detachably coupled to both longitudinal ends of the bracket assembly, And a rolling support (222) slidably coupled to the rail, wherein the rolling support is connected to the rail support in different directions. delete delete The seat panel according to claim 1, wherein the earth retaining panel is a sheet pile type earth retaining panel (130A) that is bent in a concavo-convex shape to increase flexural rigidity and is installed with a base portion (132)
A panel guide hole 141 through which the both sides of the panel guide hole 141 are inserted is formed in a box shape with a guide protrusion that is slidably connected to the corner post and the intermediate post or the intermediate post on both sides in the longitudinal direction, 140), wherein the seat-file-type earth retaining panel is installed through the near-field entrance through the panel guide hole (141) of the file chamber. The seat file type seat panel (130A) according to claim 4, wherein the seat file type seat panel (130A) is installed only up to a certain height from the floor of the work space, and the seat file type seat 130B are stacked on the upper and lower walls of the earth retaining wall. The folding device according to claim 4, wherein the corner pillars and the middle pillars are formed in two stages, respectively, and the seat pile type ear mold panel is installed together with the pile chamber on the inside of the corner pillars and the middle pillars, And the other type of the earth retaining panel (130B) except for the sheet pile retention panel is installed on the outer side of the pillar and the middle pillar. delete The method of claim 1, 4, 5, or 6,
Wherein the support has a plurality of first struts connected to two intermediate supports supporting the earth retaining panel together on both sides of the middle struts through a rail support and installed in the same direction as the earth retaining panel, And a plurality of second struts connected to the middle strut connected to the first strut adjacent to the first strut through the rail support to be inclined. The supporting structure according to claim 1, claim 4, claim 5 or claim 6, wherein the supporting portion comprises a corner supporting portion provided at an edge of the quadrangular retaining portion (100) and a corner supporting portion And at least one central strut part having both sides connected to the strut. delete A first step of installing the rail support 210 having the first and second rails 212 and 213 formed on one side thereof with the guide protrusions 211 facing each other in a different direction at a predetermined distance from each other, ;
A pair of legs 220 comprising a lengthwise variable type bracket assembly 221 assembled with at least one bracket and a rolling support detachably coupled to both longitudinal ends of the bracket assembly and equipped with rollers 223, A second step of interposing the rolling support between the rail supports 210 and sliding the first and second rails of the rail support 210 into the rail support 210 to construct the support 200;
A third step of fitting the rail 123 of the intermediate strut 120 in alignment with the guide protrusion 211 of the rail support 210 and press-fitting the middle strut into the ground;
The guide protrusions 131 formed at both sides of the retaining panel 130 in the longitudinal direction of the retaining panel 130 are inserted into the panel mounting rails of the intermediate support 120 A fourth step of press-fitting the earth retaining panel 130 into the ground;
A plurality of corner pillars 110 are placed between neighboring pillar panels 130 and guide projections 131 of the pillar panels are inserted into the panel mounting rails of the corner pillars and the corner pillars are press- A fifth step of constructing a part;
And a sixth step of excavating the inside of the support part 200 or the inside of the support part 200 and the inside of the earth retaining part 100 to secure a work space for construction of the bridge piercing part Construction method of retaining wall using retaining part and supporting part. A first step of securing a work space for construction of the bridge pier base by trenching the ground;
A corner post 110 is installed on four corners of the work space and an intermediate post 120 is installed between the corner post 110. The corner post and the bottom of the intermediate post A second step of inserting into the ground;
The earth retaining panel 130 is installed between the corner pillars 110 and the intermediate pillars 120 so that the guide protrusions 131 formed on both sides in the longitudinal direction of the earth retaining panel can be separated from the corner pillars 110, A third step of slidably installing the earth retaining panel (130) after inserting it into the panel mounting rails formed on the pillar and the middle support, respectively;
A rail support 210 is installed on the middle support 120 and a brace 220 is installed on the rail support 210 to construct the support 200,
The rail support 210 having the first and second rails 212 and 213 formed on one side thereof and the first and second rails 212 and 213 on the other side facing each other may be inserted into the intermediate support 120 ),
A pair of legs 220 comprising a lengthwise variable type bracket assembly 221 assembled with at least one bracket and a rolling support detachably coupled to both longitudinal ends of the bracket assembly and equipped with rollers 223, And a fourth step of slidably engaging with the first and second rails of the rail support via the rollers moving along the first and second rails of the rail support to construct the supporting part 200. [ Construction method of retaining wall using part and supporting part.
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