KR20170090190A

KR20170090190A - Steel structures having departure prevention structure for sheathing work and construction method thereof

Info

Publication number: KR20170090190A
Application number: KR1020160010746A
Authority: KR
Inventors: 금영석; 김영길
Original assignee: 주식회사 금원건설; 금영석; 김영길
Priority date: 2016-01-28
Filing date: 2016-01-28
Publication date: 2017-08-07

Abstract

The present invention relates to a steel sheet retaining wall structure having a steel sheet separation preventing structure. The steel sheet retaining wall structure comprises: an H-pile inserted into the ground at constant intervals; and a steel sheet inserted between the H-piles. A steel sheet separation preventing structure comprises: one or more guides mounted inside a one-side flange of the H-pile, having an L-shaped cross-sectional surface, and having each bent surface having a rectangular shape; and a plurality of correction products of which one side surface has a linear shape, mounted on a surface unit spaced from both end parts of the steel sheet at a predetermined distance at two rows having a predetermined distance in the vertical direction and having predetermined thickness.

Description

TECHNICAL FIELD [0001] The present invention relates to a steel plate retaining structure having a steel plate departure preventing structure and a method of constructing the steel plate retaining structure.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel plate cladding structure having a steel plate departure-avoiding structure and a construction method thereof, and more particularly, to a cladding construction for preventing a surrounding ground from sinking or collapsing when excavating a ground for construction of various buildings The present invention relates to a steel plate retaining structure having a steel plate escape preventing structure in which a guide is attached to a flange of an H-shaped file and then a steel plate is inserted to prevent the steel plate from being separated.

Sheathing is a term generally used for the construction of various buildings and for the purpose of preventing the surrounding ground from sinking or collapsing when excavating the ground in civil engineering construction.

In general, the soil retaining method according to the excavation of the ground can be classified into the slope opening method using the excavation surface and the opening method using the earth retaining wall. The slope opening method is a method of excavating the ground in a state in which slope inclination stability can be ensured without using an earth retaining wall. The earth retaining wall method is a wall structure in which an H type pile, an earth retaining plate, Pile, and underground continuous wall.

One of the important factors for selecting the retaining method is the stiffness of the retaining wall according to the ground condition and the water repellency to prevent leakage of the ground groundwater.

Of the various types of soil retaining methods, the earth retaining wall method in which an H-shaped pile is inserted into the ground, and an earth retaining plate made of steel or steel is inserted between the H-shaped piles is actually used. , The steel plate is often used as a retaining plate due to a problem that the rigidity and water repellency are relatively low and the reuse ratio of the wood is lowered after the construction when the wood is inserted into the retaining plate.

When steel plate is used as the earth retaining plate, there is a problem in actual construction. It is difficult to precisely match the position and direction between the H-shaped piles as the depth to be inserted when inserting the H-type pile into the ground is increased will be. When the steel sheet is inserted between the H-shaped piles, both side edges of the steel sheet are obliquely inserted in the space between the flanges of the H-shaped pile. As a result, the steel sheet is separated from the flange portion and is released to the outside Occurs. Eventually, the gap between the H-shaped pile and the steel plate causes soil or water to leak out.

A related prior art is Korean Patent No. 10-0882831 (registered on Feb. 03, 2009).

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method of installing a plurality of guide guides on a flange of an H-shaped file at regular intervals to prevent the steel plate from being inserted obliquely in the space between the flanges of the H- The present invention provides a steel plate retaining structure having a steel plate departure preventing structure capable of preventing the steel plate from being separated from the steel plate.

In addition, the present invention provides a steel plate separating apparatus capable of preventing a steel plate from being firmly fixed between H-shaped piles and being prevented from flowing to the left and right by installing a plurality of correction products at a predetermined interval on a surface portion spaced a certain distance from both ends of the steel plate, The present invention provides a steel plate retaining structure having a steel plate structure.

Further, according to the present invention, by connecting a correction material to a steel plate by welding or a bolt / nut, and coupling a guide guide to a flange of the H-shaped file by bolts / nuts, the guide plate and the steel plate can be easily detached The present invention has been made in view of the above problems, and it is an object of the present invention to provide a steel plate retaining structure having a preventive structure.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems.

According to another aspect of the present invention, there is provided a steel plate securing structure having a steel plate separation preventing structure, comprising: an H-shaped pile inserted at regular intervals on the ground; and a steel sheet inserted between the H-shaped piles, Wherein at least one of the guide grooves has a rectangular cross-section, and each of the guide grooves has a rectangular cross-section; The steel plate retaining structure according to claim 1, further comprising: a steel plate retaining structure having a plurality of steel plates separated from each other by two rows and having a predetermined thickness and having one side in a straight line shape.

Specifically, the guide guide may be formed with an inclined portion whose upper end is cut out by an oblique line on the upper edge of one side of the bent portion.

Specifically, the guiding guide is such that a surface of the two bent surfaces facing the other side flange and the other side is in close contact with and bonded to the inside of the one side flange, The thickness of the insulating layer is spaced apart by a predetermined thickness.

Specifically, the guide member may be pre-punched on a surface of the one side flange coupled to the inside of the one side flange, and may be fixedly installed by a bolt / nut fastening method when engaged, or may be fixedly installed by welding without punch. have.

Specifically, the correction material may be mounted so that the outer side faces abut the edges of the H-shaped pile flanges located on both sides, thereby preventing the steel plate from moving left and right.

Specifically, the modified product may be welded to the steel plate or coupled with a bolt / nut.

Specifically, the steel sheet may have one or more treads for grouting the body of the steel sheet, or a tube of a certain length for grouting on the surface of the steel sheet contacting the soil may be joined in one or more rows. have.

According to another aspect of the present invention, there is provided a method of constructing a steel plate securing structure having a steel plate detachment structure, comprising assembling a guide guide in an H-shaped pile and assembling a correction material on the steel plate to prepare the H- A H-shaped file insertion step of inserting the H-shaped file at regular intervals on the ground; a steel plate inserting step of inserting the steel sheet into the space between the inserted H-shaped files in the longitudinal direction of the H- And an underground excavation step of excavating at a certain depth.

Specifically, the method for constructing the steel plate securing structure having the steel plate departure-avoiding structure may further include grouting the steel plate by connecting the steel pipe to the steel plate.

Specifically, the step of inserting the steel sheet may be characterized in that the steel sheet is inserted into the underground by applying a vibration to the steel sheet by pulling a lower portion of the steel sheet with a heavy equipment machine or using a vibro hammer.

Specifically, a plurality of the guide guides are mounted on the inner side of one side flange of the H-shaped file, and the cross-sectional shape of the guide is 'A', and each bent side has a rectangular shape.

Specifically, the correction product may include a plurality of rows of two rows arranged at regular intervals in a vertical direction on a surface portion spaced apart from both ends of the steel sheet by a predetermined distance, and may have a constant thickness and one side may be a straight line. have.

As described above, according to the present invention, the steel sheet is inserted between the H-shaped piles for the ground slope and the degree of the surrounding ground in the ground excavation, and the guide is mounted on the flange of the H-shaped pile and the correction material is mounted on the steel plate. So that it is prevented from moving to the outside.

In addition, since the steel plate is closely contacted and joined between the H-shaped files by the guide guide and the modified product, water leakage is prevented and the water repellency is improved.

Further, since the guide corners of the guide guide are inclined at the upper edge of the folded one side, the steel plate can be smoothly inserted between the H-shaped files.

In addition, since the guide guide mounted on the H-shaped file can be detachably attached by welding or bolts / nuts, it is easy to assemble and directly use on the spot.

1 is a perspective view showing a state of installing a steel plate securing structure having a steel plate departure prevention structure according to an embodiment of the present invention.
FIG. 2 is a view showing an assembled view of the steel plate and the H-shaped file shown in FIG. 1. FIG.
FIG. 3 is a view showing various embodiments of the guide shown in FIG. 1. FIG.
Fig. 4 is a plan view of the steel plate and the H-shaped file shown in Fig. 1. Fig.
FIG. 5 is a view showing an operation state of the guide member when the steel plate is inserted in FIG. 1;
6 is a view showing an embodiment of a grouting operation of a steel plate retaining structure having a steel plate separation preventing structure according to an embodiment of the present invention.
7 is a view illustrating a method of constructing a steel plate securing structure having a steel plate separation preventing structure according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a perspective view showing a state of installing a steel plate cladding structure having a steel plate departure prevention structure according to an embodiment of the present invention. The steel plate cladding structure includes an H-shaped pile 100 and a steel plate 200, A guide guide 110 mounted on one side of the upper and lower flanges of the file 100 and a plurality of correction products 210 provided in two rows at regular intervals on a surface portion spaced a certain distance from both ends of the steel plate 200.

First, the H-shaped file 100 refers to a rod-shaped steel member having a "H" -shaped cross section, which is inserted into the ground. Among the members used in various soil retaining methods, it is most widely used, and it has an advantage that it is possible to reuse the used members while the construction is simple.

The guide guide 110 is a steel member that is mounted on the inside of the one side flange 101 of the upper and lower flanges of the H-shaped file 100 and has a cross section of 'A', and each bent side has a rectangular shape, The upper edge of one side has an inclined portion 111 whose end portion is sloped.

The guide guides 110 are mounted on both sides of the inside of the one side flange 101 of the H type file 100 so that one or a plurality of the guide guides 110 are mounted at positions spaced apart from each other by a predetermined distance along the longitudinal direction of the H type file 100 The guide guide 110 may be extended by the length of the H-shaped file 100 and only one or two of the guide guides 110 may be mounted on the inside of the one side flange 101 of the H- (See Fig. 3).

The guiding guide 110 is formed such that when the guiding guide 110 is mounted on the one side flange 101, the surface having the inclined portion 111 of the two bent surfaces faces the other side flange 101 and the other side faces the one side flange 101 So as to be brought into close contact with each other.

In addition, the guide guide 110 may be pre-punched on a surface coupled to the inside of the one side flange 101, and may be fixed in a bolt / nut fastening manner when engaged or fixed by welding without punching. This has the advantage that the components can be separately prepared and assembled easily in the field so that they can be directly used for construction.

When the guide guide 110 is mounted inside the one side flange 101 of the H-shaped file 100, a gap is formed between the flange 101 and the guide 110 by the thickness of the steel plate 200, The steel plate 200 can be inserted. Therefore, the inserted steel plate 200 can be stably coupled to the H-shaped file 100 (see FIG. 4) because the space that can be moved back and forth in the recessed portion 103 of the H-shaped file 100 is cut off.

The inclined portion 111 refers to a portion where the upper edge of the guide guide 110 is cut obliquely. This is because when the steel plate 200 is inserted into the H-shaped pile 100, only the thickness of the steel plate 200 is secured by the guide 110 so that insertion of the steel plate 200 is difficult. However, if the inclined portion 110 is formed on the upper edge of the guide guide 110, the steel plate 200 is slid along the inclined portion 110 even if the steel plate 200 is misaligned at the time of inserting, (See FIG. 5).

In the past, when using the H-type file, the horizontal board made of wood between the H-type files (100) was mainly used as the earth retaining plate. The stiffness and water repellency were relatively lower than the steel plates, Plate is used a lot of steel plate.

The steel plate 200 is a steel member inserted between two H-shaped piles 100 and used as an earth retaining wall in the earth retaining work.

The steel plate 200 may have at least one tread 211 for grouting the body of the steel plate 200. Grouting refers to a method of pressurizing cement paste into the voids in the ground to improve the ground or prevent water. It is mainly used as a finishing process in earthworks.

In the embodiment of the present invention, a tread 211 is formed on the lower part of the steel plate 200 and then a connecting member such as a nipple P is mounted for the grouting operation. Thereafter, It can be connected to the pump. Of course, the positions and the number of the treads 211 can be changed as desired.

In addition, a tube 212 having a predetermined length for grouting on the surface of the steel plate 200 contacting the soil can be coupled in one or more rows. The pipe 212 and the steel plate 200 may be separately prepared at the time of actual construction so that the pipe 212 is coupled with the steel plate 200 by welding in the manner described above. 212) can be combined to be used immediately for construction.

The tube 212 is coupled to the surface of the steel plate 200 with an arbitrary length so that the cement paste can be uniformly pressed into the ground during the grouting operation. As described above, the connection member such as the nipple P is mounted and connected to the external inflow pipe T.

The reformer 210 is a steel member having a constant thickness and a straight side on one side and is mounted on the surface portion spaced apart from the both ends of the steel plate 200 by two rows at regular intervals in the vertical direction .

The correction material 210 is mounted such that the outer side faces can abut the edges of the H-shaped file 100 flanges 101 located on both sides. That is, the steel plate 200 with the modified product 210 mounted thereon is brought into close contact with the edge of the flange 101 of the H-shaped file 100 by the correction product 210 mounted at both ends when the product 200 is inserted between the H- It is possible to prevent the steel plate 200 from moving left and right (see FIG. 4).

As described above, the shape of the modification product 210 may have various shapes as long as the portion of the H-shaped file 100 located on both sides thereof contacting the flange 101 is a straight line. In an embodiment of the present invention, a rectangular shape is shown as an example.

The modification 210 may be welded to the steel plate 200 or bolted / bolted. This is advantageous in that, as in the above-described case, the modified product 210 and the steel plate 200 are separately prepared at the time of actual construction, and then assembled according to the conditions of the site and used immediately after construction.

Hereinafter, an operation and a method of an embodiment of the present invention will be described.

7, a method of constructing a retaining structure having a steel plate departure-avoiding structure includes assembling a guide guide 110 on an H-shaped file 100, assembling a correction material 210 on a steel plate 200, (S310) of preparing an H-shaped file (100) and a steel sheet (200); inserting an H-shaped file (100) (S330) of inserting the steel plate (200) in the longitudinal direction of the H-shaped pile (100) between the steel sheets (100); And an underground excavation step (S340) of excavating the underground to a certain depth.

When the steps are completed, a step S350 of connecting the external inflow pipe P to the steel plate 200 and performing grouting may be further included.

First, an earth retaining construction process having a steel plate separation preventive structure using a general H-shaped file 100 and a steel plate 200 will be described.

Step S310 of preparing the H-shaped file 100 and the steel plate 200 is a step of assembling the guide member 110 to the H-shaped file 100 and assembling the correction material 210 to the steel plate 200. [

In order to prepare the H-shaped file 100, the H-shaped file 100 in which the guide guide 100 is assembled may be used in advance or may be assembled in the field.

Next, the steel plate 200 to which the correction material 210 is coupled, as in the case of the H-shaped file 100, may be used. Alternatively, the steel plate 200 may be assembled in the field.

The H-type file 100 inserting step (S320) is a step of inserting the H-type file 100 at regular intervals on the paper.

When inserting the H-shaped file 100 into the ground, the gap is adjusted in consideration of the size of the steel plate 200 and the position of the correction object 210 mounted on the steel plate 200.

The step of inserting the steel sheet 200 is a step of inserting the steel sheet 200 into the space between the inserted H-shaped files 100 in the longitudinal direction of the H-shaped file 100.

When the assembled H-shaped file 100 is inserted at regular intervals on the ground in step S320, the steel plate 200 is inserted between the H-shaped files 100 to assemble the H-shaped file 100 and the steel plate 200 (See Fig. 2).

When inserting the steel plate 200 into the underground, it may be directly hit by a hammer, or may be inserted by applying a vibration by using a vibrating hammer or pulling a lower portion of the steel plate 200 by a heavy equipment such as an excavator. Here, a vibrator pile driver refers to a machine that punches or pulls a steel sheet by a vertical vibration force.

When inserting the steel plate 200 between the H-shaped piles 100 and underground, the inserting direction of the steel plate 200 is distorted due to the difference in earth pressure depending on the irregular composition of the ground. Therefore, if the insertion direction of the steel plate 200 is continuously deviated from the direction in which the H-shaped pile 100 is installed, the steel plate 200 is eventually deformed by the earth pressure acting on the steel plate 200, Which is a space formed between the upper and lower flanges 101 of the file 100.

When the steel plate 200 is detached from the H-shaped pile 100 in the earthworks, a gap gradually opens due to the earth pressure, resulting in the collapse of the ground or leakage of water.

However, in order to prevent the steel plate 200 from separating from the H-shaped file 100, when the steel sheet 200 is inserted between the H-shaped files 100, the direction in the space of the H- We must eliminate this twisted space.

In an embodiment of the present invention, the tilting guide 110 is mounted on the H-shaped file 100 to limit the space of the H-shaped file 100 recess 103 to only the thickness of the steel plate 200 Respectively.

4 is a sectional view of the steel sheet 200 inserted into the H-shaped pile 100. The steel sheet 200 is sandwiched between the guide guide 110 and the inside of the side flange 101, And the modified product 210 mounted on the steel plate 200 is fitted to the edge of the flange 101 of both sides of the H-shaped file 100 so that the steel plate 200 can not move left and right Respectively.

As described above, the steel plate 200 is fixed in close contact with the H-shaped piles 100 to prevent leakage, thereby securing a high degree of aberration.

At this time, when the guide 110 is mounted on the H-shaped file 100 and the space of the concave portion 103 of the H-shaped file 100 is limited only by the thickness of the steel plate 200, The steel plate 200 may be caught by the guide 100 and may not be inserted into the steel plate 200 if an error occurs in the vertical direction.

In an embodiment of the present invention, the inclined portion 111 is formed in the guide guide 110 to solve this problem.

5, when the steel plate 200 is sandwiched between the guide 110 and the inside of the side flange 101, even if the insertion position of the steel plate 200 is slightly shifted to the inside or outside, It can be seen that it can be inserted while being slid by the slider 111.

The underground excavation step S340 is a step of excavating the underground at a predetermined depth when the steel sheets as the retaining structures are installed in the above-described step.

The step of connecting the external inflow pipe P to the steel plate 200 by performing the grouting operation S350 may be performed by inserting the nipple P into the tread 211 and the pipe 212 formed on the steel plate 200, And then connecting the external inflow pipe T with the grout pump to uniformly press the cement paste into the ground covered with the steel plate 200 (refer to FIG. 6).

As described above, according to one embodiment of the present invention, the steel plate 200 is inserted between the H-shaped files 100 for the ground seam and the surrounding circumstance during the ground excavation, and the flange 101 of the H- Since the correction member 210 is mounted on the steel plate 200 by mounting the guide 110, the steel plate 200 can be prevented from moving to the left or right or back and forth,

In addition, since the steel plate 200 is closely contacted and joined between the H-shaped files 100 by the guide guide 110 and the modified product 210, water leakage is prevented and the water repellency is improved.

In addition, since the inclined portion 111 is formed on the upper edge of the bent one side of the guide guide 110, the steel plate 200 can be inserted smoothly between the H-shaped piles 100.

In addition, since the guide guide 110 mounted on the H-shaped file 100 can be detachably attached by welding or bolts / nuts, the guide guide 110 can be easily assembled and used immediately.

The steel plate retaining structure having the steel plate departure preventing structure, which is one embodiment of the present invention, is not limited to the construction and operation of the embodiments described above. The above embodiments may be configured so that all or some of the embodiments may be selectively combined to make various modifications.

100: H-type file 110: guide guide
111: slope part 200: steel plate
210: Amendment 211:
212: tube
N: Nut B: Bolt
T: External inlet pipe P: Nipple

Claims

A steel plate retaining structure having a steel plate separation preventing structure,
In the steel plate retaining structure,
An H-shaped file inserted at regular intervals on the ground, and a steel sheet interposed between the H-shaped files,
A guide having a rectangular cross-section on one side of the H-shaped file and having a cross section of 'A'
And a correction member having a predetermined thickness and one side being in the form of a straight line, the plate being mounted on the surface portion spaced apart from the opposite ends of the steel plate by a predetermined distance in a vertical direction, Retaining structure with steel structure.

The method according to claim 1,
The guide guide
Wherein the upper edge of the bent one side is formed with a sloped portion where the end portion is cut out by an oblique line.

The method of claim 2,
The guide guide
Wherein a surface of the two curved surfaces facing the other side flange and the other side of the two side surfaces are in close contact with and bonded to the inside of the one side flange while the gap between the other side flange and the other side flange is spaced by the thickness of the steel plate Steel plate retaining structure with steel plate escape prevention structure.

The method according to claim 1,
The guide guide
Wherein the steel plate retaining structure having a steel plate separation preventive structure is characterized in that it is pre-punched on a surface coupled to the inner side of the one side flange and is fixedly installed by a bolt / nut fastening method when engaged, .

The method according to claim 1,
The modified product may include:
And the outer side surface is mounted so as to abut the edge of the H-shaped pile flange on both sides so that the steel sheet can be prevented from moving to the left and right.

The method according to claim 1,
The modified product may include:
Wherein the steel plate can be joined to the steel plate by welding or bolts / nuts.

The method according to claim 1,
In the steel sheet,
Wherein one or more treads for grouting are formed on the body of the steel plate, or a tube having a predetermined length for grouting on the surface where the steel plate is in contact with the soil is joined in one or more rows. structure.

A method of constructing a steel plate retaining structure having a steel plate separation preventing structure,
The method for constructing the steel plate retaining structure includes:
Preparing a H-shaped file and a steel plate by assembling a guide guide to an H-shaped file and assembling a correction product to the steel plate;
An H-type file inserting step of inserting the H-type file at regular intervals on the ground;
A steel plate inserting step of inserting the steel plate in the longitudinal direction of the H-shaped file between the inserted H-shaped files; And
And an underground excavating step of excavating the underground excavation to a predetermined depth.

The method of claim 8,
A method of constructing a steel plate securing structure having the steel plate departure-
The method of claim 1, further comprising the step of grouting the steel plate by connecting a tube to the steel plate.

The method of claim 8,
In the steel plate inserting step,
Wherein the steel plate is inserted into the underground by applying a vibration to the steel plate by pulling a lower portion of the steel plate with a heavy equipment machine or using a vibro hammer to insert the steel plate into the underground.

The method of claim 8,
The guide guide
Wherein at least one side of the H-shaped pile is mounted on one side of the flange, and each of the bent surfaces has a rectangular shape in cross section.

The method of claim 8,
The modified product may include:
Wherein a plurality of steel plates are installed on the surface portion spaced apart from the both ends of the steel plate by a predetermined distance in the vertical direction and have a predetermined thickness and one side is formed as a straight line. Construction method of structure.