KR102637150B1 - Thumb pile using guide bracket and support bracket and construction method for retaining temporary facility using the same - Google Patents

Abstract

The present invention installs a guide bracket on the upper part of the rear side of the pile, installs a support bracket on the lower part, fixes a tension member to the guide bracket and support bracket, and then tensions the tension member at the front of the excavation, so that it is separate from the excavation side. Even without installing supporting materials, there is no risk of the pile falling or collapsing into the excavation space, and even in a narrow space in the city, it is not only independent of the narrowness of the ground site on the back side of the pile, but also a temporary earth retaining facility can be installed regardless of before or after excavation. The purpose is to provide thumb piles using guide brackets and support brackets and a construction method for temporary earth retaining facilities using them.
A thumb pile using a guide bracket and a support bracket according to the present invention to achieve the above object includes a pile having a predetermined shape; an upper guide bracket coupled to an upper end of one side of the pile; a lower support bracket coupled to the lower part of one side of the pile; It is characterized by being composed of a tension member whose one end is fixed to the lower support bracket and the other end extends through the upper guide bracket.
In addition, the method of constructing temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention to achieve the above-described object involves forming a hole by drilling the ground at regular intervals and having a predetermined diameter and depth. ; Inserting a thumb pile using a guide bracket and a support bracket into the drilling hole with the thumb pile facing the back of the excavation; It is characterized by the step of tensioning the tension member installed on the thumb pile using the guide bracket and support bracket at the front of the excavation with a predetermined force.

Description

Thumb pile using guide bracket and support bracket and temporary earth retaining facility construction method using the same {Thumb pile using guide bracket and support bracket and construction method for retaining temporary facility using the same}

The present invention relates to a thumb pile using a guide bracket and a support bracket and a method of constructing a temporary earth retaining facility using the same. In particular, a guide bracket is installed at the upper end of the rear side of the pile, a support bracket is installed at the lower part of the pile, and the guide bracket is installed. After fixing the tension member to the support bracket and tensioning the tension member at the front of the excavation, not only is there no risk of the pile falling or collapsing into the excavation space even without installing a separate support material on the excavation side, but also it can be used in narrow spaces in urban areas. This relates to thumb piles using guide brackets and support brackets, which enable excavation work to be done safely and easily even in space, at low cost, and a method of constructing temporary earth retaining facilities using the same.

For the construction of underground structures, earth retaining structures are installed surrounding the work area, which include thumb pile earth walls, diaphragm walls, sheet piles, and C.I.P. Various construction methods are being applied.

This conventional earth retaining method has the following problems.

When carrying out excavation work, a retaining wall alone cannot resist the earth pressure of the background soil, so a large number of support materials (Strut, Earth Anchor, Raker, etc.) must be used to reinforce it.

However, the above-mentioned earth anchor method involves anchoring an earth anchor by digging into the adjacent site more than 10m, but when the use of the adjacent site is restricted, the strut or raker method has no choice but to be applied every 2.5m of excavation height, which is difficult to achieve due to economic feasibility and construction conditions. There is a huge disadvantage.

In addition, the conventional method using braces and anchor holes tightly installs braces at intervals of 2 to 3 m in the vertical direction of the excavation, which narrows the work space and causes inconvenience in the use of heavy equipment. In addition, when anchors are used, it is difficult to use heavy equipment in urban excavations. There are problems causing significant difficulties in construction due to invasion of private land, damage to existing structures, and inflow of nearby groundwater.

Registered Patent 10-1498711

Accordingly, the present invention was devised to solve the problems described above. A guide bracket is installed at the upper end of the rear side of the pile, a support bracket is installed at the bottom, and a tension member is fixed to the guide bracket and support bracket. Afterwards, by tensioning the tension member at the front of the excavation, there is no fear of the pile falling or collapsing into the excavation space even without installing a separate support material on the excavation side, and even in a narrow space in the city center, the pile can be maintained in the ground on the back side of the pile. The purpose is to provide thumb piles using guide brackets and support brackets, and a method of constructing temporary earth retaining facilities using the same, which allows construction of temporary earth retaining facilities regardless of the mine width, as well as before and after excavation.

A thumb pile using a guide bracket and support bracket according to the present invention to achieve the above object includes a pile having a predetermined shape; an upper guide bracket coupled to an upper end of one side of the pile; a lower support bracket coupled to the lower part of one side of the pile; It is characterized by being composed of a tension member whose one end is fixed to the lower support bracket and the other end extends through the upper guide bracket.

In addition, the method of constructing temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention to achieve the above-described object involves forming a hole by drilling the ground at regular intervals and having a predetermined diameter and depth. ; Inserting a thumb pile using a guide bracket and a support bracket into the drilling hole with the thumb pile facing the back of the excavation; It is characterized by the step of tensioning the tension member installed on the thumb pile using the guide bracket and support bracket with a predetermined force at the front of the excavation.

As described above, the thumb pile using the guide bracket and support bracket according to the present invention and the temporary earth retaining facility construction method using the same have the following effects.

First, the present invention installs an upper guide bracket on the upper end of the pile, installs a lower support bracket on the lower part of the pile, fixes the tension member to the guide bracket and support bracket, and then tensions the tension member at the front of the excavation, There is an advantage in that there is no risk of the pile falling or collapsing into the excavation space without installing a separate support material on the excavation side.

Second, the present invention has the effect of constructing a temporary earth retaining facility regardless of the narrowness of the ground site on the back side of the pile even in a narrow space in the city center, regardless of before or after excavation.

Third, the present invention has the advantage of minimizing the installation of support materials or strips on the excavation side, which not only makes it easier to secure work space but also improves workability.

Figure 1 is a perspective view showing a thumb pile using a guide bracket and support bracket according to the present invention;
Figure 2 is a front view showing a thumb pile using a guide bracket and support bracket according to the present invention;
Figure 3 is a plan view showing a thumb pile using a guide bracket and support bracket according to the present invention;
Figure 4 is a cross-sectional view showing a thumb pile using a guide bracket and support bracket according to the present invention;
Figure 5 is an exploded perspective view showing a thumb pile using a guide bracket and support bracket according to the present invention;
Figure 6 is a perspective view showing the upper guide bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 7 is a front view showing the upper guide bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 8 is a plan view showing the upper guide bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 9 is a side view showing the upper guide bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 10 is a perspective view showing the lower support bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 11 is a front view showing the lower support bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 12 is a plan view showing the lower support bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 13 is a side view showing the lower support bracket of the thumb pile using the guide bracket and support bracket according to the present invention;
Figure 14 is a construction diagram showing the state of constructing a temporary earth retaining facility using thumb piles using a guide bracket and a support bracket according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the attached illustration drawings.

[Thumb pile using guide bracket and support bracket]

Figure 1 is a perspective view showing a thumb pile using a guide bracket and a support bracket according to the present invention, Figure 2 is a front view showing a thumb pile using a guide bracket and a support bracket according to the present invention, and Figure 3 is a view showing a thumb pile using a guide bracket and a support bracket according to the present invention. It is a plan view showing a thumb pile using a guide bracket and a support bracket according to the present invention, Figure 4 is a cross-sectional view showing a thumb pile using a guide bracket and a support bracket according to the present invention, and Figure 5 is a guide bracket and a support bracket according to the present invention. This is an exploded perspective view showing the thumb pile used.

As shown in these drawings, the thumb pile (P) using a guide bracket and a support bracket according to the present invention includes a pile (100) having a predetermined shape; An upper guide bracket 200 coupled to one upper end of the pile 100; A lower support bracket 300 coupled to the lower part of one side of the pile 100; It is composed of a tension member 400, one end of which is fixed to the lower support bracket 300, and the other end extending through the upper guide bracket 200.

In other words, the thumb pile (P) using the guide bracket and support bracket according to the present invention is a structure formed by organically combining a pile (100), an upper guide bracket (200), a lower guide bracket (300), and a tension member (400). .

Here, the pile 100 is composed of any one of section steel, H-beam steel, I-beam, U-beam, A-beam, steel pipe, hollow pipe, round steel pipe, square pipe, and section steel.

In particular, the section steel is a general term for long steel pre-formed into a certain cross-sectional shape such as H-type or L-type. It is mainly used in civil engineering, architectural columns or beams, foundation piles and mechanical products, etc. There are various section steels depending on the shape of the cross section. , it is used according to epidemiological rationality and purpose of use.

In addition, the H-beam steel is a section steel with an H-shaped cross section that is widely used in the framing of large structures such as buildings and ships or in civil engineering work, and is made by hot rolling.

Here, the part corresponding to the horizontal bar in the center of the H-beam is called the web, and the parts corresponding to the vertical bars on both sides are called the upper and lower flanges. The upper and lower flanges of 300 mm or less are called junior size, and those of 300 mm or more are called senior size. .

Also, there is an I-beam with a cross section similar to the H-beam. In the H-beam, the thickness of the upper and lower flanges is constant all the way to the end, the ends of the upper and lower flanges are not rounded, and in the I-beam, the width is smaller than the height. The difference in H-beam steel is that the width is the same as the height.

The wider one is called wide flange H-beam steel, and its overall cross-section is square, making it easy to use as a building pillar.

The specifications are specified in KS D 3503, and the shape and dimensions are specified in KS D 3051.

Meanwhile, a steel pipe is a construction material made of an alloy of iron and carbon, meaning that the cross section is a circular pipe or a hollow rectangular pipe. It should be noted that square pipes and pipes of various shapes can be used as needed.

In particular, it should be noted that no special technical requirements are required when using a circular pipe as a variety of pipes such as square pipes and closed bend pipes.

In addition, the upper guide bracket 200 includes a support plate 210 having a certain thickness and width, as shown in FIGS. 6 to 9; a side plate 220 extending at right angles from both ends of the support plate 210; a cover plate 230 welded to a certain section of the upper part of the side plate 220; A bottom plate 240 welded to the bottom of the side plate 220; It consists of a semicircular fixed pulley 250 coupled between the upper surface of the bottom plate 240 and the side plate 220.

That is, a support bracket is formed on the upper guide bracket 200 by welding a plurality of steel plates 210, 220, 230, and 240 longitudinally and horizontally, and a semicircular fixing pulley 250 is installed on the support bracket.

Here, in the upper guide bracket 200, a through hole is formed in the support plate 210 for inserting the tension member 400 fixed to the lower support bracket 300, and the tension member 400 inserted into the through hole is It is caught on the semicircular fixing pulley 250 and the angle is changed by the semicircular fixing pulley 250 to extend horizontally toward the top of the pile 100.

And, as shown in FIGS. 10 to 13, the lower support bracket 300 includes a horizontal plate 310 formed in a semicircular shape with a certain thickness and width; a vertical plate 320 formed by bending at a right angle from an end of the horizontal plate 310 and having an arc-shaped upper portion; an inclined plate 330 disposed inclined between the horizontal plate 310 and the vertical plate 320 and having a triangular shape; It is composed of a plurality of fixing holes 340 formed in the vertical plate 320 to have a constant diameter.

Here, the vertical plate 320 is formed to be thicker than the horizontal plate 310 and the inclined plate 330.

The reason why the vertical plate 320 is formed thicker in this way is to form different thicknesses to efficiently tension the tension member 400 installed in the fixing hole 340 of the upper guide bracket 200 and the lower support bracket 300. And the horizontal plate 310 and the inclined plate 330 are formed to have the same thickness.

Meanwhile, when the inclined plate 330 is attached to the horizontal plate 310, a plurality of inclined plates 330 are installed inside the horizontal plate 310, and a inclined plate 330 is installed outside the inclined plate 330.

The reason for changing the size of the swash plate 330 in this way is to increase the size of the swash plate 330 in the area that receives a lot of force when the tension member 400 is tensioned, and to increase the size of the swash plate 330 in the area that receives less force when the tension member 400 is tensioned. This is to prevent unnecessary waste of steel by reducing the size of 330).

Meanwhile, when installing the upper guide bracket 200 and the lower support bracket 300 on the thumb pile 100, the upper guide bracket 200 is placed on the top of the thumb pile 100, and the pile 100 is placed in the same position as the upper guide bracket 200. Install the lower support bracket (300) at the lower part of the vertical line.

In addition, the lower support bracket 300 is installed on the thumb peg 100 while being maintained at a certain distance vertically downward from the upper guide bracket 200.

Here, it is structurally advantageous to install the lower support bracket 300 in a position adjacent to the lowermost end of the thumb peg 100, which is opposite to the upper guide bracket 200, with the thumb peg 100 positioned vertically.

Additionally, if the overall length between the upper guide bracket 200 and the lower support bracket 300 becomes too long, an intermediate spacer may be installed on the thumb peg 100 at a predetermined position.

Meanwhile, it should be noted that the tension member 400 may be composed of a high-strength structural steel bar or steel wire.

In addition, the tension member 400 is fixedly installed on the upper guide bracket 200 installed on the upper part of the pile 100 and the lower support bracket 200 installed on the lower part of the pile 100.

The thumb pile (P) using the guide bracket and support bracket according to the present invention configured as described above includes an upper guide bracket (200) installed on the upper part of the pile (100), and a lower support bracket (300) installed on the lower part. After installing and fixing the tension member 400 on the upper guide bracket 200 with the lower support bracket 300, the tension member 400 is tensioned with a predetermined force at the front of the excavation, thereby separating the tension member 400 from the excavation side. Not only is there no risk of the pile 100 falling or collapsing into the excavation space even without installing a supporting material, but it also has the effect of making excavation work safe and easy at low cost even in a narrow space in the city center.

[Construction method for temporary earth retaining facilities]

Figure 14 is a construction diagram showing the construction of temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention.

As shown in this figure, the construction method of temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention involves drilling the ground (G) at regular intervals and drilling holes (H) to a predetermined diameter and depth. ) forming a; Inserting a thumb pile (P) using a guide bracket and a support bracket into the drilling hole (H) with the thumb pile (P) facing toward the back of the excavation; It consists of the step of tensioning the tension member installed on the thumb pile (P) using the guide bracket and support bracket with a predetermined force at the front of the excavation.

That is, the method of constructing temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention involves excavating the ground (G) using an excavator such as an auger to form a drilling hole, and forming a drilling hole in the drilling hole with a predetermined shape. A pile (100) and; An upper guide bracket (200) coupled to one upper end of the pile (100); A lower support bracket 300 coupled to the lower part of one side of the pile 100; It is composed of a tension member 400, one end of which is fixed to the lower support bracket 300 and the other end extending through the upper guide bracket 200, and the pile 100 is composed of either a section steel or a steel pipe, The upper guide bracket 200 includes a support plate 210 having a certain thickness and width; a side plate 220 extending at right angles from both ends of the support plate 210; a cover plate 230 welded to a certain section of the upper part of the side plate 220; A bottom plate 240 welded to the bottom of the side plate 220; It consists of a semicircular fixing pulley 250 coupled between the upper surface of the bottom plate 240 and the side plate 220, and the lower support bracket 300 is a horizontal plate 310 formed in a semicircular shape with a certain thickness and width. )class; a vertical plate 320 formed by bending at a right angle from an end of the horizontal plate 310 and having an arc-shaped upper portion; an inclined plate 330 disposed inclined between the horizontal plate 310 and the vertical plate 320 and having a triangular shape; It is constructed by inserting a thumb pile (P) using a guide bracket and support bracket consisting of a plurality of fixing holes 340 drilled to have a certain diameter into the vertical plate 320 to a predetermined depth.

Next, the tension members 400 installed on the lower support bracket and the upper guide bracket are anchored to the anchorage of the pile 100 while applying tension force.

That is, the tension member fixed to the lower support bracket installed at the lower part of the pile 100 is vertically tensioned and at the same time gradually receives tension force upward, and ultimately passes through the semicircular fixing pulley 250 of the upper guide bracket installed at the upper end of the pile. The direction of the tension member is changed from vertical to horizontal to the front of the excavation by the semicircular fixing pulley.

As described above, the tension force is applied when the tension direction of the tension member is changed from vertical to horizontal by the upper guide bracket, so that the pile 100 is maintained regardless of the narrowness of the ground (G) site on the back side of the pile 100. By applying a horizontal force to the head 110, it is possible to prevent the pile 100 from falling into the excavation area of the pile 100.

The method of constructing temporary earth retaining facilities using thumb piles using guide brackets and support brackets according to the present invention, which consists of the steps described above, involves drilling the ground (G) to form a hole, and installing a guide bracket and a support bracket in the hole. By inserting the thumb pile (P) using the guide bracket and the support bracket, tensioning the tension member 400 fixed to the upper guide bracket and the lower support bracket respectively installed at the upper and lower parts of the thumb pile (P) using the guide bracket and support bracket with a certain tension force. , Even without installing a separate support material on the excavation side, there is no risk of the pile 100 falling or collapsing into the excavation space, and excavation work can be done safely and easily at low cost even in a narrow space in the city center. .

In addition, since the installation of support materials or strips on the excavation side can be minimized, it is not only easy to secure work space but also improves workability.

The preferred embodiments described in the detailed description of the present invention are illustrative and not limiting, and the scope of the present invention is indicated by the appended claims, and all modifications that fall within the meaning of the claims are included in the present invention. It is included.

100: pile 120: web
130: Flange
200: upper guide bracket 210: support plate
220: side plate 230: cover plate
240: Bottom plate 250: Semicircular fixed pulley
300: lower support bracket 310: horizontal plate
320: vertical plate 330: inclined plate
340: Fixing hole 400: Tension member
G: ground
P: Thumb pile using guide bracket and support bracket

Claims (9)

A pile (100) made of a predetermined shape;
An upper guide bracket 200 coupled to one upper end of the pile 100;
A lower support bracket 300 coupled to the lower part of one side of the pile 100;
It consists of a tension member (400) whose one end is fixed to the lower support bracket (300) and the other end of which extends through the upper guide bracket (200),
The upper guide bracket 200 includes a support plate 210 having a certain thickness and width; a side plate 220 extending at right angles from both ends of the support plate 210; A cover plate 230 welded to a certain section above the side plate 220; A bottom plate 240 welded to the bottom of the side plate 220; A thumb pile using a guide bracket and a support bracket, characterized in that it consists of a semicircular fixing pulley (250) coupled between the upper surface of the bottom plate (240) and the side plate (220). According to paragraph 1,
The pile 100 is a thumb pile using a guide bracket and a support bracket, characterized in that it is composed of either a section steel or a steel pipe. delete According to paragraph 1,
The lower support bracket 300 includes a horizontal plate 310 formed in a semicircular shape with a constant thickness and width; a vertical plate 320 formed by bending at a right angle from an end of the horizontal plate 310 and having an arc-shaped upper portion; an inclined plate 330 disposed inclined between the horizontal plate 310 and the vertical plate 320 and having a triangular shape; A thumb pile using a guide bracket and a support bracket, characterized in that the vertical plate 320 is composed of a plurality of fixing holes 340 perforated to have a constant diameter. Forming a hole (H) by drilling the ground (G) at regular intervals to a predetermined diameter and depth;
Inserting a thumb pile (P) using a guide bracket and a support bracket into the drilling hole (H) with the thumb pile (P) facing toward the back of the excavation;
It consists of tensioning the tension member 400 installed on the thumb pile (P) using the guide bracket and support bracket at the front of the excavation with a predetermined force,
The upper guide bracket 200 includes a support plate 210 having a certain thickness and width; a side plate 220 extending at right angles from both ends of the support plate 210; A cover plate 230 welded to a certain section above the side plate 220; A bottom plate 240 welded to the bottom of the side plate 220; A method of constructing a temporary earth retaining facility using thumb piles using a guide bracket and a support bracket, characterized in that it consists of a semicircular fixed pulley (250) coupled between the upper surface of the bottom plate (240) and the side plate (220). According to clause 5,
The thumb pile (P) using the guide bracket and support bracket includes a pile (100) having a predetermined shape; An upper guide bracket 200 coupled to one upper end of the pile 100; A lower support bracket 300 coupled to the lower part of one side of the pile 100; A method of constructing a temporary earth retaining facility using a displacement-controlled guide bracket, characterized in that it consists of a tension member (400) whose one end is fixed to the lower support bracket (300) and the other end of which extends through the upper guide bracket (200). According to clause 6,
The pile 100 is a temporary earth retaining facility construction method using a thumb pile using a guide bracket and a support bracket, characterized in that it is composed of either a section steel or a steel pipe. delete According to clause 6,
The lower support bracket 300 includes a horizontal plate 310 formed in a semicircular shape with a constant thickness and width; a vertical plate 320 formed by bending at a right angle from an end of the horizontal plate 310 and having an arc-shaped upper portion; an inclined plate 330 disposed inclined between the horizontal plate 310 and the vertical plate 320 and having a triangular shape; A method of constructing a temporary earth retaining facility using thumb piles using a guide bracket and a support bracket, characterized in that the vertical plate 320 is composed of a plurality of fixing holes 340 perforated to have a constant diameter.

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