KR102382845B1 - Thrust pile with prestress and self-supporting type pile construction using it - Google Patents

Abstract

The present invention installs a fixture on the H-beam, installs a tension member in an inclined manner in the fixture, and introduces a pre-stress beam self-supporting method that supports earth pressure by applying a tension to the tension member. Thumb piles introduced with inclined prestress to reduce construction costs and improve workability by reducing the construction period and reducing the amount of steel used by increasing the efficiency of equipment work by securing There is a purpose.
The thumb stake to which the inclined prestress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the flange at a predetermined position by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages.
In addition, the thumb stake to which the inclined prestress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the uppermost end of one flange of the H-beam and the lower end of the other flange of the H-beam to face each other by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages.
And, in accordance with the present invention for achieving the above object, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced comprises the steps of manufacturing the thumb pile to which the inclined prestress is introduced (S 1); Forming a perforation hole by drilling at a predetermined interval in the ground and having a predetermined diameter and depth (S2); The step of driving a thumb peg into which the inclined pre-stress is introduced into the drilling hole (S 3); The step of filling sand into the thumb stakes into which the driven inclined prestress is introduced (S 4); Tensing the tension member installed on the thumb pile to which the inclined pre-stress is introduced (S 5); It is characterized in that the excavation proceeds to the front part of the thumb pile to which the inclined prestress is introduced and the step (S6) of installing the earth plate at the same time.

Description

Thrust pile with prestress and self-supporting type pile construction using it}

The present invention relates to a thumb pile to which inclined prestress is introduced and a method for constructing a self-supporting temporary retaining wall using the same. In particular, in order to reduce the bending stress occurring in a free-standing retaining wall, a tension force is applied to the tension member in advance and generated by the back earth pressure It relates to a thumb pile to which inclined prestress is introduced to reduce bending moment and horizontal displacement and a method for constructing a self-supporting temporary retaining wall using the same.

Currently, in general, the earth anchor method is widely used to maintain the retaining wall during deep excavation of the ground for the construction of underground structures.

Here, in the above-mentioned earth anchor method, the earth anchor is settled by moving the adjacent site more than 10M, but if the use of the adjacent site is limited, a strut or raker method is applied every 2.5m of the excavation height. There is a significant disadvantage in terms of economic feasibility and construction conditions.

In addition, the conventional construction method using braces and anchors installs braces at intervals of 2 to 3m in the vertical direction of the excavation, thereby causing inconvenience in using heavy equipment due to a narrow work space. There is a problem that intrusion, damage to existing structures, and inflow of nearby groundwater cause considerable difficulties in construction.

Registered Patent 10-1609805 (Registration Date: March 31, 2016)

Accordingly, the present invention has been devised to solve the above-described problems, and a prestress beam that supports earth pressure by installing an anchorage in the H-beam, installing a tension member in an inclined manner in the anchorage, and applying a tension to the tension member By introducing the independent construction method, a large work space is secured by significantly reducing the number of braces installed, shortening the construction period by increasing the efficiency of equipment work, and reducing the amount of steel used, thereby reducing construction costs and improving workability. The purpose is to provide an introduced thumb pile and a method for constructing a self-supporting temporary retaining wall using the same.

The thumb stake to which the inclined prestress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the flange at a predetermined position by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages.

In addition, the thumb stake to which the inclined pre-stress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the uppermost end of one flange of the H-beam and the lower end of the other flange of the H-beam to face each other by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages.

And, in accordance with the present invention for achieving the above object, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced includes the steps of manufacturing the thumb pile to which the inclined prestress is introduced (S 1); Forming a perforation hole by drilling at a predetermined interval in the ground and having a predetermined diameter and depth (S2); The step of driving a thumb peg into which the inclined pre-stress is introduced into the drilling hole (S 3); The step of filling sand into the thumb stakes into which the driven inclined prestress is introduced (S 4); Tensing the tension member installed on the thumb pile to which the inclined pre-stress is introduced (S 5); It is characterized in that it consists of a step (S6) of excavating the front part of the thumb pile to which the inclined prestress is introduced and installing the earth plate at the same time.

As described above, the thumb pile to which the inclined prestress is introduced and the self-standing temporary retaining method using the same according to the present invention have the following effects.

First, according to the present invention, when it is necessary to shorten the construction period by securing a working space, when it is difficult to support with braces or anchors in a building or civil structure, when it is difficult to construct an anchor due to invasion of private land or an underground facility, damage caused by anchor construction is reduced. In case of concern, there is an advantage that can be applied when the efficiency of work is significantly reduced due to braces, and when other shortening of the period and reduction of construction costs are required.

Second, the present invention can reduce the installation cost and the period of time by 20-30% or more by omitting the support material installation process and smoothly proceeding with the excavation work in the conventional method.

In particular, it is possible to improve economic feasibility due to a reduction in the amount of steel compared to the conventional general construction method, and it is possible to minimize interference during the construction of the main body structure by the unsupported construction method.

Third, in the present invention, stability is ensured by the displacement forced suppression method when displacement continues.

That is, the conventional method is dangerous due to shear failure during failure, but in the present invention, it is possible to compensate for the continuous occurrence of displacement, and to maximize stability by recovering displacement and offsetting the load due to prestress.

1 is a conceptual diagram showing a thumb pile to which inclined pre-stress according to the present invention is introduced;
Figure 2 is a perspective view 1 showing a thumb pile to which the inclined pre-stress according to the present invention is introduced;
Figure 3 is a front view 1 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
Figure 4 is a perspective view 1 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
5 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention;
6 is a conceptual diagram showing a thumb peg to which the inclined pre-stress according to the present invention is introduced;
7 is a perspective view 2 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
Figure 8 is a front view 2 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
Figure 9 is a perspective view 2 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
10 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which inclined prestress is introduced according to the present invention;
11 is a conceptual diagram 3 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
12 is a perspective view 3 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
13 is a front view 3 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
14 is a perspective view 3 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
15 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined pre-stress according to the present invention is introduced;
16 is a conceptual diagram 4 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
17 is a perspective view 4 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
18 is a front view 4 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
19 is a perspective view 4 showing the anchorage of the thumb stake to which the inclined pre-stress according to the present invention is introduced;
20 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention;
21 is a conceptual diagram 5 showing a thumb stake to which the inclined prestress according to the present invention is introduced;
22 is a perspective view 5 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
23 is a front view 5 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
24 is a perspective view 5 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
25 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention;
26 is a conceptual diagram 6 showing a thumb pile to which the inclined prestress is introduced according to the present invention;
27 is a perspective view 6 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
28 is a front view 6 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
29 is a perspective view 6 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
30 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention;
31 is a conceptual diagram 7 showing a thumb peg to which an inclined pre-stress is introduced according to the present invention;
32 is a perspective view 7 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
33 is a front view 7 showing a thumb stake to which the inclined pre-stress according to the present invention is introduced;
34 is a perspective view 7 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
35 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention;
Figure 36 is a conceptual diagram showing a thumb peg to which the inclined pre-stress according to the present invention is introduced 8,
37 is a perspective view 8 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
38 is a front view 8 showing a thumb stake to which an inclined pre-stress according to the present invention is introduced;
Figure 39 is a perspective view 8 showing the anchorage of the thumb pile to which the inclined pre-stress according to the present invention is introduced;
40 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention.

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

[Example 1]

1 is a conceptual view showing a thumb pile to which inclined prestress is introduced according to the present invention 1, FIG. 2 is a perspective view showing a thumb pile to which inclined prestress is introduced according to the present invention 1, FIG. 3 is a slope according to the present invention A front view 1 showing a thumb pile to which the expression prestress is introduced, FIG. 4 is a perspective view 1 showing the anchorage of the thumb pile to which the inclined prestress is introduced according to the present invention.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

The H-beam 100 is a H-shaped cross-section widely used for framing or civil engineering works of large structures such as buildings and ships, and is made by hot rolling.

The part corresponding to the horizontal bar in the center of the H-beam 100 is called the web 120 , and the part corresponding to the vertical bar on both sides is called the flange 110 .

The flange 110 is referred to as a junior size of 300 mm or less, and a senior size of 300 mm or more.

There is an I-beam of a similar cross-section. In the H-beam 100, the thickness of the flange 110 is constant to the end, the end of the flange 110 is not round, and in the I-beam, the width is smaller than the height, but the H-beam ( 100) differs in that some have the same dimension as the width.

The wide one is called the wide flange H-beam 100, and it is easy to use as a pillar of a building with a square cross-section as a whole.

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

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b have a rectangular horizontal plate 210 having a constant thickness and width. )class; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It is composed of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210 .

That is, the upper anchoring hole 200a and the lower anchoring hole 200b are members in which the horizontal plate 210, the vertical plate 220, and the anchoring hole 230 are organically coupled.

On the other hand, when the upper fixture 200a is installed on the flange 110 of the H-beam 100, the vertical plate 220 of the upper fixture 200a is on the same vertical line as the top end of the flange 110 of the H-beam 100. are installed to match.

In addition, the lower fixture 200b has a vertical plate 220 of the lower fixture 200b on the same vertical line at the lowermost end of the flange 110 of the other side of the H-beam 100 opposite to the upper fixture 200a.

As such, the reason for installing the lower anchorage 200b at the lowermost end of the flange 110 on the other side of the H-beam 100, which is a position opposite to the upper anchorage 200a, is structurally advantageous.

In particular, based on the upper fixture 200a installed at the uppermost end of the flange 110, the lower fixture 200b is positioned at the lowermost end of the flange 110 on the other side in the same arrangement as the upper fixture 200a or in a different arrangement Since it can also be arranged as a bar, it is to be noted that it is not limited to a specific arrangement shape and can be arranged in various forms.

In addition, if the overall length between the upper anchoring hole (200a) and the lower anchoring hole (200b) becomes too long, it is revealed that the intermediate spacer may be installed at a predetermined position of the web 120 of the H-beam 100 .

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

In particular, as the PC steel, a PC steel wire, a deformed PC steel wire, a PC steel wire, a PC steel bar, a deformed PC steel bar, and other PC steels are used depending on the diameter or shape.

Here, the PC steel wire means a circular steel wire with a diameter of about 2.9 to 9 mm.

In addition, as the PC stranded wire, two stranded wires (S strand) twisted in a twist shape and 7 stranded wire made by twisting 6 strands around one strand into an S strand are often used.

And, the PC steel bar has a diameter of about 9.2 to 32mm, and although it has lower strength than PC steel wire or PC steel wire, it has the advantage that it can be easily fixed by machining the ends or thread rolling, and has more relaxation than PC steel wire or PC steel wire. There is a small advantage.

On the other hand, since the diameter is large, the rate of deterioration of the quality of the part is large when bending is performed.

In particular, it should be checked whether the quality of the iron-making or screw-rolled parts can be sufficiently guaranteed.

In addition, if the PC steel rod and the fixing surface do not form a right angle in the anchorage 200 or the PC steel rod connected by the connection device does not form a straight line, local bending acts on the PC steel rod to prevent stress corrosion or delayed failure of the PC steel rod. There is a risk of breaking it later.

Therefore, it is preferable to use a PC steel bar having high elongation and high toughness as much as possible.

It should be noted that it can also be constructed of high-strength structural tension members.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

5 is an exemplary view 1 showing a self-supporting temporary retainer using a thumb stake to which inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a horizontal plate 210 made of a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It consists of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210, and when the upper fixing hole 200a is installed on the H-beam 100, the uppermost flange 110 of the H-beam 100 The vertical plate 220 of the upper fixture 200a is installed to coincide with the same vertical line as, and the lower fixture 200b is maintained at a certain distance downward from the upper fixture 200a of the H-beam 100. It is installed at the lower end of the other side flange 110, and if the distance between the upper anchorage 200a and the lower anchorage 200b becomes too long, an intermediate spacer can be installed at a predetermined position of the H-beam 100, and the tension member ( 400) manufactures a thumb pile (P) to which an inclined prestress is introduced composed of a high-strength structural tension member, and sets the target ground (G) to install the thumb pile (P) to which the inclined prestress is introduced, at a predetermined interval, After drilling to a diameter and depth to form a drilling hole (H), and driving a thumb pile (P) to which inclined prestress is introduced into the drilling hole (H), a tension member installed in the H-beam 100 ( 400) is tensioned by a predetermined force, and an earth plate (not shown) is installed while repeatedly excavating the front part of the H-beam 100 .

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 2]

6 is a conceptual diagram showing a thumb stake to which inclined prestress is introduced according to the present invention 2, FIG. 7 is a perspective view showing a thumb stake to which an inclined prestress according to the present invention is introduced, and FIG. 8 is a slope according to the present invention A front view showing a thumb pile to which the type prestress is introduced, Figure 9 is a perspective view 2 showing the anchorage of the thumb pile to which the inclined prestress is introduced according to the present invention.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b are a first horizontal plate formed in a rectangular shape having a constant thickness and width. (240) and; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter.

That is, the upper fixing hole 200a and the lower fixing hole 200b are members in which the first horizontal plate 240 , the connecting plate 250 , the second horizontal plate 260 and the fixing hole 270 are organically coupled.

On the other hand, when installing each of the upper fixture 200a on the flange 110 of the H-beam 100, the first of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of the H-beam 100 The horizontal plate 240 and the second horizontal plate 260 are installed in a form to surround the left flange 110, and the upper fixing hole 200a is formed on the same vertical line as the upper end of the right flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the flange 110 on one side.

In addition, the lower anchorage 200b has the first horizontal plate 240 and the first horizontal plate 240 of the lower anchorage 200b on the same vertical line as the bottom end of the flange 110 of the other side of the H-beam 100 opposite to the upper anchorage 200a. 2 horizontal plate 260 is installed in a form surrounding the left flange 110, the first horizontal plate 240 of the lower fixing port 200b on the same vertical line as the lower end of the right flange 110 of the H-beam 100, and The second horizontal plate 260 is installed to surround one side of the flange 110 .

As such, the reason for installing the lower anchorage 200b at the lowermost end of the flange 110 on the other side of the H-beam 100, which is a position opposite to the upper anchorage 200a, is structurally advantageous.

In particular, based on the upper anchoring hole 200a installed at the uppermost end of the one side flange 110, the lower anchorage hole 200b is positioned at the lowermost end of the flange 110 on the other side to have the same arrangement as the upper anchorage hole 200a.

In addition, if the overall length between the upper anchoring hole (200a) and the lower anchoring hole (200b) becomes too long, it is revealed that the intermediate spacer may be installed at a predetermined position of the web 120 of the H-beam 100 .

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

10 is an exemplary view 2 showing a self-supporting temporary retainer using a thumb stake to which the inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a first horizontal plate 240 made of a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 is composed of a plurality of perforated fixing holes 270 to have a constant diameter,

On the other hand, when installing each of the upper fixture 200a on the flange 110 of the H-beam 100, the first of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of the H-beam 100 The horizontal plate 240 and the second horizontal plate 260 are installed in a form to surround the left flange 110, and the upper fixing hole 200a is formed on the same vertical line as the upper end of the right flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed in a shape surrounding the flange 110 on one side, and the lower anchorage hole 200b is the other side flange of the H beam 100 opposite to the upper anchorage hole 200a. The first horizontal plate 240 and the second horizontal plate 260 of the lower fixture 200b are installed in a form surrounding the left flange 110 on the same vertical line as the lowermost end of the H beam 100. The first horizontal plate 240 and the second horizontal plate 260 of the lower fixing port 200b are installed in a form surrounding the flange 110 on one side on the same vertical line as the lower end of the right flange 110, and the upper fixing port 200a ) and the lower anchorage (200b) is too long, an intermediate spacer can be installed at a predetermined position of the H-beam (100), and the tension member (400) is a thumb pile to which an inclined prestress composed of a high-strength structural tension member is introduced. After manufacturing (P), the target ground (G) to install the thumb pile (P) to which the inclined prestress is introduced is spaced at regular intervals and drilled to a predetermined diameter and depth to form a perforation hole (H), After driving the thumb pile P into which the inclined prestress is introduced into the drilling hole H, and then tensioning the tension member 400 installed in the H-beam 100 with a predetermined force, the H-beam 100 ), install the earth plate (not shown) while repeatedly excavating the front part.

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 3]

11 is a conceptual diagram 3 showing a thumb stake to which inclined prestress is introduced according to the present invention, FIG. 12 is a perspective view 3 showing a thumb stake to which an inclined prestress according to the present invention is introduced, and FIG. 13 is a slope according to the present invention A front view 3 showing a thumb pile to which the expression prestress is introduced, FIG. 14 is a perspective view 3 showing the anchorage of the thumb pile to which the inclined prestress is introduced according to the present invention.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a includes a first horizontal plate 240 having a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is formed in a rectangular shape having a predetermined thickness and width. a vertical plate 280; a horizontal plate 290 formed by being bent at a right angle from an end of the vertical plate 280; an inclined plate 300 disposed between the vertical plate 280 and the horizontal plate 290 and formed in a triangular shape; It consists of a plurality of fixing holes 310 perforated to have a constant diameter in the horizontal plate 290 .

On the other hand, when each of the upper anchoring holes 200a is installed on one side flange 110 of the H-beam 100, the first of the upper anchoring holes 200a is on the same vertical line as the upper end of the left flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the left flange 110, and in the same vertical line as the upper end of the right flange 110 of the H-beam 100, the upper fixing hole (200a) of The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the flange 110 on one side.

In addition, the installation of the lower fixture (200b) is maintained at a certain distance from the upper fixture (200a) opposite to the other side flange 110 of the H-beam 100, the vertical plate 280 at the lowermost end by bolting or welding. do.

Here, the reason for installing the vertical plate 280 on the bottom flange 110 of the lower end of the H-beam 100, which is a position opposite to the upper fixture 200a, is structurally advantageous for the lower fixture 200b.

In particular, it is revealed that the lower anchorage 200b can be arranged in various shapes at the lower end of the flange 110 based on the upper anchorage 200a installed at the uppermost end of the flange 110, and is not limited to any specific shape. it is put

In addition, if the overall length between the upper anchoring hole (200a) and the lower anchoring hole (200b) becomes too long, it is revealed that the intermediate spacer may be installed at a predetermined position of the web 120 of the H-beam 100 .

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

15 is an exemplary view 3 illustrating a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed obliquely between the anchorages 200, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a has a constant thickness and width A first horizontal plate 240 made of a rectangular shape having a; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is formed in a rectangular shape having a predetermined thickness and width. a vertical plate 280; a horizontal plate 290 formed by being bent at a right angle from an end of the vertical plate 280; an inclined plate 300 disposed between the vertical plate 280 and the horizontal plate 290 and formed in a triangular shape; It consists of a plurality of fixing holes 310 perforated so as to have a constant diameter in the horizontal plate 290, and when each of the upper fixing holes 200a is installed on one side flange 110 of the H beam 100, the H beam The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of 100 are installed in a form surrounding the left flange 110, and H The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the top end of the right flange 110 of the beam 100 surround the flange 110 on one side. The installation of the lower anchorage 200b is performed by bolting or welding the vertical plate 280 to the lowermost end of the flange 110 of the other side of the H-beam 100 while maintaining a certain distance from the upper anchorage 200a to the opposite side. When the distance between the upper anchorage 200a and the lower anchorage 200b becomes too long, an intermediate spacer may be installed at a predetermined position of the H-beam 100, and the tension member 400 is an inclined prestress composed of a high-strength structural tension member. The thumb pile P is introduced, and the target ground G to which the inclined prestress is introduced is installed at regular intervals, drilled to a predetermined diameter and depth, and a drilling hole (H) After forming, after driving the thumb pile (P) to which the inclined prestress is introduced into the drilling hole (H), the tension member 400 installed in the H-beam 100 is tensioned with a predetermined force, An earth plate (not shown) is installed while repeatedly excavating the front part of the H-beam 100 .

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 4]

16 is a conceptual diagram showing a thumb stake to which inclined prestress according to the present invention is introduced, FIG. 4, a front view showing a thumb pile to which the expression prestress is introduced, FIG. 19 is a perspective view 4 showing the anchorage of the thumb pile to which the inclined prestress is introduced according to the present invention.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the top end of the flange 110 of one side of the H-beam 100 and the lower end of the flange 110 on the other side of the H-beam 100 by bolting or welding to face each other; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b have a rectangular horizontal plate 210 having a constant thickness and width. )class; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It is composed of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210 .

That is, the upper anchoring hole 200a and the lower anchoring hole 200b are members in which the horizontal plate 210, the vertical plate 220, and the anchoring hole 230 are organically coupled.

On the other hand, when the upper fixture 200a is installed on the flange 110 of the H-beam 100, the vertical plate 220 of the upper fixture 200a is on the same vertical line as the top end of the flange 110 of the H-beam 100. are installed to match.

In addition, the lower fixture 200b has a vertical plate 220 of the lower fixture 200b on the same vertical line at the lowermost end of the flange 110 of the other side of the H-beam 100 opposite to the upper fixture 200a.

As such, the reason for installing the lower anchorage 200b at the lowermost end of the flange 110 on the other side of the H-beam 100, which is a position opposite to the upper anchorage 200a, is structurally advantageous.

In particular, based on the upper fixture 200a installed at the uppermost end of the flange 110, the lower fixture 200b is positioned at the lowermost end of the flange 110 on the other side in the same arrangement as the upper fixture 200a or in a different arrangement Since it can also be arranged as a bar, it is to be noted that it is not limited to a specific arrangement shape and can be arranged in various forms.

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

20 is an exemplary view 4 illustrating a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the uppermost and lower ends of the flange 110 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a horizontal plate 210 made of a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It consists of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210, and when the upper fixing hole 200a is installed on the flange 110 of the H beam 100, the H beam 100. The vertical plate 220 of the upper fixture 200a is installed to coincide with the top end of the flange 110 on the same vertical line, and the lower fixture 200b is the other side of the H beam 100 opposite to the upper fixture 200a. A vertical plate 220 of the lower anchorage 200b is installed on the same vertical line at the lower end of the flange 110, and the tension member 400 is a thumb pile (P) to which an inclined prestress composed of a high-strength structural tension member is introduced. After forming a drilling hole (H) by drilling the target ground (G) to install the thumb pile (P) to which the inclined prestress is introduced at a predetermined interval and to a predetermined diameter and depth, the drilling hole (H) ), after driving the thumb pile (P) to which the inclined prestress is introduced, tensioning the tension member 400 installed in the H-beam 100 with a predetermined force, and then excavating the front part of the H-beam 100 Install the earth plate (not shown) while repeating the process.

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) with an inclined pre-stress to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space, and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 5]

21 is a conceptual diagram showing a thumb stake to which inclined prestress is introduced according to the present invention 5, FIG. 22 is a perspective view showing a thumb stake to which an inclined prestress according to the present invention is introduced, and FIG. 23 is a slope according to the present invention A front view showing a thumb pile to which the type prestress is introduced, Figure 24 is a perspective view 5 showing the anchorage of the thumb pile to which the inclined prestress is introduced according to the present invention.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the top end of the flange 110 of one side of the H-beam 100 and the lower end of the flange 110 on the other side of the H-beam 100 by bolting or welding to face each other; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b have a rectangular horizontal plate 210 having a constant thickness and width. )class; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It is composed of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210 .

That is, the upper anchoring hole 200a and the lower anchoring hole 200b are members in which the horizontal plate 210, the vertical plate 220, and the anchoring hole 230 are organically coupled.

On the other hand, when the upper fixture 200a is installed on the flange 110 of the H-beam 100, the vertical plate 220 of the upper fixture 200a is on the same vertical line as the top end of the flange 110 of the H-beam 100. are installed to match.

In addition, the lower fixture 200b has a vertical plate 220 of the lower fixture 200b on the same vertical line at the lowermost end of the flange 110 of the other side of the H-beam 100 opposite to the upper fixture 200a.

As such, the reason for installing the lower anchorage 200b at the lowermost end of the flange 110 on the other side of the H-beam 100, which is a position opposite to the upper anchorage 200a, is structurally advantageous.

In particular, based on the upper fixture 200a installed at the uppermost end of the flange 110, the lower fixture 200b is positioned at the lowermost end of the flange 110 on the other side in the same arrangement as the upper fixture 200a or in a different arrangement Since it can also be arranged as a bar, it is to be noted that it is not limited to a specific arrangement shape and can be arranged in various forms.

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

25 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which the inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the uppermost and lower ends of the flange 110 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a horizontal plate 210 made of a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It consists of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210, and when the upper fixing hole 200a is installed on the flange 110 of the H beam 100, the H beam 100. The vertical plate 220 of the upper fixture 200a is installed to coincide with the top end of the flange 110 on the same vertical line, and the lower fixture 200b is the other side of the H beam 100 opposite to the upper fixture 200a. A vertical plate 220 of the lower anchorage 200b is installed on the same vertical line at the lower end of the flange 110, and the tension member 400 is a thumb pile (P) to which an inclined prestress composed of a high-strength structural tension member is introduced. After forming a drilling hole (H) by drilling the target ground (G) to install the thumb pile (P) to which the inclined prestress is introduced at a predetermined interval and to a predetermined diameter and depth, the drilling hole (H) ), after driving the thumb pile (P) to which the inclined prestress is introduced, tensioning the tension member 400 installed in the H-beam 100 with a predetermined force, and then excavating the front part of the H-beam 100 Repeat the process to install the earth plate (not shown).

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 6]

26 is a conceptual diagram showing a thumb stake to which inclined prestress is introduced according to the present invention 6, FIG. 27 is a perspective view showing a thumb stake to which inclined prestress is introduced according to the present invention 6, FIG. 28 is a slope according to the present invention 6 is a front view showing a thumb stake to which the expression prestress is introduced, and FIG. 29 is a perspective view 6 showing the anchorage of the thumb stake to which the inclined prestress according to the present invention is introduced.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the top end of the flange 110 of one side of the H-beam 100 and the lower end of the flange 110 on the other side of the H-beam 100 by bolting or welding to face each other; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b are a first horizontal plate formed in a rectangular shape having a constant thickness and width. (240) and; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter.

That is, the upper fixing hole 200a and the lower fixing hole 200b are members in which the first horizontal plate 240 , the connecting plate 250 , the second horizontal plate 260 and the fixing hole 270 are organically coupled.

On the other hand, when installing each of the upper fixture 200a on the flange 110 of the H-beam 100, the first of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of the H-beam 100 The horizontal plate 240 and the second horizontal plate 260 are installed in a form to surround the left flange 110, and the upper fixing hole 200a is formed on the same vertical line as the upper end of the right flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the flange 110 on one side.

In addition, the lower anchorage 200b is the first horizontal plate 240 and the second of the lower anchorage 200b on the same vertical line as the lower end of the flange 110 on the other side of the H-beam 100 opposite to the upper anchorage 200a. 2 horizontal plate 260 is installed in a form surrounding the left flange 110, the first horizontal plate 240 of the lower fixing port 200b on the same vertical line as the lower end of the right flange 110 of the H-beam 100, and The second horizontal plate 260 is installed to surround one side of the flange 110 .

As such, the reason for installing the lower anchorage 200b at the lower end of the flange 110 on the other side of the H-beam 100, which is a position opposite to the upper anchorage 200a, is structurally advantageous.

In particular, based on the upper fixture 200a installed at the uppermost end of the one side flange 110, the lower fixture 200b has the same arrangement as the upper fixture 200a at the lower end of the flange 110 on the other side.

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

30 is an exemplary view 2 illustrating a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchorage 200 coupled to the top end of the flange 110 of one side of the H-beam 100 and the lower end of the flange 110 on the other side of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a first horizontal plate 240 made of a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and each of the upper fixing holes 200a is attached to the flange of the H-beam 100 . When installed in 110, the first horizontal plate 240 and the second horizontal plate 260 of the upper fixing port 200a on the same vertical line as the upper end of the left flange 110 of the H-beam 100 is the left flange 110 ), the first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the upper end of the right flange 110 of the H-beam 100 are one side flange ( 110), and the lower anchorage 200b is on the same vertical line as the lower end of the flange 110 on the other side of the H-beam 100 opposite to the upper anchorage 200a, the first of the lower anchorage 200b. A horizontal plate 240 and a second horizontal plate 260 are installed to surround the left flange 110, and the tension member 400 is a thumb pile (P) to which an inclined pre-stress composed of a high-strength structural tension member is introduced. After forming a drilling hole (H) by drilling the target ground (G) to install the thumb pile (P) to which the inclined prestress is introduced at a predetermined interval and to a predetermined diameter and depth, the drilling hole (H) ), after driving the thumb pile (P) to which the inclined prestress is introduced, tensioning the tension member 400 installed in the H-beam 100 with a predetermined force, and then excavating the front part of the H-beam 100 Repeat the process to install the earth plate (not shown).

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 7]

Figure 31 is a conceptual diagram 7 showing a thumb stake to which the inclined prestress according to the present invention is introduced, Figure 32 is a perspective view 7 showing the thumb stake to which the inclined prestress according to the present invention is introduced, Figure 33 is a slope according to the present invention A front view 7 showing a thumb stake to which the expression prestress is introduced, FIG. 34 is a perspective view 7 showing the anchorage of the thumb stake to which the inclined prestress according to the present invention is introduced.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of one flange 110 of the H-beam 100 and the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a includes a first horizontal plate 240 having a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 is composed of a plurality of perforated fixing holes 270 to have a constant diameter,

The lower fixture 200b includes a vertical plate 280 formed in a rectangular shape having a constant thickness and width; a horizontal plate 290 formed by being bent at a right angle from an end of the vertical plate 280; an inclined plate 300 disposed between the vertical plate 280 and the horizontal plate 290 and formed in a triangular shape; It consists of a plurality of fixing holes 310 perforated to have a constant diameter in the horizontal plate 290 .

On the other hand, when each of the upper anchoring holes 200a is installed on one side flange 110 of the H-beam 100, the first of the upper anchoring holes 200a is on the same vertical line as the upper end of the left flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the left flange 110, and in the same vertical line as the upper end of the right flange 110 of the H-beam 100, the upper fixing hole (200a) of The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the flange 110 on one side.

In addition, the installation of the lower fixture (200b) is maintained at a certain distance from the upper fixture (200a) opposite to the other side flange 110 of the H-beam 100, the vertical plate 280 at the lowermost end by bolting or welding. do.

Here, the reason for installing the vertical plate 280 on the bottom flange 110 of the lower end of the H-beam 100, which is a position opposite to the upper fixture 200a, is structurally advantageous for the lower fixture 200b.

In particular, it is revealed that the lower anchorage 200b can be arranged in various shapes at the lower end of the flange 110 based on the upper anchorage 200a installed at the uppermost end of the flange 110, and is not limited to any specific shape. it is put

In addition, if the overall length between the upper anchoring hole (200a) and the lower anchoring hole (200b) becomes too long, it is revealed that the intermediate spacer may be installed at a predetermined position of the web 120 of the H-beam 100 .

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

35 is an exemplary view 7 illustrating a self-supporting temporary retainer using a thumb stake to which an inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of one flange 110 of the H-beam 100 and the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed obliquely between the anchorages 200, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a has a constant thickness and width A first horizontal plate 240 made of a rectangular shape having a; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is formed in a rectangular shape having a predetermined thickness and width. a vertical plate 280; a horizontal plate 290 formed by being bent at a right angle from an end of the vertical plate 280; an inclined plate 300 disposed between the vertical plate 280 and the horizontal plate 290 and formed in a triangular shape; It consists of a plurality of fixing holes 310 perforated so as to have a constant diameter in the horizontal plate 290, and when each of the upper fixing holes 200a is installed on one side flange 110 of the H beam 100, the H beam The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of 100 are installed in a form surrounding the left flange 110, and H The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the top end of the right flange 110 of the beam 100 surround the flange 110 on one side. The tension member 400 is made of a high-strength structural tension member to which the inclined prestress is introduced, and the target ground (G) to which the inclined prestress is introduced is installed at regular intervals. , after drilling to a predetermined diameter and depth to form a perforated hole (H), and then driving a thumb stake (P) to which inclined prestress is introduced into the perforated hole (H), and then to the H-beam ( 100 ) After tensioning the installed tension member 400 with a predetermined force, an earth plate (not shown) is installed while repeatedly excavating the front part of the H-beam 100 .

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

[Example 8]

Figure 36 is a conceptual view showing a thumb stake to which the inclined prestress according to the present invention is introduced 8, Figure 37 is a perspective view showing the thumb stake to which the inclined prestress is introduced according to the present invention 8, Figure 38 is a slope according to the present invention Figure 39 is a perspective view 8 showing the anchorage of the thumb stake to which the inclined pre-stress is introduced according to the present invention 8, a front view showing a thumb stake to which the expression prestress is introduced.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is installed in the H-beam 100 to reduce the bending stress generated in the self-supporting retaining wall, and the anchorage 200 is installed, The tension member 400 is installed at an angle to the anchorage 200, but the tension member 400 is applied in advance to reduce the bending moment and horizontal displacement generated by the back earth pressure of the excavation of the ground. It is a structure.

As shown in these figures, the thumb pile P to which the inclined prestress is introduced according to the present invention is an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of one flange 110 of the H-beam 100 and the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; It is composed of a tension member 400 that is installed obliquely between the anchorages 200 .

That is, the thumb pile P to which the inclined prestress is introduced according to the present invention is a structure in which the H-beam 100 , the anchorage 200 and the tension member 400 are organically combined.

Here, the H-beam 100 is a steel material composed of a flange 110 and a web 120 .

In addition, the anchorage 200 is composed of an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a includes a first horizontal plate 240 having a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 is composed of a plurality of perforated fixing holes 270 to have a constant diameter,

The lower fixture 200b includes a horizontal plate 210 formed in a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It is composed of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210 .

On the other hand, when each of the upper anchoring holes 200a is installed on one side flange 110 of the H-beam 100, the first of the upper anchoring holes 200a is on the same vertical line as the upper end of the left flange 110 of the H-beam 100. The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the left flange 110, and in the same vertical line as the upper end of the right flange 110 of the H-beam 100, the upper fixing hole (200a) of The first horizontal plate 240 and the second horizontal plate 260 are installed to surround the flange 110 on one side.

In addition, the installation of the lower fixture (200b) is a vertical plate 220 at the lower end of the flange 110 of the other side of the H-beam 100 in a state in which a certain distance is maintained in the opposite direction from the upper fixture (200a) by bolting or welding. do.

Here, the reason for installing the vertical plate 220 on the other side flange 110 of the lower end of the H-beam 100, which is a position opposite to the upper fixture 200a, is structurally advantageous for the lower fixture 200b.

In particular, it is revealed that the lower anchorage 200b can be arranged in various shapes at the lower end of the flange 110 based on the upper anchorage 200a installed at the uppermost end of the flange 110, and is not limited to any specific shape. it is put

Meanwhile, the tension member 400 is composed of any one of a PC steel wire, a PC steel wire, a PC steel bar, and a PC steel material.

If necessary, a tension member in which individual PC steels can be prestressed in single or multiple bundles may be used.

That is, the end of the high-strength steel is fixed to the anchorage in a tensioned state by applying a tensile force to the steel material.

Here, in order to improve the efficiency of the above-mentioned prestressing, the tensile stress applied to the tension member must be large at first, which is why high-strength steel should be used as the tension member in the PC.

Hereinafter, the self-supporting temporary retainer construction using the thumb pile to which the inclined prestress is introduced according to the present invention having the configuration as described above will be described.

40 is an exemplary view showing a self-supporting temporary retainer using a thumb stake to which the inclined prestress is introduced according to the present invention.

As shown in this figure, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises the steps of manufacturing the thumb pile (P) to which the inclined prestress is introduced (S 1); Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2); Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H); Tensing the tension member 400 installed on the driving H-beam 100 (S5); Excavation of the front part of the H-beam 100 is performed and at the same time installing the earth plate (S6).

That is, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprises: an H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of one flange 110 of the H-beam 100 and the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed obliquely between the anchorages 200, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a has a constant thickness and width A first horizontal plate 240 made of a rectangular shape having a; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is formed in a rectangular shape having a predetermined thickness and width. a horizontal plate 210; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It consists of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210, and when each of the upper fixing holes 200a is installed on one side flange 110 of the H-beam 100, the H-beam The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the upper end of the left flange 110 of 100 are installed in a form surrounding the left flange 110, and H The first horizontal plate 240 and the second horizontal plate 260 of the upper fixture 200a on the same vertical line as the top end of the right flange 110 of the beam 100 surround the flange 110 on one side. The installation of the lower anchorage 200b is performed by bolting or welding the vertical plate 220 to the lower end of the flange 110 on the other side of the H-beam 100 while maintaining a certain distance in the opposite direction from the upper anchorage 200a. The tension member 400 is made of a high-strength structural tension member to which the inclined prestress is introduced, and the target ground (G) to which the inclined prestress is introduced is installed at regular intervals. , after drilling to a predetermined diameter and depth to form a perforated hole (H), and then driving a thumb stake (P) to which inclined prestress is introduced into the perforated hole (H), and then to the H-beam ( 100 ) After tensioning the installed tension member 400 with a predetermined force, an earth plate (not shown) is installed while repeatedly excavating the front part of the H-beam 100 .

In addition, displacement measurement and management are carried out in each excavation step.

In the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced according to the present invention comprising the steps as described above, the anchorage 200 is installed on the H-beam 100, and the anchorage 200 is equipped with a tension member ( 400), and by introducing a thumb pile (P) to which an inclined pre-stress is introduced to support earth pressure by applying tension to the tension member 400, the number of braces installed is greatly reduced to secure a wide working space and It has the effect of reducing the construction cost and improving the workability by shortening the construction period and reducing the amount of steel used due to the increase in efficiency.

The preferred embodiments described in the specification of the present invention are illustrative and not restrictive, the scope of the present invention is indicated by the appended claims, and all modifications falling within the meaning of those claims are included in the present invention. will become

100: H beam 200: anchorage
200a: upper anchorage 200b: lower anchorage
210: horizontal plate 220: vertical plate
230: swash plate 240: fixer
250: first horizontal plate 260: connection plate
270: second horizontal plate 290: fixing hole
300: swash plate 310: fixer
400: tension member
G: Ground H: Drill hole
P: Thumb stake with inclined prestress

Claims (10)

delete H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a horizontal plate 210 made of a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; It consists of a plurality of fixing holes 230 perforated to have a constant diameter in the horizontal plate 210, the upper fixing hole 200a is fixedly installed on the uppermost end of the flange 110, and the lower fixing hole 200b is a flange. (110) Thumb stakes introduced with inclined pre-stress, characterized in that it is fixed to the lowermost end. H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a first horizontal plate 240 made of a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of perforated fixing holes 270 to have a constant diameter, and the upper fixing hole 200a is fixedly installed at the uppermost end of the flange 110 . and the lower anchorage hole (200b) is an inclined prestress-introduced thumb pile, characterized in that it is fixedly installed at the lowermost end of the flange (110). H-beam 100 consisting of a flange 110 and a web 120 having a constant length; The flange 110 and an anchorage 200 coupled to a predetermined position by bolting or welding; Consists of a tension member 400 that is fixed and installed obliquely between the anchorages 200, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a has a constant thickness and width A first horizontal plate 240 made of a rectangular shape having a; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is a rectangular shape having a constant thickness and width. a vertical plate 280 made of; a horizontal plate 290 formed by being bent at a right angle from an end of the vertical plate 280; an inclined plate 300 disposed between the vertical plate 280 and the horizontal plate 290 and formed in a triangular shape; It consists of a plurality of fixing holes 310 perforated to have a constant diameter in the horizontal plate 290, the upper fixing hole 200a is fixedly installed on the uppermost end of the flange 110, and the lower fixing hole 200b is a flange. (110) Thumb stakes introduced with inclined pre-stress, characterized in that it is fixed to the lowermost end. delete delete H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of the one flange 110 of the H-beam 100 and to the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a horizontal plate 210 made of a rectangular shape having a constant thickness and width; a vertical plate 220 formed by being bent at a right angle from an end of the horizontal plate 210; Inclined pre-stressed thumb stakes, characterized in that the horizontal plate (210) is composed of a plurality of perforated fixing holes (230) to have a constant diameter. H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of the one flange 110 of the H-beam 100 and to the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed between the anchorages 200 at an angle, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a and the lower anchorage 200b ) is a first horizontal plate 240 made of a rectangular shape having a constant thickness and width; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; Inclined pre-stressed thumb pile, characterized in that it consists of a plurality of fixing holes 270 perforated to have a constant diameter in the first horizontal plate 240 and the second horizontal plate 260. H-beam 100 consisting of a flange 110 and a web 120 having a constant length; An anchor 200 coupled to the upper end of the flange 110 of one side of the H-beam 100 and the lower end of the other flange 110 of the H-beam 100 by bolting or welding to face each other; Consists of a tension member 400 that is fixed and installed obliquely between the anchorages 200, the anchorage 200 includes an upper anchorage 200a and a lower anchorage 200b, and the upper anchorage 200a has a constant thickness and width A first horizontal plate 240 made of a rectangular shape having a; a connecting plate 250 formed by being bent at a right angle from an end of the first horizontal plate 240; a second horizontal plate 260 formed by being bent at a right angle from an end of the connecting plate 250; The first horizontal plate 240 and the second horizontal plate 260 are composed of a plurality of fixing holes 270 perforated to have a constant diameter, and the lower anchoring hole 200b is formed in a rectangular shape having a predetermined thickness and width. a horizontal plate 280; a vertical plate 290 formed by being bent at a right angle from an end of the horizontal plate 280 and having an arc-shaped upper portion; an inclined plate 300 disposed between the horizontal plate 280 and the vertical plate 290 and formed in a triangular shape; Inclined prestress-introduced thumb pile, characterized in that it consists of a plurality of fixing holes 310 perforated so as to have a constant diameter in the vertical plate 290. Claim 2. Claims 3, 4, 7, 8, 9 of claim 9, wherein any one of the inclined pre-stress is introduced the step of producing a thumb stake (P) is introduced (S 1);
Forming a perforation hole (H) by drilling at a predetermined interval in the ground (G) to a predetermined diameter and depth (S 2);
Step (S 3) of driving the thumb pile (P) to which the inclined pre-stress is introduced into the perforation hole (H);
Tensing the tension member 400 installed on the driving H-beam 100 (S5);
A self-supporting temporary retainer construction method using a thumb pile to which inclined prestress is introduced, characterized in that it consists of a step (S6) of installing an earth plate while excavating the front part of the H-beam (100).

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