KR101781475B1 - Reinforcing member for ground and timbering method using the same thing - Google Patents

Reinforcing member for ground and timbering method using the same thing Download PDF

Info

Publication number
KR101781475B1
KR101781475B1 KR1020150089457A KR20150089457A KR101781475B1 KR 101781475 B1 KR101781475 B1 KR 101781475B1 KR 1020150089457 A KR1020150089457 A KR 1020150089457A KR 20150089457 A KR20150089457 A KR 20150089457A KR 101781475 B1 KR101781475 B1 KR 101781475B1
Authority
KR
South Korea
Prior art keywords
hollow body
ground
reinforcement member
ground reinforcement
wedge
Prior art date
Application number
KR1020150089457A
Other languages
Korean (ko)
Other versions
KR20170000505A (en
Inventor
손성곤
유진오
김진형
Original Assignee
(주)테크비전
코오롱글로벌 주식회사
주식회사 티에스테크노
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)테크비전, 코오롱글로벌 주식회사, 주식회사 티에스테크노 filed Critical (주)테크비전
Priority to KR1020150089457A priority Critical patent/KR101781475B1/en
Publication of KR20170000505A publication Critical patent/KR20170000505A/en
Application granted granted Critical
Publication of KR101781475B1 publication Critical patent/KR101781475B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil

Abstract

The present invention is characterized in that a pressure fluid (100A) is injected through a tip end and a pressure fluid (100) is supplied to the hollow (111) in a state where a part is recessed along the circumferential direction, 100A; < / RTI > And a wedge part (120) protruding from the hollow body (110) with a space formed therebetween and spaced apart from the hollow body (110) along the circumference of the wedge part (120) It is possible to improve the penetration performance of grout material by maximizing the rigidity and improving the adhesion and fixing performance so as to reinforce the soil such as slope and slope which can hardly stand up after perforation of the ground quickly and stably.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ground reinforcement member,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering field, and more particularly, to a ground reinforcement member and a ground supporting method using the same.

The ground reinforcement member is a material used to support the tunnel and the slope in the ground.

Such a ground reinforcement member may be used as a rock bolt for reinforcing a ground reinforcement member by inserting a ground reinforcement member into a perforation hole formed by drilling a ground such as a rock or the like. Alternatively, as shown in FIG. 2, Is used as a soil nailing for reinforcing the soil reinforcement member by inserting the ground reinforcement member into the soil reinforcement member.

There are various structures of the ground reinforcement member, one of which is an expandable structure.

1, the inflatable ground reinforcement member 10 is installed in the perforation hole in a state in which a part of the hollow body 12 is pushed (refer to 'R1' in FIG. 1) Pressure water is supplied to the hollow 12A of the hollow body 12 to expand the hollow body 12 so that the expanded hollow body 12 can be fixedly attached to the ground such as a rock or the like 'R2').

The tip end cap 14 and the end end cap 16 are fitted to the lines and terminations of the hollow body 12, respectively, and are fixed by welding.

However, in the related art, due to the gap between the lock bolt and the drilled hole, the support force of the lock bolt is lowered, and when the ground is deformed, the grout material is damaged and the rock bolt performance is drastically deteriorated.

In addition, in the case of a ground in which a hole is likely to collapse immediately due to difficulty in self-standing after perforating the ground like a soft ground, it is very difficult to insert the ground reinforcement member 10 into the perforation hole.

In addition, since the conventional ground supporting method is formed only by the friction between the hollow body 12 and the ground 1, it is pointed out that there is a limit in the frictional force and the grounding stress.

3 and 4, when the reinforcing bar 21 or the steel pipe 22 is inserted into the perforation hole 1 of the ground and the grouting G is performed, There is a problem that the performance of the reinforcing member is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to improve ground penetration performance of a grout material, maximize rigidity and improve adhesion and fixation performance, The present invention provides a ground reinforcement member and a ground support method using the same.

In order to solve the above problem, the present invention is characterized in that the present invention is formed to have a hollow (111) through which a pressure fluid (100A) is injected through a tip end, and a part is recessed along a circumferential direction, A hollow body 110 which is inflated by a pressure fluid 100A supplied to the hollow body 110; And a wedge part (120) protruding from the hollow body (110) with the recessed part (113) formed on the outer side of the hollow body (110) present.

The wedge part (120) includes a band (120a) fitted to the outside of the hollow body (110) with the recessed part (113) formed therein. And a plurality of protrusions 120b protruding from the outer side of the band at intervals along the circumference thereof.

The wedge part 120 preferably includes a circular wedge part 121 having a circular cross-section of the protrusion part 120b.

The wedge part 120 preferably includes a rectangular wedge part 122 having a rectangular cross-section of the protrusion part 120b.

The wedge part 120 preferably includes an inclined wedge part 123 whose cross section of the protrusion part 120b gradually increases rearward.

The wedge part 120 is fitted in the band-shaped structure on the outside of the hollow body 110 in which the recessed part 113 is formed, and has a trapezoidal cross-section so as to gradually increase its diameter toward the rear side And a formed trapezoidal wedge portion (124).

The wedge part 120 is sandwiched in a band-like structure on the outer side of the hollow body 110 in which the recessed part 113 is formed, and at the rear of the wedge part 120, the rear part of the wedge part 120 is expanded by the expansion of the hollow body 110 A plurality of unfolding members 125 that are spaced apart from each other with a gap therebetween are preferably formed.

The spreader member 125 is preferably formed of a material imparted with an elastic force.

The wedge part 120 is formed such that the diameter d1 of the wedge part 120 is smaller than that of the concave part 113 so as to be in close contact with the inside of the wedge part 120 as the hollow body 110 is inflated by the pressure fluid 100A. The outer diameter of the hollow body 110 and the engaging portion of the wedge portion 120 are preferably welded to each other.

The outer side of the hollow body 110 and the coupling part of the wedge part 120 are preferably joined by spot welding.

The wedge portions 120 may be formed in a plurality of intervals along the longitudinal direction of the hollow body 110.

And an expansion preventing member 140 fitted between the plurality of wedge portions 120 to prevent expansion of the hollow body 110. The expansion preventing member 140 may include a plurality of wedge portions 120, .

And a packing part 130 fitted to a rear side of the hollow body 110 in a state where the concave part 113 is formed by a predetermined length.

The packing 130 may be formed of any one of rubber and water-swellable index material or a mixture thereof.

The present invention provides a ground support method using the ground reinforcement member, comprising: a perforation step of forming a perforation hole (2) in a ground (1); A first grouting step of injecting a grout material (200A) into the perforation hole (2); Installing a ground reinforcement member (100) in the perforation hole (2); A hollow body expanding step of injecting the pressure fluid (100A) into the hollow (111) of the hollow body (110) to expand the hollow body (110); And a second grouting step of filling the grout material 200A on the inside of the hollow body 110. FIG.

The present invention provides a ground support method using the ground reinforcement member, comprising: a perforation step of forming a perforation hole (2) in a ground (1); Installing a grouting material (200A) into the perforation hole (2) and installing the ground reinforcement member (100); installing a first grouting and a ground reinforcement member; A hollow body expanding step of injecting the pressure fluid (100A) into the hollow (111) of the hollow body (110) to expand the hollow body (110); And a second grouting step of filling the grout material 200A on the inside of the hollow body 110. FIG.

The ground reinforcement member 100 is inserted into the recessed portion 113 to be integrally joined to the hollow body 110 so that the grout material 200A is injected into the perforation hole 2, Wherein the first grouting and the ground reinforcement member are installed in the perforation hole 2 by using the injection hose 200. The first grouting and the ground reinforcement member are installed in the perforation hole 2, It is preferable to inject the grout material 200A.

The present invention also discloses a rock bolt construction method using a ground support method using the ground reinforcement member (100).

The present invention also provides a soilless nailing method using the ground support member using the ground reinforcement member (100).

The present invention relates to a ground reinforcement member for rapidly and stably reinforcing the ground such as slope, slope, and the like, which improves the penetration performance of the grout material and maximizes the stiffness and improves the adhesion and fixing performance, Provide a law.

1 is a first application example of a ground reinforcement member according to the prior art.
2 is a second application example of the ground reinforcement member according to the prior art.
3 is a crack distribution diagram of a third application example of the ground reinforcement member according to the prior art.
4 is a crack distribution diagram of a fourth application example of the ground reinforcement member according to the related art.
5 to 13 illustrate an embodiment of a ground reinforcement member according to the present invention,
5 is a side sectional view of the first embodiment;
6 is a cross-sectional view of the second embodiment;
7 is a cross-sectional view of the third embodiment.
Figure 8 is a cross-sectional view of Figure 5;
9 is a perspective view of the fourth embodiment.
10 is a cross-sectional view of the fifth embodiment;
11 is a perspective view of a sixth embodiment.
12 is a sectional view of Fig. 11;
13 is a side sectional view of the seventh embodiment.
14 to 20 show a first embodiment of the guarding method according to the present invention,
14 is a process chart showing the primary grouting step.
15 is a process chart showing a ground reinforcement member installation step.
FIG. 16 is a sectional view of FIG. 12; FIG.
17 is a process chart showing an expansion step;
Fig. 18 is a sectional view of Fig. 14; Fig.
19 is an exploded perspective view of a fifth embodiment of the ground reinforcement member.
20 to 22 show a second embodiment of the guarding method according to the present invention,
20 is a process chart showing a ground reinforcement member installation step;
21 is a process chart showing a primary grouting step;
22 is an installation cross-sectional view according to a second embodiment of the ground support method;
23 is an installation cross-sectional view according to a third embodiment of the ground support method.
Figs. 24 to 28 are cross-sectional views showing process steps of the sealing method according to the present invention,
24 is a cross-sectional view showing a drilling step;
25 is a sectional view showing the primary grouting step;
26 is a sectional view showing the ground reinforcement member installation step;
Fig. 27 is a sectional view showing an expansion step; Fig.
28 is a sectional view showing the second grouting step;

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

5, the ground reinforcement member 100 according to the present invention is formed to have a hollow 111 through which a pressure fluid 100A is injected through its tip, and a portion is recessed along the circumferential direction A hollow body 110 which is expanded by a pressure fluid 100A supplied to the hollow 111 in a state where the inlet 113 is formed; And a wedge portion 120 having a plurality of protrusions formed at an outer circumference of the hollow body 110 in a state where the recessed portion 113 is formed.

That is, after the ground reinforcement member 100 of the present invention is installed in the perforation hole 2 of the ground 1, when the hollow body 110 is inflated, the wedge portion 120 is fixed to the ground, 120) serve as underground wedges (Fig. 15).

With this structure, it is possible to maximize the fixing performance and the drawing performance of the ground and the ground reinforcement member 100.

Therefore, the conventional problem that the ground supporting force of the ground reinforcement member 100 is lowered due to the gap between the ground reinforcement member 100 and the perforation hole 2 can be solved.

In order to maximize the above advantages, the ground supporting method using the ground reinforcement member 100 of the present invention is characterized in that before the ground reinforcement member 100 is inserted into the perforation hole 2, the grout material 2 A second grouting step is performed in which the hollow body 110 is inflated and the grout material 200A is filled in the hollow body 110 after the first grouting step of injecting the grout material 200A first .

That is, the grout material 200A injected through the primary grouting step penetrates into the ground when the hollow body 110 is inflated, thereby improving the fixing performance of the ground reinforcement member 100. [

Also, through the secondary grouting step, the stiffness and ground reinforcement effect of the ground reinforcement member 100 can be improved.

In other words, the present invention proposes a method of maximizing the ground reinforcement effect through the method including the wedge portion 120 and the primary and secondary grouting steps together with the ground reinforcement effect through the ground reinforcement member 100 will be.

The ground reinforcement member 100 of the present invention is provided so as to be upwardly or horizontally directed to the ground la such as a rock or the like and can function as a rock bolt to effectively reinforce the rock.

In addition, the ground reinforcement member 100 of the present invention may be provided so as to face downward or horizontally to the ground 1b including gravel, weathered rock, soft rock, etc., and function as a soil nailing effectively reinforcing the slope 21 and 22).

Further, the ground reinforcement member 100 of the present invention may be used as a temporary earth retaining structure to prevent collapse of the back ground 1c (Fig. 23).

As described above, the ground reinforcement member 100 can exert both functions as a rock bolt and soilless nailing, and thus has an advantage of being very excellent in field applicability.

In addition, since the hollow body 110 is expanded by the pressure fluid 100A and is brought into close contact with the ground 1 after the installation of the ground reinforcement member 100 of the present invention, the hollow body 110 and the hollow body 110 Is minimized, it is advantageous to further improve the supporting force of the reinforcing member 100 (FIG. 18).

Particularly, the grout material 200A is injected into the perforation hole 2 and the grout material 200A injected while the hollow body 110 is infiltrated penetrates into the surrounding ground 1 of the perforation hole 2, The surrounding ground 1 of the perforation hole 2 is reinforced by the solidification and the binding force between the hollow body 110 and the ground 1 is increased.

Therefore, it is possible to secure a remarkably superior torsional strength through the ground reinforcement member 100 according to the present invention, and thus it is advantageous that it can be easily applied to the soft ground.

More specifically, the wedge portion 120 includes a band 120a fitted to the outside of the hollow body 110 in which the recessed portion 113 is formed, and a plurality of protrusions And a protruding portion 120b (Fig. 6).

Accordingly, it is advantageous that the installation work is easy. A plurality of the wedge portions 120 are preferably formed at intervals in the longitudinal direction of the hollow body 110. The banded structure is advantageous in terms of convenience Can be further improved.

The wedge portion 120 may have various shapes such as a circular wedge portion 121 having a circular section, a rectangular wedge portion 122 having a rectangular cross section, or an inclined wedge portion 123 having a cross section increasing gradually toward the rear side (Figs. 6, 7 and 8).

9, the wedge portion 120 is sandwiched in a band-like structure on the outer side of the hollow body 110 in which the recessed portion 113 is formed, and its diameter gradually increases toward the rear Shaped wedge portion 124 formed in a trapezoidal cross-section so as to increase the cross-sectional shape of the wedge portion.

The wedge portion 120 is formed such that a diameter d1 is formed in the concave portion 113 so that the wedge portion 120 can be in close contact with the inside of the wedge portion 120 as the hollow body 110 is inflated by the pressure fluid 100A. (D2) of the hollow body 110 in a state of being in a state of being in a state of being in a state of being opened.

In addition, the wedge portion 120 can be realized with a structure in which the spreading member 125 is formed at the rear side (FIG. 11).

More specifically, the expanding member 125 is inserted in the band-shaped structure on the outer side of the hollow body 110 in which the recessed portion 113 is formed, It is a structure that spreads at intervals.

This is because when the ground reinforcement member 100 flows into the perforation hole 1, the spreading member 125 is in close contact with the outer side of the hollow body 110 in an integrated band structure, thereby preventing interference.

After the insertion of the ground reinforcement member 100, as the hollow body 110 is inflated, the rearward spreading members 125 are naturally spread at mutually spaced intervals.

As described above, the structure in which the plurality of spreading members 125 are spread apart with each other has an advantage that the support force can be maximized because the wedge part 120 can be fixed to a wider area.

The spreading member 125 is preferably formed of a material imparted with an elastic force so that the above function can be effectively exhibited.

The outer side of the hollow body 110 and the coupling portion of the wedge portion 120 are preferably welded to each other. Particularly, the coupling is more effective in terms of workability and structure (FIG. 12).

On the other hand, the hollow body 110 can take a depressed shape in various shapes and can be pressed to have a substantially 'C' shaped sectional structure, for example, as shown in the figure.

The hollow body 110 may be formed by bending a flat plate into a tube or a pipe and then folding or rolling one side of the outer circumference to press it inward .

The hollow body 110 may be formed of various materials. In particular, the hollow body 110 may be made of a steel pipe having excellent rigidity for supporting and expanding by the pressure fluid 100A as described above.

The present invention provides a structure in which an expansion preventing member 140 is provided to prevent the expansion of a partial region of the hollow body 110 and to maximize the expansion of the region provided with the wedge portion 120 13).

That is, the expansion preventing member 140 is a member that is fitted to the outside of the hollow body 110 and disposed between the plurality of the wedge portions 120 to prevent the expansion of the hollow body 110.

The pressure fluid 100A of the hollow body 110 may be a variety of media such as high pressure water. Particularly, by using the grout material 200A, corrosion of the hollow body 110 due to moisture can be prevented, It is possible to further enhance the effect of increasing the abutment force in accordance with the improvement of the pressing stress of the hollow body 110 by the abutting portion 200A.

Here, the pressure fluid 100A may be the same as or different from the grout material 200A.

The grouting material 200A is first injected into the perforation hole 2 before the ground reinforcement member 100 is inserted into the perforation hole 2 as described above.

Here, in order to prevent the overflow of the grout material 200A pre-infused when the hollow body 110 is inflated and to maximize the penetration effect of the grout material 200A by the inflation pressure, The ground reinforcement member 100 of the present invention has a structure in which the packing portion 130 is fitted to the rear outside of the hollow body 110 in which the concave portion 113 is formed by a predetermined length (Figures 5 and 10) .

It is preferable that the packing part 130 is formed of any one or a mixture of rubber and water-swellable index material so as to exhibit the function more effectively.

The ground supporting method using the ground reinforcement member 100 of the present invention comprises the following steps.

First, a perforation step of forming a perforation hole 2 in the ground 1 is performed (Fig. 24).

The present invention is characterized in that the diameter of the perforation hole 2 is smaller than the diameter of the hollow body 110 when expanded.

This is because, in the conventional method, the perforation hole must be formed with a diameter larger than the diameter of the lock bolt. As a result, the gap between the lock bolt and the perforation hole becomes large, .

That is, according to the present invention, since the perforation hole 2 is formed smaller than the diameter of the hollow body 110 when expanded, it can be more closely attached to the ground when the hollow body 110 is inflated, It is possible to minimize the relaxation and to restore the initial state of the ground surface.

Then, a first grouting step of injecting the grout material 200A into the perforation hole 2 is performed (Figs. 14 and 25).

That is, according to the present invention, the grout material 200A is first injected before the ground reinforcement member 100 is installed in the perforation hole 2, so that the ground reinforcement effect can be obtained through immediate pressing, The adhesion force of the member 100 can be increased and the reinforcing performance of the ground reinforcement member 100 can be maximized.

As described above, it is possible to prevent the overflow of the grout material 200A through the structure in which the packing 130 is fitted outside the rear side of the ground reinforcement member 100 and to prevent the overflow of the grout material 200A due to the inflation pressure The penetration effect can be improved.

Next, the ground reinforcement member 100 is installed in the perforation hole 2 (Figs. 15, 16, and 26).

Then, the pressure fluid 100A is injected into the hollow 111 of the hollow body 110 to expand the hollow body 110 (FIGS. 17 and 27).

At this stage, the wedge part 120 is fixed into the ground and exerts a ground wedge function, thereby maximizing the fixing performance of the ground reinforcement member 100.

Also, the permeability of the grout material 200A to the ground can be further improved by the pressure when the hollow body 110 is inflated through the packing part 130.

Since the ground reinforcement member 100 can be expanded after the first grouting step is performed in the perforation hole 2 as described above, the following effects can be further obtained.

First, even in the case of the soft ground 1, there is no fear that the perforation hole 2 will collapse under the expansion pressure of the ground reinforcement member 100.

Secondly, since the ground reinforcement member 100 is inflated and the grout material 200A injected into the perforation hole 2 can be pressed against the ground 1 around the perforation hole 2, Not only a more rigid solidification can be formed by the grout material 200A but also the earth pressure stress between the ground reinforcement member 100 and the ground 1 can be further increased.

Thirdly, the grout material 200A injected into the perforation hole 2 is uniformly and firmly interposed between the ground 1 around the perforation hole 2 and the ground reinforcement member 100, have.

Next, a secondary grouting step of filling the grout material 200A inside the hollow body 110 is performed (Fig. 28).

That is, the ground supporting method of the present invention is characterized in that a process of filling the grouting material 200A is also performed inside the ground reinforcement member 100. [

Through the above process, there is an advantage that the rigidity of the ground reinforcement member 100 can be maximized.

That is, conventionally, as shown in FIG. 3, as shown in FIG. 3, when a steel pipe is used as a ground reinforcement member or when a general steel pipe is used as shown in FIG. 4, breakage of the grout material occurs at the time of ground deformation, .

In order to solve such a problem, in the present invention, a secondary grouting step of filling the grout material 200A inside the ground reinforcement member 100 is further performed, so that even when the ground load is applied, the grout material Since the stiffness can be maintained by the stiffener 200a, deformation and breakage can be minimized and continuous performance can be exhibited.

Meanwhile, according to the ground supporting method of the present invention, the installation step of the ground reinforcement member 100 may be started or concurrently performed in the middle of the first grouting step, depending on the field conditions, the ground 1, and the like.

That is, the primary grouting and the ground reinforcement installation step of forming the perforation hole 2 in the ground 1, injecting the grout material 200A into the perforation hole 2, and installing the ground reinforcement member 100 .

In order to perform the above process, the ground reinforcement member 100 is preferably provided with an injection hose 200 so that water or grout material 200A is injected into the perforation hole 2 (FIG. 19).

The injection hose 200 is fitted in the recessed portion 113 and is integrally joined to the hollow body 110 and is installed in the hollow hole 2 together with the hollow body 110.

The pressure fluid 100A is injected into the hollow 111 of the hollow body 110 to inflate the hollow body 110 and the grout material 200A is injected into the hollow body 110, A second grouting step is performed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

1: ground 2: perforation hole
100: ground reinforcement member 100A: pressure fluid
110: hollow body 111: hollow
113: Nipple 120: Wedge
121: circular wedge portion 122: square wedge portion
123: an inclined wedge portion 124: a trapezoidal wedge portion
125: Expanding member 130: Packing part
140: expansion preventing member 200: injection hose
200A: Grout material

Claims (19)

The pressure fluid 100A is formed to have a hollow 111 into which the pressure fluid 100A is injected through the tip and a portion is recessed along the circumferential direction so that the pressure fluid 100A supplied to the hollow 111, A hollow body 110 which is inflated by the elastic member 110;
A wedge portion 120 having a plurality of protrusions formed on the outer side of the hollow body 110 in a state where the recessed portion 113 is formed with an interval therearound;
A packing part (130) fitted to a rear side of the hollow body (110) in a state where the concave part (113) is formed by a predetermined length;
And an expansion preventing member 140 fitted on the outer side of the hollow body 110 and disposed between the plurality of wedge portions 120 to prevent expansion of the hollow body 110, ,
The wedge part (120)
A band 120a fitted to the outside of the hollow body 110 in which the recessed portion 113 is formed;
And a plurality of protrusions (120b) protruding from the outer side of the band at intervals along the circumference,
The protruding portion 120b includes an inclined wedge portion 123 gradually increasing in cross section rearward; ego,
The wedge part (120)
Wherein a plurality of the hollow bodies (110) are formed at intervals in the longitudinal direction of the hollow body (110). delete The method according to claim 1,
The wedge part (120)
A circular wedge portion 121 having a circular cross-section of the projecting portion 120b;
(100). ≪ / RTI > The method according to claim 1,
The wedge part (120)
A rectangular wedge portion 122 having a rectangular cross-section of the protrusion 120b;
(100). ≪ / RTI > delete delete delete delete delete The method according to claim 1,
Wherein the outer side of the hollow body (110) and the coupling part of the wedge part (120) are coupled by spot welding. delete delete delete The method according to claim 1,
The packing part 130
Rubber, and water expansion index material, or a mixture thereof. The ground support method using the ground reinforcement member according to any one of claims 1, 3, 4, 10, and 14,
Forming a perforation hole (2) in the ground (1);
A first grouting step of injecting a grout material (200A) into the perforation hole (2);
Installing a ground reinforcement member (100) in the perforation hole (2);
A hollow body expanding step of injecting the pressure fluid (100A) into the hollow (111) of the hollow body (110) to expand the hollow body (110);
A second grouting step of filling the grout material 200A inside the hollow body 110;
Wherein the method comprises the steps of: The ground support method using the ground reinforcement member according to any one of claims 1, 3, 4, 10, and 14,
Forming a perforation hole (2) in the ground (1);
Installing a grouting material (200A) into the perforation hole (2) and installing the ground reinforcement member (100); installing a first grouting and a ground reinforcement member;
A hollow body expanding step of injecting the pressure fluid (100A) into the hollow (111) of the hollow body (110) to expand the hollow body (110);
A second grouting step of filling the grout material 200A inside the hollow body 110;
Wherein the method comprises the steps of: 17. The method of claim 16,
The ground reinforcement member (100)
The hollow body 110 is inserted into the hollow body 110 so that the grout material 200A is injected into the hollow body 2 and inserted into the hollow body 110, (200) installed in the main body (2);
Further,
The primary grouting and the ground reinforcement member installing step
Wherein the grouting material (200A) is injected into the perforation hole (2) by using the injection hose (200). A rock bolt construction method using the ground reinforcement member (100) of claim 1. A soilless nailing method using the ground reinforcement member (100) of claim 1.
KR1020150089457A 2015-06-24 2015-06-24 Reinforcing member for ground and timbering method using the same thing KR101781475B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150089457A KR101781475B1 (en) 2015-06-24 2015-06-24 Reinforcing member for ground and timbering method using the same thing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150089457A KR101781475B1 (en) 2015-06-24 2015-06-24 Reinforcing member for ground and timbering method using the same thing

Publications (2)

Publication Number Publication Date
KR20170000505A KR20170000505A (en) 2017-01-03
KR101781475B1 true KR101781475B1 (en) 2017-09-26

Family

ID=57797388

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150089457A KR101781475B1 (en) 2015-06-24 2015-06-24 Reinforcing member for ground and timbering method using the same thing

Country Status (1)

Country Link
KR (1) KR101781475B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102167908B1 (en) * 2018-03-13 2020-10-20 코오롱글로벌 주식회사 Timbering method using the reinforcing member for ground
KR102267049B1 (en) * 2021-03-15 2021-06-17 윤은수 Watertight Band for Tube Type Rock Bolt
KR102554653B1 (en) * 2023-03-21 2023-07-12 휘성개발 주식회사 Large-scale construction-type vegetation block structure with displacement suppression function
KR102554651B1 (en) * 2023-03-21 2023-07-12 휘성개발 주식회사 Slope reinforced retaining wall structure using fixing member
KR102554654B1 (en) * 2023-03-21 2023-07-12 휘성개발 주식회사 Retaining wall structure for cutting area and builtup soil area using rock backfill structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006336387A (en) * 2005-06-03 2006-12-14 Tokai Rubber Ind Ltd Anchor device
JP2007224594A (en) * 2006-02-23 2007-09-06 Matsumoto Giken Kk Water cutoff rock bolt
KR101038472B1 (en) * 2010-10-29 2011-06-02 주식회사 티에스테크노 Rockbolt and timbering method using the same
JP2011190642A (en) * 2010-03-16 2011-09-29 Shinko Kenzai Ltd Anchor
KR101219449B1 (en) * 2011-01-10 2013-01-11 주식회사 티에스테크노 Rockbolt and connector for the same, timbering method using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006336387A (en) * 2005-06-03 2006-12-14 Tokai Rubber Ind Ltd Anchor device
JP2007224594A (en) * 2006-02-23 2007-09-06 Matsumoto Giken Kk Water cutoff rock bolt
JP2011190642A (en) * 2010-03-16 2011-09-29 Shinko Kenzai Ltd Anchor
KR101038472B1 (en) * 2010-10-29 2011-06-02 주식회사 티에스테크노 Rockbolt and timbering method using the same
KR101219449B1 (en) * 2011-01-10 2013-01-11 주식회사 티에스테크노 Rockbolt and connector for the same, timbering method using the same

Also Published As

Publication number Publication date
KR20170000505A (en) 2017-01-03

Similar Documents

Publication Publication Date Title
KR101781475B1 (en) Reinforcing member for ground and timbering method using the same thing
KR101353882B1 (en) Method of reinforcement and construction of pillar of neighboring tunnel
KR101038472B1 (en) Rockbolt and timbering method using the same
KR101233794B1 (en) Tunnel reinforcing method by multi-forepoling
KR100766450B1 (en) The anchor construction method in soft ground of gaving used the foundation fixing anchor and this shich consisted of fixing supporter
KR20200047881A (en) Simultaneous injection method of permeation grouting for reinforcing tunnel using outer packer
KR100966148B1 (en) Ground adhering soil nailing structure and ground reinforcement method using the same
KR101402267B1 (en) Close juxtaposition tunnel pillar reinforcement structure and its construction methods
KR102077325B1 (en) Caulking unit with quick attachment for tube assembly for tunnel grouting and tunnel supporting method of using thereof
KR100707138B1 (en) The pressure type grouting equipment for ground reinforcement, and a method of construction
KR101079075B1 (en) Reinforce Unit For Grouting And Grouting Reinforce Method Using The Same
KR101236765B1 (en) Method for placing adhesive filling into the expanded drill hole to increase bearing capacity of piles and tention members and apparatus therefor
KR101029320B1 (en) Rock bolt and fixation method the rock bolt
KR100908085B1 (en) Ground adhering soil nailing structure and ground reinforcement method using the same
KR101024604B1 (en) Pressure type reinforced unit soil nailing using inclined member and wrinkle-pipe
KR20050029951A (en) Soil nailing by extended packer grouting and construction method
KR101110274B1 (en) Calking assembly for recycling and tunnel reinforcement method using it
KR102522769B1 (en) Fixing construction method of high-strength GFRP hollow bar for tunnel and ground reinforcement and its construction device
KR101757975B1 (en) Anchor having a fixing device at a side of pressure plate to depress the land slope and method of installing the same
KR101949854B1 (en) ground anchor body using guard packer and method thereof
KR20150109677A (en) Self-drilling rockbolt and timbering method using the same
KR20140101483A (en) Apparatus for holding a wire strand of anchor
KR101017412B1 (en) Permanent anchor of friction bearing pressure type and constructing method thereof
KR102176457B1 (en) Soil nailing Device and soil nailing method using the same
KR100869369B1 (en) The ground reinforcement apparatus and method grouting type using bundle steel pipe

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant