KR101927736B1 - A soil ancher having excellent ground fixing force and constructing method for planting mat or retaining wall using thereof - Google Patents

Abstract

The present invention relates to a soil anchor having an excellent ground fixing force and an installation method of a vegetation mat and an installation method of an anchor retaining wall using the same. More specifically, the soil anchor having an excellent ground fixing force comprises: an anchor bolt which is formed in a prescribed length in a vertical longitudinal direction, and has screw threads formed on a lower portion thereof; a moving body allowing the anchor bolt to be inserted into a penetration hole formed on one surface thereof to be moved in the longitudinal direction of the anchor bolt, and having rotary coupling units formed on both sides thereof; a wing member arranged on both sides of the moving body to allow one end thereof to be rotatably coupled to the rotary coupling units; and a nut body having a coupling hole to be screwed to the lower portion of the anchor bolt to be fixed and installed on the anchor bolt. If an upper end of an anchor punch is struck after the anchor punch is inserted from an upper side of the anchor bolt, a lower end of the anchor punch is tightly attached to the moving body to press and move the moving body downwards and slide an end surface of the other side of the wing member to the nut body fixed on the anchor bolt to spread the wing member to both sides. According to the present invention, the wing member coupled to the anchor bolt is spread in the ground and improve a fixing force with the ground to reduce the number of anchor bolts inserted into the ground to reduce construction costs. Moreover, a separately drilled hole does not need to be treated with grout to shorten construction time.

Description

Technical Field [0001] The present invention relates to an anchor retaining wall having an excellent anchorage force and an anchor retaining wall using the same,

The present invention relates to a soilless anchor having an excellent grounding force, a vegetation mat installation method using the same, and a method of installing an anchor retaining wall. More particularly, the present invention relates to an anchor bolt, And a method of installing an anchor retaining wall and a method of installing a vegetation mat using the anchor retaining wall.

Generally, slope and embankment slope has high strength and stability during the dry season due to the nature of the soil, but the surface is scarcely lost due to penetration of rainwater during the wet season and is likely to be lost. Such a plan can not be prevented by the general vegetation method or protection method fundamentally, and the same phenomenon can be repeated every year. Soil nailing method is widely used as the slope stabilization method.

Soil nailing method is a method to integrate soil and nail by stabilizing the soil by inserting reinforcing material (reinforcing material) into the ground and by applying resistance to tensile stress and shear stress of the reinforcing material, It is easy to secure space and it is possible to construct close to the adjacent buildings and underground facilities.

Such a soil nailing method can be widely used for stabilizing excavation surfaces, stabilizing slopes and reinforcing slabs, reinforcing retaining wall structures and existing retaining walls, and reinforcing adjacent structures.

This Soil nailing method can be used to build a highly stable retaining wall by using the ground itself as a wall, and it is possible to construct the equipment in a small and narrow place or a rugged terrain. Moreover, It is easy to construct, easy to construct due to low noise and vibration, and has excellent resistance to movement of surrounding ground.

However, the Soil nailing method must be drilled to a depth of about 6 to 7 m from the ground, so that the depth of drilling should be very deep, and the reinforcing material (reinforcing bar) inserted into the perforated hole may be fixed to the ground separately It is necessary to wait until the reinforcing material is hardened by filling the filling material into the perforation hole through the grouting process so as to fix the reinforcing material to the ground, It is necessary to install a plurality of reinforcements, and other work can not be performed during the grouting process time, resulting in a problem that the construction period is lengthened.

Therefore, a soilless anchor having excellent soil fixing ability that can overcome the unreasonable point of the soil nailing method for stabilizing the conventional slope and shorten the construction period and increase the fixing force with the ground, a method of installing a vegetation mat using the soil anchor, There is a growing demand for installation methods.

Korean Patent Publication No. 2017-0058611

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to increase the fixing force with the ground without a separate grouting process in the perforated hole.

According to an aspect of the present invention, there is provided an anchor bolt having a predetermined length along a longitudinal direction and having a thread formed thereunder, and an anchor bolt inserted into a through hole formed on one surface of the anchor bolt, A wing member disposed on both sides of the moving body and having one end rotatably coupled to the respective pivoting engagement portions; And an anchor punch is inserted from the upper side of the anchor bolt. When the upper end of the anchor punch is priced, the anchor punch The lower end portion is brought into close contact with the moving body so that the moving body is pressed downward, and the other end portion Is sliding on the nut body fixed to the anchor bolt unfolds the wing members are on both sides.

In this case, the other end portion of the wing member is formed as an inclined surface inclined inward, and both sides of the nut body are integrally formed with the contact surfaces contacting the inclined surfaces, and the inclined surfaces of the respective wing members contact the contact surface of the nut body So that the wing members are spread to both sides.

Further, a locking protrusion is formed on the inner side of the wing member, and the contact surface of the nut body is fixed to the locking protrusion while the wing member is extended.

The method of installing the vegetation mat using the soilless anchor is an anchor bolt having a predetermined length along the longitudinal direction and forming a thread at the bottom. And a movable body having the anchor bolt inserted into the through hole formed on one surface thereof and movable along the longitudinal direction of the anchor bolt and formed with a pivotal coupling portion on both sides thereof. And a wing member disposed on both sides of the moving body and having one end pivotally coupled to the respective pivoting engagement portions. Inserting an anchor punch into an anchor bolt, the method comprising the steps of: inserting an anchor punch into the anchor bolt, the anchor bolt having an anchor bolt and a nut body fixed to the anchor bolt, The lower end of the anchor punch is brought into close contact with the upper surface of the moving body so that the moving body is moved downward by pressing the upper end of the anchor punch, The wing member is slidably attached to the nut body fixed to the anchor bolt and is spread to both sides in the ground while the wing member is spread on both sides, and the anchor punch is detached while the wing member is spread on both sides, Filling the inner space with a filler material, forming a seed layer and a clay Forming an upper layer of the vegetation layer with a top net, arranging the rope in a predetermined direction on the upper net, fixing the rope to the upper end of the anchor bolt using a fixing clip, .

In addition, an anchor retaining wall using the soilless anchor has an anchor bolt having a predetermined length along the longitudinal direction and a thread formed at the bottom. And a movable body having the anchor bolt inserted into the through hole formed on one surface thereof and movable along the longitudinal direction of the anchor bolt and formed with a pivotal coupling portion on both sides thereof. And a wing member disposed on both sides of the moving body and having one end pivotally coupled to the respective pivoting engagement portions. Inserting an anchor punch into an anchor bolt, the method comprising the steps of: inserting an anchor punch into the anchor bolt, the anchor bolt having an anchor bolt and a nut body fixed to the anchor bolt, The lower end of the anchor punch is brought into close contact with the upper surface of the moving body so that the moving body is moved downward by pressing the upper end of the anchor punch, The wing member is slidably attached to the nut body fixed to the anchor bolt and is spread to both sides in the ground while the wing member is spread on both sides, and the anchor punch is detached while the wing member is spread on both sides, Filling the inner space with a filler material, forming a flat plate shape in close contact with the ground surface, A step of fixing a pressure plate having fastening holes formed at both ends thereof to an upper end of the anchor bolt, inserting wire ropes continuously with binding holes formed at both ends of the anchor bolt, Installing a wire rope so as to bind, and fixing a plurality of natural stones on the wire rope using a fixing hardware.

In addition, in the step of inserting the wire rope into the pressure plate, the wire rope is installed in a direction corresponding to a direction in which the wing member is spread to both sides.

Further, in the step of fixing the natural stone on the wire rope, the natural stones are respectively installed on the wire rope connected to both sides of the respective pressure boards.

According to the present invention as described above, the wing members coupled to the anchor bolts are expanded in the ground to improve the fixing force with the ground, thereby reducing the number of anchor bolts inserted into the ground, , Furthermore, there is no need to perform grouting treatment for holes drilled separately, and the construction period can be shortened.

1 is a perspective view of a soilless anchor having an excellent ground fixing force according to the present invention.
2 is an exploded perspective view of a soilless anchor having an excellent ground fixing force according to the present invention.
3 is a flowchart showing a procedure for installing a soilless anchor having an excellent ground fixing force on the ground according to the present invention.
4 is a view illustrating a process of installing a soilless anchor having excellent ground fixing force according to the present invention on the ground.
5 is a flowchart illustrating a procedure for installing a vegetation mat using a soil anchor according to the present invention.
6 is a view showing a state in which a vegetation mat using a soil anchor according to the present invention is installed.
Fig. 7 is a view showing a detailed structure enlarged the structure of part A of Fig. 6;
8 is a flowchart illustrating a procedure for installing an anchor retaining wall using a soilless anchor according to the present invention.
9 and 10 are views showing a state in which an anchor retaining wall using a soilless anchor according to the present invention is installed.

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

FIG. 1 is a perspective view of a soilless anchor having excellent ground fixing force according to the present invention, and FIG. 2 is an exploded perspective view of a soilless anchor having an excellent ground fixing force according to the present invention.

Referring to the drawings, a soilless anchor having an excellent ground fixing force according to the present invention includes an anchor bolt 10, a moving body 20, a wing member 30, and a nut body 40.

The anchor bolt 10 is formed to have a predetermined length along the longitudinal direction. The top end of the anchor bolt 10 is fastened with a hexagonal nut 12, and the threaded portion 11 is formed at the bottom end thereof.

The anchor bolt 10 is inserted into the through hole 21 of the moving body 20 along the longitudinal direction of the anchor bolt 10 so that the moving body 20 20 can be moved up and down.

The rotating body 20 is provided with pivotal coupling portions 22 on both sides of the movable body 20. The pivotal coupling portion 22 may have various types of coupling structures. In the present invention, The wing member 30 is formed as a pivot hole 23 on the first extended portion 20a which is bent downward so that the wing member 30 is fastened on the pivot hole 23 so that the wing member 30 So that it can be rotated.

The wing members 30 are disposed on both sides of the moving body 20 in a pair. The wing members 30 have a U-shaped cross-sectional structure like the moving body 20 and have both side ends bent inward, And the sliding surface 31 is formed at one end of the sliding surface 31. The insertion hole 32 corresponding to the pivot hole 23 is formed at the one end of the sliding surface 31, 23 so that the wing member 30 is rotatably coupled to the pivot hole 23 and an inclined surface 33 inclined inward is formed on the other end side of the sliding surface 31.

When the anchor bolts 10 are erected, the wing members 30 are brought into contact with each other so that the sliding faces 31 of the wing members 30 of the both sides face each other by gravity about the pivot hole 23 and the wing members 30 Are disposed so as to face each other.

In the present invention, as shown in the drawing, the wing member 30 is provided with a plurality of protruding protrusions 34 on its inner side, that is, on the sliding surface 31, Respectively.

The nut body 40 is formed with a coupling hole 41 for screwing into the lower thread 11 of the anchor bolt 10 on one side so that the nut body 40 is inserted into the lower end of the anchor bolt 10, And is fixedly installed on a predetermined height line of the bolt 10. The nut body 40 has a U-shaped cross-sectional structure corresponding to the moving body 20, and has a second extended portion 40a having both ends bent upward and extending to a predetermined length. The second extended portion 40a And a contact surface 42 which is in contact with each of the inclined surfaces 33 of the wing members 30 arranged on both sides is formed on both side surfaces adjacent to each other.

When the wing member 30 is completely unfolded, the nut body 40 is in contact with the end of the second extending portion 40a and the end of the first extending portion 20a to closely contact the nut body 40 and the moving body 20, So that a clearance space in which the wing members 30 can be rotated is formed inside.

FIG. 3 is a flowchart showing a procedure for installing a soil anchor having excellent ground fixing force according to the present invention on the ground, and FIG. 4 is a view illustrating a process for installing a soil anchor having a ground fixing force according to the present invention on the ground.

Referring to FIG. 4, a hole B is drilled on the surface of the sheet by a drill (not shown), and then the sheet anchor according to the present invention is inserted into the hole B (S310).

3 (b), the anchor punch A is inserted from the upper side of the anchor bolt 10 (S320), and then the upper end of the anchor punch A is struck by the operator (S330) the lower end of the anchor punch A is closely contacted with the moving body 20 to move the moving body 20 downward and the inclined face 33 of the wing member 30 is moved to the anchor bolt 10, The nut body 40 is slid on the contact surface 42 of the nut body 40 fixed to the lower end of the nut body 40 and is pushed toward both sides (S340).

3 (d) and 3 (e), the sliding surface 31 of the wing member 30 is continuously slid to the contact surface 42 of the nut body 40, And the contact surface 42 is fixed to the engaging protrusion 34 formed on the sliding surface 31. As shown in Fig. The latching jaw 34 functions as a stopper to prevent the wing member 30 from being folded in the opposite direction even if an external force is applied and the anchor bolt 10 is pulled outward.

As shown in FIG. 3 (f), the anchor punch A is detached and the periphery thereof is filled with soil-like filler material (S350), and a structure is installed at the upper end of the anchor sheet.

Although the wing member 30 is pulled outward by a structure such as a vegetation mat or a retaining wall that is fixed to the anchor on the ground while the wing member 30 is unfolded in the ground, tensile force is generated on the wing member 30, So that it is stably fixed.

6 is a view showing a state in which a vegetable mat using a soil anchor according to the present invention is installed, and FIG. 7 is a view showing a state in which a vegetable mat is installed using a soil anchor according to the present invention, A shows a detailed structure in which the structure of the portion is enlarged.

In order to install the vegetation mat, a seed layer and a vegetation layer are provided as shown in FIG. 6, and an upper part of the vegetation mat is covered with a top net to install the vegetation mat first (S510).

Then, a plurality of silo anchors according to the present invention are installed on the ground at regular intervals on the ground (S520 to S560). Then, a rope 60 made of a core or wire is attached to the upper surface of the upper net in one direction And the rope 60 is firmly fixed to the upper end of the anchor bolt 10 of the anchor anchor disposed at regular intervals along the longitudinal direction in which the rope 60 is placed with the fixing clip 50 S580).

Here, the fixing clip 50 has a U-shaped space for accommodating the rope 60 therein, and a fixing hole 51 is formed in the upper surface of the fixing clip 50 for insertion into the anchor bolt 10. The anchor bolt 10, The upper end portion of the anchor bolt 10 is detachably coupled to the anchor bolt 10 by the nut 12 so that the fixing clip 50 in a state where the rope 60 is fitted to both sides of the anchor bolt 10 is inserted into the upper end portion of the anchor bolt 10 The woog nut 12 is fastened with an anchor bolt 10 to fix the vegetation mat on the ground. As described above, the fixing clip 50 is tightened by the nut 12 to press the vegetation mat on the ground so that the tensile force is further exerted.

FIG. 8 is a flowchart illustrating a procedure for installing an anchor retaining wall using a soilless anchor according to the present invention, and FIGS. 9 and 10 are views showing a state in which an anchoring retaining wall using a soilless anchor according to the present invention is installed.

Referring to the drawings, an anchor retaining wall is formed by stacking natural stones C so as to form sidewalls in a river or a river. A plurality of holes B are formed in the ground to insert a soil anchor according to the present invention (S810 to S850 , The pressure plate 70 is installed at the upper end of the anchor bolt 10 (S860).

The support plate 70 is in the form of a flat plate which is in close contact with the ground and has a fixing hole 71 fixed to one side of the anchor bolt 10 and both ends of the support plate 70 are bent in one direction to have a U- And a binding hole 72 to which the wire rope 80 is bound is formed at both end portions bent as described above.

And the wire rope 80 is continuously inserted into the binding hole 72 formed at both ends of the support plate 70 and the adjacent sheet anchor 70 is inserted into the anchor bolt 10, The wire rope 80 is inserted again so that the wire rope 80 can be continuously connected to the pressure plate 70 in step S870.

A plurality of natural stones C are fixed on the wire rope 80 by using the fixed hardware 90 in a state where the wire ropes 80 are continuously connected to the plurality of soilless anchors S880.

As described above, according to the present invention, a plurality of natural stones C are fixed on the wire ropes 80 connected to the anchor anchors without fixing the natural stones C one by one to each of the soilless anchors, It is possible to reduce the number of the use anchor anchor to half or more than the conventional one.

As shown in the drawing, the natural stone C is not directly connected directly to the end of the anchor sheet but the one natural stone C is suspended on the wire rope 80 connected to both sides of the padding 70, So that the external force exerted on the anchor is dispersed to both sides, and in particular, the wire rope 80 is installed in a direction corresponding to the direction in which the wing member 30 of the anchor anchor is unfolded so that the force can be easily dispersed in the same direction can do.

The anchor bolts 10 are formed in the shape of a flat plate and fixed to the upper end of the anchor bolts 10 by fastening the nuts 12 at the upper portions of the anchor bolts 10, So that the tensile force is exerted to reinforce the ground fixing force.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims should include all such modifications and changes as fall within the scope of the present invention.

10: Anchor bolt 11: Threaded
12: Nut
20: moving body 20a: first extending portion
21: through hole 22:
23: Hole Pitch
30: wing member 31: sliding face
32: insertion hole 33: inclined surface
34:
40: nut body 40a: second extension part
41: engaging hole 42: contact surface
50: fixing clip 51: fixing hole
60: rope
70: Platen 71: Fixed ball
72: Bonding ball
80: Wire rope
90: Fixed hardware
A: Anchor punch
B: Perforation hole
C: Natural stone

Claims (7)

An anchor bolt having a predetermined length along a vertical direction and having a thread formed at a lower portion thereof;
A moving body having an anchor bolt inserted into a through hole formed on one surface thereof and movable along the longitudinal direction of the anchor bolt and having a pivotally coupled portion formed on both sides thereof;
And a sliding surface is formed along the longitudinal direction, and a continuous engagement protrusion of a concave-convex shape is formed on the sliding surface at a predetermined length A wing member formed at an other end of the sliding surface and formed as an inclined surface inclined inward;
A nut body having a coupling hole formed in a lower portion of the anchor bolt so as to be fixed to the anchor bolt and having a contact surface which is in contact with the inclined surface integrally formed on both sides; including,
When the anchor bolt is inserted into a hole having a hole of a predetermined size and the anchor punch is inserted from the upper side of the anchor bolt and then the upper end of the anchor punch is charged, As the movable body is pressed downward, the other end inclined surface of each wing member is brought into contact with the contact surface of the nut body fixed to the anchor bolt so that the wing member is spread to both sides, and the sliding surface of the wing member contacts the contact surface The wing member is unfolded at a predetermined angle while the contact surface of the nut body is fixed to the engaging jaw so that the wing member is not folded in the opposite direction even if the anchor bolt is pulled outwardly Is an excellent anchor for soils.
The method according to claim 1,
Wherein the first extending portion is bent downward at both side ends of the moving body, the wing member is fastened to the pivot hole formed on the first extending portion, the wing member is pivoted about the pivot hole,
The nut body has a U-shaped cross-sectional structure corresponding to the moving body, and has a second extending portion whose both end portions are bent upward. The nut body is formed on each of the inclined surfaces of the wing members arranged on both sides, A contact surface to be contacted is formed,
The end portion of the second extending portion and the end portion of the first extending portion are in close contact with each other to form a clearance space in which the wing member can be rotated inside the nut body and the moving body when the wing member is unfolded Is an excellent anchor for soils.
3. The method of claim 2,
The wing member has a U-shaped cross-sectional structure in which both end portions are bent inwardly as in the moving body. A sliding surface is formed on both side ends of the wing member, in which the nut body slides along the longitudinal direction,
And an insertion hole corresponding to the pivot hole is formed at one end of the sliding surface so that the rivet is coupled from the insertion hole to the pivot hole so that the pivot member is rotatably coupled about the pivot hole,
Wherein the anchor bolts are brought into contact with each other so that the sliding surfaces of the wing members of both sides are opposed to each other with respect to the pivot hole by gravity.
An anchor bolt formed in a predetermined length along a longitudinal direction and having a screw thread formed in a lower portion thereof; And a movable body having the anchor bolt inserted into the through hole formed on one surface thereof and movable along the longitudinal direction of the anchor bolt and formed with a pivotal coupling portion on both sides thereof. And a sliding surface is formed along the longitudinal direction, and a continuous engagement protrusion of a concave-convex shape is formed on the sliding surface at a predetermined length And the other end of the sliding surface has a wing member formed as an inclined surface inclined inwardly and a coupling hole for screwing the lower portion of the anchor bolt to be fixed to the anchor bolt, Inserting a soil anchor including a nut body integrally formed with a contact surface into a plurality of holes having a predetermined size;
Inserting an anchor punch into the hole from an upper side of the anchor bolt;
The lower end of the anchor punch is brought into close contact with the upper surface of the moving body by pressing the upper end of the anchor punch so that the moving body is pressed downward;
The moving body is moved downward so that the other end inclined surface of each wing member is brought into contact with the contact surface of the nut body fixed to the anchor bolt so that the wing member is spread to both sides and the sliding surface of the wing member is brought into contact with the contact surface The wing member is unfolded at a predetermined angle, and then the contact surface of the nut body is fixed to the engaging jaw;
Removing the anchor punch in a state in which the wing member is spread to both sides and filling a space inside the perforated hole with a filler;
Forming a vegetation layer composed of a seed layer and soil on a ground surface where the soil anchor is installed, and covering an upper portion of the vegetation layer with an upper net;
Arranging the rope in a predetermined direction on the upper net;
Securing the rope to the upper end of the anchor bolt using a securing clip; Wherein the vegetable mat is attached to the vegetation mat by means of a soil anchor.
An anchor bolt formed in a predetermined length along a longitudinal direction and having a screw thread formed in a lower portion thereof; And a movable body having the anchor bolt inserted into the through hole formed on one surface thereof and movable along the longitudinal direction of the anchor bolt and formed with a pivotal coupling portion on both sides thereof. And a wing member disposed on both sides of the moving body and having one end pivotally coupled to the respective pivoting engagement portions. Inserting a soilless anchor including a nut body fixedly attached to the anchor bolt into a plurality of holes having a predetermined size;
Inserting an anchor punch into the hole from an upper side of the anchor bolt;
The lower end of the anchor punch is brought into close contact with the upper surface of the moving body by pressing the upper end of the anchor punch so that the moving body is pressed downward;
The wing member being slidably attached to the nut body fixed to the anchor bolt while the moving body is moved downward and being spread on both sides in the ground;
Removing the anchor punch in a state in which the wing member is spread to both sides and filling a space inside the perforated hole with a filler;
Fixing an anchor bolt to the anchor bolt, the anchor bolt having a fastening hole formed at one side thereof and a fastening hole formed at both ends thereof;
The wire rope is continuously inserted into the binding holes formed at both ends of the padding, and the wire rope is continuously connected to the supporting plates of the adjacent sheet anchors;
Fixing a plurality of natural stones on the wire rope by using a fixed iron; Wherein the anchor retaining wall is provided with an anchor.
6. The method of claim 5,
In the step of inserting the wire rope into the platen,
Wherein the wire rope is installed in a direction corresponding to a direction in which the wing member is deployed on both sides.
The method according to claim 6,
In the step of fixing the natural stone on the wire rope,
Wherein each of the natural stones is installed on a wire rope connected to both sides of the respective pressure plates.

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