KR100978629B1 - Soil nailing for reinforce slope and method for reinforce slope using thereof - Google Patents

Abstract

PURPOSE: A slope reinforcing nailing for a road and a complex and a slope reinforcing method using the same are provided to efficiently reinforce the ground by securely installing a fixing head. CONSTITUTION: A slope reinforcing nailing for a road and a complex comprises a nail bar(10) of a reinforcing bar, a push bar(20), a fixing head(30), a fixing wing(40), and a push ring(50). The push bar is separably connected to the nail bar. The fixing head is fixed to the inner wall of the nail bar and guides the rotation of the push bar. The fixing wing is expanded by the push bar. The push ring pushes the fixing wing toward the fixing head when the push bar is rotated.

Description

Slope reinforcement nailing of roads and complexes and slope reinforcement method using the same {SOIL NAILING FOR REINFORCE SLOPE AND METHOD FOR REINFORCE SLOPE USING THEREOF}

The present invention relates to a nailing, and more particularly, to firmly fix the fixing head to prevent idling during rotation of the nailing, thereby improving the ground reinforcement workability by nailing and securing the stability of the ground, The present invention relates to a slope reinforcement nailing of roads and complexes, and a slope reinforcement method using the same, which can reduce city park prices by using ready-made reinforcing bars without machining threads.

In general, excavation support system required for construction of civil engineering facilities such as reinforcement of natural and artificial slopes adjacent to trenches, muds, railroads and roads, underground structures and tunnels, repair of existing retaining walls and construction of retaining walls Ring-nailing

method) is a series of reinforcement work through the process of excavation or cutting, and excavation is performed at a stable height that can be independent of slope or excavation surface, and at the same time, the surface protection surface is made by shortcrete (shortcrete). Constructs and drills the back of the excavation to insert nails and grout them to form reinforcement.

The nailing device according to the prior art is a form in which a steel rod is inserted into a plurality of resin hollow tubes connected by a plurality of resin sockets. The plurality of sockets and the hollow tube are alternately connected.

Before the nailing device is installed on the drilling side, a deep nail hole is drilled in the downwardly inclined direction, and the nailing device is inserted into the drilling side. After the nailing device is inserted, grout such as cement paste and cement mortar is filled between the outer surface of the nailing device and the inner circumferential surface of the nail hole. The grout surrounding the outer surface of the nailing device is cured to form a concrete pile with the nailing device. After the grout is hardened, the pressure plate is inserted into the bar of the nail nail protruding out of the excavation side, and the construction of the nailing device is completed by fixing with a coupler and a bolt. Therefore, the steel rod in the nailing device is coupled to the socket or the hollow tube so as not to move in the longitudinal direction of the nail hole with respect to the socket and the hollow tube.

However, the nailing apparatus according to the prior art has the following problems.

In order to solve this problem, a nailing has been proposed in which the fixing blade is expanded and the nail is fixed on the ground.

In the nailing according to the prior art, the fixing head is fixed so that the fixing blade does not rotate together with the nail rod or the fixing head when the nail is rotated, and the fixing head is fixed when pressing the nail rod for fixing the fixing head. Previously, the anchoring blades were extended to prevent firm fixation. In addition, there is a problem in that the connection between the nail bar and other materials is broken by forcibly pressing the nail bar.

In addition, rebar is usually used as a nail bar. In order to use reinforcing bars, a screw thread must be machined on the outer circumferential surface of the rebar.

The present invention is to solve the problems as described above, it is possible to fix the fixing wing through the reinforcing nail bar as well as to move by a certain width to firmly fix the fixing head in the ground and protect the connection of the material The purpose of the present invention is to provide slope reinforcement nailing of roads and complexes and slope reinforcement methods using the same.

In addition, another object of the present invention is to use the ready-made reinforcing bar as it is to reduce the cost of using the threaded reinforcing bar.

Slope reinforcement nailing of roads and complexes according to the present invention for achieving the object as described above, and the nail bar of the reinforcing bar formed in the longitudinal direction on the outer peripheral surface; A push rod connected to the distal end of the nail rod and having a first screw portion; A fixing head having a second screw portion screwed to the first screw portion of the push rod on an inner circumferential surface thereof, a first inclined portion formed on an outer circumferential surface thereof and fixed to the ground inside the nail hole; A second inclined portion that is slidable on the inner circumferential surface is formed to include two or more fixing wings coupled to the circumference of the fixing head, the push rod is a cylindrical nail bar connecting tube, the nail bar connecting tube A connecting rod fixed to the outer circumferential surface and having a first threaded portion screwed to a second screw portion of the fixing head, the nail rod being inserted into the nail rod connecting rod and the first wedge inclined surface formed on the inner circumferential surface of the conical housing, wherein Inserted into the nail bar connecting tube and the cone housing, the outer peripheral surface is provided with a second wedge inclined surface that is in surface contact with the first wedge inclined surface of the cone housing, and the inner fastening convex concave structure, push the reinforcing fastening cone toward the cone housing It characterized in that it comprises an elastic member for fixing the nail rod and the push rod.

According to the slope reinforcement nailing of roads and complexes according to the present invention, and the slope reinforcement method using the same, the nail rod can be moved forward and backward by a predetermined width through the elastic member, so that the fixing head is firmly grounded when the anchoring head is pressed to fix the ground. It can be settled, and thus, can prevent the idling during the rotation of the nail ring to improve the ground reinforcement workability by the nailing and to ensure the stability of the ground, it is possible to prevent the nailing and push rod breakage have.

In addition, since the inexpensive reinforcing bar is used as a nail bar without processing the reinforcing bar, the city park can be reduced.

1 is a perspective view of the slope reinforced nailing of the road and the complex according to the present invention.
Figure 2 is an exploded perspective view of the slope reinforcement nailing of the road and the complex according to the present invention.
3 is a cross-sectional view of the slope reinforced nailing of the road and the complex according to the present invention.
Figure 4 is an operational state diagram of the slope reinforcement nailing of the road and the complex according to the present invention.

As shown in Figures 1 to 3, the slope reinforcement nailing 100 of the road and the complex according to the present invention, the push rod that is detachably connected to the nail bar 10, nail bar 10 of the rebar ( 20) is fixed to the inner wall surface of the nail ball (1) is extended by the fixing head 30, the push rod (20) to induce the rotation of the push rod 20, nailed to the ground around the nail ball (1) It consists of a fixing wing 40 which is. In addition, a push ring 50 for pushing the fixing blade 40 toward the fixing head 20 may be included when the push rod 20 is rotated.

Nail bar 10 is used as a reinforcing bar, in particular, the steel bar is used as it is without processing the thread on the outer peripheral surface of the rebar. Therefore, it is possible to reduce the expensive cost for machining the thread on the rebar.

Push rod 20 is to extend the fixing wing 40 by rotating with the nail rod 10 by the rotational force of the nail rod 10, nail bar 10 because it is a single piece separated from the nail rod 10 It does not need to lengthen excessively and is a configuration that can be used as it is. Although the threaded portion is formed in the connecting rod as described below, the connecting rod may be a ready-made product and thus the cost is low.

The push rod 20 is fixed to the cylindrical nail rod connecting rod 21, nail rod connecting rod 21 and the first screw portion 22 is screwed to the second screw portion 31 of the fixing head 30 on the outer peripheral surface The connecting rod 23 is formed, the nail rod 10 is inserted into the nail rod connecting rod 21 is screwed to the inner circumferential surface is formed of a cone housing 24 formed with a first wedge inclined surface (24a).

The cone housing 24 may consist of a cylindrical or a combination of two semicircular cylinders. Here, the node 11 formed on the periphery of the nail rod 10 on the inner surface of the cone housing 24 so that the nail rod 10 does not idle through the firm coupling of the reinforcing nail rod 10 and the cone housing 24. An anti-separation jaw may be formed.

Nail rod 10 and push rod 20 is bound through the reinforcing bar fastening means. The rebar fastening means should be configured such that the nail rod 10 does not break away from the push rod 20 and does not idle, for example, may be composed of a wedge cone 25 and an elastic member 26.

The wedge cone 25 is inserted into the nail bar connecting tube 21 and the cone housing 24 and the second wedge inclined surface 25a which is in surface contact with the first wedge inclined surface 24a of the cone housing 24 on the outer circumferential surface thereof. The inner peripheral surface is provided with an uneven structure (for example, a screw thread). The wedge cone 125 is installed to be movable along the axial direction of the nail rod 10 in the space inside the nail bar connecting tube 21 and the cone housing 24, one or two or more of the nail rod 10 Can be disposed along the perimeter.

The elastic member 26 advances the wedge cone 25 toward the cone housing 24 by the elastic force so that the wedge cone 25 tightens the nail rod 10 by the first and second wedge slopes 24a and 25a. do.

The fixing head 30 has a first screw portion 31 formed on the outer circumferential surface thereof, and a second screw portion 32 on which the first screw portion 22 of the connecting rod 23 of the push rod 20 is screwed is formed on the inner circumferential surface thereof. .

The fixing head 30 is provided with one or more anchor protrusions 33 at the tip portion thereof so as not to rotate together with the nail rod 10 when the nail rod 10 rotates. Anchor protrusions 33 are preferably formed of two or more and are embedded in the ground to prevent the rotation of the fixing head (30).

The fixing wing 40 is composed of two or more arranged in a line in the circumferential direction on the circumferential portion of the fixing head 30, and on the inner circumferential surface so as to extend on the first inclined portion 31 of the fixing head 30. The second inclined portion 41 is provided. A plurality of fixing blades 40 are fixed and used through a band, etc., the band is broken when the fixing blade 40 is expanded.

The push ring 50 is to advance the fixing blades 40 during the rotation of the nail bar 10, it can be installed in the connecting rods 23 so as to be idling through the bearing. In addition, a bearing may be installed between the nail bar connecting cylinder 21. Therefore, the push ring 50 pushes the fixing blade 40 while advancing along the nail bar 10 when the nail bar 10 moves forward and rotates.

Third and fourth inclined portions 51 and 42 may be formed on opposing surfaces of the push ring 50 and the fixing head 40. The third and fourth inclined portions 51 and 42 are formed to be inclined in the direction opposite to the first and second inclined portions 31 and 22 while extending in the fixing blade 40.

Slope reinforcement method using the slope reinforcement nailing of roads and complexes according to the present invention is as follows.

(S10) Nail hole perforation.

Where the reinforcement of the slope is required by using a punching machine to drill a plurality of nail holes (1) at regular intervals.

(S20) nailing installation.

Insert the nail ring 100 into the interior of the nail ball (1).

A plurality of fixing blades 40 are coupled to the circumference of the fixing head 30 through the band does not occur when the nailing 100 is inserted into the nail hole (1), anchoring projection of the fixing head 30 Insert nailing 100 until 33 is lodged in the inner ground of nail ball 1.

(S30) Nailing settled.

When the nail rod 10 is turned in one direction, the nail rod 10 and the push rod 20 rotate together, and the push rod 20 is fastened to the fixing head 20 through the first and second screw parts 22 and 32. do.

The fixing head 30 may not rotate in the nail hole 1 through the anchor protrusion 33. In detail, when the nail bar 10 is pressed into the ground, the anchor protrusion 33 of the fixing head 30 becomes lodged in the ground, and at this time, the nail rod 10 compresses the elastic member 26 to fix the fixing head. No damage occurs between the nail rod 10 and the push rod 20 by pressing the 30, and the fixing force of the fixing member 30 is completed and the elastic force of the elastic member 26 is removed when the force applied to the nail rod 10 is removed. By the nail bar 10 is reversed by the wedge cone 25, the nail bar 10 and the push ring 20 is firmly bound.

When the nail bar 10 is advanced, the push rod 20 (or the push ring 50) moves forward together, and thus the fixing blade 40 slides by the first and second inclined portions 31 and 41. do. At this time, the fixing head 40 receives the force in the extending direction by the third and fourth inclined portions 51 and 42 of the push ring 50 and the fixing head 40. In other words, the first and second slopes Since the portions 31 and 22 and the third and fourth inclined portions 51 and 42 are opposite to each other and are directed toward the fixing head 40 therebetween, the expansion of the fixing head 40 can be naturally and quickly made. And can increase anchorage. The nail rod 10 is firmly bound to the push rod 20 through the wedge cone 25 so that the cone housing 24-the push ring 20 may rotate together when the nail rod 10 rotates.

As the fixing wing 40 expands, the fixing blade 40 gets stuck in the ground around the nail hole 1 to generate fixing force (see FIG. 4).

On the other hand, if the nailing 100 is to be drawn to the ground by ground subsidence or earth pressure after the construction of the nailing 100, the fixing head 30 will try to move to the ground (left of the drawing reference), in this case, the fixing wing ( 30) is further extended by the first and second inclined portions 31 and 22, thereby preventing or delaying the settlement of the ground.

1: nail ball, 10: nail stick
20: push rod, 21: nail rod connecting tube
23: connecting rod, 24: cone housing
25: wedge cone, 26: elastic member
30: fixing head, 40: fixing wing
50: push ring,

Claims (5)

Nail bar 10 of the reinforcing bar formed in the longitudinal and transverse direction on the outer circumferential surface;
A push rod 20 connected to and fixed to a distal end of the nail rod and having a first screw portion 22;
The second screw portion 32 is screwed to the first screw portion of the push rod is formed on the inner circumferential surface and the first inclined portion 31 is formed on the outer circumferential surface and the fixing head 30 is fixed to the ground inside the nail hole (1) and ;
A second inclined portion 41 slidable on the first inclined portion on an inner circumferential surface thereof and includes two or more fixing blades 40 coupled to the circumference of the fixing head,
The push rod is a connecting rod 23 having a cylindrical nail rod connecting rod 21, a first screw portion 22 fixed to the nail rod connecting cylinder and screwed to a second screw portion of the fixing head on an outer circumferential surface thereof, The nail rod is inserted into the nail housing connecting the screw rod and the first housing wedge slope (24a) formed on the inner circumferential surface, the first wedge of the cone housing on the outer circumferential surface is inserted into the nail housing and the cone housing The second wedge inclined surface 25a which is in surface contact with the inclined surface and the inner circumferential surface is a reinforcing bar cone 25 having an uneven structure, and an elastic member 26 for pushing the reinforcing bar cone toward the cone housing to fix the nail bar and the push bar. Slope reinforcement nailing of roads and complexes characterized in that it comprises a). The road of claim 1, wherein a push ring 50 is interposed between the nail rod connecting tube of the push rod and the fixing blade and pushes the fixing blade toward the fixing head when the nail rod and the push rod are rotated. Slope reinforcement nailing of the jar. 3. The road of claim 2, wherein third and fourth inclined portions are formed on opposing surfaces of the push ring and the fixing head so that the fixing head extends through the third and fourth inclined portions 51 and 42. Slope reinforcement nailing of the jar. The slope reinforcement nailing of roads and complexes according to claim 3, wherein the inner circumferential surface of the cone housing is provided with a release preventing jaw supporting the nodes of the nail bar. A first step of drilling a plurality of nail holes at a predetermined interval on the slope;
A second step of fixing the fixing head by anchoring projections by inserting the slope reinforcement nailing of the road and the complex according to any one of claims 1 to 4 into the nail holes drilled in the first step, respectively;
And a third step of rotating the nail rods of the slope reinforcing nailing of the road and the complex so that the fixing blades extend on the fixing head and settle in the ground. Slope reinforcement method

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