KR100680113B1 - Slope reinforcement wedge anchors on roads and complexes - Google Patents

Abstract

The present invention relates to a slope-reinforced wedge-type anchor of roads and complexes, and secures a great stiffness by means of slope-reinforced wedge-type anchors of roads and complexes that get stuck in anchor holes when tensioning the tension member. Slope reinforcement of the wedge-type anchor aims to prevent breakage of the body.

Slope reinforcing wedge-type anchor of the road and the complex according to the present invention, the fixing head 10 is inserted into the anchor hole; At least one tension member having a front end fixed to the fixing head and a rear end connected to a tensioning means outside the anchor hole to tension the fixing head; A first anchor body (30) having a tip portion fixed to a rear side of the fixing head and having an inclined portion (31) on an inner circumferential surface thereof; A second anchor body (40) having an inclined portion (41) slidably coupled to an inclined portion of the first anchor body in a symmetrical shape with the first anchor body; Including the packer 50 for sealing the anchor hole and for supporting the second anchor body, when the tension member is drawn out and sliding in the direction in which the first and second anchor bodies are collected, the first and second anchor bodies are opened to the outside of the circle. The entire 1,2-anchor body is embedded in the anchor hole to generate a holding force.

Description

Slope reinforcement wedge anchors for roads and complexes {The anchor}

1 is an external perspective view of a slope-reinforced wedge-type anchor of a road and a complex according to the present invention.

Figure 2 is a side view of the slope reinforced wedge-type anchor of the road and the complex according to the present invention.

Figure 3 is a side cross-sectional view of the slope-reinforced wedge-type anchor of the road and complex according to the present invention.

Figure 4 is a front sectional view of the slope reinforced wedge acupressure anchor of the road and complex according to the present invention.

Figure 5 is a block diagram showing the eccentric control plate applied to the slope reinforced wedge acupressure anchor of the road and the complex according to the present invention.

Figure 6a and Figure 6b is an operational state diagram of the slope-reinforced wedge-type anchor of the road and complex according to the present invention, respectively.

<Description of Symbols for Main Parts of Drawings>

10: fixing head, 20: tension member

30,40: anchor body, 31,41: inclined portion

32, 42: protrusion, 33, 43: uneven portion

34,44: stopper, 35,45: eccentric control plate

50: packer, 60: band

The present invention relates to a slope-reinforced wedge-type anchor of roads and complexes, and more specifically, to the pull-out of the slope-reinforced wedge-type anchors of roads and complexes is not wedge-shaped by grout It is made by the slope-reinforced wedge-type anchoring body of roads and complexes that are driven into the ground, so that the slope-reinforced wedge-type anchors of the roads and complexes do not escape from the anchor hole even in the soft ground. It relates to a slope-reinforced wedge-type anchor of roads and complexes in which the wedge-type anchoring body of the road and complex is not broken when the wedge-type anchor is drawn out.

In general, anchors are used to prevent the collapse of the incision surface at the incision site and slope stability, to prevent the groundwater of large structures such as buildings or dams, to prevent the collapse of the excavating wall surface in the underground construction of large buildings, and also to prevent earthquakes. It is installed to prevent the movement or distortion of the structure when constructing a building or a large steel tower.

The anchor method drills an anchor hole using a perforator on a ground that may be collapsed, inserts a grout hose, a plurality of tension members, and a load-bearing body into one unit and inserts the grout hose into the unit. When the grout is injected and the injected grout is cured together with the lower body, the fastener is fastened to the other end of the tension member and the tension member in the strand is tensioned using hydraulic equipment to stabilize the target structure.

Such anchors support the tensile force from the surface by the ground pressure of the grouting or frictional forces with the ground.

In this anchor construction, the components of the slope-reinforced wedge-type anchors of roads and complexes are anchors that exert the required stresses, free parts that transmit stresses exerted in the anchorages, and fixtures that act on the structures. Are distinguished. Among these components, the anchoring part is determined by the adhesion resistance of the ground, cement grout, cement grout and tension member. The free part used in the anchoring method may be made of, for example, a tension member coated with a wire rope in which a plurality of steel wires are twisted.

However, the anchor according to the prior art has the following problems.

The anchor according to the prior art is to give the stiffness to the pull out by the bearing pressure of the grout, there are a number of joints around the anchor hole in which the anchor is inserted according to the state of the ground. Therefore, since the grout is filled by the injection pressure, when injected into the anchor hole, the grout leaks from the anchor hole through jointing, thereby lowering the filling rate inside the anchor hole, thereby failing to substantially reinforce the ground. At this time, even if the joint is formed only in a part, since the entire area inside the anchor hole is one space, voids are generated in the grout filled in the entire area of the anchor hole, thereby preventing reinforcement. Here, since there is no way to measure the strength inside the anchor hole, the construction proceeds without recognizing the presence of voids, and eventually a large accident due to ground collapse may occur.

In addition, since the outer circumferential surface of the anchor is generally a flat surface, a separation phenomenon occurs between the grout and the anchor, so that the anchor is drawn from the anchor hole when the tension member is tensioned, and the ground is collapsed as a result.

In order to solve this drawback, the slope-reinforced wedge-type anchors of roads and complexes in which a plurality of wedge wings are wedge-shaped into the ground to exert a support force have been proposed.

However, in the anchor according to the prior art, since one end of the wedge wings is fixed to the anchor and the free end rotates, the free end of the wedge wings is flipped or broken when being pulled out.

The present invention is to solve the above-mentioned conventional problems, to be embedded in the ground by the pullout of the tension material to be embedded in the ground to generate a support force, the slope of the slope reinforced wedge-type anchor of the road and the complex is drawn into the ground The purpose of the present invention is to provide a four-sided wedge-type anchor for reinforcement of roads and complexes to effectively reinforce soft grounds with joints or pupils by increasing the support force.

In addition, another object of the present invention is to ensure that the slope-reinforced wedge-type anchoring bodies of roads and complexes exerting the propulsion force are not bent or broken at an angle at which the propulsion force cannot be exerted.

Slope reinforcing wedge-type anchor of the road and the complex according to the present invention provided to achieve the above object, the fixing head is inserted into the anchor hole; At least one tension member having a front end fixed to the fixing head and a rear end connected to a tensioning means outside the anchor hole to tension the fixing head; A slope-reinforced wedge-type anchor body of roads and complexes, which are formed by the pulling force of the fixing head when the tension member is tensioned and is embedded in the anchor hole to generate a support force; It characterized in that it comprises a packer for sealing the anchor hole.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in Figures 1 and 2, the slope-reinforced wedge-type anchor 100 of the road and the complex according to the present invention, the fixing head 10 is inserted into the anchor hole (A), and the tip is fixed One or more tension members 20 fixed to the head 10 and connected to tensioning means (not shown) outside the anchor hole A to tension the fixing head 10, and to the rear side of the fixing head 10. The front end portion is fixed and slidable to the inclined portion 31 of the first anchor body 30 in a symmetrical form with the first anchor body 30 having the inclined portion 31 on the inner circumferential surface thereof. When the inclined portion 41 is connected, the fixing head 10 and the first anchor body 30 are slid through the inclined portions 31 and 41 to be pulled out and are stuck in the anchor hole A to generate a supporting force. The packer 50 which seals the 2nd anchor body 40 and the inlet side of the anchor hole A, and supports the 2nd anchor body 40 so that it does not push is comprised.

When the first and second anchor bodies 30 and 40 are symmetrically coupled up, down, left and right to face the inclined portions 31 and 41 as the same shape of the arc-shaped cross section, they form a cylindrical shape.

When the first and second anchor bodies 30 and 40 are inserted into the anchor hole A, the first and second anchor bodies 30 and 40 are wound with the band 60 so that the first and second anchor bodies 30 and 40 may be kept in a coupled state without being spaced apart from each other. . Of course, the band 60 has a strength that is broken by the opening of the first and second anchor bodies 30 and 40 when the fixing head 10 and the first anchor body 30 are drawn out.

The first and second anchor bodies 30 and 40 are initially spaced apart from each other in consideration of the movement distance due to the tension of the tension member 20 in the initial stage (before tensioning of the tension member), and then, when the tension member 20 is tensioned, they are collected. While moving in the direction of the outer circle is to be embedded in the anchor hole (A).

As shown in FIG. 4, when the first and second anchor bodies 30 and 40 move in the collecting direction in contact with the inclined portions 31 and 41, the first and second anchor bodies 30 and 40 are respectively arced. Since the shape may be shifted like an imaginary line, protrusions 32 and 42 are formed at both sides of the opening of the first and second anchor bodies 30 and 40 to prevent this. That is, the width W1 of one side of both sides of the first and second anchor bodies 30 and 40 is greater than the width W2 of the opening of the first and second anchor bodies 30 and 40 by the protrusions 32 and 42. Since it is wide, the 1st, 2nd anchor bodies 30 and 40 do not shift.

When the first and second anchor bodies 30 and 40 are stuck in the anchor hole A, the holding force is exerted by the frictional force between the first and second anchor bodies 30 and 40 and the inner wall surface of the anchor hole A. In addition, in order to increase the holding force by the first and second anchor bodies 30 and 40, the uneven parts 33 and 43 are further formed on the outer circumference of the one or more first and second anchor bodies 30 and 40. That is, while the convex portions 33a and 43a of the concave-convex portions 33 and 43 are lodged in the anchor hole A, the soil of the anchor hole A is filled in the concave portions 33b and 43b, thereby exerting a holding force.

In addition, when the first and second anchor bodies 30 and 40 are opened while sliding along the inclined portions 31 and 41, the inclined portion 31 is not slid further from the first and second anchor bodies 30 and 40. Stoppers 34 and 44 are formed at the ends of 41. The stoppers 34 and 44 may be formed at the ends of the inclined portions 31 and 41 at an angle greater than that of the inclined portions 31 and 41.

As shown in FIG. 5, since the overall thickness of each of the first and second anchor bodies 30 and 40 is different through the inclined portions 31 and 41, the fixing head 10 and the first anchor are tensioned by the tension of the tension member 20. When the sieve 30 is drawn, a force to rotate is generated. In this case, the first and second anchor bodies 30 and 40 may not be fixed in the anchor hole A along the axial direction, and the first and second anchor bodies 30 and 40 may easily fall into the anchor holes A. In order to prevent this, the eccentric control plates 35 and 45 may be coupled to the outside of the first and second anchor bodies 30 and 40, respectively.

The construction of the slope-reinforced wedge-type anchor of the road and the complex according to the present invention configured as described above is as follows.

(S10) Anchor hole (A) perforation. In order to prevent the collapse of the ground during civil construction, using a perforator to drill the anchor hole (A) for the installation of the wedge-type anchor 100 of the slope reinforcement of roads and complexes in the ground.

(S20) Slope reinforcing wedge acupressure anchor 100 insertion of roads and complexes. The slope-reinforced wedge-type anchor 100 assembly of roads and complexes is inserted into the anchor hole (A). Slope reinforcing wedge acupressure anchor of roads and complexes because the first and second anchors 30 and 40 are not wound up and unfolded by the band 60 when inserting the reinforcement wedge acupressure anchor 100 of roads and complexes 100 is naturally inserted into the anchor hole (A).

(S30) Anchor hole (A) sealed. When the hydraulic and milk are injected into the packer 50, the packer 50 is expanded and the inlet side of the anchor hole A is sealed by the packer 50.

(S40) tensile. When the tension member 20 is gradually tensioned through the tension means (not shown) in the state of FIG. 6A, the tension member 20 is tensioned and the first anchor body 30 is anchored with the fixing head 10. Will move outwards. At this time, when the first and second anchor bodies 30 and 40 are contacted through the inclined portions 31 and 41 and the first anchor body 30 is drawn, the first and second anchor bodies 30 and 40 are drawn by the inclined portions 31 and 41. 40 is pushed out of the anchor hole (A) without being pushed out of the anchor hole (A) (see Figure 6b).

The first and second anchors 30 and 40 are tensioned through the tensioning means in the state of being embedded in the anchor hole A, and when the tensile force reaches the set value, the tension force through the tension member 20 is maintained.

When ground subsidence, collapse, etc. in this state occurs, the fixing head 10 is pulled out because the tension member 20 is in a state where a predetermined amount of tensile force is applied. Therefore, as the first anchor body 30 is drawn together with the fixing head 10, the first and second anchor bodies 30 and 40 are collected and spread out to the outside of the circle so that the first anchor body 30 is wedge-shaped. It can be reinforced to generate more support force.

As described above, according to the present invention, the slope-reinforced wedge-type anchors of roads and complexes, the slope-reinforced wedge-type anchor body of the roads and complexes when the tension member is tensioned, do not depend on the grout bearing pressure. Exerts the force to be embedded in the ground as it opens, and in particular, as the pulling force is applied to the slope reinforcing wedge acupressure anchors of roads and complexes, while the slope reinforcement wedge anchors of roads and complexes are installed As the stiffness of the wedge-type anchor body increases, the ground can be effectively reinforced even if the ground is soft or weak over time, thereby preventing safety accidents.

In addition, since the first and second anchor bodies are driven by sliding, they are not damaged during drawing, so the durability of the material can be improved.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (4)

A fixing head 10 inserted into the anchor hole; At least one tension member 20 having a front end fixed to the fixing head and a rear end connected to tensioning means outside the anchor hole to tension the fixing head; A first anchor body (30) having a tip portion fixed to a rear side of the fixing head and having an inclined portion (31) on an inner circumferential surface thereof; A second anchor body (40) having an inclined portion (41) slidably coupled to an inclined portion of the first anchor body in a symmetrical shape with the first anchor body; And, including the packer 50 for sealing the anchor hole and for supporting the second anchor body, when the pullout of the tension member is slid in the direction of gathering with the first and second anchor bodies to be opened out of the circle Slope anchorage wedge-type anchor of the road and the complex, characterized in that the entire first and second anchor body is embedded in the anchor hole to generate a support force. The method of claim 1, Eccentric control plates 35 and 45 are further formed at outer ends of the first and second anchor bodies so that the first and second anchor bodies do not rotate when the first and second anchor bodies are slid. Slope-reinforced wedge-type anchors. The method of claim 2, wherein the first and second anchor bodies, Reinforcing wedge-type anchors of slopes of roads and complexes, each of which consists of arc-shaped cross sections to form a circle by mutual coupling. The first and second anchor bodies of claim 3, wherein the width W1 of one side of the openings is formed to be wider than the width of the opening W2 of the other anchor body so that the first and second anchor bodies are not shifted from each other. Slope reinforcement wedge-type anchor of road and complex characterized in that the.

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