KR101838803B1 - Packer assembly with anchor and construction method for repairing crack using the same - Google Patents

Abstract

The present invention relates to an anchor and a packer assembly for repairing cracks by injecting a repair liquid inserted into a hole formed in a concrete structure or rock formed by cracking and supplied from an injector connected to the rear, A body portion formed with a wedge portion having a screw on an outer side in order from front to back, a tubular portion having a larger diameter than the wedge portion, a cutting portion, and a nipple; A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow; An anchor coupled to a front wedge portion of the body portion; And a sealing ring provided between the anchor and the tubular portion, wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge portion, Wherein an anchored portion of the anchor is expanded and fixed to the hole as the anchor is threaded, and the seal ring is expanded in diameter to seal the hole, and a crack repairing method using the same .
The present invention can be configured to include the injection path in the center and including the wedge portion, the tubular portion, the cutting portion, and the body portion formed with the nipple, the check valve, the anchor, and the sealing ring, As the wedge is inserted into the hole and the wedge is screwed to the anchor, the anchor expands and is firmly fixed to the hole and the diameter of the sealing ring is expanded to seal the hole to prevent the maintenance fluid supplied from the injector from leaking, It is possible to provide a simple, efficient, and economical way to repair the cracks.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an anchor and a packer assembly,

The present embodiment relates to an anchor and a packer assembly and a crack repairing method using the same.

Generally, cracks occur in concrete structures due to drying shrinkage of concrete, repetition of freezing and thawing, infiltration of brine or acidic materials, corrosion of reinforcing bars, and the like.

Therefore, there are various methods of repairing cracks in concrete structures in order to prevent further cracking when cracks occur in concrete structures and to prevent water leakage caused by cracks and collapse of concrete structures. Typically, .

In the method using the packer, a crack is punctured in a crack part of a concrete structure, a packer is inserted into the hole, and an injector is connected to the packer to repair a crack of the concrete structure.

However, the hole drilled to insert the packer is usually formed to have a larger diameter than the packer. Therefore, it is difficult to firmly fix the packer in the hole, and thus the problem of releasing the packer or flowing out the maintenance liquid occurs.

In addition, the above-mentioned prior art finishes by removing the packer after completion of the injection of the remedial liquid, or by cutting the protruded portion of the concrete structure outward from the surface of the concrete structure. At the same time, when a reinforcing material is installed to reinforce the concrete structure more structurally, it is necessary to fix the reinforcing material by using a fixing mechanism such as an anchor separately, so that the work is complicated, cumbersome, and the construction period becomes long and inefficient.

Patent 1: Korean Patent No. 10-1180724

In order to solve the above-described problems, the present invention is characterized in that the injection path is provided at the center and includes a body portion formed with a wedge portion, a tubular portion, a cutting portion, and a nipple, a check valve, an anchor, And the wedge part is screwed to the anchor so that the anchor is extended and fixed firmly to the hole and the diameter of the sealing ring is expanded to seal the hole to prevent the maintenance fluid supplied from the injector from flowing out, The present invention provides an anchor and a packer assembly for repairing a crack of a concrete structure in a simple, efficient, and economical manner because a reinforcing material and the like can be easily installed without a separate anchor.

It is also an object of the present invention to provide an anchor and a packer assembly capable of installing a reinforcing member and an angle on a concrete structure without a separate process by providing a threaded portion between the tubular portion and the cutting portion.

It is another object of the present invention to provide a packer assembly for anchors and a method of repairing cracks using the same, which can easily and easily rotate the body part and fix the packer assembly to the hole by providing the fastening part between the cutting part and the nipple.

Further, since the sealing ring is disposed on the rear side of the body portion by providing the adjusting pipe between the sealing ring and the anchor, the anchor and the packer assembly can be more firmly fixed and supported because the maintenance fluid can flow into the rear portion of the body portion. And to provide a repair method using cracks.

Also, by providing the washer at the rear of the sealing ring, the tubular portion and the sealing ring can be spaced apart from each other to allow the body portion to rotate well, and anchors and a repair method using the same.

In addition, by forming a projection on the rear surface of the washer, the surface where the washer and the tubular portion are in contact with each other is reduced, and the tubular portion can be rotated while being rotated when the body portion rotates, .

Also, it is an object of the present invention to provide an anchor and a packer assembly capable of more firmly fixing a reinforcing member coupled to a body portion by joining a horizontal angle to the rear of the body portion, do.

Also, it is an object of the present invention to provide an anchor and a packer assembly capable of quickly, conveniently, and firmly fixing a wire mesh or the like to the rear of a body by engaging a vertical angle to the rear of the body, and a crack repairing method using the same.

In addition, the anchor and the packer assembly, in which the cost is reduced by inserting and fixing the anchoring anchor instead of the anchor and the packer assembly in the holes of some of the plurality of holes formed in the concrete structure, that is, And to provide a repair method.

An anchor and a packer assembly according to an example of the present invention is characterized in that a repair fluid supplied from an injector inserted in a hole formed in a concrete structure or a rock having cracks is injected into the hole, Wherein the wedge portion is formed with a screw on the outer side in order from front to back, a tubular portion having a larger diameter than the wedge portion, a cutting portion, And a body portion having a nipple formed thereon; A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow; An anchor coupled to a front wedge portion of the body portion; And a sealing ring provided between the anchor and the tubular portion, wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge portion, As the nut is screwed into the anchor, an incised portion of the anchor is expanded and fixed to the hole, and the sealing ring expands in diameter to seal the hole.

Further, it is preferable that the sealing ring is disposed on the rear side of the body portion, further comprising an adjusting pipe provided between the sealing ring and the anchor.

Further, it may further comprise a washer provided at the rear of the sealing ring.

In addition, the washer may have a circumferential protrusion formed on the rear surface thereof, so that the washer slips well with the tubular portion.

The apparatus may further include a threaded portion provided between the tubular portion and the cutting portion.

Further, it may further comprise a coupling part provided between the cutting part and the nipple.

Further, it is preferable that the apparatus further comprises a horizontal angle coupled to the rear of the body portion, wherein the horizontal angle is a one-letter shape, a b-letter shape, a horseshoe shape or a plus letter shape and has a plurality of through holes through which the body portion can be fitted, And the body part is fitted and inserted into the through hole.

The vertical angle may be a U-shape, a through-hole through which the body can be fitted is formed on one flange, a hook is formed on the other flange, And the body part is fitted and inserted into the through hole.

The control body may include a control wedge portion formed at the center of the injection path into which the repair fluid is injected, the control wedge portion having a screw on the outer surface sequentially from the front to the back, A control wedge groove is formed at the rear of the control tube to screw the wedge of the body and the check valve is provided in front of the injection path of the control body, , The anchor is coupled to the control wedge portion, and the sealing ring is provided between the anchor and the adjustable tubular portion.

In addition, the check valve may include a ball provided in the injection path, a spring for supporting the ball from the front, and a support ring for preventing the spring from being separated from the injection path.

The check valve may include a hollow cylinder tightly inserted into the injection path, a lid sealing the front of the cylinder, a rim provided outside the cylinder to prevent the cylinder from being inserted into the injection path, And a cutout groove formed on a front surface or a rear surface of the cover to be opened when the repair liquid is injected and closed when the injection is stopped.

According to an embodiment of the present invention, there is provided a method of repairing cracks using an anchor and a packer assembly, the method comprising: a step of arranging a base of a concrete structure or a rock having cracks; A hole forming step of forming a plurality of holes in the grounded concrete structure or the rock; Inserting the anchor and the packer assemblies into the holes; A repair liquid injecting step of injecting the repair liquid through the anchor and the packer assemblies; A step of installing a stiffener to the concrete structure or the rock; Anchor fixing step of fixing the horizontal angle and / or the vertical angle to the plurality of anchor and the packer assemblies; And a mortar spraying step of spraying the mortar to the concrete structure or the rock, wherein the anchor and the packer assembly includes an injecting path through which the remedying liquid is injected, the injecting path being formed in the center, A body portion having a tubular portion having a larger diameter than the wedge portion, a cutting portion, and a nipple; A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow; An anchor coupled to a front wedge portion of the body portion; And a sealing ring provided between the anchor and the tubular portion, wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge portion, As the nut is screwed into the anchor, an incised portion of the anchor is expanded and fixed to the hole, and the sealing ring expands in diameter to seal the hole.

Further, it is preferable that the sealing ring is disposed on the rear side of the body portion, further comprising an adjusting pipe provided between the sealing ring and the anchor.

Further, it may further comprise a washer provided at the rear of the sealing ring.

In addition, the washer may have a circumferential protrusion formed on the rear surface thereof, so that the washer slips well with the tubular portion.

The apparatus may further include a threaded portion provided between the tubular portion and the cutting portion.

Further, it may further comprise a coupling part provided between the cutting part and the nipple.

In addition, the horizontal angle may be a one-letter shape, a b-letter shape, a four-letter shape or a plus letter shape, a plurality of through-holes through which the body part can be fitted, the body part being installed and coupled to the through- Wherein the vertical angle is a U-shaped shape, and a through hole through which the body part can be fitted is formed in one flange, and a hook is formed in the other flange, and the body is fitted and inserted into the through hole. have.

In addition, the check valve may include a ball provided in the injection path, a spring for supporting the ball from the front, and a support ring for preventing the spring from being separated from the injection path.

The check valve may include a hollow cylinder tightly inserted into the injection path, a lid sealing the front of the cylinder, a rim provided outside the cylinder to prevent the cylinder from being inserted into the injection path, And a cutout groove formed on a front surface or a rear surface of the cover to be opened when the repair liquid is injected and closed when the injection is stopped.

In addition, a fixed anchor is inserted into a portion of the plurality of holes in place of the anchor-cum-packer assembly, and the fixed anchor includes a second wedge portion having a screw formed on its outer surface sequentially from the front to the back, A second body portion having a second tubular portion having a larger diameter, a second thread portion, a second cutting portion, and a second fastening portion; And a second anchor coupled to a second wedge portion in front of the second body portion, wherein the second anchor is formed with a plurality of second cut portions in the longitudinal direction in front of the second anchor, And the second wedge portion is screwed to the second anchor, so that the cut portion of the second anchor is extended and fixed to the hole.

According to the present invention, since the injection path is provided at the center and includes the body portion formed with the wedge portion, the tubular portion, the cutting portion, and the nipple, the check valve, the anchor, and the sealing ring, As the wedge part is screwed to the anchor, the anchor is expanded and fixed firmly to the hole, and the diameter of the sealing ring is expanded to seal the hole to prevent the maintenance fluid supplied from the injector from leaking. It is possible to provide a simple, efficient and economical way to repair the cracks in the concrete structure.

In addition, by providing the threaded portion between the tubular portion and the cutting portion, it is possible to provide a reinforcing member, an angle, and the like to the concrete structure without any additional process.

Further, by providing the fastening portion between the cutting portion and the nipple, it is possible to provide the effect that the body portion can be easily and easily rotated and the packer assembly can be fixed to the hole.

Further, the provision of the adjusting pipe between the sealing ring and the anchor allows the sealing ring to be located on the rear side of the body portion, allowing the maintenance fluid to flow to the rear of the body portion, .

Further, by providing the washer at the back of the sealing ring, the tubular portion and the sealing ring can be spaced apart from each other, and the body portion can rotate well.

In addition, by forming the circumferential projection on the rear surface of the washer, the surface in which the washer and the tubular portion are in contact with each other becomes small, so that the tubular portion can be slipped and rotated when the body rotates.

Further, by joining the horizontal angle to the rear of the body portion, the reinforcing member coupled to the body portion can be more firmly fixed, and the effect of reinforcing the crack of the concrete can be provided.

Further, by joining the vertical angle to the rear of the body portion, it is possible to provide an effect that the wire mesh or the like can be fastly, conveniently, and firmly fixed to the rear of the body portion.

Also, by inserting and fixing the anchoring anchor in place of the anchor-cum-packer assembly in a part of the plurality of holes formed in the concrete structure, it is possible to provide a quicker, simpler, shorter construction period and cost reduction effect have.

1 is a cross-sectional view showing a state in which an anchor and a packer assembly according to an example of the present invention is inserted into a hole formed in a concrete structure in which cracking has occurred.
2 is a perspective view and an exploded perspective view showing an anchor and a packer assembly according to an example of the present invention.
Fig. 3 is a sectional view showing the anchor and the packer assembly of Fig. 2; Fig.
4 is a cross-sectional view showing another embodiment of a check valve provided in an anchor and a packer assembly according to an example of the present invention.
5 (A) and 5 (B) are cross-sectional views respectively showing a state in which a control tube is provided in an anchor and a packer assembly according to an embodiment of the present invention, and a state in which an adjustment body is provided.
6 is a cross-sectional view showing a fixed anchor according to an example of the present invention.
FIG. 7 is a perspective view showing a state in which a grid-like stiffener is attached to an anchor and a packer assembly according to an example of the present invention.
8 is a cross-sectional view illustrating embodiments of a horizontal angle and a vertical angle coupled to an anchor and a packer assembly according to an example of the present invention.
9A to 9F are flowcharts showing a crack repairing method using an anchor and a packer assembly according to an example of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

Hereinafter, the configuration of the anchor and the packer assembly 20 according to an example of the present invention will be described in detail with reference to the drawings.

1 to 3, an anchor and a packer assembly 20 according to an exemplary embodiment of the present invention includes a body portion 21, a check valve 30, an anchor 40, and a sealing ring 50 A repair fluid supplied from an injector inserted into the hole 14 formed in the concrete structure 10 in which the crack 12 is generated and engaged with the rear is injected into the hole 14, So that the cracks of the concrete structure can be repaired and the concrete structure can be structurally reinforced. The anchor and packer assembly 20 of the present embodiment may be applied to a case where a crack occurs in a place other than a concrete structure such as a rock, but for the sake of convenience, a concrete structure will be described below as an example. The repair fluid in this embodiment may be epoxy or the like.

2 and 3, the body portion 21 is formed at the center of the injection path 22 into which the repair fluid is injected, and includes a wedge portion 23 having threads formed on its outer surface sequentially from front to back, The tubular portion 24, the cutting portion 25, and the nipple 26 having a larger diameter than the wedge portion 23 can be formed.

The wedge portion 23 may be formed with a screw on the entire outer surface or a front portion thereof. Which is coupled to an anchor 40 to be described below so that the anchor 40 is extended to be securely fixed to the hole 14 and at the same time the body 21 is securely fixed to the anchor 40. Accordingly, the anchor and packer assembly 20 of the present embodiment is firmly fixed to the hole 14 formed in the concrete to inject the maintenance liquid, and also serves as an anchor to be firmly fixed to the hole 14. [ Therefore, compared to the prior art in which the repair fluid is merely injected into the anchor, the anchor and the packer assembly 20 of the present embodiment simultaneously perform the injection of the maintenance liquid and the anchor, thereby significantly reducing the construction cost, the construction time, can do.

The tubular portion 24 is a portion having a larger diameter than the wedge portion 23.

The cutting portion 25 is a portion formed in the circumferential direction on the back of the tubular portion 24. Which is formed to remove its rear portion after the operation of the anchor-cum-packer assembly 20 is completed.

The nipple 26 is a portion to which the injector is connected, and its shape can be variously formed. In this embodiment, the neck is formed to be concave so that the hose of the injector can be easily combined.

And a threaded portion 80 may be further provided between the tubular portion 24 and the cutting portion 25. This is because the anchor and packer assembly 20 of the present embodiment plays a role both as a packer and as an anchor. That is, the horizontal angle 110 can be firmly fixed to the anchor and the packer assembly 20 by providing a horizontal angle 110 or the like to be described later and engaging the nut with the threaded portion 80, It is possible to prevent or suppress the disengagement of the installed stiffener 120 or the expansion of cracks occurring in the concrete. It is also possible to fix the vertical angle 112 to be described later. That is, the vertical angle 112 is fixed to the anchor-cum-packer assembly 20 by inserting the through-hole of the vertical angle 112 into the anchor-cum-packer assembly 20 and then tightening the nut, A reinforcing bar, a wire mesh, or the like may be installed on the engaging portion, and then reinforced by injecting mortar (see FIG. 8).

And a coupling part 90 may be further provided between the cutting part 25 and the nipple 26. The fastening portion 90 is configured to rotate the body portion 21. [ The wedge portion 23 is screwed to the anchor 40 and the front portion of the anchor 40 is expanded and fixed to the hole 14 formed in the concrete as the body portion 21 is rotated. The fastening portion 90 of the present embodiment is formed in a regular hexagon, but may be rectangular. Further, a hole may be formed in the periphery, and the body portion 21 may be rotated using this hole. In other words, the fastening portion 90 can be anything that can rotate the body portion 21.

The check valve (30) is provided in front of the injection path (22) to inject the maintenance liquid and to prevent backflow. The check valve 30 includes a hollow cylinder 36 closely inserted into the injection path 22, a lid 37 for sealing the front of the cylinder 36, A rim 38 for preventing the cylinder 36 from being inserted into the injection path 22 and a rim 38 formed on the front or rear surface of the lid 37 to be opened when the remedial liquid is injected, And may include a groove 39. The check valve 30 is adhered to the front of the injection path 22 with an adhesive or the like so as to form a groove in the injection path 22. The check valve 30 is connected to the cylinder 36 of the check valve 30 So that they can be coupled to each other. In addition, the cutout groove 39 is a groove cut into a V-shape, and may be completely cut, or may be made to be cut when the repair fluid is formed after being partially cut, when the pressurized fluid is injected under pressure. Therefore, the cutout groove 39 is opened when the repair liquid is injected, and when the injection is completed, the repair liquid is prevented from flowing backward.

The check valve 30 includes a ball 32 provided in the injection path 22, a spring 34 for supporting the ball 32 in front and a spring 34 for releasing the spring 34 from the injection path 22 (Refer to FIG. 4).

The anchor 40 is coupled to the wedge portion 23 at the front of the body portion 21. The anchor 40 is provided with a plurality of cutouts 42 in the longitudinal direction at the front and a wedge portion 23 A screw is formed. The outer surface of the anchor 40 is formed with a protruding portion or a protruding portion or a rough surface and the protruding portion, protruding portion or rough surface is formed to be equal to or slightly larger than the diameter of the hole 14 formed in the concrete, The wedge portion 23 is inserted into the anchor 40 so that the cut portion 42 of the anchor 40 is inserted into the anchor 40. Thus, when the body portion 21 is rotated, So that the front portion is formed to be firmly fixed to the hole 14.

The sealing ring 50 is provided as a hollow cylindrical shape between the anchor 40 and the tubular portion 24. Accordingly, as the wedge portion 23 is threadedly engaged with the anchor 40, the anchor 40 gradually approaches the tubular portion 24 so that the sealing ring 50 is compressed and expanded in diameter, Lt; / RTI > The sealing ring 50 is expanded to prevent the maintenance liquid injected into the injection path 22 from leaking to the rear of the hole 14 as the hole 14 of the concrete is sealed.

A washer (70) may be provided at the rear of the sealing ring (50). The washer 70 may have a circumferential protrusion formed on the rear surface thereof to allow the tubular portion 24 to slide smoothly. The sealing ring 50 uses a flexible and resilient material such as rubber. This is to seal the hole 14 well but there is a problem that the tubular portion 24 is not rotated well or the sealing ring 50 is twisted due to frictional force with the tubular portion 24 on the rear side have. In order to prevent this, it is preferable that the washer 70 is rotated together with the sealing ring 50 so that the washer slides smoothly with the tubular portion 24. In order to facilitate the slippage, the washer 70 may form a circular projection on the rear surface, that is, a circular shape.

5, an adjusting pipe 60 may further be provided between the sealing ring 50 and the anchor 40. The sealing ring (50) can be located on the rear side of the body portion (21) by providing the control tube (60). This allows the maintenance liquid to flow only up to the front portion of the sealing ring 50, and the rear portion thereof is blocked from flowing. In the absence of the control tube 60, most of the body 21 is separated from the maintenance liquid. This is disadvantageous in that the body portion 21 is well engaged with the concrete hole 14. To prevent this, an adjusting tube 60 is provided, and a sealing ring 50 can be disposed behind the adjusting tube 60. The maintenance liquid is introduced into the front portion of the sealing ring 50 to the control pipe 60 so that the majority of the periphery of the body portion 21 is surrounded by the repair fluid and is coupled with the hole 14, (20) can be firmly fixed to the hole (14). In other words, by providing the adjusting tube 60, the sealing ring 50 can be selectively placed in front of or behind the adjusting tube 60, The position of the ring 50 can be easily selected. Therefore, although the control tube 60 is shown as one, a plurality of control tubes 60 may be provided, and a sealing ring 50 may be provided between the plurality of tubes.

Further, an adjusting body portion 27 may be additionally provided between the body portion 21 and the anchor 40. The adjusting body portion 27 is formed at the center of the injection path into which the repair fluid is injected. The adjusting body portion 27 includes an adjusting wedge portion 28 having a screw on the outer side in order from front to back, And an adjustable wedge recessed groove portion (not shown) is formed at the rear of the adjustable tubular portion 29 so that the wedge portion 23 of the body portion 21 is screwed. In this case the check valve 30 is moved forward of the injection path of the regulating body 27 and the anchor 40 is coupled to the control wedge 28 and the sealing ring 50 is connected to the anchor 40, (40) and the adjustable tubular portion (29). The adjustment body portion 27 is intended to be applied to a case where the crack depth of the concrete structure 10 is deep and it is necessary to inject or reinforce the repair fluid to a deep place.

Meanwhile, a part of the plurality of holes 14 of the concrete structure 10 may be provided with a fixed anchor 130 instead of the anchor and the packer assembly 20 having the above-described configurations. Referring to FIG. 6, the fixed anchor 130 may include a second body portion 131 and a second anchor 140. The second body portion 131 includes a second wedge portion 132 having a screw on the outer surface sequentially from the front to the rear, a second tubular portion 134 having a larger diameter than the second wedge portion 132, A second screw portion 136, a second cutting portion 138, and a second fastening portion 139. [ The second anchor 140 is coupled to the second wedge portion 132 at the front of the second body portion 131. The second anchor 140 has a plurality of second cutouts (not shown) And a screw is formed on the side surface so as to be engaged with the second wedge portion 132. The second wedge portion 132 is screwed into the second anchor 140 so that the cut portion of the second anchor 140 is expanded and fixed to the hole 14. [

The second body portion 131, the second wedge portion 132, the second tubular portion 134, the second screw portion 136, the second cutting portion 138, Is substantially the same as the body portion 21, the wedge portion 23, the tubular portion 24, the screw portion 80, the cutting portion 25, and the fastening portion 90 of the anchor and the packer assembly 20. Also, the second anchor 140 is substantially the same as the anchor 40.

Hereinafter, a crack repairing method using an anchor and a packer assembly 20 according to an example of the present invention will be described in detail with reference to the drawings.

9A to 9F, a crack repairing method using an anchor and a packer assembly 20 according to an example of the present invention includes a step of arranging a base, a hole forming step, a step of inserting an anchor and a packer assembly 20, A repair fluid injection step, a stiffener 120 installation step, a horizontal angle fixing step 110, and a mortar injection step. On the other hand, the construction of the anchor-cum-packer assembly 20 is described with reference to the above description.

Referring to FIG. 9A, the basing step is a step of arranging the basis of the concrete structure 10 in which the crack 12 is generated. This step is to remove the corrosion of the concrete by cutting, cleaning, etc. the surface of the concrete structure 10 where the crack 12 to be repaired is generated. By doing so, the reinforcing member 120, the horizontal angle 110, the injection mortar, and the like to be installed in the later-described step are well coupled.

Referring to FIG. 9B, the hole forming step is a step of forming a plurality of holes 14 in the grounded concrete structure 10. These holes 14 are for inserting the anchor-packer assembly 20 and the fixed anchor 130. Therefore, it is not necessary to inject a repair liquid or inject a maintenance liquid. However, the reinforcement 120 installed in a step to be described later, the place where the fixing anchor 130 is installed for installing the horizontal angle 110, .

Referring to FIG. 9C, the step of inserting the anchor and the packer assembly 20 is a step of inserting the anchor and the packer assemblies 20 into the holes 14. At this stage, cracks 12 are generated and the anchor and packer assembly 20 is inserted into the hole 14 where the maintenance liquid is to be injected. It is not necessary to inject the maintenance liquid but the reinforcement member 120 and the horizontal angle 110 are fixed The fixed anchor 130 is inserted and installed in a place where it is necessary to do so.

Referring to FIG. 9C, the maintenance liquid injection step is a step (not shown) of injecting the maintenance liquid through the anchor and the packer assemblies 20. The coupling part 90 of the body part 21 is rotated to securely fix the anchor and the packer assembly 20 to the hole 14 of the concrete while the sealing ring 50 is expanded and the hole 14).

Referring to FIG. 9D, the step of installing the stiffener 120 is to install the grid-like stiffener 120 on the concrete structure 10. This reinforcing material 120 prevents the concrete structure 10 from falling off and peeling off, and ensures that the injected mortar described later is firmly fixed. The reinforcing member 120 may be a straight shape, a lattice shape (see FIG. 7), or the like.

9A and 9F, the fixing of the horizontal angle 110 may be performed between the anchor and the packer assemblies 20 or between the anchor packer assembly 20 and the anchor 130 using the horizontal angle 110 . The horizontal angle 110 prevents the detachment of the reinforcing member 120 and prevents the detachment of the reinforcing member 120 and the deterioration of the concrete structure 10 ) Is increased.

The horizontal angle 110 is formed in a shape of a letter 1, a letter, a figure, a figure, or a letter, and a plurality of through-holes through which the body 21 or the second body 131 can be fitted are formed, The body portion 21 and the second body portion 131 are fitted and engaged (refer to FIG. 8).

Alternatively, the vertical angle 112 may be fixed in place of or in combination with the horizontal angle 110. The vertical angle 112 can be easily reduced when reinforcing steel wire mesh is installed at a position spaced apart from the surface of the concrete structure 10 to reinforce it.

The vertical angle 112 has a U-shaped cross-section, and a through hole through which the body 21 is inserted is formed at one flange. A ring, a hole for insertion, (See Figure 8).

The mortar injection step is a step of injecting the mortar into the concrete structure (10). It is preferable to cut and remove the rear portion thereof by using the cutting portion 25 before the mortar injection step.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Concrete structure
12: Crack
14: hole
20: Anchor combination packer assembly
21:
22: injection path
23: Wedge portion
24:
25:
26: Nipple
27: Adjustable body part
28: Adjustable wedge portion
29:
30: Check valve
32: Ball
34: spring
35: Support ring
36: cylinder
37: Cover
38: Border
39: Cutting home
40: Anchor
42: incision
50: sealing ring
60: Regulating tube
70: Washer
80: thread
90:
110: Horizontal angle
112: vertical angle
120: Stiffener
130: Fixed anchor
131: second body part
132: second wedge portion
134: second tubular portion
136: second threaded portion
138: second cutting portion
139: second fastening portion
140: Second anchor

Claims (19)

An anchor and a packer assembly for repairing cracks by injecting a repair liquid, which is inserted into a hole formed in a concrete structure or rock formed by cracking and supplied from an injector connected to the rear, into the hole,
A body portion formed with a wedge portion having a screw on an outer side in order from front to back, a tubular portion having a larger diameter than the wedge portion, a cutting portion, and a nipple;
A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow;
An anchor coupled to a front wedge portion of the body portion; And
And a sealing ring provided between the anchor and the tubular portion,
Wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge,
As the wedge portion is threadedly engaged with the anchor, an incised portion of the anchor is expanded and fixed to the hole, the sealing ring is expanded in diameter to seal the hole,
The check valve includes a hollow cylinder tightly inserted into the injection path, a lid sealing the front of the cylinder, a rim provided outside the cylinder in front of the cylinder to prevent the cylinder from being inserted into the injection path, And a cutout groove formed in a front surface or a rear surface of the anchor and the rear surface, the cutout groove being opened when the remedial liquid is injected and closed when the injection is stopped.
The method according to claim 1,
Further comprising an adjusting pipe provided between the sealing ring and the anchor so that the sealing ring is located on a rear side of the body portion.
The method according to claim 1 or 2,
Further comprising a washer provided behind the sealing ring. ≪ RTI ID = 0.0 > 11. < / RTI >
The method of claim 3,
Wherein the washer is formed with a circumferential projection on the rear surface, and slides smoothly with the tubular portion.
The method according to claim 1 or 2,
Further comprising a threaded portion provided between the tubular portion and the cutting portion. ≪ RTI ID = 0.0 > 11. < / RTI >
The method according to claim 1 or 2,
Further comprising a fastening portion provided between the cutting portion and the nipple.
delete delete The method according to claim 1 or 2,
Further comprising a horizontal angle coupled to the rear of the body portion,
The horizontal angle may be a one-letter shape, a b-letter shape, a four-letter shape or a plus letter shape, and a plurality of through-holes through which the body part can be fitted,
And the body part is fitted and inserted into the through hole.
The method according to claim 1 or 2,
And a vertical angle coupled to the rear of the body portion,
The vertical angle is a U-shaped shape, and one side flange is provided with a through hole through which the body part can be fitted, and the other side flange is formed with a hook
And the body part is fitted and inserted into the through hole.
An anchor and a packer assembly for repairing cracks by injecting a repair liquid, which is inserted into a hole formed in a concrete structure or rock formed by cracking and supplied from an injector connected to the rear, into the hole,
A body portion formed with a wedge portion having a screw on an outer side in order from front to back, a tubular portion having a larger diameter than the wedge portion, a cutting portion, and a nipple;
A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow;
An anchor coupled to a front wedge portion of the body portion; And
And a sealing ring provided between the anchor and the tubular portion,
Wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge,
As the wedge portion is threadedly engaged with the anchor, an incised portion of the anchor is expanded and fixed to the hole, the sealing ring is expanded in diameter to seal the hole,
An adjusting body portion is coupled between the body portion and the anchor,
Wherein the adjusting body portion is formed at the center of the injection path into which the remedying liquid is injected, the adjusting body portion having a control wedge portion having a screw on the outer side in order from front to back, and a control tube portion having a larger diameter than the control wedge portion,
A control wedge groove is formed at a rear portion of the adjustable tubular portion and the wedge portion of the body portion is screwed into the adjustment wedge groove,
The check valve is provided in front of the injection path of the regulating body,
Wherein the anchor is coupled to the adjustment wedge portion,
Wherein the sealing ring is provided between the anchor and the adjustable tubular portion.
A step of laying out the basis of the cracked concrete structure or rock;
A hole forming step of forming a plurality of holes in the grounded concrete structure or the rock;
Inserting the anchor and the packer assemblies into the holes;
A repair liquid injecting step of injecting the repair liquid through the anchor and the packer assemblies;
A step of installing a stiffener to the concrete structure or the rock;
Anchor fixing step of fixing the horizontal angle and / or the vertical angle to the plurality of anchor and the packer assemblies; And
And a mortar spraying step of spraying mortar onto the concrete structure or the rock,
Wherein the anchor and the packer assembly includes:
A body portion formed with a wedge portion having a screw on an outer side in order from front to back, a tubular portion having a larger diameter than the wedge portion, a cutting portion, and a nipple;
A check valve provided at the front of the injection path to inject the remedial liquid and prevent back flow;
An anchor coupled to a front wedge portion of the body portion; And
And a sealing ring provided between the anchor and the tubular portion,
Wherein the anchor is formed with a plurality of incisions in the longitudinal direction in front of the anchor, a screw is formed on the inner side of the anchor to engage with the wedge,
As the wedge portion is threadedly engaged with the anchor, an incised portion of the anchor is expanded and fixed to the hole, the sealing ring is expanded in diameter to seal the hole,
The check valve includes a hollow cylinder tightly inserted into the injection path, a lid sealing the front of the cylinder, a rim provided outside the cylinder in front of the cylinder to prevent the cylinder from being inserted into the injection path, And a cutout groove formed on a front surface or a rear surface of the anchor and the rear surface, the cutout groove being opened when the repair liquid is injected and closed when the injection is stopped.
The method of claim 12,
Wherein the seal ring is disposed at a rear side of the body portion, wherein the seal ring is disposed between the seal ring and the anchor.
14. The method according to claim 12 or 13,
And a washer provided at the rear of the sealing ring. The crack repairing method using the anchor and the packer assembly.
14. The method according to claim 12 or 13,
Further comprising a threaded portion provided between the tubular portion and the cutting portion. The crack repairing method using the anchor and the packer assembly according to claim 1,
14. The method according to claim 12 or 13,
Further comprising a coupling part provided between the cutting part and the nipple. The crack repairing method using the anchor and the packer assembly.
14. The method according to claim 12 or 13,
The horizontal angle may be a one-letter shape, a b-letter shape, a four-letter shape or a plus letter shape, and a plurality of through-holes through which the body part can be fitted,
The body portion is fitted and coupled to the through hole,
Wherein the vertical angle is a U-shaped shape, a through-hole through which the body part can be fitted is formed at one flange, a hook is formed at the other flange,
And the body part is fitted to the through hole so that the body part is engaged with the through hole. The crack repairing method using the anchor and the packer assembly.
delete 14. The method according to claim 12 or 13,
A fixed anchor is inserted into a part of the plurality of holes in place of the anchor and the packer assembly,
The fixed anchor
A second tubular portion having a larger diameter than the second wedge portion, a second threaded portion, a second cutting portion, and a second body portion having a second fastening portion; ; And
And a second anchor coupled to a second wedge portion in front of the second body portion,
Wherein the second anchor is formed with a plurality of second incisions in the longitudinal direction in front and a screw is formed on the inner side to engage with the second wedge,
And the cut portion of the second anchor is expanded and fixed to the hole as the second wedge portion is screwed to the second anchor.

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