KR102098938B1 - A pressure distributing device of a grating block for slope reinforcement, an anchoring structure for slope reinforcement including the same, and an anchor type slope reinforcement method - Google Patents

Abstract

Disclosed is a pressure distribution device for a slope reinforcement block, an anchoring structure for reinforcement including a slope, and an anchor type slope reinforcement method using the same. Pressure distribution device for a slope reinforcement block according to an aspect of the present invention, elastic pockets (Elastic pocket) produced by sealing or bonding the periphery of the edges and the center in the state of two sheets of flexible, flat and flexible sheets against each other portion) and a filler injection portion having an injection pipe coupled to the elastic pocket portion through an opened portion of one side of the elastic pocket portion such that a portion is located inside the elastic pocket portion and the other portion is located outside the elastic pocket portion. ), The elastic pocket portion is inflated by the fluid filling material supplied at a predetermined pressure from the outside of the elastic pocket portion to the inside of the elastic pocket portion through a hose connected to the filling material injection portion, and the surface in contact with the slope corresponds to the bending of the slope. It is intended to be configured to be deformed and cured in a deformed state.

Description

A pressure distributing device of a grating block for slope reinforcement, an anchoring structure for slope reinforcement including the same, and an anchor type slope reinforcement method}

The present invention relates to a pressure distribution device for a slope reinforcement block installed to prevent ground reinforcement and slope collapse of a cut or embankment site, and an anchoring structure for slope reinforcement including the same, and an anchor type slope reinforcement method.

In general, in the construction of roads and houses and various civil works including this, the topography that faces the mountain rather than flat land causes many cuts or fills, such as slopes or slopes, due to the topographical characteristics. As such, if the cut or embankment surface generated during civil engineering works is left undisturbed, it is highly likely to collapse due to internal or external factors such as groundwater or rainwater.

Accordingly, reinforcing work is performed to secure permanent stability of the cut or embankment surface that occurs during civil engineering work. An anchoring method is one of the widely used methods for reinforcing cut or fill surfaces. The anchor method is a kind of improvement and treatment method of the foundation rock, and is a method of stabilizing by pressing a slope that may cause collapse.

Specifically, the anchor construction method is to stabilize both the ground and the slope from stress, deformation, displacement, etc. generated from the ground by fixing both sides of a high-strength tensile material such as a PC steel wire in a weight structure (concrete block) on the slope and applying a preceding load. , This is a technology that anchors the anchor (tensile material) deeper than the expected activity surface of the slope and suppresses the activity of the ground by applying tension.

An anchor construction method will be described in more detail with reference to FIG. 1.

As shown in FIG. 1, first, a place where a slope collapse or movement is expected, that is, a base plate of an inclined land requiring slope reinforcement is drilled (refer to 1 in FIG. 1). Then, after inserting a reinforcing material such as a PC steel wire that functions as an anchor in the perforated hole (see 2 in FIG. 1), grouting is performed so that a part of the reinforcing material is stably fixed and fixed to the perforated hole (FIG. 1, 3). ) Reference).

Next, after the concrete block and the pressing plate are sequentially installed on the slope around the entrance of the perforation hole (see 4 in FIG. 1), in a state where the reinforcement material is strongly pulled and pulled out of the ground using a dedicated tensioning device such as a tension cylinder. After fixing to the fixing head using a wedge or nut on the pressure plate outside the perforated hole (see 5 in FIG. 1), finish with a protective cap (see 6 in FIG. 1)).

The pressure plate used in the anchoring method is a plate-like structure installed around the entrance outside the perforation hole to support the fixing head, and transmits the compressive force transmitted through the fixing head to the block by the force that the tensioned stiffener returns to its original state. The block acts to suppress the collapse or movement of the slope by pressing the slope with its own load and the force transmitted through the pressure plate.

On the other hand, the state of the surface of the slope in contact with the block has a great effect on the slope collapse or the motion suppression effect. If the state of the contact surface of the block is uneven, the force of the block is not evenly distributed on the slope and the suppression effect is not sufficiently exhibited. In some cases, the force of pressing the slope is biased to either side, causing the block to crack or severely This is because blocks can be damaged.

In the case of the land, the slope of the slope is relatively good because of the fact that the soil is piled up to build up the slope. However, in the case of the cut, the surface is uneven compared to the slope of the land because the structure is made by cutting soil on the ground or the surface. Accordingly, when the slope is reinforced by the anchor method, there is a high probability that the above-described problem occurs, and improvement is urgently needed.

Korea Patent Publication No. 2014-0094178 (Publication date 2014. 07. 30)

The problem to be solved by the present invention is that the pressing force of the block is evenly distributed on the slope, so that the effect of suppressing the slope collapse or movement by the block is sufficiently exhibited, and it is possible to improve the problem that the block cracks or severely breaks the block. It is intended to provide a pressure distribution device for a slope reinforcement block, an anchoring structure for reinforcement including a slope, and an anchor type slope reinforcement method.

According to an aspect of the present invention as a means for solving the problem,

It is installed between the slopes of the back surface of the block to maintain a uniform contact surface pressure of the blocks against the slopes when reinforcing the slopes for cut or land,

An elastic pocket portion produced by sealing or joining the periphery of the edge and the center in a state where two sheets of elastic flat flexible sheets are placed against each other;

Filler injection portion having an injection tube coupled to the elastic pocket portion through the opened portion of one side of the elastic pocket portion, so that some are located inside the elastic pocket portion and the other portion is located outside the elastic pocket portion. ); And

It includes; an air vent portion (Air vent portion) having an air vent valve installed over the inner and outer portions of the elastic pocket portion so that the air inside the elastic pocket portion is discharged out when the fluid filling material is injected;

A surface in contact with the slope is deformed in response to the curvature of the slope while the elastic pocket is swollen by the fluid filling material supplied at a predetermined pressure from the outside of the elastic pocket to the inside of the elastic pocket through a hose connected to the filler injection part. It provides a pressure distribution device for a slope reinforcement block, characterized in that.

Here, the elastic pocket portion may be produced by sealing two elastic flexible fabric sheets (Woven fabrics seat) against each other and stitching the periphery of the center and through the center.

Alternatively, the elastic pocket portion may be produced by sealing two elastic sheets of flexible rubber or silicone sheets against each other and sealing the edges of the center and the perforations around the center through heat bonding.

Preferably, the elastic pocket portion may be formed in a shape and size corresponding to the shape and size of the block.

As another embodiment according to an aspect of the present invention, when reinforcing a slope on a cut or filled land, it is installed to be in contact with a slope on the back surface of the block to maintain a uniform contact surface pressure of the block against the slope.

An elastic pad portion installed along the periphery of the back edge and the center of the block so as to partition a predetermined filling space in which the filling material can be filled between the block and the slope;

A filler injection portion including an injection tube coupled to one side of the elastic pad portion such that a portion is located in a filling space inside the elastic pad portion and another portion is located outside the elastic pad portion; And

Including the air vent portion (Air vent portion) having an air vent valve installed over the inside and outside of the elastic pad portion so that the air filled in the filling space is discharged out when injecting the filling material,

For reinforcing slopes, characterized in that the fluid filling material is supplied at a predetermined pressure from the outside of the filling space to the inside of the filling space through a hose connected to the filling material injection part and solidified in a uniformly dispersed state in the filling space according to the curvature of the slope. Provided is a pressure distribution device for blocks.

Here, the elastic pad portion may be made of soft rubber or silicone material.

In addition, the flowable filler may be a grout material of any one of a cement, mortar, and chemical liquid.

As another embodiment according to an aspect of the present invention, it is installed between the slope of the back surface of the block to maintain a uniform contact surface pressure of the block against the slope when reinforcing a slope for a cut or filled land,

It is composed of a flexible sheet-shaped flexible sheet with a through hole formed in the center, and an elastic sheet which is formed by sealing the edges and the periphery of the through hole to the back of the block to form a predetermined filling space that can be filled with a filling material between the blocks. Elastic seat portion;

A filler injection portion having an injection tube coupled to one side of the elastic sheet portion so that a part is located inside the filling space and a part is located outside the filling space; And

It is installed on one side of the elastic seat portion and includes an air vent portion (Air vent portion) having an air vent valve;

A slope characterized in that the elastic sheet portion is inflated and deformed according to a curved state of a slope by a fluid filling material supplied at a predetermined pressure from the outside of the elastic sheet portion to the inside of the elastic sheet portion through a hose connected to the filler injection portion Provided is a pressure distribution device for a reinforcing block.

According to another aspect of the present invention as a means for solving the problem,

A tensile reinforcing material that is fixedly fixed by grouting to a perforated hole of a cut or reclaimed land and is installed such that a part extends out of the perforated hole;

A block installed on a slope around the entrance of the perforation hole to suppress collapse of the slope of the cut or land;

A pressure plate installed at a center of the front surface of the block so that a part of the block comes into contact with the block;

A tension head installed to maintain a tension state of the tensile reinforcement based on the support plate at the exposed end of the tensile reinforcement extending forward of the pressure plate; And

Provided is an anchoring structure for reinforcing a slope, including; a pressure distribution device according to one aspect described above, which is installed between the slopes on the back surface of the block in order to make the contact surface pressure of the block with respect to the slope uniform.

According to another aspect of the present invention as a means for solving the problem,

Perforating the ground to a predetermined depth from the slope of the cut or embankment using the drilling equipment;

Inserting a tensile reinforcing material into the perforated hole formed in the perforation step and grouting to fix the tensile reinforcing material in the perforated hole;

Installing a block so that the tensile reinforcement penetrates on the slope around the entrance of the perforation hole, and installing the block so that the pressure distribution device according to one aspect described above is located between the block and the slope;

Forming a pressure dispersion for even distribution of pressure between the slopes supporting the load of the block by injecting a flowable filler into the pressure dispersing device at a predetermined pressure; And

It provides an anchor-type slope reinforcement method comprising; imparting a tension to the tension reinforcing material and fixing it with a tension head using a tensioning device immediately after completion of the injection of the flowable filler or before curing after completion of the injection.

Here, the flowable filler may be a grout material of any one of cement, mortar, and chemical.

According to an embodiment of the present invention, by applying a pressure dispersing device, the self-load of the block and the pressing force (force pressing the slope) due to the tension of the tensile reinforcement may be evenly distributed over the entire surface of the slope in contact with the block. Accordingly, the slope collapse or motion suppression effect through the block is sufficiently exhibited, so that a more stable cut or land can be constructed.

In addition, as the self-load of the block by the pressure dispersing device and the pressing force (force pressing the slope) by the tension of the tensile reinforcement are evenly distributed over the entire surface of the slope in contact with the block, the force pressing the slope is biased to either side. It is possible to reliably improve the problem of block breakage due to cracking of the resulting block or accumulation of fatigue.

1 is a view showing a process of reinforcing a slope through a conventional anchor method.
Figure 2 is an exploded perspective view of the anchoring structure for slope reinforcement according to an embodiment of the present invention.
Figure 3 is a perspective view of the anchoring structure shown in Figure 2;
4 is a view showing a construction cross-section after construction of the anchoring structure shown in FIG. 3;
5 is a perspective view and a front view of a pressure distribution device according to an embodiment of the present invention.
6 is a side view of a block to which the pressure distribution device of FIG. 5 is applied.
7 is a view illustrating a state of use of the pressure distribution device according to an exemplary embodiment, and is an enlarged view of part 'A' of FIG. 4.
8 is a perspective view showing a state in which a pressure dispersing device according to another preferred embodiment of the present invention is attached to a block.
9 is a view showing a state of use of the pressure distribution device according to another preferred embodiment.
10 is a perspective view showing a state in which a pressure distribution device according to another preferred embodiment of the present invention is attached to a block.
11 is a view showing a state of use of the pressure distribution device according to another preferred embodiment.
12 is a construction flow chart schematically showing a slope reinforcement process performed on an anchoring structure for slope reinforcement.

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

Terms used in the specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this specification, the terms “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, or that one or more other features or It should be understood that the existence or addition possibilities of numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

Further, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

In addition, terms such as “… unit”, “… unit”, “… module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. You can.

Hereinafter, detailed descriptions of well-known components will be omitted in describing the present invention with reference to the accompanying drawings, and detailed descriptions of components that may unnecessarily obscure the subject matter of the invention will be omitted. In addition, the same configuration will be described with reference to the same reference numerals.

With reference to the accompanying drawings, a configuration for a pressure distribution device for a slope reinforcement block according to an aspect of the present invention will be described in connection with the configuration of an anchoring structure for slope reinforcement to which the pressure dispersion device is applied.

2 is an exploded perspective view of an anchoring structure for reinforcing a slope according to an embodiment of the present invention, and FIG. 3 is a combined perspective view of the anchoring structure shown in FIG. 2. And Figure 4 is a view showing a construction cross-section after the anchoring structure shown in FIG.

2 to 4, the anchoring structure 1 for reinforcing the slope is provided on the slope 2 through at least one tensile reinforcing member 10 and a tensile reinforcing member 10 settled on a cut or filled ground. It includes a block 12 which is a weight structure to be installed. In addition, the pressure plate (13) and the tension head (14) for imparting the tension to the tension plate (10) installed to contact the front surface of the block (12), and the pressure distribution devices (16a, 16b) on the back of the block (12) Includes.

The tensile reinforcing material 10 serves to prevent deformation or displacement of the ground and to generate a restraining force necessary to stabilize the slope 2 through the block 12. In the tensile reinforcing material 10, grouting is fixed to the ground except for a part of the tip. Specifically, it is settled through grouting in the perforation hole 3 formed on the ground through the perforation equipment, and a part of the tip is installed to extend outside the perforation hole 3.

 As the tensile reinforcing material 10, a PC steel wire made by twisting several strands of steel wire is preferable, but only need to be a long bar structure made of a metal material like a steel bar. A part of the tip (exposure end) of the tensile reinforcement 10 located outside the perforation hole 3 is constrained to the tension head 14 through a wedge in a tensioned state, and accordingly, the block 12 is sloped 2 The binding force (pressing force) is generated in the direction to be adhered to.

The block 12 and the pressure plate 13 are sequentially installed on the tensile reinforcing material 10 extending outward from the perforation hole 3, and then the tensile reinforcing material 10 is externally applied to the ground using a dedicated tensile equipment such as a tensile cylinder. In the state of being strongly pulled with the tension, the tension plate 14 is fixed using a wedge or nut on the pressure plate 13 outside the perforation hole 3, and then the protective cap 15 is closed.

The main function of the block 12 is to suppress the collapse and activity of the slope 2. The block 12 is installed on the slope 2 around the entrance of the perforation hole 3 and may be precast concrete with a hole through which the tensile reinforcement 10 passes in the center. At this time, the shape of the block 12, and the size and design load may be varied depending on the level of the ground or the slope 2 of the construction target part, and thus is not particularly limited.

The pressure plate 13 is installed at the front center of the block 12. The pressure plate 13 is a medium for transmitting the tension force transmitted through the tension head 14 to the block 12, the tension head by the force to return the tension stiffener 10 from the tension state to the original state (14) serves to distribute the pressure evenly (force acting in the direction of pressing the slope 2) transmitted through the block 12 evenly.

The pressure plate 13 may be a rectangular plate-shaped plate with a hole in the center as shown in the drawing, but the shape is not specified because various modifications are possible depending on the shape or shape of the block. The shape or size, shape, and shape of the block, and the size of the tension head 14 according to the diameter of the tensile reinforcing material 10 may vary, and thus, the present invention is not limited to a specific value.

The tension head 14 is fixed with a wedge or a nut at the tip of the tension reinforcement 10 in a tensioned state, as mentioned above, and is fixed in a strong contact with the front surface of the pressure plate 13. That is, the tension head 14 serves as a fixture for maintaining the tension state of the tension reinforcement 10 based on the support plate 13 at the exposed end of the tension reinforcement 10 extending forward of the pressure plate 13. .

The tension head 14 may be a cylindrical or prismatic shape having a number of holes corresponding to the tensile reinforcement 10 on the inside, and when the slope 2 is reinforced, the tension reinforcement 10 is tensioned through the hole ( 14). At this time, a wedge sheet or a nut sheet (not shown) may be formed around the hole opposite to the pressure plate 13 to provide a seat for the wedge or nut seating.

The pressure dispersing devices 16a and 16b are for equalizing the contact surface pressure of the block 12 with respect to the slope 2, and are installed between the slope 2 on the back surface of the block 12, thereby causing the block ( The block 12 can be evenly distributed over the entire surface of the slope 2 where the block 12 comes into contact with the self-load of 12 and the pressing force (force pressing the slope 2) due to the tension of the tensile reinforcement 10. Through the slope (2) collapse or activity suppression effect can be increased.

A preferred embodiment of the pressure distribution device according to the embodiment of the present invention will be described for each embodiment with reference to the drawings.

5 is a perspective view and a front view of a pressure distribution device according to an exemplary embodiment of the present invention, and FIG. 6 is a side view of a block to which the pressure distribution device of FIG. 5 is applied. And Figure 7 is a view showing a state of use of the pressure distribution device according to an embodiment of the enlarged view of the 'A' portion of FIG.

5 and 7, the pressure dispersing device 16a according to an exemplary embodiment includes an elastic pocket portion 160 of an elastic material in which an enclosed receiving space is formed and stretchable and elastic. And a filler injection portion 162 including an injection pipe 163 coupled to the elastic pocket portion 160 through an opened portion on one side of the edge of the pocket portion 160.

In addition, an air vent portion 168 provided on one side of the elastic pocket portion 160 spaced apart from the injection pipe 163 is provided.

The elastic pocket portion 160 may be a pocket structure in which two edges of a flexible flexible sheet on a stretchable plane are sealed or bonded around a central through hole 161 provided to pass through the edge and the tensile reinforcement 10. The elastic pocket portion 160 may be formed in a shape and size corresponding to the shape and size of the above-described block 12, and may be provided in a form attached to the back surface of the block 12 in advance through an adhesive or the like.

The elastic pocket portion 160 is preferably made by sealing two elastic flexible fabric sheets (Woven fabrics seat) against each other and the center and the perforation 161 of the center with a lock-stitch, or is flexible elastic rubber or silicone The two sheets of the material may be manufactured by sealing the edges of each other and the periphery of the central hole 161 through thermal bonding.

The filler injection part 162 includes an injection tube 163 having a tube fitting structure. The injection tube 163 is through an open portion of one side of the edge of the elastic pocket portion 160, so that a portion is located inside the elastic pocket portion 160 and the other portion is located outside the elastic pocket portion 160. It may be coupled to the elastic pocket portion 160, the filler hose 40 is connected to one end of the injection pipe 163 located outside the elastic pocket portion (160).

The fluid filling material 17 is supplied at a predetermined pressure from the outside to the inside of the elastic pocket part 160 through the filling material hose 40. As the elastic pocket 160 is inflated by the fluid filling material 17 supplied as described above, the surface contacting the slope 2 is deformed in response to the curvature of the slope 2, and the fluid filling material 17 filled therein The elastic pocket portion 160 maintains its deformed state by solidifying after a predetermined time.

As the flowable filler 17, a material having a hardening property as time elapses in a soft paste state having fluidity, for example, a liquid grout material such as cement solution, mortar solution, or chemical solution may be used, but is not limited thereto. In some cases, expanded polypropylene (EPP) resin in the form of sand or small beads may be used.

On the other hand, the air vent portion 168 is provided with an air vent valve 169 installed over the inside and outside of the elastic pocket portion 160 for the discharge of the internal air when the fluid filler 17 is injected. Accordingly, when the fluid filler 17 is supplied to the enclosed space inside the elastic pocket 160, the inside air in the enclosed space is discharged out through the air vent valve 169, so that air bubbles can be minimized.

8 is a perspective view showing a state in which a pressure distribution device according to another preferred embodiment of the present invention is attached to a block, and FIG. 9 is a view showing a use state of a pressure distribution device according to another preferred embodiment.

8 and 9, the pressure dispersing device 16b according to another embodiment includes an elastic pad portion 164 and an elastic pad portion 164 installed along the rear edge of the block 12 It includes a filler injection portion (162) including an injection tube 163 coupled to one side of the. In addition, an air vent portion 168 provided on one side of the elastic pad portion 164 spaced apart from the injection pipe 163 is provided.

The elastic pad portion 164 is provided with a predetermined filling space 165 in which the filling material 17 can be filled between the block 12 and the slope 2, and the center of the rear edge of the block 12 and the through hole ( 161) It can be installed along the periphery. The elastic pad portion 164 is a packer that prevents external leakage of the fluid filling material 17 filled in the filling space 165, and is a soft rubber whose surface shape can be flexibly deformed according to a curved state of the slope 2 I can be made of silicone.

The filler injection part 162 includes an injection tube 163 having a tube fitting structure, as in one embodiment. The injection tube 163 is located on one side facing the filling space 165 inside the elastic pad portion 164 and the other side is located on the outside of the elastic pad portion 164, so that the elastic pad portion 164 edge It may be coupled to one side, the filler hose 40 is connected to one end of the injection tube 163 located outside the elastic pad portion 164.

The fluid filler 17 is supplied at a predetermined pressure from the outside of the filling space 165 to the inside through the filler hose 40 connected to the filler injection part 162, and the supplied fluid filler 17 is a block ( A type of pressure dispersion that evens the contact state between the slope 2 and the block 12 is formed by curing in an evenly dispersed state in the filling space 165 according to the curvature of the slope 2 facing the back surface of 12). .

The air vent part 168 includes an air vent valve 169 that is installed over the inner and outer parts of the elastic pad part 164. The air vent valve 169 corresponds to the injected volume when the fluid filling material 17 is injected while the filling space 165 between the slope 2 and the block 12 is closed by the elastic pad part 164 It functions to allow as much air to be discharged out of the filling space, whereby filling of the filling material is smoothed and air bubbles in the filling space can be minimized.

10 is a cross-sectional view of a block to which a pressure distribution device according to another preferred embodiment of the present invention is attached, and FIG. 11 is a view showing a use state of a pressure distribution device according to another preferred embodiment.

10 and 11, the pressure distribution device 16c according to another embodiment of the present invention includes an elastic seat portion 166 made of a stretchable elastic material having a through hole 161 at its center. , Filler injection portion (162) including an injection pipe 163 provided on one side of the elastic sheet portion 166 and the air on one side of the elastic sheet portion 166 spaced apart from the injection pipe 163 It includes an air vent portion (168) having a vent valve (169).

The elastic sheet portion 166 is composed of a sheet-like sheet made of a stretchable elastic material, and its edges and the periphery of the through hole are sealed by sealing with a band-shaped member such as bonding or molding through an adhesive to the back of the block. It may be configured to be combined to form a predetermined filling space 165 filled with a filling material between the blocks.

The elastic sheet portion 166 may be, for example, a material having both sealability and elasticity, such as soft rubber or silicone, but is not limited thereto. As long as it is a material having a predetermined sealing property capable of preventing the outflow of a fluid filling material injected into the filling space 165 while being stretchable, it can be applied regardless of a specific material or material.

The filler injection part 162 includes an injection tube 163 having a tube fitting structure. The injection tube 163 may be coupled to one side of the edge of the elastic sheet portion 166 so that a portion thereof is located inside the filling space 165 and the other portion is located outside the filling space 165, and the elastic sheet portion ( Filler hose 40 is connected to one end of the injection pipe 163 located on the outside of 166).

The flowable filler 17 is supplied at a predetermined pressure from the outside of the filling space 165 through the filling hose 40. As the elastic sheet portion 166 is inflated by the fluid filler 17 supplied as described above, it is deformed in response to the curvature of the slope 2, and the fluid filler 17 filled therein is solidified after a predetermined time has elapsed. The part 166 will maintain its deformed state.

As the flowable filler 17, in the soft paste state having flowability, a material having a hardening property as time elapses, such as a liquid grout material such as cement, mortar, and chemicals may be used. Similarly, in some cases, expanded polypropylene (EPP) resin in the form of sand or small beads may be used.

On the other hand, the air vent part 168 includes an air vent valve 169 that is installed over the inner and outer parts of the elastic seat part 166. The air vent valve 169 serves to discharge the inside air in the closed filling space 165 when the fluid filling material 17 is supplied to the closed filling space 165 inside the elastic seat portion 166, Due to this, it is possible to minimize the filling of the filling material and the generation of bubbles in the filling space 165.

Hereinafter, with reference to the accompanying FIG. 4 for the slope reinforcement process performed on the anchoring structure for slope reinforcement according to an embodiment of the present invention will be briefly described.

12 is a construction flow chart schematically showing a slope reinforcement process performed on an anchoring structure for slope reinforcement.

Referring to FIGS. 4 and 12, first, a ground is drilled at a predetermined depth from a slope 2 of a cut or embankment site that requires reinforcement using a drilling equipment (S100). After inserting the tensile reinforcing material 10 into the perforation hole 3 and fixing it by performing grouting (S200), when the grout material is sufficiently cured, the center of the center is on the slope 2 around the entrance of the perforation hole 3 The block 12 is installed so that the tensile reinforcement 10 penetrates.

At this time, by attaching the above-described pressure distribution device 16 to the back surface of the block 12 so that the pressure distribution device 16 is located between the block 12 and the slope 2 when the block 12 is installed (S300), and then The filling hose 40 is connected to the pressure dispersing device 16 and a filling device provided outside is driven to fill the inside of the pressure dispersing device 16 with a fluid filling material 17 supplied at a predetermined pressure ( S400).

The role of evenly distributing the pressure between the block 12 and the slope 2 supporting the load of the block 12 by the fluid filler 17 injected from the outside of the pressure dispersing device 16 to the inside. Forming a pressure dispersion is formed, and then the pressure plate 13 is installed in the center of the front face of the block 12, and a tensioning operation is performed immediately after the injection of the fluid filler 17 is completed or before it is completely cured (S500). .

Tensile work is a process of imparting a tension to the tensile reinforcement 10 using a dedicated tensile equipment such as a cylinder, in a state in which tension is applied by pulling the tensile reinforcement 10 with a tensile equipment outside the perforated hole 3, It includes a process of strongly constraining the front end portion of the tensile reinforcement 10 with the tension head 14 to the pressure plate 13, and then reinforces the slope 2 by covering the tension head 14 with a protective cap 15. This is done.

According to the embodiment of the present invention as described above, by applying the pressure dispersing device, the self-load of the block and the pressing force (force pressing the slope) due to the tension of the tensile reinforcement can be evenly distributed over the entire surface of the slope in contact with the block. . Accordingly, the slope collapse or motion suppression effect through the block is sufficiently exhibited, so that a more stable cut or land can be constructed.

In addition, as the self-load of the block by the pressure dispersing device and the pressing force (force pressing the slope) by the tension of the tensile reinforcement are evenly distributed over the entire surface of the slope in contact with the block, the force pressing the slope is biased to either side. It is possible to reliably improve the problem of block breakage due to cracking of the resulting block or accumulation of fatigue.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it should be understood that the present invention is not limited to the specific forms mentioned in the detailed description, but rather includes all modifications, equivalents, and substitutes within the spirit and scope of the present invention as defined by the appended claims. Should be.

1: anchoring structure
2: slope
3: Perforation Hall
10: tensile reinforcement
12: Block
13: pressure plate
14: tension head
15: protective cap
16a, 16b, 16c: pressure dispersing device
17: fluidity filler
40: hose
160: elastic pocket
161: through
162: Filling material injection part
163: injection tube
164: elastic pad portion
165: filling space
166: elastic sheet portion
168: air vent
169: air vent valve

Claims (11)

A tensile reinforcing material that is fixedly fixed by grouting to a perforated hole of a cut or reclaimed land and is installed such that a part extends out of the perforated hole;
A block through which a hole through which the tensile reinforcing material passes is drilled in the center, and installed on a slope around the entrance of the perforation hole to suppress collapse of a slope of cut or land;
A pressure plate through which a hole through which the tensile reinforcing material passes is drilled in the center, and a part of the front surface of the block contacts the block;
A tension head installed to maintain a tension state of the tensile reinforcement based on the support plate at the exposed end of the tensile reinforcement extending forward of the pressure plate; And
Includes a pressure distribution device installed between the slope and the back surface of the block in order to make the contact surface pressure of the block on the slope uniform.
The tension head is fixed with a wedge at the tip of the tension stiffener in a tense state, and is fixed in a strong contact with the front surface of the pressure plate. Have,
In the pressure dispersing device, the flowable filler is injected at a predetermined pressure, but before the injection of the flowable filler is completed or after the injection is completed, before the flowable filler is cured, the tension reinforcement is tensioned using a tensioning device, and the tip of the tensile reinforcement is recalled. Fixed on the pressure plate through the tension head,
The pressure dispersing device,
It is composed of a sheet-like sheet made of a stretchable elastic material with a through hole formed in the center, and the edges and the periphery of the through hole are hermetically coupled to the back of the block by a sealing method using an adhesive or a belt-shaped member to fill the gap between the blocks. Elastic seat portion (Alastic seat portion) attached to the back of the block to form a predetermined filling space that can be filled,
Filler injection portion (filler injection portion) having an injection pipe coupled to one side of the elastic sheet portion so that some are located inside the filling space and the other part is outside the filling space and
It is installed on one side of the elastic seat portion and consists of a configuration including an air vent portion (Air vent portion) having an air vent valve,
The elastic sheet portion is inflated by a fluid filling material supplied at a predetermined pressure from the outside of the elastic sheet portion to the inside of the elastic sheet portion through a hose connected to the filler injection portion, and is deformed according to the curved state of the slope,
The fluidic filler is an anchoring structure for slope reinforcement, characterized in that it is a grout material of any one of cement, mortar, and chemical liquids. delete delete delete delete delete delete delete delete delete delete

Images