KR101058787B1 - Integrated multipacker and slope reinforcement method using the same - Google Patents

Abstract

The present invention relates to an integrated multi-packer 100 and a slope reinforcement method using the same, and more particularly, by increasing the resistance of the packer due to the pressing force and spraying the water repellent material directly between the inner circumferential surface of the hole and the packer, The present invention relates to an integrated multi-packer having excellent adhesion between the perforation hole and the grout and to the slope reinforcement method using the same.

Description

Integrated multipacker and slope reinforcement method using the same

The present invention relates to an integrated multi-packer and a slope reinforcement method using the same. The present invention relates to an integrated multi-packer having excellent adhesion between the drilled hole and the grout and to a slope reinforcing method using the same, by spraying the filler to form a shielding film regardless of the irregularities of the drilled hole.

In general, in the case of a pressurized soil nailing packer, most of the non-woven fabric or rubber membrane is composed of a packer, and the air hole or urethane is foamed therein to block the inlet of the hole.

However, in the case of the perforated hole close to the ground surface during the perforation, the perforated surface is rough and the grout leaks between the packer and the perforated surface depending on the condition of the ground due to the generation of irregularities. In addition, even if pressurized, the adhesion between the perforated surface and the packer should be increased to resist the pressing force. To this end, as the length of the packer is formed, the construction cost is increased due to the increase in the amount of expensive urethane foam. have.

Therefore, the present invention has been made in order to solve the problems of the prior art, it is a packer easy to improve the resistance to the grout pressure and the order of the grout, but is installed from the ground surface and punctured by the fixing unit having a wedge The purpose of the present invention is to construct an integrated multi-packer capable of forming a barrier film by spraying a filler directly between the inner circumferential surface of the hole and the inner circumferential surface of the hole and the packer.

In addition, since the multi-packer of the rigid body is installed from the ground surface, the purpose is to prevent scour and collapse around the perforation hole during rainfall.

In addition, after the injection of the grout is inserted into the integrated multi-packer, a blocking member for blocking the grout inlet, and an expensive pressure-removing member to be reused to remove the expensive shut-off valve used for grout injection.

In addition, after the grout pressurization is completed by the integrated multi-packer according to the present invention, by applying a tension force to the wire mesh itself by press-installing the promising and wire mesh installed in the multi-packer to the green surface or shotcrete formed on the outer surface of the drilling hole. It is an object of the present invention to provide an auxiliary pressure plate that facilitates the sticking of shotcrete and at the same time forms an earth pressure on the ground surface.

According to a feature of the present invention for achieving the above object, the present invention is in close contact with the front surface of the drilling hole, the plate-like pressure portion, and the cylindrical portion is formed extending from one surface of the pressure portion to support the inner peripheral surface of the hole inlet side A reinforcement portion, which is formed in the lower portion of the reinforcement portion and is formed in a cylindrical shape having a diameter smaller than that of the reinforcement portion, and is formed in the lower portion of the periphery portion for forming a direct shielding film between the inner circumferential surface of the perforation hole, It is formed to protrude into a large cylindrical shape, the fixing portion formed with a hollow portion on the inside, the hollow insertion groove is formed in the acupressure portion and the reinforcement portion, the through-hole, the first grout through which the reinforcing material is inserted from the bottom surface of the hollow insertion groove An injection hole and an air discharge port are formed to penetrate the order part and the fixing part, and a filler is injected into the bottom edge of the hollow insertion groove. The multi-packer body is made so that the re-charging inlet only penetrates the reinforcement; A rotational blocking member installed to open and close the first and second grout inlets, the air outlets, and the filler inlets in the hollow insertion grooves of the multipacker body; And a pressurizing member installed in the hollow insertion groove of the multipacker body and configured to pressurize the grout and the filler material by the injection valve.

In the integrated multi-packer according to the present invention, the fixing portion of the multi-packer body is formed with a plurality of wedge pieces protruding on the outer circumferential surface, several incision grooves are formed along the longitudinal direction of the wedge piece, the hollow portion The primary and secondary grout injection pipes extending through the portion are characterized in that the primary and secondary grout injection pipe protrudes by the length of the fixing unit.

In the integrated multi-packer according to the present invention, at least one locking step for preventing the separation of the rotational blocking member 20 is formed on the inner peripheral surface of the hollow insertion groove of the multi-packer body.

In the integrated multi-packer according to the present invention, in the through-hole on the one side of the through-hole reinforcing material is inserted from the bottom surface of the hollow insertion groove of the multi-packer body, the through-hole for the degree of treatment is formed by a predetermined interval along the through-hole It is done.

In the integrated multipacker according to the present invention, the rotation blocking member is formed through the plurality of connection holes having the same diameter as the primary secondary grout inlet, the air outlet, the refill inlet, the water hole and the through hole formed in the multipacker body. And, the engaging groove is formed on the top surface to couple the pressing member, characterized in that configured in a circular plate shape.

In the integrated multipacker according to the present invention, the pressing member has a cylindrical shape having the same diameter as the hollow insertion groove, the primary and secondary grout inlet, the air outlet, the refill inlet and the first and second grout insertion port connecting the through hole. , The air exhaust port, the reorder insert, the refill insert and the reinforcement insert is formed through, the grout insertion port is provided with an injection valve, the lower surface is characterized in that a number of engaging pieces protruding to rotate the rotational blocking member. .

In the integrated multi-packer according to the present invention, is installed in the hollow insertion groove of the multi-packer body, after the grout injection and pressurization is completed, by pressing together the promising state in a state in which the pressing member is removed to create a multi-tension in the prospect A circular plate shape having the same diameter as the shiatsu portion of the packer body is formed, and a fitting hole having the same diameter as the hollow insertion groove is formed on one surface of the circular plate shape, and an auxiliary pressure plate having a through hole for penetrating the reinforcing material is formed in the center. do.

In addition, the slope reinforcement method using an integrated multi-packer according to the present invention comprises the steps of excavating the ground to perform a slope reinforcement to a predetermined depth and diameter to form a drill hole; It is in close contact with the ground surface of the drilling hole, the pressure portion of the plate-like shape, the cylindrical portion is formed extending from one surface of the acupressure portion and the reinforcement portion for supporting the inner circumferential surface of the inlet side of the drilling hole, extending from the lower portion of the reinforcement portion and reinforced It is formed in a cylindrical shape having a diameter smaller than the portion, and the order portion for forming a direct film between the inner circumferential surface of the hole, and is formed extending from the lower portion of the order portion and protruding into a cylindrical shape having a diameter larger than the hole, and the hollow portion formed inside A hollow insertion groove is formed in the fixing unit and the acupressure part and the reinforcing part, and the through hole, the first and second grout inlets, and the air outlet through which the reinforcing material is inserted from the bottom surface of the hollow insertion groove are formed so as to penetrate the order part and the fixing part. At the bottom edge of the hollow insertion groove, a repellent inlet for injecting a repellent member penetrates only a reinforcement part. Signed stage of the tea packer body stiffeners and primary grout hose; Inserting and installing the reinforcing material to which the multipacker body is fastened into a drilling hole; A plurality of connection holes for grout injection are formed in the hollow insertion groove of the multipacker body, and a locking groove for coupling the pressure member is formed on the upper surface, and a rotation blocking member and a primary grout insertion hole formed in a circular plate shape. , An air exhaust port, a refill insert, a refill insert, and a reinforcement insert are formed therein, and an injection valve is installed at the grout insert, and a plurality of catch pieces protrude from the lower surface to rotate the rotation blocking member. Installing it; Injecting the foamed urethane into the ordered portion of the multipacker body and the inner circumferential surface of the punching hole through the order reinsertion opening of the pressing member, and then curing the foamed polyurethane to form the ordered film; A primary grout step of pressurizing and filling grout into the drilling hole through the grout insertion hole of the pressing member; Rotating the rotation blocking member by the pressing member to block the grout inlet, the air outlet, and the filler inlet in the hollow insertion groove of the multipacker body, and then remove the removable pressing member; Installing a promising or rockfall prevention network on the surface of the drilled hole in which the integrated multipacker is installed; Forming a tension force in the prospect by installing the prospect into the auxiliary pressure plate in the hollow insertion groove of the multi-packer; Characterized in that it comprises a; step of laying shotcrete or green soil in the promising force is formed.

According to the integrated multi-packer according to the present invention and the slope reinforcement method using the same, by constructing an integrated multi-packer to form a water repellent film by spraying the water repellent material directly between the inner circumferential surface of the hole and the packer as well as the firm fixing of the packer in the hole It is possible to block grout irrespective of unevenness of the perforated surface while effectively preventing scour and collapse around the perforated hole during rainfall. Will be provided.

In addition, after the grout injection is completed, by allowing the grout injection port to be blocked or sealed by the blocking member, it is possible to reuse the expensive pressure valve used during the injection.

In addition, when rusting or shotcrete is placed, the promising or wire mesh is press-fitted into the packer through the sub-acupressure plate to apply tension to the prospective and wire mesh itself, facilitating the lubrication of nocturnal soil and shotcrete, and at the same time, transferring the ground pressure to the entire surface. It will also provide the effect of preventing collapse.

1 is a perspective view showing an integrated multipacker according to a preferred embodiment of the present invention.
2 is a cross-sectional perspective view showing an integrated multipacker according to a preferred embodiment of the present invention.
Figure 3 is a perspective view showing the construction of the integrated multi-packer according to a preferred embodiment of the present invention.
4 to 9 is a view showing the construction process of the slope reinforcement method using an integrated multi-packer according to a preferred embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

1 is a perspective view showing an integrated multipacker according to a preferred embodiment of the present invention, Figure 2 is a cross-sectional perspective view showing an integrated multipacker according to a preferred embodiment of the present invention, Figure 3 is a preferred view of the present invention It shows a perspective view showing the construction of the integrated multi-packer according to the embodiment.

The integrated multi-packer 100 according to the present invention, as shown in Figures 1 to 2, the acupressure portion 11 in close contact with the front ground of the drilling hole 200, reinforcement portion for supporting the inner peripheral surface of the inlet side of the drilling hole 200 (12), the order part 13 for directly forming the order film S between the inner circumferential surface of the punching hole 200 and the multipacker, and the fixing part 14 for fixing the multipacker itself in the punching hole 200 are integrally formed. The multipacker body 10 formed therein is inserted into the multipacker body 10, and a rotation blocking member 20 for connecting and blocking the grout inlet 16 and the grout is inserted into the multipacker body 10. Removable pressurizing member 30 having an injection valve 36 for injection, and the multi-packer body 10 is mounted on the prospective 60 to form a tension force to the auxiliary pressure plate for forming the ground pressure on the surface (40) It is configured to include).

That is, the integrated multi-packer 100 according to the present invention is a device consisting of a multi-packer body 10, the rotation blocking member 20, the removable pressure member 30, including the injection valve 36, the auxiliary pressure plate 40 to be.

The multipacker body 10 is formed of a plate-shaped acupressure part 11 and the acupressure part 11 extending from one surface thereof, and a reinforcement part 12 protruding to a cylindrical shape having the same diameter as the drilling hole 200. And an order portion 13 extending from a lower portion of the reinforcement portion 12 and protruding into a cylindrical shape having a diameter smaller than that of the reinforcement portion 12, and extending from a lower portion of the order portion 13 and having a perforation hole. A cylindrical groove having a larger diameter than 200 is formed, and a plurality of wedge pieces 14a protrude from the outer circumferential surface thereof, and an incision groove 14c that facilitates expansion and contraction of the fixing part along the longitudinal direction of the wedge piece 14a. ) Is formed, and the fixing portion 14 is formed inside the hollow portion 14b.

In addition, the acupressure part 11 and the reinforcement part 12 are formed with a hollow insertion groove 15 into which the removable pressure member 30 and the auxiliary acupressure plate 40 can be inserted, and the hollow insertion groove 15. One or more locking jaws 15b are formed on the inner circumferential surface to prevent separation of the rotation blocking member 20. In addition, at the center of the lower end of the hollow insertion groove 15, a through hole 15a into which the reinforcing material 50 is inserted is formed to penetrate the order part 13 and the fixing part 14, and one of the through holes 15a. The order hole 15c for the treatment of the inside of the through hole is formed along the through hole 15a at a predetermined interval, and the primary and secondary grout inlets 16 and 16a and the air outlet side are formed next to the through hole 15a. 17 is formed to penetrate the order unit 13 and the fixing unit 14, the hollow portion 14b of the fixing unit 14, the primary grout injection hole 16 penetrating the order unit 13 Primary and secondary grout injection pipes 19 and 19a integrally connected to each other are formed as long as the length of the fixing part 14, and the lower end of the hollow insertion groove 15 has a filler injection hole 18 for injecting a filler material. It is formed to penetrate the reinforcement 12.

The multipacker body 10 is integrally formed in order from the one surface of the acupressure part 11 to the reinforcement part 12, the order part 13, and the fixing part 14, and inserts a reinforcement material 50 such as a nail in the center. The hole is formed through the hollow insertion groove 15 to be penetrated, and a plurality of holes for grout injection, air discharge, and refill injection.

On the other hand, the multipacker body 10 is preferably formed of a rigid body for structural stability and robustness in the drilling hole (200).

When the multi-packer body 10 is inserted into the inner circumferential surface of the drilling hole 200, the acupressure portion 11 is in close contact with the ground of the front portion of the drilling hole 200, the reinforcement portion 12 is the drilling hole 200 Closely adhered to the inner circumferential surface of the inlet part serves to support the inner circumferential surface of the inlet part to prevent scour or collapse of the inlet ground during rainfall. In addition, the fixing unit 14 may be fixed to the inner circumferential surface of the punching hole 200 by the protruding wedge piece 14a so that the wedge piece 14a is fixed to the fixing unit 14 even when a pressing force caused by grout injection is generated. ) Is firmly fixed to the inner circumferential surface of the drilling hole 200, the multipacker body 10 has a sufficient resistance to the grout pressing force. Then, by the several incision grooves 14c formed along the length of the fixing unit 14, the predetermined distance is stretched and contracted within the diameter range of the fixing unit, and the shape of the wedge piece 14a faces the lower side and the horizontal surface faces the upper side. As it is formed to face the insertion is easy and firmly fixed to the inner circumferential surface of the drilling hole (200). In addition, when the repellent portion of the foamed urethane material is injected into the order portion 13 formed with a smaller diameter than the reinforcement portion 12 and the fixing portion 14 between the reinforcing portion 12 and the fixing portion 14, While the filler is directly filled between the outer circumferential surface of the part 13 and the inner circumferential surface of the punching hole 200, the grout is blocked by forming a lining film S between the ordering part 13 and the inner circumferential surface of the punching hole 200. This makes it possible to form an effective order treatment or the order film S with only a small amount of foamed urethane on the inner circumferential surface of the drilling hole 200. Therefore, the order film S formed directly on the inner circumferential surface of the drilling hole 200 increases resistance to the grout pressing force of the multipacker body 10 itself.

The rotation blocking member 20 is inserted below the locking jaw 15b of the inner circumferential surface of the hollow insertion groove 15 of the multipacker body 10 and formed through the lower end of the hollow insertion groove 15. Primary and secondary grout inlets (16,16a) formed in the multipacker body (10, 16) for connecting and disconnecting the air outlet (17, 16a), the air outlet port (17), the order hole (15c), and the refill inlet port (18). ), A plurality of connecting holes 21, 22, 23, 24, and 26 having the same diameter as the air outlet 17, the refill inlet 18, the receptacle 15c, and the through hole 15a, The engaging groove 25 is coupled to the pressing member 30 so as to apply rotation to the top surface, and is formed in a circular plate shape.

The removable pressure member 30 is inserted into the hollow insertion groove 15 of the multipacker body 10 so as to pressurize the grout and the water repellent by the injection valve 36, and the hollow insertion groove 15 Primary and secondary grout inlets (16, 16a), air outlets (17), order refill inlets (18) and through holes (15a) connecting cylindrical grouts having the same diameter as 32a), an air exhaust port 33, a refill insert 34, a refill insert 36 and a reinforcement insert 31 are formed therein, and the grout insert 32 is a screw thread for connection of the injection valve 36; Is formed, the lower surface is formed with a number of engaging pieces 35 protruding to rotate the rotation blocking member 20.

The removable pressing member 30 is inserted into the hollow insertion groove 15 of the multipacker body 10 to pressurize the grout and the lining member, and protrudes from the lower surface of the removable pressing member 30. The first and second grout insertion openings 32 and 32a and the air exhaust port 33 of the removable pressure member 30 are inserted by inserting the locking pieces 35 into the locking grooves 25 of the pre-inserted rotary blocking member 20. ), The order reinsertion hole 34 and the order reinsertion hole 36 are inserted to coincide with the plurality of connection holes 21, 22, 23, 24, and 26 of the rotation blocking member 20. In addition, by screwing the injection valve 36 into the thread formed in the upper grout insertion opening 32 and the air exhaust 33 of the removable pressure member 30, it is possible to pressurize the grout and the filler. In addition, when the injection is completed, the pressing member 30 rotates the pressing member 30 to be reused so that the rotation blocking member 20 is formed in the hollow insertion groove 15. It is possible to remove the pressurizing member 30 from the hollow insertion groove 15 by blocking the outlet 17, the repellent inlet 18, the order hole (15c).

The auxiliary acupressure plate 40 has a circular plate shape 41 having the same diameter as the acupressure part 11 of the multipacker body 10 so that the grout injection and pressurization is completed, so that the auxiliary insertion plate can be inserted into the hollow insertion groove 15 in a cover manner. ) Is formed, a fitting hole 42 having the same diameter as the hollow insertion groove 15 is formed on one surface of the circular plate, a through-hole 43 through which the reinforcing material 50 is formed in the center.

The sub-acupressure plate 40 is such that the sub-acupressure plate 40 is promising 60 to be in close contact with the ground surface or the wire mesh of the prospective 60 is installed for the production of shotcrete and greening on the ground surface on which the drilling hole 200 is formed. Alternatively, the wire 60 is pressed into the hollow insertion groove 15 of the multi-packer 100 while pressing the wire mesh, and the prospect 60 is brought into close contact with the ground as the prospect 60 is pulled flat.

Hereinafter, the slope reinforcement method using the integrated multi-packer 100 according to the present invention having the configuration as described above will be described.

Slope reinforcement method using the integrated multi-packer 100 according to the present invention increases the resistance corresponding to the grout pressure in the front ground and the inlet portion of the inner periphery of the drilling hole 200, the drilling hole 200 and the multi-packer body (10) By forming a direct order film (S) therebetween, it is a method for building a stable reinforcement structure with improved adhesion between the grout and the hole (200).

Referring to Figures 4 to 9, the step of excavating a predetermined depth and diameter on the ground for performing the slope reinforcement to form a punching hole 200 (S301);

Fastening step (S302) of the multipacker body 10 and the reinforcing material 50 and the primary grout hose 19a for installing in the drilling hole 200;

Inserting and installing the reinforcement member 50 to which the multipacker body 10 is fastened into the drilling hole 200 (S303);

Installing a rotating blocking member (20) and a removable pressing member (30) for grout injection in the hollow insertion groove (15) of the multipacker body (10) (S304);

After the foam urethane is injected into the order portion 13 and the inner circumferential surface of the punching hole 200 of the multipacker body 10 through the order reinsertion hole 34 of the pressing member 30, the foam urethane is cured to form a water repellent film (S). Forming a step (S305);

A primary and secondary grout step (S306) for pressurizing and filling grout in the drilling hole (200) through the primary and secondary grout insertion holes (32, 32a) of the pressing member (30);

The rotation blocking member 20 is rotated by the pressing member 30 so that the primary and secondary grout inlets 16 and 16a and the air outlet 17 in the hollow insertion groove 15 of the multipacker body 10 are different from each other. Blocking the manual (15c) and the re-order inlet 18, the step of removing the removable pressing member 30 (S307);

Installing a prospect 60 or a rockfall prevention network on the surface of the drilling hole 200 in which the multipacker body 10 is installed (S308);

Forming a tension force in the prospective 60 by installing the prospective 60 to be press-fitted into the auxiliary bearing plate 40 in the hollow insertion groove 15 of the multipacker body 10 (S309);

Comprising the step (S310) to install shotcrete or rust soil on the promising force 60 is formed.

Slope reinforcement method using the integrated multi-packer 100 as described above is excavated the slope to form a drilling hole 200, the multi-packer body 10 and the primary grout hose (19a) in the drilling hole 200 Install the reinforcing material 50 is fastened, and the degree of treatment and the first grout is performed.

In the above, the multipacker body 10 and the reinforcing member 50 are fastened to the multipacker body 10 having an integral form in the order of the acupressure part 11, the reinforcement part 12, the order part 13, and the fixing part 14. By inserting the reinforcing material 50 (a nail or a steel wire can be used) into the through hole 15a formed through the hollow insertion groove 15 from the inner central portion of the hollow insertion groove 15 to the fixing portion 14, the fastening is made simple. When the multipacker body 10 including the reinforcing material 50 is inserted into the drilling hole 200, the acupressure part 11 is in close contact with the inlet surface of the drilling hole 200, and the reinforcing part 12 is the inner peripheral surface of the inlet side. The fixing unit 14 is tightly fixed to the inner circumferential surface of the drilling hole 200 by the wedge pieces 14a. (See FIG. 4).

And only the primary grout injection pipe (19) of the primary grout injection pipe (19, 19a) protruding to the hollow portion 14b of the fixing unit 14 before inserting the multi-packer body (10) The grout hose 19a is extended and the secondary grout injection pipe 19 is closed with a stopper.

The filler injection and the first grout injection is inserted into the removable pressing member 30 in the hollow insertion groove 15 of the multi-packer body 10, the rotational blocking member 20 in the lower portion of the pressing member 30 To be positioned. In this case, the rotation blocking member 20 may be directly installed in the hollow insertion groove 15, or may be installed in the pressure member 30 and inserted into the hollow insertion groove 15 together with the pressure member 30. In addition, the fastening of the pressing member 30 and the rotation blocking member 20 to the locking piece 35 and the locking groove 25 formed on the lower surface of the pressing member 30 and the upper surface of the rotating blocking member 20, respectively. And the first and second grout insertion openings 32 and 32a of the removable pressure member 30, the air exhaust port 33, the water hole insertion hole 36, and the water filler reinsertion hole 34 are rotation blocking members. Each of the connecting holes 22, 23, 24, 26 of the 20 is matched. And in the case of the rotation blocking member 20 is separated by the locking jaw (15b) formed in the hollow insertion groove (15) of the multi-packer 100, the separation is suppressed (see Figure 5).

Meanwhile, in order to inject the water repellent material and the grout, each insertion hole 32, 32a, 33, 34, 36 and the rotation blocking member 20 of the pressing member 30 when the rotary blocking member 20 and the pressing member 30 are inserted. ), Each of the connection holes 22, 23, 24, and 26 has a primary and secondary grout inlets 16, 16a, an air valve outlet 17, a hole 15c, and a refill inlet in the multipacker body 10. (18) must be inserted to match.

Next, the order film S is formed by injecting the order material through the order reinsertion hole 34 at the upper side of the pressing member 30. At this time, the degree of water treatment is directly performed between the outer periphery of the degree unit 13 and the inner circumferential surface of the drilling hole 200 through the degree of refilling inlet 18 penetrating through the reinforcing part 12 to form the degree of membrane S. Accordingly, a small amount of foamed urethane is used to form a water-repellent film S which seals the space between the reinforcement 12 and the fixing unit 14 and between the outer periphery of the order 13 and the inner circumferential surface of the drilled hole 200. (See Figure 6)

In addition, by injecting the repellent material into the through-hole 15a into which the reinforcing material is inserted, the water repellent hole 15c formed on the side of the through-hole 15a, a perfect order treatment for grout leakage is performed. At this time, injection of the filler material of the through hole 15a inserts the filler material into the filler hole insertion hole 36 of the pressing member, and the injected filler material is along the length of the through hole 15a on the side of the through hole 15a. The order material is filled in the order holes 15c formed at predetermined intervals to form the order films.

Next, the primary grout is injected after the order film S is cured according to the order treatment, and is first grouted by the injection valve 36 connected to the upper side of the pressure member 30. At this time, the grout is injected through the injection valve 36, the primary grout insertion hole 32, the primary grout injection port 16, the primary grout injection pipe 19, and the primary grout hose 19a. And even though the grout is tightly filled in the drilling hole 200 by the primary grout, even if a pressing force is generated, the multipacker body 10 is tightly fixed by the water-repellent film S and the wedge piece 14a to secure the resistance. The packer body 10 is prevented from being pushed out of the punching hole 200 (see FIG. 7).

Next, when the primary grout process is completed, the rotation blocking member 20 is rotated by the pressing member 30 to form the primary secondary grout inlets 16 and 16a of the multipacker body 10 and the air valve outlet ( 17), the order hole 15c and the order refill inlet 18 are blocked and blocked, and the pressing member 30 is removed from the hollow insertion groove 15. That is, since the valve is not blocked until the grout is solidified due to the rotation blocking member 20, the expensive injection valve 36 is removed and reused.

On the other hand, in the case of secondary grout, if the construction problem occurs such that the grout is not tightly filled in the drilling hole after the first grout, the secondary grout is provided for the supplementary process to perform the second grout. The grout is injected into the insertion hole 32a to perform the second grout operation by the secondary grout injection port 16a and the secondary grout injection pipe 19a. The secondary grout injection pipe (19a) that is to spray the grout is blocked with a stopper to prevent the grout or foreign matter from entering the primary grout.

Next, the prospective 60 is installed on the surface of the drilling hole 200 for shotcrete and greening, and the auxiliary pressure plate 40 is formed together with the prospective 60 to form a tension force to tightly adhere the prospect to the ground. It is installed by press-fitting into the hollow insertion groove 15 of the multipacker 100 (see FIGS. 8 to 9).

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: integrated multipacker 200: punched hole
DESCRIPTION OF SYMBOLS 10 Multipacker body 11 Acupressure part 12 Reinforcement part 13 Order part
14: fixing part 14a: wedge piece 14b: hollow part 14c: incision groove
15: hollow insertion groove 15a: through hole 15b: locking jaw 15c: order
16, 16a: 1st and 2nd grout inlet 17: Air outlet 18: Recharging inlet
19, 19a: 1st and 2nd grout injection pipe
20: rotation blocking member 21, 22, 23, 24, 26: connection hole 25: locking groove
30: pressure member 31: reinforcing material insertion hole 32, 32a: primary and secondary grout insertion hole
33: air exhaust 34: water re-insertion opening 35: locking piece 36: injection valve
40: auxiliary pressure plate 41: circular plate 42: fitting hole 43: through hole
50: reinforcement

Claims (8)

It is in close contact with the ground surface of the drilling hole 200, the acupressure part 11 of the plate shape,
A cylindrical shape extending from one side of the acupressure part 11 and a reinforcing part 12 supporting an inner circumferential surface of the inlet side of the drilling hole 200;
An order portion 13 extending from a lower portion of the reinforcement part 12 and formed into a cylindrical shape having a diameter smaller than that of the reinforcement part 12, and for forming a direct order film S between inner circumferential surfaces of the perforation hole 200;
A fixing portion 14 extending from the lower portion of the order portion 12 and protruding to a cylindrical shape having a diameter larger than that of the punching hole 200, and having a hollow portion formed therein;
A hollow insertion groove 15 is formed in the acupressure part 11 and the reinforcement part 12, and the through hole 15a through which the reinforcing material 50 is inserted from the bottom surface of the hollow insertion groove 15, primary and secondary. The grout inlets 16 and 16a and the air outlet 17 are formed to penetrate the order unit 13 and the fixing unit 14, and the order order injecting the order material to the bottom edge of the hollow insertion groove 15 A multipacker body 10 configured such that the inlet 18 penetrates only the reinforcement 12;
Rotation blocking member installed to open and close the primary and secondary grout inlets 16 and 16a, the air outlet 17, and the embroidery inlet 18 in the hollow insertion groove 15 of the multipacker body 10 ( 20);
And a pressurizing member 30 installed in the hollow insertion groove 15 of the multipacker body 10 so as to pressurize and grout the grout and the filler material by the injection valve 36. Multipacker.
According to claim 1, wherein the fixing portion 14 of the multi-packer body 10 has a plurality of wedge pieces 14a protrudingly formed on the outer outer circumferential surface, several along the longitudinal direction of the wedge piece 14a An incision groove 14c is formed, and the hollow portion 14b extends to the primary and secondary grout inlets 16 penetrating the order portion 13 so that primary and secondary grout injection pipes 19 and 19a are provided in the fixing unit. An integrated multipacker, characterized in that it protrudes as long as the length of (14). The integrated multipacker according to claim 1, wherein at least one hooking jaw (15b) is formed on an inner circumferential surface of the hollow insertion groove (15) of the multipacker body (10) for preventing the rotation blocking member (20) from being separated. . According to claim 1, wherein the difference for the order processing in the through hole (15a) in one side of the through hole (15a) in which the reinforcing material 50 is inserted from the bottom surface of the hollow insertion groove (15) of the multipacker body (10) Integrated multipacker, characterized in that the hand (15c) is formed along the through hole (15a) by a predetermined interval.
According to claim 1, wherein the rotation blocking member 20 is formed in the multi packer body 10, the primary grout inlet (16, 16a), the air outlet (17), the refill inlet (18), 15c and a plurality of connection holes 21, 22, 23, 24, and 26 having the same diameter as the through holes 15a are formed therethrough, and a locking groove 25 is formed to couple the pressure member 30 to the upper surface thereof. And, integral multipacker, characterized in that configured in the shape of a circular plate.
The method of claim 1, wherein the pressing member 30 is a cylindrical shape having the same diameter as the hollow insertion groove 15, the primary and secondary grout inlet (16, 16a), the air outlet 17, the water refill inlet 18 And primary and secondary grout insertion holes 32 and 32a connecting the through holes 15a, air exhaust holes 33, order reinsert holes 34, order retract holes 36, and reinforcement insert holes 31. , The grout insertion hole (32) is provided with an injection valve 36, the lower surface integral multipacker, characterized in that several locking pieces (35) protruding so as to rotate the rotation blocking member (20).
According to claim 1, It is installed in the hollow insertion groove (15) of the multi-packer body 10, after the grout injection and pressurization is completed, press the promising 60 together in a state in which the pressing member 30 is removed, promising A circular plate 41 having the same diameter as the acupressure part 11 of the multipacker body 10 is formed in order to form a tension force, and a fitting hole 42 having the same diameter as the hollow insertion groove 15 is formed on one surface of the circular pack shape. ) Is formed, and the integrated multi-packer, characterized in that the auxiliary pressure plate (40) formed with a through hole (43) through which the reinforcing material (50) is formed in the center.
Digging a ground with a predetermined depth and a diameter to perform slope reinforcement to form a drilling hole 200 (S301);
The drilling hole 200 is in close contact with the front ground of the drilling hole 200, the plate-shaped acupressure portion 11 and the cylindrical portion is formed extending from one surface of the acupressure portion 11 and the inner peripheral surface of the inlet side of the drilling hole 200 The reinforcement part 12 supporting and extending from the lower part of the reinforcement part 12 and formed into a cylindrical shape having a diameter smaller than the reinforcement part 12, and the formation of the order film S directly between the inner circumferential surface of the perforation hole 200 The order portion 13, and extending from the lower portion of the order portion 12 is formed to protrude into a cylindrical shape having a larger diameter than the punching hole 200, the fixing portion 14 formed with a hollow portion on the inside, the acupressure A hollow insertion groove 15 is formed in the part 11 and the reinforcement part 12, and a through hole 15a through which the reinforcing material 50 is inserted from the bottom surface of the hollow insertion groove 15, and a primary grout injection hole. (16, 16a) and the air outlet 17 is formed to pass through the order portion 13 and the fixing unit 14, the lower surface of the hollow insertion groove (15) Edge, the fastening step of the reinforcing portion 12, a multi-packer made to be only through the main body 10 and the reinforcement 50 and the primary grout hose (19a) (S302), the order feat inlet 18 for injecting the liner;
Inserting and installing the reinforcement member 50 to which the multipacker body 10 is fastened into the drilling hole 200 (S303);
A plurality of connection holes 21, 22, 23, 24, and 26 for grout injection are formed in the hollow insertion groove 15 of the multipacker body 10, and the pressing member 30 is coupled to the upper surface thereof. The locking groove 25 is formed, and the rotary blocking member 20 and the primary and secondary grout insertion holes 32 and 32a, the air exhaust port 33, the refill insert hole 34, and the hole insert hole 36 are formed in a circular plate shape. And the reinforcing material insertion hole 31 are formed therein, the grout insertion hole 32 is provided with an injection valve 36, and several locking pieces 35 are provided on the lower surface to rotate the rotational blocking member 20. Installing a protruding pressure member 30 is formed (S304);
After the foam urethane is injected into the order portion 13 and the inner circumferential surface of the punching hole 200 of the multipacker body 10 through the order reinsertion hole 34 of the pressing member 30, the foam urethane is cured to form a water repellent film (S). Forming a step (S305);
A primary grout step (S306) for pressurizing and filling grout in the drilling hole (200) through the grout insertion hole (32) of the pressing member (30);
The grout inlet 16 and the air outlet 17 and the water repellent inlet 18 in the hollow insertion groove 15 of the multipacker body 10 are rotated by rotating the rotation blocking member 20 by the pressing member 30. After blocking, removing the removable pressure member 30 (S307);
Installing a promising 60 or a rockfall prevention network on the surface of the drilled hole 200 in which the integrated multi-packer 100 is installed (S308);
Forming a tension force in the prospective 60 by installing the prospective 60 to be press-fitted into the auxiliary bearing plate 40 in the hollow insertion groove 15 of the multipacker 100 (S309);
Slope reinforcement method using an integrated multi-packer, characterized in that it comprises a; (S310) to install shotcrete or rust soil on the prospect 60, the tension is formed.

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