KR102432879B1 - Grouting simultaneous injection pipe - Google Patents

Abstract

The present invention relates to a grooved steel pipe for simultaneous injection of grout, which is implemented to minimize inference with support materials by removing a part of the entrance of a steel pipe for grout injection after grouting is completed. The simultaneous injection steel pipe includes a circular grouting pipe, a plurality of injection holes perforated at regular intervals along the grouting pipe, a center bolt formed to push an expansion member to be in tight contact with a fixing projection (fixing nipple), a finishing end formed to finish the front end of the grouting pipe, and a pusher support ring installed along the outer circumferential surface of the grouting pipe at a predetermined interval from the rear end of the grouting pipe.

Description

Grouting simultaneous injection pipe with grooving

The present invention relates to a co-injected grouting steel pipe having grooving, and more particularly, by removing a part of the inlet portion of a steel pipe for grouting after grouting is completed, the grooving is implemented to minimize interference with support materials. It relates to grouting co-injected steel pipe.

In general, ground improvement methods using graded grouting, which are used to reinforce soft ground or to prevent subsidence of structures built on soft ground, drill a hole in the submerged ground with cement sludge or chemical liquid, which is a fluid inflow material, and forcibly fill and solidify it to make it stronger. It refers to the method of constructing a structure.

This ground reinforcement grouting method is mainly used when excavating a tunnel. Looking at an example of a grouting construction apparatus according to the prior art for carrying out such a grouting method, first, a drilling hole is excavated in the ground, and then a plurality of A steel pipe having outlet holes formed on the same line at equal intervals is inserted, and a grouting fluid injection hose is inserted into the steel pipe.

Then, a caulking member is installed to seal the gap between this drilling hole at the entrance of the drilling hole and the steel pipe, the rear end of the steel pipe is covered with a separate cover, and the grouting liquid is injected into the steel pipe using an external pump. Thus, when the grouting liquid gradually fills the inside of the steel pipe, it exits the steel pipe through the through hole, fills the entire inside of the perforated hole surrounding the outside of the steel pipe, and then cures to complete the grouting work for ground reinforcement.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the derivation of the present invention or acquired in the process of derivation of the present invention, and it cannot be said that it is necessarily a known technique disclosed to the general public before the filing of the present invention. .

Republic of Korea Patent No. 10-0478321

One aspect of the present invention provides a co-injected grouting steel pipe having a groove processing implemented to minimize interference with support materials by removing a part of the inlet part of a steel pipe for grouting after grouting is completed, and a grouting co-injection method using the same. .

The present invention is characterized in that it is a grouting co-injection steel pipe having a groove processing implemented to minimize support material interference by removing a part of the inlet part of a steel pipe for injecting grouting after the completion of grouting.

In one embodiment, the co-injection steel pipe includes a grouting pipe formed in the form of a circular pipe and inserted into the perforated hole, and the grouting that is supplied to the inside through the grouting pipe to the outside of the grouting pipe. A plurality of injection holes formed through a plurality of holes at regular intervals along the pipe, a central bolt formed in the center of the inside of the grouting pipe, and formed to push the elastic member toward the fixing protrusion (fixing nipple) to make close contact, and to close the front end of the grouting pipe a finishing end formed for this purpose, and a ring for push support installed along the outer circumferential surface of the grouting pipe at a predetermined distance from the rear end of the grouting pipe, wherein the simultaneous injection steel pipe is the grouting pipe so that a part of the grouting pipe can be cut a separation groove recessed along the outer circumferential surface of the grouting pipe, a grouting injection pipe manufactured in different lengths to supply grouting to the inner space of the grouting pipe, and a plurality of grouting pipes are installed inside the grouting pipe, and the inside of the grouting pipe A space that is installed along and formed to support the grouting injection pipe installed in the inner space of the grouting pipe, and at least one or more installed along the outside of the grouting pipe to support the grouting pipe in the perforated hole And, a plurality of fixing protrusions (fixing) formed protruding along the inner surface of the grouting tube to support the elastic member so as to prevent the elastic member disposed at the rearmost end from being pushed to the rear end along the inner side of the grouting tube. nipple), an end cover installed to cover the rear end opening of the grouting pipe, and a caulking that is installed outside the rear end of the injection hole to close the gap between the grouting pipe and the drilling hole when caulking liquid is injected A packer module, a check valve installed on one side of the grouting injection pipe to prevent a reverse flow of the grouting supplied into the inner space of the grouting pipe through the grouting injection pipe, and the grouting discharged through the injection hole is again the grouting A non-return valve installed in the injection hole to prevent inflow into the pipe And, a steel pipe fixing member formed on the inner end surface of the drilling hole to fix the grouting tube at the inner end of the drilling hole when the grouting tube is inserted, and the one end of the grouting tube on one side for connection with the grouting tube on the other side In order to connect a connection socket which is screwed to one end of the one end and one end of the grouting pipe on the other side, and the grouting injection pipe formed inside when the grouting pipe is connected, any one of the grouting injection pipes is formed on one side of the grouting injection pipe. It is characterized in that it consists of a connection fitting that becomes.

In another embodiment, the steel pipe further includes a plurality of steel pipe attachment means formed so as to be detachably detachable from the outer surface of the grouting tube to fix the grouting tube to the inner surface of the perforation hole, wherein the steel pipe attachment means is inserted into the outer surface of the grouting tube When inserted into the grouting pipe, the fixed dividing member is divided into a plurality of pieces so as to be adjustable according to the outer diameter of the grouting pipe, and the fixed dividing member is formed on one side so that it can be adjusted by being inserted into the protrusion groove and flowing according to the diameter of the grouting pipe. a spacer protrusion, a protrusion groove formed on the other side of the fixed dividing member so that the spacer is inserted and adjusted to fit the diameter of the grouting pipe, and a steel pipe insertion hole formed in the center of the fixed dividing member so that it can be inserted into the outer surface of the grouting pipe; When inserting into the perforation hole, the adhesion tube formed on the outer surface of each fixed division member in order to fill the space between the fixed division member and the perforation hole and adhere to it, and the upper and lower injection tube for injecting air to the side of the adhesion tube are detachable. An injection nozzle formed on one side of each close contact tube so as to be able to, and an air injection tube formed of a tube having flexibility to inject air into the adhesion tube side by attaching and detaching to the injection nozzle, and a close contact expanding by the air injected into the adhesion tube A pressure sensor formed on one side of each fixed dividing member to sense the pressure applied when the tube is in contact with the perforation hole, and the outer surface of the adhesion tube so that the outer surface of the adhesion tube and the inner surface of the perforation hole are adhered when the adhesion tube is expanded. , characterized in that it consists of a capsule binder that is formed so that the binder flows out between the adhesion tube and the inner surface of the perforation hole by breaking by a certain pressure.

As described above, it is possible to provide the effect of improving the reinforcement performance of the existing tunnel reinforcement method by minimizing the interference of the support material by removing a part of the inlet portion of the steel pipe for injecting the grouting after the completion of the grouting.

1 is an installation view of a grouting simultaneous injection steel pipe having a groove processing of the present invention.
2 is a view showing an embodiment of a steel pipe according to the present invention.
3 is a view showing a non-return valve according to the present invention.
4 is a view showing a connection state according to the present invention.
5A and 5B are detailed views of FIG. 4 .
6 is a flowchart illustrating a method for simultaneous injection of grouting using a simultaneous injection of grouting with a groove processing according to the present invention.
7 is a view showing a steel pipe adhesion means according to another embodiment of the present invention.
FIG. 8 is a detailed view of FIG. 7 .
9 is a view showing a steel pipe fixing means according to another embodiment of the present invention.
FIG. 10 is a detailed view of FIG. 9 .
11 is a view showing a ground fixing means according to another embodiment of the present invention.
12 is a detailed view of FIG. 11 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0016] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is an installation view of a co-injected grouting steel pipe 10 having a groove processing according to the present invention, FIG. 2 is a view showing an embodiment of a steel pipe according to the present invention, and FIG. 3 is a non-return valve according to the present invention It is a view showing a 171, Figure 4 is a view showing a connection state according to the present invention, Figures 5a and 5b are detailed views of Figure 4 .

As shown in the drawing, the simultaneous injection steel pipe 10 is characterized in that it is implemented so that the interference of the support member can be minimized by removing a part of the inlet part of the steel pipe for injecting the grouting after the completion of the grouting.

The simultaneous injection steel pipe 10 is a grouting pipe 100, a spray hole 110, a central bolt 111, a closing end 120, a ring 121 for a pusher support, a separation groove 130, a grouting injection pipe 131 ), elastic member 140, space 141, fixing protrusion (fixing nipple) 150, end cover 151, caulking packer module 160, check valve 170, non-return valve 171, steel pipe It consists of a fixing member 180 , a connection socket 190 , and a connection fitting 191 .

The grouting pipe 100 is formed in a circular pipe shape to be inserted into the perforation hole.

The injection hole 110 is formed to discharge the grouting supplied to the inside through the grouting tube 100 to the outside of the grouting tube 100 , and the injection hole 110 is the grouting tube 100 . ) is characterized in that a plurality of penetrations are formed at regular intervals along the line.

The central bolt 111 is formed to push the elastic member 140 toward the fixing protrusion (fixing nipple) 150 to closely contact the central bolt 111, and the central bolt 111 is formed in the inner center of the grouting pipe 100 do it with

The central bolt 111 can be applied as a pushing type or a pulling type, and the fixing protrusion (fixing nipple) 150 is characterized in that the left and right directions change depending on the pushing time or the pulling type.

The drawing of the present invention shows a pulling type, and it can be seen that the fixing protrusion (fixing nipple) is located on the left side of the elastic member.

In the case of the push type, the fixing protrusion (fixing nipple) should be located on the right side of the elastic member.

The closing end 120 is characterized in that it is formed to close the front end of the grouting pipe (100).

The ring 121 for the pusher support is installed along the outer circumferential surface of the grouting pipe 100 at a predetermined distance from the rear end of the grouting pipe 100 .

The ring 121 for the push support is made to be applied or not applied depending on the construction situation.

The separation groove 130 is formed to cut a part of the grouting tube 100 , and the separation groove 130 is recessed along the outer peripheral surface of the grouting tube 100 .

The grouting injection pipe 131 is formed so as to supply grouting to the inner space of the grouting pipe 100 , and the grouting injection pipe 131 is manufactured in different lengths to be inside the grouting pipe 100 . It is characterized in that a plurality of installations.

The elastic member 140 is installed along the inner side of the grouting pipe 100 to support the grouting injection pipe 131 installed in the inner space of the grouting pipe 100 .

The expansion and contraction member 140 is expanded by moving the central bolt 111, characterized in that it constitutes a closed chamber inside the grouting pipe.

The compartments created by the expansion and contraction member are characterized in that the grouting injection pipe is applied to each compartment to proceed with the simultaneous injection.

In the above, the number of divisions and grouting injection pipes due to the expansion and contraction member may be changed according to the site conditions.

At least one space 141 is installed along the outside of the grouting pipe 100 to support the grouting pipe 100 in the perforated hole.

The fixing protrusion (fixing nipple) 150 is formed to prevent the telescopic member 140 disposed at the rearmost end from being pushed to the rear end along the inner side of the grouting pipe 100, and the fixing protrusion (fixing nipple) The nipple) 150 is formed to protrude along the inner surface of the grouting tube 100 and is formed in plurality to support the elastic member 140 .

The end cover 151 is installed to cover the rear end opening of the grouting pipe 100 .

The caulking packer module 160 is installed outside the rear end of the injection hole 110, and the coating packer module is formed to seal the gap between the grouting pipe 100 and the perforation hole when the caulking liquid is injected. characterized.

The caulking packer module 160 is characterized in that it is applied or not applied depending on the construction situation.

The check valve 170 is formed to prevent backflow of the grouting supplied to the inner space of the grouting pipe 100 through the grouting injection pipe 131 , and the check valve 170 is the grouting injection pipe (131) It is characterized in that it is installed on one side.

The check valve 170 prevents backflow of the grouting fluid, and is applied when backflow is suspected, and is not applied when backflow is not suspected.

The non-return valve 171 is formed to prevent the grouting discharged through the injection hole 110 from flowing into the grouting pipe 100 again, and the non-return valve 171 is the injection hole (110) is characterized in that it is installed.

The non-return valve 171 may be applied or not applied depending on the pressure of the grouting injection at the construction site.

The steel pipe fixing member 180 is formed to fix the grouting pipe at the inner end of the perforated hole when the grouting pipe is inserted. It is characterized in that it prevents 5°~15° from flowing upward, and prevents the phenomenon of being pushed back from the drilling hole due to pressure during grouting.

The steel pipe fixing member may be applied or not applied depending on the construction site and construction method.

The connection socket 190 is formed to interconnect the grouting tube formed on one side and the grouting tube formed on the other side, and the connection socket is partially coupled to a thread formed by the outer circumference of one end of the grouting tube on one side. It is characterized in that a part is formed coupled to the thread formed by the outer periphery of one end of the grouting tube of the other side.

The connection fitting 191 is characterized in that it is formed to connect any one of the grouting injection pipes among the grouting injection pipes formed inside when the grouting pipes are connected.

6 is a flow chart showing a method of simultaneous injection of grouting using the simultaneous injection of grouting steel pipe 10 with groove processing according to the present invention.

As shown in the drawings, the method for constructing the simultaneous injection grouting steel pipe 10 having the groove processing includes a drilling step, a pipe insertion step, a push rod removal step, a grouting injection step, a joint end step, and a caulking step. .

The drilling step is characterized in that the drilling is performed at the end of the tunnel part to form a drilling hole for the insertion of the grouting tube 100 for injecting the grouting.

The pipe insertion step is characterized in that for inserting the grouting pipe 100 using a pusher into the drilling hole formed by the drilling step.

The step of removing the pusher is characterized in that for removing the pusher when the insertion of the grouting tube 100 is completed.

The grouting injection step is characterized in that the grouting is injected through the grouting tube 100 inserted into the perforation hole.

The joint end step is characterized in that a part of the grouting pipe 100 positioned at the entrance of the perforation hole is cut and removed to prevent interference when installing the support member.

The caulking step is characterized in that the caulking solution is injected into the caulking packer module 160 by installing the caulking packer module 160 at the entrance of the drilling hole.

7 is a view showing a steel pipe adhesion means 200, which is another embodiment of the present invention, and FIG. 8 is a detailed view of FIG. 7 .

As shown in the drawing, the steel pipe bonding means 200 is configured to be further included in the simultaneous injection steel pipe 10, and the steel pipe bonding means 200 is grouted to fix the grouting pipe 100 to the inner surface of the drilling hole. It is characterized in that it is formed in plurality so as to be detachable from the outer surface of the tube (100).

The steel pipe adhesion means 200 includes a fixed dividing member 210, a spacing protrusion 211, a protrusion groove 212, a steel pipe insertion hole 213, an adhesion tube 214, an air injection nozzle 215, and an air injection pipe. 216 , a pressure sensor 217 , and a capsule binder 218 .

The fixed dividing member 210 is inserted into the outer surface of the grouting tube 100, and is divided into a plurality so as to be adjustable according to the outer diameter of the grouting tube 100 when inserted into the grouting tube 100.

The spacer protrusion 211 is inserted into the protrusion groove 212 so as to be adjusted to flow according to the diameter of the grouting pipe 100 , and the spacer protrusion 211 is formed on one side of the fixed dividing member 210 . characterized by being

The protrusion groove 212 is formed so that the spacing protrusion 211 can be inserted and adjusted to fit the diameter of the grouting pipe 100, and the protrusion groove 212 is formed on the other side of the fixed dividing member 210. characterized.

The steel pipe insertion hole 213 is formed to be inserted into the outer surface of the grouting pipe 100 , and the steel pipe insertion hole 213 is formed in the center of the fixed dividing member 210 .

The close contact tube 214 is formed to fill the space between the fixed dividing member 210 and the perforated hole when inserted into the perforated hole and closely adhere to it. characterized in that it is formed.

The air injection nozzle 215 is formed so that the upper injection tube and the lower injection tube for injecting air into the adhesion tube 214 side can be detachably attached, and the air injection nozzle 215 is each adhesion tube 214 . It is characterized in that it is formed on one side.

The air injection tube 216 is characterized in that it is formed as a tube having flexibility to inject air to the adhesion tube 214 side to be detachably attached to the injection nozzle.

The pressure sensor 217 is formed to sense the pressure applied when the contact tube 214, which is expanded by air injected into the contact tube 214, comes into contact with the perforation hole, and the pressure sensor 217 is each It is characterized in that it is formed on one side of the fixed dividing member 210 of the.

The capsule binder 218 is formed on the outer surface of the adhesion tube 214 so that the outer surface of the adhesion tube 214 and the inner surface of the perforation hole are adhered to each other when the adhesion tube 214 is expanded. It is characterized in that it is formed so that the binder flows out between the adhesion tube 214 and the inner surface of the perforated hole by breaking by the cracking.

FIG. 9 is a view showing a steel pipe fixing means 300 which is another embodiment of the present invention, and FIG. 10 is a detailed view of FIG. 9 .

As shown in the figure, the steel pipe fixing means 300 is further included in the simultaneous injection steel pipe 10, and the steel pipe fixing means 300 is a grouting pipe 100 inserted into the perforated hole easily toward the inlet side. It is characterized in that it is formed on one side of the grouting pipe 100 to prevent it from falling out.

The steel pipe fixing means 300 is a perforated stopper 310, a close contact driver 311, a large rotation hinge 312, a large flow groove 313, a shaft guide member 314, a member shaft 315, a contact member ( 316 ), a pressing member 317 , a soccer drive groove 318 , a projection insertion groove 319 , and a locking projection 320 .

The perforation stopper 310 is formed so as to be in contact with the surface of the perforation hole, and the perforation stopper 310 is formed on one side of the large rotation hinge 312 .

The close contact driver 311 is formed to be rotated by the contact member 316 , and the close contact driver 311 is formed on the other side of the large rotation hinge 312 .

The large rotation hinge 312 is formed so that the integrated perforated stopper 310 and the close contact driver 311 can be rotated, and the large rotation hinge 312 is formed on the large flow groove 313 formed respectively. characterized in that

The large flow groove 313 is formed so that the drilling stopper 310 can be embedded in the grouting pipe 100 or separated from the grouting pipe 100 , and the large flow groove 313 is the grouting pipe 100 . ) is characterized in that each is formed on both sides in one direction.

The shaft guide member 314 is formed to support the member shaft 315, and the shaft guide member 314 is formed inside one end of the grouting pipe 100.

The member shaft 315 is formed to be moved and pushed into the grouting pipe 100 as it pushes the grouting pipe 100 to the end face of the drilling hole when the pressing member 317 is in contact with the end face of the perforation hole. The member shaft 315 is characterized in that it is inserted through the shaft guide member (314).

When the pressing member 317 comes into contact with the end surface of the perforation hole, the contact member 316 pushes the grouting tube 100 further toward the end surface of the perforation hole, and the member shaft 315 moves toward the adhesion driver 311. It is formed to push the close contact drive unit 311, and the contact member 316 is characterized in that it is formed on one side of the member shaft 315.

The pressing member 317 is formed so as to be in contact with the end surface of the perforation hole by pushing the grouting pipe 100 toward the end surface of the perforation hole, and the pressing member 317 is formed on the other side of the member shaft 315 characterized.

The soccer drive groove 318 is formed so that the member shaft 315 can be inserted into the grouting pipe 100, and the soccer drive groove 318 is formed in the center of the end face of the grouting pipe 100. .

The protrusion insertion groove 319 is formed so that the member shaft 315 inserted into the grouting tube 100 is hooked and fixed to the locking projection 320 at the end of the grouting tube 100, and the projection insertion groove ( 319) is characterized in that the member shaft 315 is formed on one side.

The locking protrusion 320 is formed so that the member shaft 315 can be fixed on the grouting pipe 100 by being caught by the protrusion insertion groove 319, and the locking projection 320 is grouted on both sides of the axial drive groove 318. It is characterized in that it is formed on the tube (100).

11 is a view showing the ground fixing means 400, which is another embodiment of the present invention, and FIG. 12 is a detailed view of FIG. 11 .

As shown in the figure, the ground fixing means 400 is further included in the simultaneous injection steel pipe 10, and the ground fixing means 400 is a grouting pipe 100 inserted into the drilling hole. It is characterized in that it is located in the center without being in contact with it so that it can be inserted.

The ground fixing means 400 includes a ground seating plate 410, a cylinder fixing plate 411, a plate guide 412, a shaft through groove 413, a ground insertion protrusion 414, a striking cylinder 415, and striking air. It consists of a regulator 416 , an extrusion air regulator 417 , a striking member 418 , a magnetic 419 , and a striking pin 420 .

The ground mounting plate 410 is characterized in that it is formed in a circular shape to be seated on the ground.

The cylinder fixing plate 411 is characterized in that it is formed so that the striking cylinder 415 can be fixed at a predetermined interval from the ground seating plate 410 .

The plate guide 412 is formed so that the cylinder fixing plate 411 can be positioned at a predetermined distance from the ground seating plate 410 in one direction, and the plate guide 412 is the ground seating plate 410 . It is characterized in that it is formed on both sides between and the cylinder fixing plate (411).

The shaft through-groove 413 is formed so that a fixing member positioned at the end of the grouting pipe 100 is inserted so that the grouting pipe 100 inserted into the perforation hole does not fall out of the ground. That is, the shaft through groove 413 is characterized in that it is formed in the center of the ground mounting plate (410).

The ground insertion protrusion 414 is formed such that the ground mounting plate 410 is fixed to the ground when seated on the ground so as not to slip when installed on an inclined surface, and the ground insertion protrusion 414 is on one side of the ground mounting plate 410 It is characterized in that a plurality is formed.

The striking cylinder 415 is formed to strike the striking pin 420 to be embedded in the inclined surface, and the striking cylinder 415 is characterized in that it is formed on one side of the cylinder fixing plate 411 .

The striking air regulator 416 is formed to block the injected air so that the driving of the striking cylinder 415 is stopped in a state in which the striking pin 420 is struck, and the striking air regulator 416 is the striking cylinder ( 415) is characterized in that it is formed on one side.

The extrusion air regulator 417 is formed to inject air to open the blocking of the striking air regulator 416 to remove the striking pin 420 to the outside, and to inject air to retract the cylinder shaft, the extrusion air regulator 417 ) is characterized in that the striking cylinder 415 is formed on one side.

The striking member 418 is formed to be in contact with the striking pin 420 to strike the striking pin 420, and the striking member 418 is formed at one end of the cylinder shaft of the striking cylinder 415. do.

The magnetic 419 is formed such that the striking pin 420 is coupled to the striking member 418 due to the retraction of the striking member 418 and can be detached, and the magnetic 419 is the striking member 418 one side It is characterized in that it is formed in

The striking pin 420 is formed to be embedded in the inclined surface by the operation of the striking cylinder 415 , and the striking pin 420 is formed to be inserted into a plurality of the ground mounting plate 410 .

As shown in Figs. 2 and 5a, 5b in the present invention, the length of the grouting pipe is shown as an example, and the value of the grouting pipe can be freely set according to the installation environment.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: simultaneous injection steel pipe
100: grouting pipe 110: injection hole
111: central bolt
120: closing end 121: ring for push support
130: separation groove 131: grouting injection pipe
140: elastic member 141: space
150: fixing protrusion (fixing nipple) 151: end cover
160: caulking packer module 170: check valve
171: non-return valve 180: steel pipe fixing member
190: connection socket 191: connection fitting
200: steel pipe adhesion means 210: fixed dividing member
211: spacing projection 212: projection groove
213: steel pipe insertion hole 214: tight tube
215: air injection nozzle 216: air injection pipe
217: pressure sensor 218: capsule binder
300: steel pipe fixing means 310: perforated stopper
311: close drive base 312: big front hinge
313: large flow groove 314: shaft guide member
315: member shaft 316: close contact member
317: pressing member 318: soccer building groove
319: projection insertion groove 320: locking projection
400: ground fixing means 410: ground mounting plate
411: cylinder fixing plate 412: plate guide stand
413: shaft through groove 414: ground insertion projection
415: striking cylinder 416: striking air regulator
417: extrusion air regulator 418: striking member
419: magnetic 420: striking pin

Claims (3)

In the grouting simultaneous injection steel pipe having a groove processing implemented to minimize the interference of the support member by removing a part of the inlet part of the steel pipe for injecting the grouting after completing the grouting,
The simultaneous injection steel pipe,
A grouting pipe formed in a circular pipe shape and inserted into a perforation hole,
A plurality of injection holes formed through the grouting pipe at regular intervals along the grouting pipe to discharge the grouting supplied to the inside through the grouting pipe to the outside of the grouting pipe;
A central bolt which is formed in the center of the inside of the grouting pipe and is formed to close the elastic member by pushing it toward the fixing protrusion (fixing nipple);
a closing end formed to close the front end of the grouting pipe;
and a pusher support ring installed along the outer circumferential surface of the grouting pipe at a predetermined distance from the rear end of the grouting pipe,

The simultaneous injection steel pipe,
a separation groove recessed along the outer circumferential surface of the grouting pipe so as to cut a part of the grouting pipe;
A grouting injection pipe manufactured in different lengths to supply the grouting to the inner space of the grouting pipe and installed in a plurality of the grouting pipe,
a telescopic member installed along the inner side of the grouting pipe to support the grouting injection pipe installed in the inner space of the grouting pipe;
At least one space installed along the outside of the grouting pipe to support the grouting pipe in the perforated hole;
A plurality of fixing protrusions (fixing nipples) that are formed to protrude along the inner surface of the grouting tube to support the elastic member so as to prevent the elastic member disposed at the rearmost end from being pushed to the rear end along the inner side of the grouting tube. class,
an end cover installed to cover the rear end opening of the grouting pipe;
A caulking packer module installed outside the rear end of the injection hole and formed to seal the gap between the grouting pipe and the perforation hole when the caulking liquid is injected;
a check valve installed on one side of the grouting injection pipe to prevent the grouting supplied to the inner space of the grouting pipe from flowing backward through the grouting injection pipe;
a non-return valve installed in the injection hole to prevent the grouting discharged through the injection hole from flowing back into the grouting pipe;
A steel pipe fixing member formed on the inner end surface of the drilling hole to fix the grouting tube at the inner end of the drilling hole when the grouting tube is inserted;
A connection socket formed by screwing at one end of the grouting pipe on one side and one end of the grouting pipe on the other side for connection with the grouting pipe on the other side as one end of the grouting pipe on the one side;
In order to connect the grouting injection pipe formed inside when the grouting pipe is connected, it consists of a connection fitting formed on one side of the grouting injection pipe of any one of the plurality of grouting injection pipes,

The simultaneous injection steel pipe,
In order to fix the grouting pipe to the inner surface of the drilling hole, it further includes a plurality of steel pipe adhesion means formed so as to be detachable from the outer surface of the grouting pipe,
The steel pipe adhesion means,
A fixed dividing member inserted into the outer surface of the grouting tube and divided into a plurality of pieces so as to be adjustable according to the diameter of the outer surface of the grouting tube when inserted into the grouting tube;
A spacer protrusion formed on one side of the fixed dividing member so that it can be adjusted by being inserted into the protrusion groove and flowing according to the diameter of the grouting pipe;
A protrusion groove formed on the other side of the fixed dividing member so that the spacer is inserted and adjusted to fit the diameter of the grouting pipe;
A steel pipe insertion hole formed in the center of the fixed dividing member so that it can be inserted into the outer surface of the grouting pipe;
A contact tube formed on the outer surface of each fixed division member to fill the space between the fixed division member and the perforation hole when inserted into the perforation hole and adhere;
An air injection nozzle formed on one side of each contact tube so that the upper injection tube and the lower injection tube for injecting air to the adhesion tube side can be detachably attached;
An air injection tube formed of a tube having flexibility to inject air to the adhesion tube side by attaching and detaching it to the injection nozzle;
A pressure sensor formed on one side of each fixed dividing member to sense the pressure applied when the contact tube, which is expanded by the air injected into the adhesion tube, comes into contact with the perforated hole;
It is formed on the outer surface of the adhesion tube so that the outer surface of the adhesion tube and the inner surface of the perforation hole are adhered when the adhesion tube is expanded. Grouting simultaneous injection steel pipe with grooving.
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