KR102604502B1 - Improved Support Material Interference steel pipe and construction method using the same - Google Patents

Abstract

The present invention applies a backflow prevention module to prevent the grouting agent from flowing back, and the grouting injection pipe is made of Excel hose and PE hose to facilitate cutting or finishing work. It is manufactured and applied as one grouting injection pipe, and the partition wall is made of 2. This is about ISMI steel pipe and a construction method using it that allows application beyond the point and improves steel pipe interference during support installation by applying a steel pipe extension pipe to improve constructability.

Description

ISMI steel pipe and construction method using the same {Improved Support Material Interference steel pipe and construction method using the same}

The present invention relates to an ISMI steel pipe and a construction method using the same. More specifically, the backflow prevention module is applied to prevent the grouting agent from flowing back, and the grouting injection pipe is made of Excel hose and PE hose to facilitate cutting or finishing work. ISMI steel pipe and construction method using it are manufactured and applied as one piece of grouting injection pipe, allow the partition wall to be applied at 2 points or more, and apply a steel pipe extension pipe to improve constructability to improve steel pipe interference during support installation. It's about.

In general, grout or grouting is used to strengthen the bearing capacity of the excavated ground when constructing a tunnel, etc. in civil engineering work, or to inject filler into cracks and cavities in the ground for water leak prevention work and soil stability. This means that the filler (also called 'grouting material') is filled using gravity or a pump.

This grouting method installs a steel pipe in the ground, installs a packer inside the steel pipe, injects grouting material and solidifies it, making the steel pipe and the ground one, and increases the shear strength of the soil and rock. The injection is carried out inside the steel pipe. Therefore, it is a very advantageous construction method in terms of constructability and economic feasibility.

Typically, the steel pipe grouting method consists of drilling soft ground, inserting a steel pipe with a strainer installed in the drilling hole, inserting a sealing material between the steel pipe and the drilling hole, and injecting cement while installing a packer.

However, since this method inserts the steel pipe after drilling, it is impractical because it is difficult to insert the steel pipe in soft soil ground where the drill hole is difficult to maintain due to the collapse of the drill hole and the mixing of foreign substances.

Republic of Korea Patent No. 10-0478321

The purpose of the present invention is to prevent backflow of grouting agent inside the injection pipe using a backflow prevention module.

In addition, the purpose is to manufacture grouting injection pipes from Excel hose or PE hose to facilitate cutting or finishing work on site and to prevent damage when moving the steel pipe.

In addition, the purpose is to enable production of more than 2 points by applying a partition wall inside the steel pipe.

In addition, the purpose is to improve steel pipe interference during support installation by applying steel pipe extension pipes to improve constructability.

The present invention is characterized by an ISMI steel pipe that penetrates into the ground and allows grouting to reinforce the ground, and a construction method using the same.

In one embodiment, the ISMI steel pipe is a circular pipe that is formed to be inserted into a drilling hole formed in a tunnel, and the grouting liquid injected into the grouting steel pipe can be discharged to the outside of the grouting steel pipe. A plurality of grouting ejection holes formed through the circumferential surface of the grouting steel pipe at regular intervals in the longitudinal direction, at least one space installed along the outer side of the grouting steel pipe to support the grouting steel pipe in the perforated hole, and the grouting steel pipe A cap formed on one end of the grouting steel pipe to finish the end, at least one partition installed to support the grouting injection pipe in the inner space of the grouting steel pipe, and grouting to supply grouting liquid into the interior of the grouting steel pipe. A grouting injection pipe installed in the center of the steel pipe, and a backflow prevention module formed so that both sides of the cut grouting injection pipe can be connected by cutting one side of the grouting injection pipe to prevent backflow after injection of the grouting liquid injected through the grouting injection pipe. And, the injection pipe fixture is formed on both sides of the backflow prevention module so that the grouting steel pipe cut on both sides can be inserted into both sides of the backflow prevention module, and when injecting from one side through the grouting injection pipe, the grouting liquid is injected to the other side by pushing the unit spring. , a check unit formed inside the backflow prevention module that returns to the initial position by the unit spring upon completion of grouting solution injection and adheres closely to the injection pipe fixture on one side to prevent the grouting solution injected to the other side from flowing back in one direction; and a grouting solution. A unit spring formed in close contact with the check unit on one side of the backflow prevention module to push the check unit, which has been moved to the other side of the backflow prevention module by the injection pressure during injection, to the initial position when injection is completed, and the length of the grouting steel pipe depending on the construction. When extending, the connection socket is formed to connect the grouting steel pipe on one side and the grouting steel pipe on the other side by mutual screw connection, supports one side of the grouting injection pipe, and prevents one side from leaking grouting liquid from inside the grouting steel pipe. The grouting steel pipe is deeply inserted into the drilling hole to install a finishing cover that is formed on one side of the grouting steel pipe and a support material when inserting the grouting steel pipe into the drilling hole. After inserting the grouting steel pipe, it can be separated and reused, or the grouting pipe can be separated by cutting the cutting groove. It includes a steel pipe extension pipe extending from one end of the steel pipe, and a cutting groove formed around one side of the steel pipe extension pipe to cut and separate the steel pipe extension pipe protruding outside the perforation hole. The ISMI steel pipe and the construction method using the same include the ISMI steel pipe. A 13M drilling operation step for drilling a 13M drilling hole at the end of the tunnel to form a drilling hole for insertion, a steel pipe insertion step for inserting a grouting steel pipe into the drilling hole formed by the drilling operation step, and the entrance of the drilling hole. A caulking operation step to finish the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe and the perforation hole, a steel pipe extension pipe separation step to separate the steel pipe extension pipe from the grouting steel pipe to prevent interference with the support material when installing the support material, and , a grouting liquid injection step in which the grouting liquid is injected into the grouting steel pipe to fill the inside of the grouting steel pipe, and then flows out to the outside to fill the drilled hole and the inside of the grouting steel pipe; and a support material is placed inside the tunnel after the grouting liquid injection step. It consists of a support re-installation step, and the ISMI steel pipe and construction method using it include a 13M drilling operation step to drill a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting the ISMI steel pipe, and a drilling operation step. A steel pipe insertion step for inserting a grouting steel pipe into the perforation hole formed by a steel pipe insertion step, a caulking operation step for finishing the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe at the entrance of the perforation hole and the perforation hole, and the inside of the grouting steel pipe. A grouting liquid injection step in which the grouting liquid is injected to fill the inside of the grouting steel pipe and flows out to the outside to fill the drilled hole and the inside of the grouting steel pipe, and a support material installation in which a support material is installed on the inside of the tunnel after the grouting liquid injection step. It is characterized by being done in stages.

In another embodiment, the ISMI steel pipe further includes a drilling hole heating unit for providing hot air inside the drilling hole to increase the curing speed of the grouting liquid injected into the drilling hole, and the drilling hole heating unit includes a hot air blower. A seating opening and closing plate is fixed to one side of the entrance to the drilling hole so that it can be opened and closed, one side of the seating opening and closing plate is fixed to one side of the entrance to the drilling hole, and the other side is positioned toward the center of the seating opening and closing plate so that it can be opened and closed by rotation. An opening and closing hinge is formed, a plate fastening bolt is formed to secure the seating opening and closing plate to one side of the entrance to the drilling hole, and a plate is formed to sit on the seating opening and closing plate to generate warm air to be provided to the injection tube through the injection pipe and the pressure regulator. A hot air blower, one side connected to one side of the hot air blower to provide warm air generated from the hot air blower to the injection tube, and the other side connected to a detachable member to form an injection pipe, and an injection pipe to control the pressure of the warm air to be provided to the injection tube. A pressure regulator formed on one side, a detachable member formed on one side to support one side of the injection pipe and one side of the injection tube, a connecting bar formed on one side of the outer circumference of the grouting steel pipe to allow the injection tube to be connected to the other side, and a connection bar for injecting warm air. A detachable member formed on one side of the connecting rod so that the injection pipe can be attached and detached, a tube fixture formed on the other side of the outer circumference of the grouting steel pipe to support the other side of the injection tube coupled to one side of the connecting rod, and a perforated hole for directing warm air from the injection pipe. An injection tube with one side connected to a connecting rod and the other side connected to a tube fixture so that the warm air for spraying toward the inner side can be moved, and a plurality of injection tubes formed on the injection tube to spray warm air provided from the injection pipe toward the inner side of the perforation hole. It includes a temperature sensor formed on one side of the tube fixture to detect the temperature of the injection hole and the inside of the perforation hole and provide the detected information to the heater so that the heater can be driven and stopped according to the temperature inside the perforation hole. It is characterized by

As mentioned above, the backflow prevention module is used to prevent backflow of the grouting agent inside the injection pipe, which has the effect of shortening construction time by eliminating the need to bend or block the grouting injection pipe, and the need to apply a quick-setting agent so that the grouting agent can harden quickly. This provides the effect of reducing costs.

In addition, the grouting injection pipe is made of Excel hose or PE hose, making it easy to cut or finish on site, and preventing damage to the hose when moving the steel pipe within the tunnel.

In addition, by applying a partition wall inside the steel pipe, it provides the effect of making it possible to manufacture it according to the site.

In addition, the steel pipe extension pipe is applied to improve constructability by improving steel pipe interference during support installation.

Figure 1 is a diagram showing the ISMI steel pipe of the present invention and the construction method using the same.
Figure 2 is a diagram showing another embodiment of Figure 1.
Figures 3a and 3b are block diagrams of the construction method for Figure 1.
Figure 4 is a diagram showing a drilling hole heating unit, which is another embodiment of the present invention.
Figure 5 is a detailed view of Figure 4.
Figure 6 is a view showing a horizontal maintenance insertion part, which is another embodiment of the present invention.
Figure 7 is a detailed view of Figure 6.
Figure 8 is a view showing a mixing fixing unit, which is another embodiment of the present invention.
Figure 9 is a detailed view of Figure 8.
Figure 10 is a view showing a steel pipe support portion according to another embodiment of the present invention.
Figure 11 is a detailed view of Figure 10.

The detailed description of the present invention described below refers to the accompanying drawings, which show by way of example 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 invention. It should be understood that the various embodiments of the present invention are different from one another but are not necessarily mutually exclusive. For example, specific shapes, structures and characteristics described herein may be implemented in one embodiment without departing from the spirit and scope of the invention. Additionally, 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 invention. Accordingly, the detailed description that follows is not intended to be taken in a limiting sense, and the scope of the invention is limited only by the appended claims, together with all equivalents to what those claims assert, if properly described. Similar reference numbers in the drawings refer to identical or similar functions across various aspects.

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

Figure 1 is a view showing the ISMI steel pipe 100 of the present invention and the construction method using the same, Figure 2 is a view showing another embodiment of Figure 1, and Figures 3a and 3b are Figures This is a block diagram of the construction method for 1.

As shown in the drawing, the ISMI steel pipe 100 of the present invention is characterized in that it penetrates into the ground and allows grouting to reinforce the ground.

The ISMI steel pipe 100 includes a grouting steel pipe 110, a grouting discharge hole 111, a space 112, a cap 113, a partition wall 114, a grouting injection pipe 214, 115, and a backflow prevention module 116. ), injection pipe (214) fixture (117), check unit (118), unit spring (119), connection socket (120), finishing cover (121), steel pipe extension pipe (122), and cutting groove (123). It is characterized by

The grouting steel pipe 110 is a circular pipe formed in a tunnel, and the grouting steel pipe 110 is formed to be inserted into a drilled hole.

The grouting discharge hole 111 is formed to discharge the grouting liquid injected into the grouting steel pipe 110 to the outside of the grouting steel pipe 110, and the grouting discharge hole 111 is the grouting steel pipe ( 110) It is characterized by forming a plurality of penetrations at regular intervals in the longitudinal direction on the circumferential surface.

The space 112 is characterized in that at least one space is installed along the outer side of the grouting steel pipe 110 and is formed to support the grouting steel pipe 110 in the drilled hole.

The cap 113 is formed to finish the end of the grouting steel pipe 110, and the cap 113 is formed at one end of the grouting steel pipe 110.

The partition wall 114 is formed to support the grouting injection pipes 214 and 115 in the inner space of the grouting steel pipe 110, and is characterized in that at least one partition wall 114 is installed.

The grouting injection pipes 214 and 115 are formed to supply grouting liquid into the interior of the grouting steel pipe 110. The grouting injection pipes 214 and 115 are installed in the center of the grouting steel pipe 110. It is characterized by being

The backflow prevention module 116 is formed to prevent backflow of the grouting liquid injected through the grouting injection pipes 214 and 115, and the backflow prevention module 116 is formed through the grouting injection pipe 214 ( 115) It is characterized in that one side is cut so that both sides of the cut grouting injection pipe (214) (115) can be connected.

The injection pipe 214 fixture 117 is formed so that the grouting steel pipe 110 cut on both sides can be inserted into both sides of the backflow prevention module 116, and the injection pipe 214 fixture 117 prevents backflow. It is characterized in that it is formed on both sides of the module 116.

When the check unit 118 is injected from one side through the grouting injection pipes 214 and 115, the grouting liquid is injected to the other side by pushing the unit spring 119, and when injection of the grouting liquid is completed, the grouting liquid is injected into the other side by the unit spring 119. It is returned to the initial position and is in close contact with the fixture 117 of the injection pipe 214 on one side to prevent the grouting liquid injected into the other side from flowing back in one direction. The check unit 118 is located inside the backflow prevention module 116. It is characterized by being formed by.

The unit spring 119 is formed to push the check unit 118, which has been moved to the other side of the backflow prevention module 116 by the injection pressure when injecting the grouting liquid, to its initial position when injection is completed. The unit spring 119 is characterized in that it is formed in close contact with the check unit 118 on one side of the backflow prevention module 116.

The connection socket 120 is characterized in that it is formed to connect the grouting steel pipe 110 on one side and the grouting steel pipe 110 on the other side by mutual screw coupling when the length of the grouting steel pipe 110 is extended according to construction. .

The finishing cover 121 supports one side of the grouting injection pipes 214 and 115 and is formed to prevent one side from leaking out of the grouting liquid from inside the grouting steel pipe 110. The finishing cover 121 is It is characterized by being joined to one side of the grouting steel pipe (110).

The steel pipe extension pipe 122 inserts the grouting steel pipe 110 deeply into the drilling hole for installation of a support material when inserting the grouting steel pipe 110 into the drilling hole, and can be separated and reused after inserting the grouting steel pipe 110, or can be reused by cutting grooves ( 123) is formed to be separated by cutting, and the steel pipe extension pipe 122 is characterized in that it extends from one end of the grouting steel pipe 110.

The cutting groove 123 is formed to cut and separate the steel pipe extension pipe 122 protruding outside the drilling hole. The cutting groove 123 is formed around one side of the steel pipe extension pipe 122.

The ISMI steel pipe 100 and the construction method using it consist of the following steps.

1) 13M drilling operation step to drill a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting the ISMI steel pipe (100)

2) Steel pipe insertion step for inserting the grouting steel pipe 110 into the drilling hole formed by the drilling operation step.

3) A caulking operation step to finish the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe 110 at the entrance of the perforation hole and the perforation hole.

4) Steel pipe extension pipe (122) separation step to separate the steel pipe extension pipe (122) from the grouting steel pipe (110) to prevent interference with the support material when reinstalling the support.

5) A grouting liquid injection step in which the grouting liquid is injected into the grouting steel pipe 110 to fill the inside of the grouting steel pipe 110, and then flows out to the outside to fill the drilled hole and the inside of the grouting steel pipe 110.

6) Support re-installation step of installing support materials on the inside of the tunnel after the grouting fluid injection step.

The ISMI steel pipe 100 and the construction method using it consist of the following steps.

1) 13M drilling operation step to drill a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting the ISMI steel pipe (100)

2) Steel pipe insertion step for inserting the grouting steel pipe 110 into the drilling hole formed by the drilling operation step.

3) A caulking operation step to finish the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe 110 at the entrance of the perforation hole and the perforation hole.

4) A grouting liquid injection step in which the grouting liquid is injected into the grouting steel pipe 110 to fill the inside of the grouting steel pipe 110, and then flows out to the outside to fill the perforated hole and the inside of the grouting steel pipe 110.

5) Steel pipe extension pipe cutting step to separate the steel pipe extension pipe from the grouting steel pipe after grouting fluid injection.

6) Support re-installation step to install support material after cutting the steel pipe extension pipe

The drawings and descriptions in the present invention are intended to show the construction state for explaining the present invention, and the configuration conditions and configuration form may be changed within the scope of the present invention depending on the work environment or working conditions of the site.

Figure 4 is a diagram showing the drilling hole heating unit 200, which is another embodiment of the present invention, and Figure 5 is a detailed view of Figure 4.

As shown in the drawing, the drilling hole heating unit 200 is further included in the ISMI steel pipe 100 of the present invention, and the drilling hole heating unit 200 provides hot air inside the drilling hole to be injected into the drilling hole. It is characterized by increasing the curing speed of the grouting liquid.

The drilling hole heating unit 200 includes a seating opening and closing plate 210, an opening and closing hinge 211, a plate fastening bolt 212, a hot air blower 213, an injection pipe 214, a pressure regulator 215, a connecting rod 216, It is characterized by including a detachable member 217, a tube holder 218, an injection tube 219, an injection hole 220, and a temperature sensor 221.

The seating opening/closing plate 210 is formed so that the hot air blower 213 can be seated, and the seating opening/closing plate 210 is fixed to one side of the entrance to the drilling hole so as to be openable and closed.

The opening and closing hinge 211 is formed so that one side of the seating opening and closing plate 210 is fixed to one side of the entrance to the drilling hole, and the other side can be opened and closed by rotation. The opening and closing hinge 211 is formed by the seating opening and closing plate 210 It is characterized by being formed on the central side.

The plate fastening bolt 212 is formed to secure the seating opening and closing plate 210 to one side of the entrance to the drilling hole.

The hot air blower 213 is formed to generate warm air to be provided to the injection tube 219 through the injection pipe 214 and the pressure regulator 215, and the hot air blower 213 is seated on the seating opening and closing plate 210. It is characterized by being

The injection pipe 214 is formed to provide warm air generated by the hot air blower 213 to the injection tube 219. One side of the injection pipe 214 is connected to one side of the hot air blower 213, and the other side is detachable. It is characterized by being coupled to the member 217.

The pressure regulator 215 is formed to regulate the pressure of warm air to be provided to the injection tube 219, and the pressure regulator 215 is formed on one side of the injection tube 214.

The connecting stand 216 has a detachable member 217 formed on one side to support one side of the injection tube 214 and one side of the injection tube 219, and is formed on the other side so that the injection tube 219 can be connected. (216) is characterized in that it is formed on one side of the outer circumference of the grouting steel pipe (110).

The detachable member 217 is formed so that the injection pipe 214 for injecting warm air can be detached, and the detachable member 217 is formed on one side of the connection stand 216.

The tube fixture 218 is formed to support the other side of the injection tube 219 coupled to one side of the connecting pole 216, and the tube fixture 218 is formed on the other side of the outer circumference of the grouting steel pipe 110. Do it as

The injection tube 219 is formed to move the warm air provided from the injection pipe 214 to the inner surface of the drilling hole, and one side of the injection tube 219 is connected to the connection stand 216. , The other side is connected to the tube fixture 218.

The injection hole 220 is formed to spray warm air provided from the injection tube 214 toward the inner surface of the perforated hole, and a plurality of injection holes 220 are formed on the injection tube 219.

The temperature sensor 221 is formed to detect the temperature of the inner surface of the drilling hole and provide the detected information to the hot air blower 213 so that the hot air blower 213 can be driven and stopped according to the temperature of the inner surface of the drilling hole. , the temperature sensor 221 is characterized in that it is formed on one side of the tube fixture 218.

Figure 6 is a diagram showing the horizontal maintenance insertion part 300, which is another embodiment of the present invention, and Figure 7 is a detailed view of Figure 6.

As shown in the drawing, the horizontal maintenance insertion portion 300 is further included in the ISMI steel pipe 100 of the present invention, and the horizontal maintenance insertion portion 300 includes a grouting steel pipe 110 inserted into the drilling hole. It is characterized in that it can be inserted while maintaining level with the drilling hole.

The horizontal maintenance insertion part 300 includes a first fixing plate 310, a first plate protection pad 311, a first plate fixing bolt 312, a first fixing hinge 313, and a first origin member 314. , first control bar (315), first cylinder fixer (316), first control cylinder (317), first cylinder hinge (318), first bar variable hinge (319), first origin sensor (320), Second fixing plate (330), second plate protection pad (331), second plate fixing bolt (332), second fixing hinge (333), second origin member (334), second adjustment bar (335), 2nd cylinder fixer (336), 2nd control cylinder (337), 2nd cylinder hinge (338), 2nd variable bar hinge (339), 2nd origin sensor (340), entry plate (350), entry end (351) and a steel pipe hole (352).

The first mount fixing plate 310 is formed to support one side of the variable first adjustment bar 315, and the first mount fixing plate 310 is provided with a first plate fixing bolt ( 312) is characterized in that it is fixedly formed.

The first plate protection pad 311 is formed to attenuate the vibration applied to the first mount and fixing plate 310 when the first mount and fixing plate 310 attached to the upper side of the entrance side of the drilling hole is closely fixed. The first plate protection pad 311 is formed on one side of the first fixing plate 310.

The first plate fixing bolt 312 is formed to fix the first fixing plate 310 to the upper side of the drill hole entrance side, and the first plate fixing bolt 312 is formed in a screw fastening form. Do it as

The first fixed hinge 313 is formed so that one side of the first adjustment bar 315 can be coupled and rotated. The first fixed hinge 313 is formed on one side of the first holding plate 310. It is characterized by

The first origin member 314 is formed so that the first origin sensor 320 detects the upper horizontality of the drilling hole, and the first origin member 314 is formed on the upper side of the entrance to the drilling hole. do.

The first control bar 315 is formed to adjust the level by pushing or pulling the entry plate 350 when the first control cylinder 317 is driven. One side of the first control bar 315 is It is connected to the first fixed hinge 313, and the other side is connected to the first variable bar hinge 319.

The first cylinder holder 316 is formed so that the first control cylinder 317 can be seated, and the first cylinder holder 316 is formed on one side of the first holding plate 310.

The first control cylinder 317 is formed to push or pull the first control bar 315, and the first control cylinder 317 is seated on the first cylinder holder 316.

The first cylinder hinge 318 rotates when the cylinder axis of the first control cylinder 317 and the first control bar 315 are connected and the first control cylinder 317 is driven. It is formed to push or pull the first adjustment bar 315, and the first cylinder hinge 318 is formed so that the cylinder axis of the first adjustment cylinder 317 can be connected to the center of the first adjustment bar 315. It is characterized by being

The first variable bar hinge 319 is formed so that the other side of the first control bar 315 can be connected, and the first variable bar hinge 319 is formed on one upper side of the entry plate 350. Do it as

The first origin sensor 320 is formed to detect the first origin member 314 and provide the detected information to the first control cylinder 317. The first origin sensor 320 is an entry plate. (350) It is characterized in that it is formed on one side of the entry stage 351, which is formed on the other side of the upper part.

The second fixing plate 330 is formed to support one side of the variable second adjustment bar 335, and the second fixing plate 330 is provided with a second plate fixing bolt ( It is characterized by being fixedly formed by 332).

The second plate protection pad 331 is formed to attenuate vibration applied to the second fixing plate 330 when the second fixing plate 330 attached to the lower side of the entrance to the drilling hole is closely fixed. The second plate protection pad 331 is formed on one side of the second fixing plate 330.

The second plate fixing bolt 332 is formed to fix the second fixing plate 330 to the lower side of the drill hole entrance side. The second plate fixing bolt 332 is formed in a screw fastening form. Do it as

The second fixing hinge 333 is formed so that one side of the second adjustment bar 335 can be coupled and rotated. The second fixing hinge 333 is formed on one side of the second fixing plate 330. It is characterized by

The second origin member 334 is formed so that the second origin sensor 340 detects the upper horizontality of the drilling hole, and the second origin member 334 is formed on the lower side of the entrance to the drilling hole. do.

The second control bar 335 is formed to adjust the level by pushing or pulling the entry plate 350 when the second control cylinder 337 is driven. One side of the second control bar 335 is It is connected to the second fixed hinge 333, and the other side is connected to the second variable bar hinge 339.

The second cylinder holder 336 is formed so that the second control cylinder 337 can be seated, and the second cylinder holder 336 is formed on one side of the second holding plate 330.

The second control cylinder 337 is formed to push or pull the second control bar 335, and the second control cylinder 337 is seated on the second cylinder fixer 336.

The second cylinder hinge 338 rotates when the cylinder axis of the second control cylinder 337 and the second control bar 335 are connected and the second control cylinder 337 is driven. It is formed to push or pull the second adjustment bar 335, and the second cylinder hinge 338 is formed so that the cylinder axis of the second adjustment cylinder 337 can be connected to the center of the second adjustment bar 335. It is characterized by being

The second variable bar hinge 339 is formed so that the other side of the second control bar 335 can be connected, and the second variable bar hinge 339 is formed on one side of the lower part of the entry plate 350. Do it as

The second origin sensor 340 is formed to detect the second origin member 334 and provide the detected information to the second control cylinder 337. The second origin sensor 340 is an entry plate. (350) It is characterized by being formed on one side of the entry stage 351, which is formed on the other side of the lower part.

The entry plate 350 is horizontal with the drilling hole when the first control cylinder 317 and the second control cylinder 337 are driven, so that the grouting steel pipe 110 is inserted into the drilling hole. It is formed to support, and the entry plate 350 is characterized in that one upper side is connected by a first adjustment bar 315 and one lower side is connected by a second adjustment bar 335.

The entry end 351 is formed to support the grouting steel pipe 110 entering the entry plate 350, and the entry end 351 is formed on both sides of the entry plate 350. do.

The steel pipe hole 352 is formed so that the grouting steel pipe 110 can move through it, and the steel pipe hole 352 is formed in the center of the entry plate 350.

Figure 8 is a diagram showing the mixing fixing unit 400, which is another embodiment of the present invention, and Figure 9 is a detailed view of Figure 8.

As shown in the drawing, the mixing fixing part 400 is further included in the ISMI steel pipe 100 of the present invention, and the mixing fixing part 400 is injected by mixing the grouting liquid injected into the drilling hole. It is designed to remove air from the grouting liquid and to increase the adhesion between the drilled hole and the grouting steel pipe (110) when the grouting liquid hardens.

The mixed fixing part 400 includes a metal fixing member 410, a member bolt 411, a binding magnetic 412, a rotating support plate 413, a magnetic lever 414, a rotating groove 415, and a rotating bearing 416. , a rotation motor 417, a rotating plate 418, a fixing protrusion 419, a fastening magnetic 420, a driving lever 421, and a mixing fixing bar 422.

The metal fixing member 410 is formed to be detachable by combining a binding magnet 412. The metal fixing member 410 is fixed by member bolts 411 on the upper and lower sides of the entrance to the drilling hole. It is characterized by

The member bolt 411 is formed to secure the metal fixing member 410 to the entrance side of the drilling hole. The member bolt 411 is formed to penetrate the metal fixing member 410.

The binding magnetic 412 is formed to be attachable to and detachable from the metal fixing member 410 by magnetism. The binding magnetic 412 is characterized in that it is formed as a circular member.

The rotation support plate 413 is formed to support the rotating rotation plate 418, and the rotation support plate 413 is formed on one side of the coupling magnetic 412.

The magnetic lever 414 is formed to drive the magnetism of the coupling magnet 412, and the magnetic lever 414 is formed to drive each coupling magnet 412 to one side and the other side of the rotating plate 418. It is characterized by

The rotation groove 415 is formed so that the rotation plate 418 can be coupled and rotated, and the rotation groove 415 is formed on one side of the rotation plate 418.

The rotation bearing 416 is formed so that the rotation plate 418 can rotate based on the rotation support plate 413, and the rotation bearing 416 is coupled to the inside of the rotation groove 415.

The rotation motor 417 is formed to generate a driving force to rotate the rotation plate 418, and the rotation motor 417 is fixed to the other side of the rotation support plate 413.

The rotating plate 418 is formed so that one side is in close contact with the rotating bearing 416 and rotates without friction on the rotating support plate 413 to rotate the fixing protrusion 419. The rotating plate 418 is formed by a rotating motor 417. It is characterized in that it is connected to the motor shaft of.

The fixing protrusion 419 is formed so that the fastening magnetic 420 can be coupled to it, and the fixing protrusion 419 is formed on one side of the rotating plate 418.

The fastening magnetic 420 is formed so that the mixed fixing bar 422 and the fixing protrusion 419 can be coupled to each other by magnetism. The fastening magnetic 420 is formed by combining the fixing protrusion 419 and the mixed fixing bar 422. It is characterized by the formation of a bond between them.

The driving lever 421 is formed to drive the magnetism of the fastening magnetic 420, and the driving lever 421 is formed on one side of the fastening magnetic 420.

The mixing fixing bar 422 rotates between the drilled hole and the grouting steel pipe 110 when the rotating plate 418 rotates, and is coupled to the fastening magnetic 420 by magnetism, so that it is connected to the fastening magnetic 420 when the grouting liquid hardens. It is characterized in that it is formed to be detachable.

Figure 10 is a diagram showing a steel pipe support 500, which is another embodiment of the present invention, and Figure 11 is a detailed view of Figure 10.

As shown in the drawing, the steel pipe support 500 is further included in the ISMI steel pipe 100 of the present invention, and the steel pipe support 500 is grouted so that the grouting steel pipe 110 can be fixed and supported on the drilled hole. It is characterized in that it is formed by combining with the steel pipe 110.

The steel pipe support portion 500 includes a pipe coupling flange 510, a connector member 511, a rotary connector 512, a connector groove 513, a rotary hinge 514, an adjustable rotary bar 515, and a plate hinge 516. , a contact plate 517, a contact tube 518, and a hardened capsule 519.

The pipe coupling flange 510 is formed to support the contact plate 517 in close contact with the drilled hole when the rotary bar 515 rotates. The pipe coupling flange 510 is provided in plural pieces on the grouting steel pipe 110. It is characterized by being formed by bonding.

The connector member 511 is formed to support the rotation of the rotatable bar 515, and is characterized in that a plurality of connector members 511 are formed at a predetermined angle around the pipe coupling flange 510.

The rotation connector 512 is formed to rotate the rotation variable bar 515 by inserting a rotation means into the connector groove 513 and rotating it. The rotation connector 512 is formed on one side of the connector member 511. It is characterized by

The connector groove 513 is formed so that a rotation means can be inserted, and the connector groove 513 is formed on one side of the rotation connector 512.

The rotation hinge 514 is formed so that the rotation variable bar 515 can be rotated based on the connector member 511. One side of the rotation hinge 514 is connected to the rotation connector 512, and the other side is connected to the rotation connector 512. It is characterized by being connected to one side of the rotatable bar 515 through the connector member 511.

The adjustable rotation bar 515 is formed to rotate the contact plate 517 from the pipe coupling flange 510 to the inner surface of the drilling hole. One side of the adjustable rotation bar 515 is connected to the rotating hinge 514. , The other side is connected to the contact plate 517 by a plate hinge 516.

The plate hinge 516 is formed so that the contact plate 517 can be rotated based on the rotation variable bar 515 when the rotation variable bar 515 is rotated. The plate hinge 516 is a contact plate ( 517) It is characterized by being formed in the center.

The contact plate 517 is formed by a plate hinge 516 on one side of the rotatable bar 515, and is formed to come into close contact with the inner surface of the drilled hole when the rotatable bar 515 rotates.

The adhesion tube 518 is formed to burst due to the pressure of the adhesion plate 517 coming into close contact with the inner surface of the perforated hole. The adhesion tube 518 is formed on one side of the adhesion plate 517. It is characterized by being

The hardened capsule 519 is formed to increase the adhesion between the inner surface of the perforated hole and the contact plate 517 when the adhesion tube 518 bursts. The cured capsule 519 is formed inside the adhesion tube 518. It is characterized by being built in.

The above-described embodiments are for illustrative purposes, and those skilled in the art will recognize that the above-described embodiments can be easily modified into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, the above-described embodiments should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope sought to be protected through this specification is indicated by the patent claims described later rather than the detailed description above, and should be interpreted to include the meaning and scope of the claims and all changes or modified forms derived from the equivalent concept. .

100: ISMI steel pipe
110: Grouting steel pipe 111: Grouting blowout hole
112: space 113: cap
114: Bulkhead 115: Grouting injection pipe
116: backflow prevention module 117: injection pipe fixture
118: check unit 119: unit spring
120: Connection socket 121: Finishing cover
122: Steel pipe extension pipe 123: Cutting groove
200: perforated hole heating unit 210: seating opening and closing plate
211: opening/closing hinge 212: plate fastening bolt
213: heater 214: injection pipe
215: pressure regulator 216: connecting rod
217: Detachable member 218: Tube fixture
219: injection tube 220: injection hole
221: Temperature sensor
300: Horizontal maintenance insertion part 310: First fixing plate
311: 1st plate protection pad 312: 1st plate fixing bolt
313: first fixed hinge 314: first origin member
315: 1st adjustment bar 316: 1st cylinder fixing bar
317: first control cylinder 318: first cylinder hinge
319: first variable hinge 320: first origin sensor
330: Second fixing plate 331: Second plate protection pad
332: 2nd plate fixing bolt 333: 2nd fixing hinge
334: second origin member 335: second adjustment bar
336: 2nd cylinder fixer 337: 2nd control cylinder
338: 2nd cylinder hinge 339: 2nd bar variable hinge
340: Second origin sensor 350: Entry plate
351: Entry end 352: Steel pipe hole
400: Mixed fixing member 410: Metal fixing member
411: member bolt 412: binding magnetic
413: Rotation support plate 414: Magnetic lever
415: rotation groove 416: rotation bearing
417: rotation motor 418: rotation plate
419: fixing protrusion 420: fastening magnetic
421: Driving lever 422: Mixing fixing bar
500: Steel pipe support 510: Pipe coupling flange
511: Connector member 512: Rotating connector
513: Connector groove 514: Rotation hinge
515: Adjustable rotation bar 516: Plate hinge
517: Adhesion plate 518: Adhesion tube
519: Hardened capsule

Claims (3)

In the ISMI steel pipe that penetrates into the ground and allows grouting to reinforce the ground,
The ISMI steel pipe is,
A grouting steel pipe formed as a circular pipe to be inserted into a drilling hole formed in the tunnel,
A plurality of grouting discharge holes formed through the circumferential surface of the grouting steel pipe at regular intervals in the longitudinal direction to discharge the grouting liquid injected into the grouting steel pipe to the outside of the grouting steel pipe;
At least one space installed along the outer side of the grouting steel pipe and formed to support the grouting steel pipe in the drilled hole;
A cap formed on one end of the grouting steel pipe to finish the end of the grouting steel pipe,
At least one partition installed in the inner space of the grouting steel pipe to support the grouting injection pipe,
A grouting injection pipe installed in the center of the grouting steel pipe to supply grouting liquid into the interior of the grouting steel pipe,
In order to prevent backflow of the grouting liquid injected through the grouting injection pipe, one side of the grouting injection pipe is cut so that both sides of the cut grouting injection pipe can be connected;
Injection pipe fixtures formed on both sides of the backflow prevention module so that grouting steel pipes cut on both sides can be inserted into both sides of the backflow prevention module,
When injecting from one side through the grouting injection pipe, the grouting liquid is injected to the other side by pushing the unit spring. When the grouting liquid injection is completed, the unit spring returns to the initial position and is in close contact with the injection pipe fixture on one side, and the grouting liquid is injected to the other side. A check unit formed inside the backflow prevention module to prevent backflow in one direction,
A unit spring formed in close contact with the check unit on one side of the backflow prevention module to push the check unit, which has been moved to the other side of the backflow prevention module by the injection pressure when injecting the grouting liquid, to the initial position when the injection is completed;
When the length of the grouting steel pipe is extended according to construction, a connection socket is formed to connect the grouting steel pipe on one side and the grouting steel pipe on the other side by mutual screw connection,
A finishing cover formed on one side of the grouting steel pipe to support one side of the grouting injection pipe and prevent one side from leaking out of the grouting liquid inside the grouting steel pipe,
When inserting a grouting steel pipe into a drilling hole, the grouting steel pipe is deeply inserted into the drilling hole to install a support material, and after inserting the grouting steel pipe, it is separated and reused, or a steel pipe extension pipe is formed to extend at one end of the grouting steel pipe to be separated by cutting a cutting groove,
It includes a cutting groove formed around one side of the steel pipe extension pipe to cut and separate the steel pipe extension pipe protruding outside the drilling hole,

The ISMI steel pipe and construction method using it are,
A 13M drilling operation step to drill a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting an ISMI steel pipe,
A steel pipe insertion step for inserting a grouting steel pipe into the drilling hole formed by the drilling operation step,
A caulking operation step for finishing the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe at the entrance of the perforation hole and the perforation hole;
A steel pipe extension pipe separation step to separate the steel pipe extension pipe from the grouting steel pipe to prevent interference with the support material when reinstalling the support,
A grouting liquid injection step of injecting the grouting liquid into the grouting steel pipe so that the grouting liquid fills the inside of the grouting steel pipe, and flows out to the outside to fill the perforated hole and the inside of the grouting steel pipe;
After the grouting liquid injection step, it consists of a support re-installation step in which support materials are installed inside the tunnel.

The ISMI steel pipe and construction method using it are,
A 13M drilling operation step to drill a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting an ISMI steel pipe,
A steel pipe insertion step for inserting a grouting steel pipe into the drilling hole formed by the drilling operation step,
A caulking operation step for finishing the entrance of the perforation hole by injecting caulking liquid between the grouting steel pipe at the entrance of the perforation hole and the perforation hole;
A grouting liquid injection step of injecting the grouting liquid into the grouting steel pipe so that the grouting liquid fills the inside of the grouting steel pipe, and flows out to the outside to fill the perforated hole and the inside of the grouting steel pipe;
ISMI steel pipe characterized in that it consists of a support re-installation step in which support materials are installed on the inside of the tunnel after the grouting liquid injection step.
delete According to paragraph 1,
The ISMI steel pipe is,
It further includes a perforation hole heating unit to provide hot air inside the perforation hole to increase the curing speed of the grouting liquid injected into the perforation hole,
The perforated hole heating unit,
A seating opening and closing plate that is fixed and formed to be openable and closed on one side of the entrance to the drilling hole so that the hot air blower can be seated,
One side of the seating opening and closing plate is fixed to one side of the entrance to the drilling hole, and the other side is formed at the center of the seating opening and closing plate so that it can be opened and closed by rotation;
A plate fastening bolt formed to secure the seating opening and closing plate to one side of the entrance to the drilling hole,
A hot air blower mounted on the seat opening and closing plate to generate warm air to be provided to the injection tube through the injection pipe and pressure regulator;
An injection tube with one side connected to one side of the heater and the other side connected to a detachable member to provide warm air generated from the heater to the injection tube,
A pressure regulator formed on one side of the injection tube to control the pressure of the warm air to be provided to the injection tube,
A detachable member is formed on one side to support one side of the injection pipe and one side of the injection tube, and a connecting bar is formed on one side of the outer circumference of the grouting steel pipe so that the injection tube can be connected to the other side,
A detachable member formed on one side of the connection bar so that the injection pipe for injecting warm air can be detached,
A tube fixture formed on the other side of the outer circumference of the grouting steel pipe to support the other side of the injection tube coupled to one side of the connecting rod,
An injection tube with one side connected to a connecting rod and the other side connected to a tube fixture so that the warm air for spraying the warm air provided from the injection pipe to the inner side of the drilling hole can be moved;
a plurality of injection holes formed on the injection tube to spray warm air provided from the injection pipe toward the inner surface of the perforation hole;
ISMI characterized in that it includes a temperature sensor formed on one side of the tube fixture to detect the temperature of the inner surface of the drilling hole and provide the detected information to the heater so that the heater can be driven and stopped according to the temperature of the inner surface of the drilled hole. Steel pipe.