KR102604499B1 - Multi Simultaneous Injection steel pipe and construction method using the same - Google Patents

Abstract

The present invention applies a backflow prevention module to prevent backflow of the grouting agent, and makes the grouting injection pipes made of Excel hose and PE hose to facilitate cutting or finishing work. The grouting injection pipes can be manufactured and applied in quantities of 2 to 4. It is possible to apply a partition wall at more than 2 points, and by applying a caulking packer, caulking work can be easily done to shorten construction time. In order to improve constructability, a steel pipe extension pipe is applied to prevent steel pipe interference when installing a support system. This is about MSI steel pipes and construction methods using them that can be improved.

Description

MSI steel pipe and construction method using the same {Multi Simultaneous Injection steel pipe and construction method using the same}

The present invention relates to MSI 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. In addition, it is possible to manufacture and apply grouting injection pipes in quantities of 2 to 4, and the partition wall can be applied to 2 or more points. By applying a caulking packer, caulking work can be easily performed, shortening construction time, and improving constructability. This is about MSI steel pipes and construction methods using them, which improve steel pipe interference during support installation by applying steel pipe extension pipes for improvement.

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 facilitate caulking work by ensuring that the grouting steel pipe is fixed on the drilled hole using a caulking packer.

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 MSI steel pipe and a construction method using the same that penetrate into the inside of the ground and allow grouting to reinforce the ground.

In one embodiment, the MSI 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 at 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 each to supply grouting liquid into the interior of the grouting steel pipe. Grouting injection pipes are made of different lengths and are formed to be installed in multiple numbers, and one side of the grouting injection pipe is cut to prevent the grouting liquid injected through the grouting injection pipe from flowing back after injection so that both sides of the cut grouting injection pipe can be connected. A backflow prevention module is formed, an injection pipe fixture is 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, and the grouting liquid is pushed by pushing the unit spring when injecting from one side through the grouting injection pipe. This is injected into the other side, and upon completion of grouting fluid injection, it returns to its initial position by the unit spring and adheres closely to the injection pipe fixture on one side, forming a check inside the backflow prevention module to prevent the grouting fluid injected into the other side from flowing back in one direction. The unit, a unit spring that is formed in close contact with the check unit on one side of the backflow prevention module to push the check unit to its initial position when injection is completed, which has been moved to the other side of the backflow prevention module by the injection pressure when grouting fluid is injected, and Accordingly, when the length of the grouting steel pipe is extended, 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, and one side of the plurality of grouting injection pipes is supported, and the grouting liquid is discharged from the inside of the grouting steel pipe. A finishing cover is formed on one side of the grouting steel pipe to prevent one side from leaking, and is installed on the outside of the rear end of the grouting steel pipe, allowing caulking to be injected from either the outside or the inside, thereby creating a gap between the grouting steel pipe and the drilled hole. A caulking packer is formed to seal the grouting steel pipe, and the grouting steel pipe is deeply inserted into the drilling hole to install 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 steel pipe can be separated by cutting the cutting groove. It includes a steel pipe extension pipe extending at one end, 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 MSI steel pipe and the construction method using the same include the MSI 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 a drilling hole entrance side A caulking operation step to fix the grouting steel pipe in the drilled hole by injecting caulking liquid into the caulking packer installed around the grouting steel pipe, and a steel pipe extension pipe to separate the steel pipe extension pipe from the grouting steel pipe to prevent interference with the support material when installing the support material. A separation step, a grouting fluid injection step in which the grouting fluid is injected into the grouting steel pipe to fill the inside of the grouting steel pipe, and then flow out to the outside to fill the drilled hole and the inside of the grouting steel pipe, and the inside of the tunnel after the grouting fluid injection step. It consists of a support material installation step of installing a support material, and the MSI steel pipe and construction method using it include a 13M drilling operation step for drilling a 13M drilling hole at the end of the tunnel to form a drilling hole for inserting the MSI 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 to the drilling hole by injecting caulking liquid between the grouting steel pipe at the entrance of the drilling hole and the drilling hole, 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 the steel pipe to prevent interference with the support material when excavating the support material installation location. It is characterized in that it consists of a support reinstallation step for cutting the extension pipe.

In another embodiment, the MSI steel pipe mixes the grouting liquid injected into the drilling hole to remove air from the injected grouting liquid, and is used to increase the adhesion between the drilling hole and the grouting steel pipe when the grouting liquid hardens. It further includes a mixing fixing part, wherein the mixing fixing part includes a metal fixing member fixed by member bolts to the upper and lower sides of the drilling hole entrance side so that the binding magnetic is coupled and detached, and the metal fixing member is fixed to the drilling hole entrance side. A member bolt is formed through the metal fixing member to fix it to the surface, a binding magnet is formed as a circular member so that it can be magnetically attached and detached to the metal fixing member, and a binding magnet is formed on one side to support the rotating rotating plate. A rotating support plate, a magnetic lever formed to drive each binding magnet on one side and the other side of the rotating plate to drive the magnetism of the binding magnet, a rotating groove formed on one side of the rotating plate so that the rotating plate can be coupled and rotated, and a rotating plate. A rotation bearing is formed inside the rotation groove so that it can be rotated based on the rotation support plate, a rotation motor is fixed to the other side of the rotation support plate to generate a driving force to rotate the rotation plate, and one side is in close contact with the rotation bearing to form a rotation support plate. The rotating plate is connected to the motor shaft of the rotary motor to rotate the fixing protrusion by rotating without friction, the fixing protrusion formed on one side of the rotating plate so that the fastening magnet can be coupled, and the mixing fixing bar and the fixing protrusion can be combined by magnetism. A fastening magnet is formed in combination between the fixing protrusion and the mixed fixing bar, a driving lever is formed on one side of the fastening magnet to drive the magnetism of the fastening magnet, and when the rotary plate rotates, it rotates between the drilled hole and the grouting steel pipe, and is rotated by the magnetism. It is characterized by including a mixed fixing bar that is coupled to the fastening magnetic and can be detached from the fastening magnetic when the grouting liquid hardens.

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, it provides the effect of shortening construction time during caulking work to secure grouting steel pipes using a caulking packer.

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 MSI 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 view showing a mixing fixing 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 steel pipe support portion according to another embodiment of the present invention.
Figure 7 is a detailed view of Figure 6.
Figure 8 is a diagram showing a drilled hole heating unit according to another embodiment of the present invention.
Figure 9 is a detailed view of Figure 8.
Figure 10 is a view showing a horizontal maintenance insertion part, which is 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 MSI 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 This is a block diagram of the construction method for 1.

As shown in the drawing, the MSI steel pipe 100 penetrates into the ground and is grouted, thereby reinforcing the ground.

The MSI 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 414, 115, and a backflow prevention module 116. ), injection pipe (414) fixture (117), check unit (118), unit spring (119), connection socket (120), finishing cover (121), caulking packer (122), steel pipe extension pipe (123), cutting groove It is characterized by containing (124).

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 414 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 414 and 115 are formed to supply grouting liquid into the interior of the grouting steel pipe 110. The grouting injection pipes 414 and 115 are manufactured in different lengths and are installed in plural numbers. It is characterized by being formed as much as possible.

The backflow prevention module 116 is formed to prevent backflow of the grouting liquid injected through the grouting injection pipes 414 and 115, and the backflow prevention module 116 is formed through the grouting injection pipe 414 ( 115) It is characterized in that one side is cut so that both sides of the cut grouting injection pipe (414) (115) can be connected.

The injection pipe 414 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 414 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 414 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 414 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 plurality of grouting injection pipes 414 and 115 and is formed to block one side of the grouting liquid from flowing out from inside the grouting steel pipe 110. The finishing cover 121 ) is characterized in that it is formed by joining on one side of the grouting steel pipe (110).

The caulking packer 122 is installed on the outside of the rear end of the grouting steel pipe 110, and is formed to seal the gap between the grouting steel pipe 110 and the drilled hole by injecting caulking liquid from either the outside or the inside. It is characterized by being

The steel pipe extension pipe 123 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. After inserting the grouting steel pipe 110, it can be separated and reused, or it can be reused by cutting grooves ( 124) is cut and separated, and the steel pipe extension pipe 123 is characterized in that it extends from one end of the grouting steel pipe 110.

The cutting groove 124 is formed to cut and separate the steel pipe extension pipe 123 protruding outside the drilling hole. The cutting groove 124 is formed around one side of the steel pipe extension pipe 123.

The MSI 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 MSI 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 fix the grouting steel pipe (110) to the drilling hole by injecting caulking liquid into the caulking packer (122) installed around the grouting steel pipe (110) at the entrance to the drilling hole.

4) Steel pipe extension pipe (123) separation step to separate the steel pipe extension pipe (123) 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 MSI 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 MSI 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 mixing fixing 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 mixing fixing part 200 is further included in the MSI steel pipe 100 of the present invention, and the mixing fixing part 200 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 200 includes a metal fixing member 210, a member bolt 211, a binding magnetic 212, a rotating support plate 213, a magnetic lever 214, a rotating groove 215, and a rotating bearing 216. , a rotation motor 217, a rotating plate 218, a fixing protrusion 219, a fastening magnetic 220, a driving lever 221, and a mixing fixing bar 222.

The metal fixing member 210 is formed to be detachable by combining a binding magnet 212. The metal fixing member 210 is fixed to the upper and lower sides of the drilling hole entrance side by member bolts 211. It is characterized by

The member bolt 211 is formed to secure the metal fixing member 210 to the entrance side of the drilling hole. The member bolt 211 is formed to penetrate the metal fixing member 210.

The binding magnetic 212 is formed to be attachable to and detachable from the metal fixing member 210 by magnetism. The binding magnetic 212 is characterized in that it is formed as a circular member.

The rotation support plate 213 is formed to support the rotating rotation plate 218, and the rotation support plate 213 is formed on one side of the coupling magnetic 212.

The magnetic lever 214 is formed to drive the magnetism of the coupling magnet 212, and the magnetic lever 214 is formed to drive each coupling magnet 212 to one side and the other side of the rotating plate 218. It is characterized by

The rotation groove 215 is formed so that the rotation plate 218 can be coupled and rotated, and the rotation groove 215 is formed on one side of the rotation plate 218.

The rotation bearing 216 is formed so that the rotation plate 218 can rotate based on the rotation support plate 213, and the rotation bearing 216 is coupled to the inside of the rotation groove 215.

The rotation motor 217 is formed to generate a driving force to rotate the rotation plate 218, and the rotation motor 217 is fixed to the other side of the rotation support plate 213.

The rotating plate 218 is formed so that one side is in close contact with the rotating bearing 216 and rotates without friction on the rotating support plate 213 to rotate the fixing protrusion 219. The rotating plate 218 is formed by a rotating motor 217. It is characterized in that it is connected to the motor shaft of.

The fixing protrusion 219 is formed so that the fastening magnetic 220 can be coupled to it, and the fixing protrusion 219 is formed on one side of the rotating plate 218.

The fastening magnetic 220 is formed so that the mixed fixing bar 222 and the fixing protrusion 219 can be coupled to each other by magnetism. The fastening magnetic 220 is formed by combining the fixing protrusion 219 and the mixed fixing bar 222. It is characterized by the formation of a bond between them.

The driving lever 221 is formed to drive the magnetism of the fastening magnetic 220, and the driving lever 221 is formed on one side of the fastening magnetic 220.

The mixing fixing bar 222 rotates between the drilled hole and the grouting steel pipe 110 when the rotating plate 218 rotates, and is coupled to the fastening magnetic 220 by magnetism, so that it is connected to the fastening magnetic 220 when the grouting liquid hardens. It is characterized in that it is formed to be detachable.

Figure 6 is a diagram showing a steel pipe support 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 steel pipe support 300 is further included in the MSI steel pipe 100 of the present invention, and the steel pipe support 300 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 300 includes a pipe coupling flange 310, a connector member 311, a rotary connector 312, a connector groove 313, a rotary hinge 314, an adjustable rotary bar 315, and a plate hinge 316. , It is characterized in that it includes a contact plate (317), a contact tube (318), and a hardened capsule (319).

The pipe coupling flange 310 is formed to support the contact plate 317 in close contact with the drilled hole when the rotary bar 315 rotates. The pipe coupling flange 310 is provided in plural pieces on the grouting steel pipe 110. It is characterized by being formed by bonding.

The connector member 311 is formed to support the rotation of the rotatable bar 315, and is characterized in that a plurality of connector members 311 are formed at a predetermined angle around the pipe coupling flange 310.

The rotation connector 312 is formed to rotate the rotation variable bar 315 by inserting a rotation means into the connector groove 313 and rotating it. The rotation connector 312 is formed on one side of the connector member 311. It is characterized by

The connector groove 313 is formed so that a rotation means can be inserted, and the connector groove 313 is formed on one side of the rotation connector 312.

The rotation hinge 314 is formed so that the rotation variable bar 315 can be rotated based on the connector member 311. One side of the rotation hinge 314 is connected to the rotation connector 312, and the other side is connected to the rotation connector 312. It is characterized by being connected to one side of the rotatable bar 315 through the connector member 311.

The adjustable rotation bar 315 is formed to rotate the contact plate 317 from the pipe coupling flange 310 to the inner surface of the drilling hole. One side of the adjustable rotation bar 315 is connected to the rotating hinge 314. , The other side is connected to the contact plate 317 by a plate hinge 316.

The plate hinge 316 is formed so that the contact plate 317 can be rotated based on the rotation variable bar 315 when the rotation variable bar 315 is rotated. The plate hinge 316 is a contact plate ( 317) It is characterized by being formed in the center.

The contact plate 317 is formed by a plate hinge 316 on one side of the adjustable rotary bar 315, and is formed to come into close contact with the inner surface of the drilled hole when the adjustable rotary bar 315 rotates.

The adhesion tube 318 is formed to burst due to the pressure of the adhesion plate 317 coming into close contact with the inner surface of the perforated hole. The adhesion tube 318 is formed on one side of the adhesion plate 317. It is characterized by being

The hardened capsule 319 is formed to increase the adhesion between the inner surface of the perforated hole and the adhesive plate 317 when the adhesive tube 318 bursts. The hardened capsule 319 is formed inside the adhesive tube 318. It is characterized by being built in.

Figure 8 is a diagram showing the drilled hole heating 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 drilling hole heating unit 400 is further included in the MSI steel pipe 100 of the present invention, and the drilling hole heating unit 400 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 400 includes a seating opening and closing plate 410, an opening and closing hinge 411, a plate fastening bolt 412, a hot air blower 413, an injection pipe 414, a pressure regulator 415, a connecting rod 416, It is characterized by including a detachable member 417, a tube holder 418, an injection tube 419, an injection hole 420, and a temperature sensor 421.

The seating opening/closing plate 410 is formed so that the hot air blower 413 can be seated, and the seating opening/closing plate 410 is fixed to one side of the entrance to the drilling hole so as to be openable and closed.

The opening and closing hinge 411 is formed so that one side of the seating opening and closing plate 410 is fixed to one side of the entrance to the drilling hole and the other side can be opened and closed by rotation. It is characterized by being formed on the central side.

The plate fastening bolt 412 is formed to secure the seating opening/closing plate 410 to one side of the entrance to the drilling hole.

The hot air blower 413 is formed to generate warm air to be provided to the injection tube 419 through the injection pipe 414 and the pressure regulator 415, and the hot air blower 413 is seated on the seating opening and closing plate 410. It is characterized by being

The injection pipe 414 is formed to provide warm air generated by the hot air blower 413 to the injection tube 419. One side of the injection pipe 414 is connected to one side of the hot air blower 413, and the other side is detachable. It is characterized by being coupled to the member 417.

The pressure regulator 415 is formed to regulate the pressure of warm air to be provided to the injection tube 419, and the pressure regulator 415 is formed on one side of the injection tube 414.

The connecting stand 416 has a detachable member 417 formed on one side to support one side of the injection tube 414 and one side of the injection tube 419, and is formed on the other side so that the injection tube 419 can be connected. (416) is characterized in that it is formed on one side of the outer circumference of the grouting steel pipe (110).

The detachable member 417 is formed so that the injection pipe 414 for injecting warm air can be detached, and the detachable member 417 is formed on one side of the connecting stand 416.

The tube fixture 418 is formed to support the other side of the injection tube 419 coupled to one side of the connecting pole 416, and the tube fixture 418 is formed on the other side of the outer circumference of the grouting steel pipe 110. Do it as

The injection tube 419 is formed to move the warm air provided from the injection pipe 414 to the inner surface of the drilling hole, and one side of the injection tube 419 is connected to the connecting stand 416. , The other side is connected to the tube fixture 418.

The injection hole 420 is formed to spray warm air provided from the injection tube 414 toward the inner surface of the perforated hole, and a plurality of injection holes 420 are formed on the injection tube 419.

The temperature sensor 421 is formed to detect the temperature of the inner surface of the drilling hole and provide the detected information to the hot air blower 413 so that the hot air blower 413 can be driven and stopped according to the temperature of the inner surface of the drilling hole. , the temperature sensor 421 is characterized in that it is formed on one side of the tube fixture 418.

Figure 10 is a diagram showing the horizontal maintenance insertion part 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 horizontal maintenance insertion portion 500 is further included in the MSI steel pipe 100 of the present invention, and the horizontal maintenance insertion portion 500 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 500 includes a first fixing plate 510, a first plate protection pad 511, a first plate fixing bolt 512, a first fixing hinge 513, and a first origin member 514. , first control bar (515), first cylinder fixer (516), first control cylinder (517), first cylinder hinge (518), first bar variable hinge (519), first origin sensor (520), Second fixing plate (530), second plate protection pad (531), second plate fixing bolt (532), second fixing hinge (533), second origin member (534), second adjustment bar (535), 2nd cylinder fixer (536), 2nd control cylinder (537), 2nd cylinder hinge (538), 2nd variable bar hinge (539), 2nd origin sensor (540), entry plate (550), entry end (551) and a steel pipe hole (552).

The first mount fixing plate 510 is formed to support one side of the variable first adjustment bar 515, and the first mount fixing plate 510 is provided with a first plate fixing bolt ( 512) is characterized in that it is fixedly formed.

The first plate protection pad 511 is formed to attenuate vibration applied to the first mount and fixing plate 510 when the first mount and fixing plate 510 attached to the upper side of the entrance side of the drilling hole is closely fixed. The first plate protection pad 511 is formed on one side of the first fixing plate 510.

The first plate fixing bolt 512 is formed to secure the first fixing plate 510 to the upper side of the drill hole entrance side, and the first plate fixing bolt 512 is formed in a screw fastening form. Do it as

The first fixed hinge 513 is formed so that one side of the first adjustment bar 515 can be coupled and rotated, and the first fixed hinge 513 is formed on one side of the first holding plate 510. It is characterized by

The first origin member 514 is formed so that the first origin sensor 520 detects the upper horizontality of the drilling hole, and the first origin member 514 is formed on the upper side of the entrance to the drilling hole. do.

The first control bar 515 is formed to adjust the level by pushing or pulling the entry plate 550 when the first control cylinder 517 is driven. One side of the first control bar 515 is It is connected to the first fixed hinge 513, and the other side is connected to the first variable bar hinge 519.

The first cylinder holder 516 is formed so that the first control cylinder 517 can be seated, and the first cylinder holder 516 is formed on one side of the first holding plate 510.

The first control cylinder 517 is formed to push or pull the first control bar 515, and the first control cylinder 517 is seated on the first cylinder holder 516.

The first cylinder hinge 518 causes the first control bar 515 to rotate when the cylinder axis of the first control cylinder 517 and the first control bar 515 are connected to the first control cylinder 517. It is formed to push or pull the first adjustment bar 515, and the first cylinder hinge 518 is formed so that the cylinder axis of the first adjustment cylinder 517 can be connected to the center of the first adjustment bar 515. It is characterized by being

The first variable bar hinge 519 is formed so that the other side of the first control bar 515 can be connected, and the first variable bar hinge 519 is formed on one side of the upper part of the entry plate 550. Do it as

The first origin sensor 520 is formed to detect the first origin member 514 and provide the detected information to the first control cylinder 517. The first origin sensor 520 is an entry plate. (550) It is characterized by being formed on one side of the entry end 551, which is formed on the other side of the upper part.

The second fixing plate 530 is formed to support one side of the variable second adjustment bar 535, and the second fixing plate 530 is equipped with a second plate fixing bolt ( 532) is characterized in that it is fixedly formed.

The second plate protection pad 531 is formed to attenuate vibration applied to the second fixing plate 530 when the second fixing plate 530 attached to the lower side of the entrance to the drilling hole is closely fixed. The second plate protection pad 531 is formed on one side of the second fixing plate 530.

The second plate fixing bolt 532 is formed to fix the second fixing plate 530 to the lower side of the drill hole entrance side, and the second plate fixing bolt 532 is formed in a screw fastening form. Do it as

The second fixed hinge 533 is formed so that one side of the second adjustment bar 535 can be coupled and rotated. The second fixed hinge 533 is formed on one side of the second holding plate 530. It is characterized by

The second origin member 534 is formed so that the second origin sensor 540 detects the upper horizontality of the drilling hole, and the second origin member 534 is formed on the lower side of the entrance to the drilling hole. do.

The second control bar 535 is formed to adjust the level by pushing or pulling the entry plate 550 when the second control cylinder 537 is driven. One side of the second control bar 535 is It is connected to the second fixed hinge 533, and the other side is connected to the second variable bar hinge 539.

The second cylinder holder 536 is formed so that the second control cylinder 537 can be seated, and the second cylinder holder 536 is formed on one side of the second holding plate 530.

The second control cylinder 537 is formed to push or pull the second control bar 535, and the second control cylinder 537 is seated on the second cylinder holder 536.

The second cylinder hinge 538 rotates when the cylinder axis of the second control cylinder 537 and the second control bar 535 are connected and the second control cylinder 537 is driven. It is formed to push or pull the second adjustment bar 535, and the second cylinder hinge 538 is formed so that the cylinder axis of the second adjustment cylinder 537 can be connected to the center of the second adjustment bar 535. It is characterized by being

The second variable bar hinge 539 is formed so that the other side of the second control bar 535 can be connected, and the second variable bar hinge 539 is formed on one side of the lower part of the entry plate 550. Do it as

The second origin sensor 540 is formed to detect the second origin member 534 and provide the detected information to the second control cylinder 537. The second origin sensor 540 is an entry plate. (550) It is characterized by being formed on one side of the entry end 551, which is formed on the other side of the lower part.

The entry plate 550 is horizontal with the drilling hole when the first control cylinder 517 and the second control cylinder 537 are driven, so that the grouting steel pipe 110 is inserted into the drilling hole. It is formed to support, and the entry plate 550 is characterized in that one upper side is connected by a first adjustment bar 515 and one lower side is connected by a second adjustment bar 535.

The entry end 551 is formed to support the grouting steel pipe 110 entering the entry plate 550, and the entry end 551 is formed on both sides of the entry plate 550. do.

The steel pipe hole 552 is formed so that the grouting steel pipe 110 can move through it, and the steel pipe hole 552 is formed in the center of the entry plate 550.

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: MSI 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: Caulking packer 123: Steel pipe extension pipe
124: cutting groove
200: Mixing fixing member 210: Metal fixing member
211: member bolt 212: binding magnetic
213: Rotating support plate 214: Magnetic lever
215: rotation groove 216: rotation bearing
217: rotation motor 218: rotation plate
219: fixing protrusion 220: fastening magnetic
221: driving lever 222: mixing fixing bar
300: Steel pipe support 310: Pipe coupling flange
311: Connector member 312: Rotating connector
313: Connector groove 314: Rotation hinge
315: Adjustable rotation bar 316: Plate hinge
317: Adhesion plate 318: Adhesion tube
319: Hardened capsule
400: Perforated hole heating unit 410: Seating opening and closing plate
411: Opening/closing hinge 412: Plate fastening bolt
413: Heater 414: Injection pipe
415: pressure regulator 416: connecting rod
417: Detachable member 418: Tube fixture
419: injection tube 420: injection hole
421: Temperature sensor
500: Horizontal maintenance insertion part 510: First fixing plate
511: 1st plate protection pad 512: 1st plate fixing bolt
513: first fixed hinge 514: first origin member
515: 1st adjustment bar 516: 1st cylinder fixing bar
517: first control cylinder 518: first cylinder hinge
519: first variable hinge 520: first origin sensor
530: Second fixing plate 531: Second plate protection pad
532: 2nd plate fixing bolt 533: 2nd fixing hinge
534: second origin member 535: second adjustment bar
536: 2nd cylinder fixer 537: 2nd control cylinder
538: 2nd cylinder hinge 539: 2nd bar variable hinge
540: Second origin sensor 550: Entry plate
551: Entry end 552: Steel pipe hole

Claims (3)

In the MSI steel pipe that penetrates into the ground and allows grouting to reinforce the ground,
The MSI 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 manufactured in different lengths and installed in plural numbers 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 that supports one side of a plurality of grouting injection pipes and is formed on one side of the grouting steel pipe to prevent one side from leaking out of the grouting liquid inside the grouting steel pipe,
A caulking packer that is installed on the outside of the rear end of the grouting steel pipe and is formed to seal the gap between the grouting steel pipe and the drilling hole by injecting caulking liquid from either the outside or the inside location,
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 MSI 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 the MSI 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 fixing the grouting steel pipe to the drilling hole by injecting caulking liquid into a caulking packer installed around the grouting steel pipe at the entrance to the drilling 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 MSI 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 the MSI 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;
An MSI steel pipe characterized in that it consists of a support installation step for cutting the steel pipe extension pipe so as not to interfere with the support material when excavating the support material installation location.
delete According to paragraph 1,
The MSI steel pipe is,
It mixes the grouting liquid injected into the drilling hole to remove air from the injected grouting liquid, and further includes a mixing fixing part to increase the adhesion between the drilling hole and the grouting steel pipe when the grouting liquid hardens,
The mixing fixing part is,
A metal fixing member fixed by member bolts on the upper and lower sides of the entrance to the drilling hole so that the binding magnetic is coupled and detachable;
A member bolt formed through the metal fixing member to secure the metal fixing member to the entrance side of the drilling hole,
A binding magnetic formed as a circular member so that it can be magnetically attached to and detached from a metal fixing member,
A rotation support plate formed on one side of the binding magnet to support the rotating rotation plate,
A magnetic lever formed to drive each binding magnet to one side and the other side of the rotating plate to drive the magnetism of the binding magnet,
A rotating groove formed on one side of the rotating plate so that the rotating plate can be coupled and rotated,
A rotation bearing coupled to the inside of the rotation groove so that the rotation plate can rotate based on the rotation support plate,
A rotation motor fixed to the other side of the rotation support plate to generate driving force to rotate the rotation plate,
A rotating plate, one side of which is in close contact with a rotating bearing and rotated without friction on the rotating support plate, and connected to the motor shaft of the rotating motor to rotate the fixed protrusion;
A fixing protrusion formed on one side of the rotating plate so that the fastening magnetic can be coupled,
A fastening magnet formed between the fixing protrusion and the mixing fixing bar so that the mixing fixing bar and the fixing protrusion can be coupled by magnetism,
A driving lever formed on one side of the fastening magnet to drive the magnetism of the fastening magnet,
An MSI steel pipe is rotated between the drilled hole and the grouting steel pipe when the rotating plate rotates, and includes a mixed fixing bar that is coupled to the fastening magnet by magnetism and can be detached from the fastening magnetic when the grouting liquid hardens.