KR101015222B1 - Multistage grouting apparatus using packer - Google Patents

Multistage grouting apparatus using packer Download PDF

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Publication number
KR101015222B1
KR101015222B1 KR1020100065441A KR20100065441A KR101015222B1 KR 101015222 B1 KR101015222 B1 KR 101015222B1 KR 1020100065441 A KR1020100065441 A KR 1020100065441A KR 20100065441 A KR20100065441 A KR 20100065441A KR 101015222 B1 KR101015222 B1 KR 101015222B1
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KR
South Korea
Prior art keywords
injection
tube
packer
steel pipe
hardener
Prior art date
Application number
KR1020100065441A
Other languages
Korean (ko)
Inventor
동용원
민윤기
최길현
Original Assignee
주식회사 대덕지질
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Priority to KR1020100065441A priority Critical patent/KR101015222B1/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00Geometrical or physical properties
    • E02D2200/16Shapes
    • E02D2200/1685Shapes cylindrical
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/003Injection of material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder

Abstract

The present invention is a grouting construction device to prevent the collapse of the ground by tunneling or injecting concrete hardener such as milk cement into the slope to fill the crushing zone and joint surface while forming a bulb, the installation of a double pipe inside the drilling hole The present invention relates to a double pipe multi-stage grouting construction apparatus using a packer to harden by injecting concrete hardener into multiple stages using a packer.
The present invention inserts an injection inner tube into the interior of the injection exterior sealed in the tip end, but inserts a plurality of spacers to keep a constant gap between the injection exterior on the outer side of the injection inner tube, and a perforation hole on the outside of the injection exterior. Insert the outer spacer to maintain the interval between the at regular intervals, the injection inner tube is provided with a discharge port for discharging the concrete curing agent in one direction to the outside of the injection outer shell at regular intervals, and prevents the injection inner tube to the inside of the injection inner tube The main unit is provided by installing a packer, and installing an injection tube for injecting the concrete hardener in one direction through the packer.

Description

Multistage grouting apparatus using packer

The present invention is a grouting construction device to prevent the collapse of the ground by tunneling or injecting concrete hardener such as milk cement into the slope to fill the crushing zone and joint surface while forming a bulb, the double steel pipe inside the perforated hole It is related to a double pipe multi-stage grouting construction apparatus using a packer to harden by injecting the concrete hardener in multiple stages using a packer after installation.

The present invention prevents the risk of collapse by reinforcing the ground in the work site or slope of the tunnel, which is concerned about collapse due to weak ground at the construction site, the ground reinforcing method is usually drilled in the soft ground and then drilled into the interior of the perforated hole By installing one hardener injection steel pipe and forcibly injecting a concrete hardener into the inside of the steel pipe, the ground is strengthened by the formation of bulbs by the hardener.

However, in the case of using a single steel pipe, the ground is not very fragile, the rigidity does not show a problem that the work or slope of the tunnel collapses.

The present invention is to solve the problem of not being able to effectively prevent the collapse of tunnels or the destruction of slopes in the ground reinforcement method of the method of the ground reinforcement method of injecting concrete hardener after drilling holes to reinforce the soft ground. By using double steel pipe and using a packer, grouting is performed in multiple stages so that rigid and solid ground reinforcement is achieved.

The present invention inserts an injection inner tube into the interior of the injection exterior sealed in the tip end, but inserts a plurality of spacers to keep a constant gap between the injection exterior on the outer side of the injection inner tube, and a perforation hole on the outside of the injection exterior. Insert the outer spacer to maintain the interval between the at regular intervals, the injection inner tube is provided with a discharge port for discharging the concrete curing agent in one direction to the outside of the injection outer shell at regular intervals, and prevents the injection inner tube to the inside of the injection inner tube The main unit is provided by installing a packer, and installing an injection tube for injecting the concrete hardener in one direction through the packer.

In the present invention, the discharge port is provided with a non-return valve to prevent the reverse flow to prevent the hardener discharged to the outside to be introduced into the interior by the injection pressure.

The present invention fills the gap between the double steel pipe and the perforation hole by injecting a seal material without pressure before the injection of the hardener, and then moves the position of the packer and injects the hardener in multiple stages so that the hardener is injected into the joint or fracture zone. To increase.

According to the present invention, after injecting a double steel pipe into a punching hole and filling the space between the punching hole and a double steel pipe without pressure, the hardener is discharged by injecting a packer into the injection inner pipe to prevent backflow and then injecting a concrete hardener into the injection inner pipe. The reverse flow is prevented by the actual material, and after filling the jointed surface or the crushing zone, the packer is moved forward, and then, through the above-described process, the ground is prevented and the rigidity is formed by the formation of injection bulbs. It will also be possible to do.

1 is a cross-sectional front view of the present invention double steel pipe
2 is a cross-sectional view of the discharge port of the present invention
Figure 3 is a discharge state diagram at the discharge port of the present invention
4 is a state diagram used in the present invention
5 is a state diagram used in the state of moving the packer of the present invention
Figure 6 is a cross-sectional view of the double steel pipe of the present invention inserted into the hole
7 is a cross-sectional plan view of a double steel pipe of the present invention

The present invention drills a drill hole (10), such as a work or slope using a puncher, and inserts the double steel pipe 100 in the drilling hole 10 to move the packer 200 in the interior of the double steel pipe (100) By injecting the concrete hardener into the interior of the double steel pipe 100, the concrete hardener fills the interior of the double steel pipe 100 and the perforation hole 10, and then fills the joint surface 11 or the crushing zone 12 to form the injection bulb 13. To do that.

In the present invention, the drilling hole 10 having a predetermined depth and angle using the punching machine is known in the art, and the drilling hole 10 is to reinforce the rigidity of the ground to prevent collapse or collapse, etc. After forming the place for filling the concrete hardener inside to strengthen the strength.

The present invention is to fit the double steel pipe 100 to the drilling hole 10, the double steel pipe 100 is the injection inner tube 120 having a shape in which the tip is open in the interior of the injection exterior 110 is sealed tip Insert the spacer member 130 on the outside of the injection inner tube 120 to maintain a predetermined interval between the injection outer tube 110, the injection inner tube 120 to the outside of the injection outer tube 110 Discharge holes 140 for discharging the concrete curing agent are installed at regular intervals, and made by blocking the injection plate 110 and the inlet side of the injection inner tube 120 with the blocking plate 150.

In the discharge port 140 of the present invention, by installing a non-return valve 141 for discharging the curing agent to the outside only to prevent the flow back to the inside, the curing agent injected into the interior of the double steel pipe 100 from the outside discharge port 140 Only to be discharged to the outside through the) to prevent the backflow by the non-return valve 141.

Here, when the discharge port 140 is blocked by using a rubber band or the like without using the check valve 141, the discharge pressure of the discharge port 140 causes the discharge of the curing agent to occur. Closing the discharge inlet by the band eliminates the case where the discharged curing agent flows back to the discharge port 140.

The packer 200 is installed inside the injection inner tube 110 of the present invention, but the packer 200 is inflated using hydraulic pressure, and the hydraulic supply is selected to block the injection inner tube 110 with the packer 200. It is possible to give or move the packer 200, and to install the injection pipe 210 through the packer 200 to enable the injection of concrete hardener through the injection pipe 210.

By installing a non-return valve to the injection tube 210, it is preferable to prevent the hardener injected into the injection tube 210 from flowing backward.

Injecting the outer appearance 110 of the present invention by inserting the outer spacer 160 to the outside to maintain a constant interval with the punching hole 10, the outer spacer 160 of the present invention is a punching hole 10 In order to maintain a constant interval between the double steel pipe (100) inside the) to install an outer spacer 160 to allow the hardener or the material to move freely between the outer spacer 160.

And the double steel pipe 100 of the present invention is made to have a predetermined length, but to be used in connection with a plurality in order to use in a deep drilling hole, for this purpose, the double steel pipe 100 as necessary length such as screw coupling Connect and use.

The process of forming the punching hole 10 in the present invention of such a configuration is known in the art and using a punching machine, etc., if the punching hole 10 is drilled to a certain depth, the hole of the punching hole 10 The double steel pipe 100 is inserted into the inside, and the double steel pipe 100 is fitted with an external spacer 160 so that the perforated hole 10 and the double steel pipe 100 are spaced apart by the external spacer 160. Make sure that it stays in place.

Then, at the inlet of the drilling hole 10 to fit the caulking 170 to prevent the gap between the double steel pipe 100 and the drilling hole 10.

The double steel pipe 100 is inserted into the injection inner tube 120 having a form in which the tip is opened in the interior of the injection outer appearance 110 sealed in the tip, the spacer 130 is fitted to the outside of the injection inner tube 120 The interval between the injection appearance 110 and maintain a constant interval, the inlet side of the double steel pipe 100 prevents the injection plate 110 and the injection inner tube 120 between the blocking plate 150.

In addition, the injection inner tube 120 of the double steel pipe 100 is provided with a discharge port 140 for discharging the concrete hardener to the outside of the injection outer tube 110 at regular intervals, the discharge port 140 is provided with a non-return valve 141 It is installed so that the curing agent is discharged to the outside and does not flow backward.

In addition, the inlet between the injection tube 110 and the drilling hole 10 of the double steel pipe 100 is fitted with a caulking 170 so that the hardener filling the drilling hole 10 does not leak to the outside.

The double steel pipe 100 is fitted in the drilling hole 10, in this state by inserting the packer 200 into the inside of the injection inner pipe 120 to move the packer 200 to a certain depth of the double steel pipe 100 After supplying hydraulic pressure to the packer 200, the packer 200 is expanded to block the injection tube 120.

Here, the packer 200 may be injected through the injection tube 210 so that the curing agent may be injected into the inside of the injection inner tube 120 through the injection tube 210.

After inserting the packer 200 into the injection inner tube 120 of the double steel pipe 100 as described above, the material is injected into the injection tube 210 without pressure to be discharged to the outside through the discharge port 140 from the injection inner tube 120. The actual material is injected between the injection appearance 110 and the punching hole 10 to fill the punching hole 10.

The reason for filling the drilling hole 10 in reality is that when the concrete curing agent is injected, the concrete curing agent does not flow back to the inlet of the drilling hole 10 to find the joint surface 11 or the crushing zone 12 and the injection is made while the injection bulb 13 To be formed.

After injecting the substance through the injection pipe 210 and then injecting the concrete hardener applied with pressure into the injection pipe 210, the hardener fills the injection inner pipe 120 and then opens the check valve 141 at the discharge port 140. The curing agent discharged toward the drilling hole 10 and discharged to the drilling hole 10 is applied with a high pressure, and thus filling is performed while filling the joint surface 11 or the crushing stand 12 which is an empty space. It is widely injected into the outer ground of the injection bulb 13 to form.

When the concrete hardener is injected by pressure through the injection pipe 210, the hardener is filled into the blocked portion by the packer 200 of the injection inner tube 120, and then the injection is made to the outside through the discharge port 140, so that the hardener is perforated. The inside of the hole 10 is filled while being injected into the joint surface 11 and the crushing table 12.

At this time, the hardener is prevented from being reversed by the material filled in the drilling hole 10, and the injection into the joint surface 11 or the crushing zone 120 is performed.

At the same time, the curing agent is injected into the gap of the ground to form the injection bulb 130.

When the injection of the curing agent is completed as described above, the hydraulic pressure of the packer 200 is discharged, the packer 200 is moved to the rear of the injection inner tube 120, and the hydraulic pressure is supplied again to packer 200 to the injection inner tube 120. Block the entrance.

At this time, the part blocked by the packer 200 is a part moved a predetermined distance toward the inlet from the position of the packer described above, by injecting the concrete hardener into the injection tube 210 penetrating the packer 200 of the injection inner tube 120 While filling the space, it is discharged to the outside through the discharge port 140 to fill the perforation hole 10 to be injected into the joint surface 11 or the crushing table 12.

In the same manner as described above in a multi-stage to inject the concrete hardener into the drill hole 10, the ionizing surface 11 and the crushing table 12 while forming the injection bulb 13, when the injection and hardening of the concrete hardener is made The packer 200 is reduced so that it can be reused by taking it out together with the injection pipe 210, and the double steel pipe 100 is hardened with a curing agent while being inserted into the drilling hole 10, and at the same time, the injection bulb 130 is formed in multiple stages. This can greatly increase the rigidity.

That is, the present invention can maintain a greater stiffness than when using a conventional single pipe, the effect of suppressing the collapse of the tunnel face or slope slope fracture is greater and the rigidity is increased to support one or two points when reinforcing the tunnel face It can play a sufficient role as a boy.

10: drilling hole 11: joint surface
12: crushing stand 13: injection bulb
100: double steel pipe 110: injection appearance
120: injection tube 130: spacer
140: discharge port 150: blocking plate
160: outer spacer 170: caulking
200: packer 210: injection tube

Claims (3)

  1. While inserting the injection inner tube 120 in the interior of the injection outer tube 110 is sealed in the tip end of the spacer 130 to maintain a constant gap between the injection outer tube 110 on the outer side of the injection inner tube (120) Inserted, the injection inner tube 120 discharges the concrete hardener to the outside of the injection outer shell 110 to the drilling hole 10, the joint surface 11 and the crushing table 12, the discharge port provided with a check valve 141 ( 140) is installed at regular intervals to configure a double steel pipe (100),
    The double steel pipe 100 is inserted into the drilling hole 10, the outer side of the injection external 110, while inserting several external spacers 160 to maintain a constant space between the hole 10 and the double steel pipe The inlet of the injection inner tube 120 fitted inside the injection exterior 110 forming the (100) blocks the blocking plate 150,
    To install the packer 200 to block the injection tube 120 to the inside of the injection tube 120 to install an injection tube 210 for injecting concrete hardener in one direction through the packer 200 Double pipe multi-stage grouting construction apparatus using a packer characterized in that.
  2. delete
  3. delete
KR1020100065441A 2010-07-07 2010-07-07 Multistage grouting apparatus using packer KR101015222B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100065441A KR101015222B1 (en) 2010-07-07 2010-07-07 Multistage grouting apparatus using packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100065441A KR101015222B1 (en) 2010-07-07 2010-07-07 Multistage grouting apparatus using packer

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KR101015222B1 true KR101015222B1 (en) 2011-02-18

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101374165B1 (en) * 2013-05-29 2014-03-13 이인숙 Method for multi-stage downward pressure-injection
KR101458492B1 (en) * 2013-12-18 2014-11-07 김승기 System for multi-stage downward pressure-injection
KR101536209B1 (en) * 2014-01-08 2015-07-14 (주)동명기술공단종합건축사사무소 Steel Pipe Multi Step Grouting device Open and cut and NATM complex excavation tunnel construction method
KR101648814B1 (en) * 2016-05-11 2016-08-17 김동수 Separated steel pipe structure for preventing backward flow and, the grouting mathod using the same
KR101655046B1 (en) * 2015-10-19 2016-09-07 장윤종 Mutlti-stage grouting apparatus and method
KR101678950B1 (en) * 2016-06-23 2016-11-23 우경기술주식회사 Method of reinforcing and restoring structure using pile
KR101758196B1 (en) * 2015-10-29 2017-07-26 (주)학영엔지니어링 Pressure grouting steel with deformed steel pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010010803A (en) * 1999-07-23 2001-02-15 최홍기 An apparatus and method for multi-step grouting using FRP tube
KR20030070667A (en) * 2002-02-26 2003-09-02 정백훈 Method for processing a dye metallic color of textile
KR100420502B1 (en) * 1999-12-28 2004-03-02 쿄카도 엔지니어링 주식회사 Pouring pipe apparatus and the ground pouring method of construction
KR200370667Y1 (en) * 2004-09-22 2004-12-23 (주)지중공영 The bolt for Multi-step urethane grouting
KR20060112773A (en) * 2005-04-28 2006-11-02 (주)진양비지엠텍 Valve spacer for grouting reinfor cement pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010010803A (en) * 1999-07-23 2001-02-15 최홍기 An apparatus and method for multi-step grouting using FRP tube
KR100420502B1 (en) * 1999-12-28 2004-03-02 쿄카도 엔지니어링 주식회사 Pouring pipe apparatus and the ground pouring method of construction
KR20030070667A (en) * 2002-02-26 2003-09-02 정백훈 Method for processing a dye metallic color of textile
KR200370667Y1 (en) * 2004-09-22 2004-12-23 (주)지중공영 The bolt for Multi-step urethane grouting
KR20060112773A (en) * 2005-04-28 2006-11-02 (주)진양비지엠텍 Valve spacer for grouting reinfor cement pipe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101374165B1 (en) * 2013-05-29 2014-03-13 이인숙 Method for multi-stage downward pressure-injection
KR101458492B1 (en) * 2013-12-18 2014-11-07 김승기 System for multi-stage downward pressure-injection
KR101536209B1 (en) * 2014-01-08 2015-07-14 (주)동명기술공단종합건축사사무소 Steel Pipe Multi Step Grouting device Open and cut and NATM complex excavation tunnel construction method
KR101655046B1 (en) * 2015-10-19 2016-09-07 장윤종 Mutlti-stage grouting apparatus and method
KR101758196B1 (en) * 2015-10-29 2017-07-26 (주)학영엔지니어링 Pressure grouting steel with deformed steel pipe
KR101648814B1 (en) * 2016-05-11 2016-08-17 김동수 Separated steel pipe structure for preventing backward flow and, the grouting mathod using the same
KR101678950B1 (en) * 2016-06-23 2016-11-23 우경기술주식회사 Method of reinforcing and restoring structure using pile

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