KR101570955B1 - Method of handling light weight mixed soil - Google Patents

Method of handling light weight mixed soil Download PDF

Info

Publication number
KR101570955B1
KR101570955B1 KR1020150064775A KR20150064775A KR101570955B1 KR 101570955 B1 KR101570955 B1 KR 101570955B1 KR 1020150064775 A KR1020150064775 A KR 1020150064775A KR 20150064775 A KR20150064775 A KR 20150064775A KR 101570955 B1 KR101570955 B1 KR 101570955B1
Authority
KR
South Korea
Prior art keywords
pipe
closed
slurry
tube
feeding
Prior art date
Application number
KR1020150064775A
Other languages
Korean (ko)
Inventor
김영주
한정수
Original Assignee
김영주
한정수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김영주, 한정수 filed Critical 김영주
Priority to KR1020150064775A priority Critical patent/KR101570955B1/en
Application granted granted Critical
Publication of KR101570955B1 publication Critical patent/KR101570955B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1003—Means for stopping flow from or in pipes or hoses by introduction of paste, powder, particles, or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

A closed pipe treatment device is disclosed. The closed pipe treatment device comprises: a slurry generation unit generating soil slurry; a slurry pumping unit connected with the slurry generation unit through a pipe and pumping the soil slurry generated in the slurry generation unit to feed the soil slurry toward the closed pipe; a feed pipe of which a first end part is connected to the slurry pumping unit and a second end part is positioned inside the closed pipe and conveying the soil slurry to the inside of the closed pipe; and a foaming agent supply unit generating a foaming agent and supplying the foaming agent to the inside of the feed pipe.

Description

{METHOD OF HANDLING LIGHT WEIGHT MIXED SOIL}

The present invention relates to a closed pipe treatment apparatus and a closed pipe treatment method using the same, and more particularly, to a closed pipe treatment apparatus for preventing breakage of a closed pipe and a closed pipe treatment method using the same.

Recently, the incidence of sink holes in urban areas is increasing. The main cause of the sinkhole in the urban area is found to be caused by groundwater depletion due to groundwater development and soil depression due to the destruction of the aged closed pipe.

In the sinkhole due to the groundwater level dropping, it is desirable to fill the sinkhole in the sinkhole to repair the sinkhole, and to remove the closed pipe due to the destruction of the closed pipe. However, due to the circumstance surrounding the closed pipe and economic reasons, The sink hall is being renovated by filling the gutter with the gravel without demolishing it. However, repairing the sink hole by filling up the gravel has a problem that the gravel particles are removed due to rainfall and the sink hole recovers as the gravel soil sinks. Therefore, it is urgent to take countermeasures to prevent occurrence of a sink hole in an urban area.

Korean Patent No. 10-0546240

The present invention provides a closed pipe treatment apparatus capable of effectively preventing formation of a sink hole in a ground due to the breakage of a closed pipe, and a closed pipe treatment method using the same.

The apparatus for treating a closed pipe of the present invention comprises a slurry producing unit for producing a slurry slurry; A slurry pumping unit connected to the slurry producing unit through a pipeline and pumping the slurry slurry generated by the slurry producing unit to transport the slurry to the closed pipe; A feed pipe connected to the slurry pumping section at a first end and a second end located at the inside of the closed pipe, the feed pipe feeding the slurry to the inside of the closed pipe; And a foaming agent supply part for producing foaming agent and supplying the foaming agent into the inside of the above-mentioned pressure-feeding tube.

On the other hand, the closed tube processing apparatus includes a feed tube feed wire having one end connected to the second end of the feed tube; And a wire conveying device connected to the other end of the conveying wire for conveying the conveying pipe and moving the other end of the conveying pipe for conveying the conveying pipe to the inside of the closed pipe.

In one embodiment, the wire transfer apparatus further comprises: a driving unit for advancing the wire transfer apparatus; And casters radially disposed on the driving portion, the casters being supported on the inner surface of the closed tube and rolling along the inner surface of the closed tube, wherein the casters are configured to be stretchable.

In one embodiment, the closed tube repairing apparatus further includes a sealing member that seals the front end and the rear end of the closed tube, and the sealing member includes an opening, the second end of the press- It can be located inside the closed pipe.

According to the closed pipe treating apparatus and the closed pipe treating method using the closed pipe treating apparatus according to the present invention, it is possible to effectively prevent the formation of a sink hole in the ground due to the destruction of the closed pipe after the closed pipe is buried and covered with the gravel without removing the closed pipe.

1 is a view showing a configuration of a closed tube processing apparatus according to an embodiment of the present invention.
FIG. 2 is a view for explaining the wire transporting apparatus shown in FIG. 1. FIG.
FIG. 3 is a view showing a state in which the wire transfer device shown in FIG. 1 transfers a wire for feeding a press-feeding pipe to the inside of a closed pipe.
4 is a view illustrating a configuration of a closure member of a closed pipe treatment apparatus according to an embodiment of the present invention and a state in which the closure member is coupled to a closed pipe.
5 is a flowchart illustrating a procedure of a closed pipe disposal method according to an embodiment of the present invention.
FIG. 6 is a flowchart for explaining a specific process of inserting a press-feeding pipe for supplying the closed tube filling material shown in FIG. 5 into the inside of the closed pipe.

Hereinafter, a closed tube processing apparatus and a closed tube processing method using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a block diagram of a closed pipe repairing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a closed pipe repairing apparatus according to an embodiment of the present invention includes a slurry generating unit 110, a slurry pumping unit 120, a feed pipe 150, and a foam supplying unit 160.

The slurry generator 110 generates a slurry. Here, the soil slurry refers to a slurry produced in the form of slurry. For example, the slurry generator 110 includes a cylindrical agitator body 111 having an internal space and an open upper surface, a rotary shaft 112 and a stirring blade 113 housed in the agitator body 111, a rotary shaft 112, And a filter 115 installed on one side of the open upper surface of the agitator body 111 for filtering gravel or foreign matter in the soil.

In order to produce the slurry in the slurry generator 110, the slurry generator 110 is charged with soil, a solidifying agent, and water. At this time, the ratio of the soil, the solidifying agent and the water may be mixed at a ratio of 1: 0.05: 1.12.

The slurry pumping unit 120 pumps the slurry to pressurize the slurry produced in the slurry generator 110 toward the closed pipe. For example, the slurry pumping unit 120 may be connected to the slurry generating unit 110 through the first conduit 131. A first valve 141 may be provided on the first conduit 131.

The feed pipe 150 is connected to the slurry pumping unit 120 to feed the slurry pumped slurry through the slurry pumping unit 120 to the inside of the closed pipe. For example, the feed pipe 150 may have a first end connected to the slurry pumping portion 120 through the second pipe 132, and a second end located inside the closed pipe. A second valve 142 may be provided on the second line 132.

The foaming agent supply unit 160 generates foaming agent and supplies foaming agent into the inside of the pressure-feeding tube 150. In one example, the foaming agent supply portion 160 may include a body portion 161 that generates foaming agent and a discharge hose 162 that discharges the foaming agent. The discharge hose 162 may be connected to the second pipe 132 connected to the pressure feeding pipe 150. The foaming agent discharged through the discharge hose 162 may be mixed with the soil slurry in the second channel 132 and transferred to the inside of the closed tube 10 through the feed pipe 150 together with the soil slurry.

On the other hand, a feed pipe 170 for conveying a feed pipe and a wire feed device 180 are disposed to place the second end of the feed pipe 150 inside the closed pipe 10.

The conveyance wire 170 for conveying the conveyance pipe is connected to the conveyance pipe 150 for conveying the conveyance pipe 150. One end of the conveyance wire 170 is connected to the second end of the conveyance pipe 150 . There is no particular limitation on the method of connecting one end of the conveyance wire 170 to the second end of the conveyance pipe 150. When the conveyance wire 170 is pulled in one direction, And the second end can be pulled together. The conveying wire 170 is fed to the inside of the closed tube 10 and pulled by an operator or wound around a winding roll 10).

FIG. 2 is a view for explaining the wire transporting apparatus shown in FIG. 1. FIG.

2, the wire conveying device 180 is connected to the other end of the conveyance wire 170, that is, the end of the conveyance wire 170, which is not connected to the conveyance pipe 150, As shown in FIG. The wire conveying apparatus 180 may include a driving unit 181 and casters 182.

The driving unit 181 causes the wire feeding device 180 to advance. For example, the driving unit 181 may include a body 181a, a motor 181b, and a propeller 181c. The body 181a may have a rectangular parallelepiped shape having an internal space. The motor 181b is housed in the internal space of the body 181a and the propeller 181c can be connected to the drive shaft of the motor 181b and rotated. In this case, when the motor 181b is driven, the driving unit 181 generates driving force as the propeller 181c rotates, so that the wire conveying device 180 can be advanced.

The castor portions 182 are disposed radially on the driving portion 181. The casters 182 may be configured to be extendable and retractable. As an example, each castor portion 182 may include a spring 182a and a castor 182b. One end of the spring 182a may be connected to the body 181a of the driving portion 181 and the caster 182b may be fixed to the other end of the spring 182a. The castors 182 are supported on the inner surface of the closed pipe 10 to be able to roll along the inner surface of the closed pipe 10. The caster portions 182 also include a spring 182a so that the caster portions 182 are expandable and contractible when the caster 182b hits an obstacle in the presence of obstacles in the closed tube 10 when passing inside the closed tube 10, Can be restored after being bent. Thereby, the wire conveying apparatus 180 can move without difficulty even if an obstacle exists in the closed tube 10. [ FIG. 3 is a view showing a state in which the wire transfer device shown in FIG. 1 transfers the transfer tube for transferring the transfer tube to the inside of the closed tube. The transfer tube 170 for transferring the transfer tube through the wire transfer device 180, As shown in FIG.

4 is a view illustrating a configuration of a closure member of a closed pipe treatment apparatus according to an embodiment of the present invention and a state in which the closure member is coupled to a closed pipe.

The sealing member 190 (see FIG. 1) for completely filling the inside of the closed tube 10 without supplying the closed tube filling material when supplying the closed tube filling material, that is, the soil slurry and the foaming agent to the inside of the closed tube 10 through the feeding tube 150 ).

Referring to FIG. 4, the sealing member 190 seals the front end and the rear end of the closed tube 10. In one example, the closure member 190 may include a circular plate 191 and a stationary bracket 192.

The circular plate 191 has a diameter corresponding to the outer diameter of the closed tube 10, and an opening 191a may be formed on one side. The opening 191a may be for penetrating the air-feeding tube 150 and circulating air. When the sealing member 190 is installed in the closed pipe 10, the second end of the pressure feeding pipe 150 may be located inside the closed pipe 10 through the opening 191a.

The fixing bracket 192 is fixed to one surface of the circular plate 191 and fixes the circular plate 191 to the closed tube 10. For example, the fixing bracket 192 may be in the form of a "C" shaped cross section, or may be plural. In the case of a plurality, the fixing brackets 192 may be arranged to cross each other.

Hereinafter, a method for repairing a closed pipe using the closed pipe repair apparatus according to an embodiment of the present invention will be described. 5 is a flowchart illustrating a procedure of a closed pipe disposal method according to an embodiment of the present invention.

Referring to FIG. 5, a method of closing a closed tube according to an embodiment of the present invention includes: preparing a closed tube filling material (S110); Inserting a feed pipe for feeding the closed pipe material into the closed pipe (S120); (S130) mounting a sealing member including an opening at the front end and the rear end of the closed pipe so that the end portion of the pressure feeding pipe is inserted into the closed pipe through the opening; And feeding the closed tube filling material into the closed tube by feeding the closed tube filling material through the feeding tube (S140).

In step S110 of preparing the waste pipe filling material, a slurry is produced through the slurry producing unit 110, and a foaming agent is produced through the foaming agent supplying unit 160. Here, the closed pipe material means a material in which the slurry and the foaming agent are mixed, and is a material finally supplied to the inside of the closed pipe 10.

In the step S120 of inserting the feed pipe for supplying the closed pipe filling material into the closed pipe, the feed pipe 170 for feeding the feed pipe and the wire feed device 180 are used. FIG. 6 is a flowchart for explaining a specific process of inserting a press-feeding pipe for supplying the closed-pipe filling material shown in FIG. 5 into the inside of the closed pipe, in which the press-feeding pipe for supplying the closed pipe filling material is inserted into the closed pipe FIG. 6 is referred to for the specific process of step S120.

First, one end of the conveyance wire 170 is connected to the second end of the conveyance pipe 150, and the other end of the conveyance wire 170 is connected to the wire conveyance device 180 (S121).

Next, the driving unit 181 of the wire feeding device 180 is operated to advance the wire feeding device 180 toward the inside of the closed pipe 10 in the closed pipe (S122). At this time, the second end of the conveyance wire 170 for conveying the conveyance tube moves along the wire conveyance device 180, and the wire conveyance device 180 passes through the inside of the closed tube 10 or the inside of the closed tube 10, The second end portion of the conveyance wire 170 for conveying tube is also located inside the closed tube 10 or at the rear end side of the closed tube 10.

Next, when the second end of the conveyance wire 170 located inside the closed tube 10 or the rear end side of the closed tube 10 is held and pulled in the direction in which the closed tube 10 is located, The end of the feed pipe 150 connected to the first end of the pipe 10 moves toward the closed pipe 10 and is located inside the closed pipe 10 (S123).

The circular plate 191 of the closure member 190 is brought into close contact with the front end and the rear end of the closed tube 10 and then the fixing bracket 192 is attached to the front end and the rear end of the closed tube 190, And the circular plate 191 is fixed to the front end and the rear end of the closed pipe 10 to seal the inside of the closed pipe 10. At this time, the pressure feeding pipe 150 located inside the closed pipe 10 passes through the opening 191a of the sealing member 190 and the second end of the pressure feeding pipe 150 is positioned inside the closed pipe 10 State.

The slurry pumping section 120 is operated to pump the slurry slurry in the slurry generating section 110 and to supply the slurry pumping section 120 to the feed pipe (150), and the foaming agent supplying unit (160) is operated to supply foaming agent into the inside of the feeding tube (150). Thus, the soil slurry and the foaming agent are mixed in the inside of the pressure conveying pipe 150, and the closed pipe filling material generated thereby is injected into the closed pipe 10 through the pressure conveying pipe 150. When the closed tube filling material is injected into the closed tube 10, the pressure feeding tube 150 is gradually pulled in a direction away from the closed tube 10 to inject the closed tube filling material into the entire inside of the closed tube 10.

When the closed tube filling material is filled in the closed tube 10 through this process, the closed tube filling material hardens over time at room temperature, and the cured closed tube filling material reinforces the closed space of the closed tube 10, It is possible to prevent the closed tube 10 from being destroyed after being buried in the soil by covering it with the soil. Therefore, it is possible to effectively prevent formation of sink holes in the ground due to destruction of the closed pipe 10 after the closed pipe 10 is covered with the gravel and buried without removing the closed pipe 10.

Since the closed tube filling material filled in the closed tube 10 is a mixture of the soil slurry and the foaming agent, the amount of the used gypsum is reduced and the material cost is reduced. The weight of the closed tube filling material is reduced by the foaming agent, The load applied in the circumferential direction of the inner surface of the closed pipe 10 by the closed tube filling material can be reduced, whereby the breakage of the closed pipe 10 can be further prevented.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

Claims (7)

Preparing a closed tube material;
Inserting a feed pipe for feeding the closed pipe material into the closed pipe;
Mounting a closure member including an opening at a front end and a rear end of the closed pipe so that an end of the feed pipe is inserted into the closed pipe through the opening; And
And feeding the closed tube filling material into the closed tube by feeding the closed tube filled material through the feeding tube,
Wherein the step of inserting the feed pipe for supplying the closed pipe material into the closed pipe comprises:
Connecting one end of the feeding pipe to one end of the feeding pipe and connecting the other end of the feeding pipe to the wire feeding device;
Actuating the wire transfer device to move the wire transfer device toward the interior of the closed tube; And
And a step of pulling the conveying wire in the direction in which the closed tube is located to place one end of the conveying tube inside the closed tube. delete The method according to claim 1,
Characterized in that the closed tube material comprises a soil slurry and a foaming agent mixed with soil, a solidifying agent and water. A slurry producing unit for producing a soil slurry;
A slurry pumping unit connected to the slurry producing unit through a pipeline and pumping the slurry slurry generated by the slurry producing unit to transport the slurry to the closed pipe;
A feed pipe connected to the slurry pumping section at a first end and a second end located at the inside of the closed pipe, the feed pipe feeding the slurry to the inside of the closed pipe;
A foaming agent supply unit for generating foaming agent and supplying the foaming agent to the inside of the above-mentioned conveyance pipe;
A feed tube for feeding one end of the feed tube to the second end of the feed tube; And
And a wire conveying device connected to the other end of the conveying wire for conveying the conveying tube and for moving the other end of the conveying wire for conveying the conveying tube to the inside of the closed tube. delete 5. The method of claim 4,
The wire conveying device includes:
A driving unit for advancing the wire feeding device; And
And casters disposed radially on the drive unit, the casters being supported on the inner surface of the closed pipe and rolling along the inner surface of the closed pipe,
And the casters are configured to be stretchable and contractible. The method according to claim 6,
The closed-
Further comprising a sealing member sealing the front end and the rear end of the closed pipe,
Wherein the sealing member includes an opening,
And the second end of the pressure feeding pipe is located inside the closed pipe through the opening.
KR1020150064775A 2015-05-08 2015-05-08 Method of handling light weight mixed soil KR101570955B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150064775A KR101570955B1 (en) 2015-05-08 2015-05-08 Method of handling light weight mixed soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150064775A KR101570955B1 (en) 2015-05-08 2015-05-08 Method of handling light weight mixed soil

Publications (1)

Publication Number Publication Date
KR101570955B1 true KR101570955B1 (en) 2015-11-20

Family

ID=54844432

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150064775A KR101570955B1 (en) 2015-05-08 2015-05-08 Method of handling light weight mixed soil

Country Status (1)

Country Link
KR (1) KR101570955B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102159210B1 (en) * 2020-06-22 2020-09-24 (주)로터스지이오 One component type eco-friendly grout composition for old scrapped water pipes and grouting method for scrapped water pipes using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100565866B1 (en) * 2003-08-20 2006-04-04 최춘식 Inside hollow of abandoned structure filling method of construction using filling system and this
KR100838602B1 (en) 2007-04-06 2008-06-16 인중종합건설(주) A method of construction to pour concrete of scrapped water pipes for being replaced the water pipes become superannuated

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100565866B1 (en) * 2003-08-20 2006-04-04 최춘식 Inside hollow of abandoned structure filling method of construction using filling system and this
KR100838602B1 (en) 2007-04-06 2008-06-16 인중종합건설(주) A method of construction to pour concrete of scrapped water pipes for being replaced the water pipes become superannuated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102159210B1 (en) * 2020-06-22 2020-09-24 (주)로터스지이오 One component type eco-friendly grout composition for old scrapped water pipes and grouting method for scrapped water pipes using the same

Similar Documents

Publication Publication Date Title
KR101038486B1 (en) non-excavation type sewer repairing apparatus having packer and method for it
KR101570955B1 (en) Method of handling light weight mixed soil
KR101381566B1 (en) super slurry type shield tunneling machine and super slurry type propulsion method using it
KR101498727B1 (en) Air combined dredging cars
JP2006074939A (en) Method for removing filled sand and power cable in subterranean buried trough, method for regenerating trough and for filling hollow portion
JP4152935B2 (en) Reconstruction method and equipment for existing pipes
CN108372196B (en) Heavy metal contaminated soil remediation method
KR100299939B1 (en) Method for dredging of drain pipe and device the same
JP5775427B2 (en) Pressure feeding method of fluidized soil
JP2538520B2 (en) Method and device for closing pipes, etc.
JP2008266971A (en) Pipe line rehabilitation method and rehabilitation pipe for use in it
JP2003239686A (en) Pipe-jacking shield method and pipe-jacking shield machine
KR101556008B1 (en) Methods for lining and sterilization of water supply pipe using sprayer
KR101495593B1 (en) The excavation equipment
JPH11229755A (en) Reaching method for shield drilling machine and entrance device used for it
JP2685426B2 (en) Tube mounting method for buried objects
JP2007050381A (en) Method for developing waste treatment facility
JP3281940B2 (en) Underground pipe repair method
JP7161243B1 (en) Repair construction method and repair equipment for external water infiltration part of sewage pipe
KR101833963B1 (en) Non-excavated pipe repairing method with seismic function
KR101495573B1 (en) The excavation equipment for the assembly type pc box installation
JP6025218B2 (en) Radioactive soil cleaning device and system
JP2009047222A (en) Closing method of non-closed fitting pipe
JP5206363B2 (en) Sediment transport method and sediment transport system
KR200211197Y1 (en) Underground Pipe Repair Device

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180927

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20190916

Year of fee payment: 5