CN101806092A - Pipe jacking construction method capable of reducing friction resistance - Google Patents

Pipe jacking construction method capable of reducing friction resistance Download PDF

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Publication number
CN101806092A
CN101806092A CN 201010121097 CN201010121097A CN101806092A CN 101806092 A CN101806092 A CN 101806092A CN 201010121097 CN201010121097 CN 201010121097 CN 201010121097 A CN201010121097 A CN 201010121097A CN 101806092 A CN101806092 A CN 101806092A
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CN
China
Prior art keywords
pipe
sand
instrumentation tubes
jacking
fixating agent
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CN 201010121097
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Chinese (zh)
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CN101806092B (en
Inventor
王少春
贲晓明
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沈阳市政集团有限公司
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Priority to CN2010101210973A priority Critical patent/CN101806092B/en
Publication of CN101806092A publication Critical patent/CN101806092A/en
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Publication of CN101806092B publication Critical patent/CN101806092B/en

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Abstract

The invention relates to a pipe jacking construction method capable of reducing friction resistance. The upper and lower pipe walls at the left side and the right side of a working pipe are respectively provided with bentonite liquid injection holes, and the upper, left and right pipe walls of the pipe cap of the working pipe are respectively provided with sand-consolidating agent liquid injection holes. During pipe jacking construction, sand-consolidating agent liquid is injected to the space between the outer wall of the pipe cap and soil layer through the three sand-consolidating agent liquid injection holes in the pipe cap to form a sand-consolidating agent self-supporting arch between the soil layers outside the working pipe; and in the process of jacking the working pipe, bentonite liquid is injected into the interstice between the pipe wall of the working pipe and the sand-consolidating agent self-supporting arch by an injection pump through the bentonite liquid injection holes in the working pipe when every 80cm is jacked, thereby realizing the pipe jacking construction with the pipe jacking friction resistance reduced. The invention is applicable to the pipe jacking construction for drainage reconstruction of the old city, can decrease the working pits, protects the road surface of a larger area, improves the working efficiency, and lowers the construction cost.

Description

A kind of pipe jacking construction method of the resistance of reducing friction

Technical field

The present invention relates to a kind of underground pipeline construction method, a kind of pipe jacking construction method that adopts when particularly relating to a kind of old town drainage reconstruction.

Background technology

During the old town drainage reconstruction, underground obstacle is more, as the underground gas flue of having buried underground, cable, optical cable and heating pipe etc., makes the old town drainage reconstruction be difficult for adopting big opening construction method because on the ground,, usually adopt pipe jacking construction method, be beneficial to avoid underground or above-ground structures.But because resistance is very big, need top power big during push pipe, and apex distance is short, generally at 20-30m.Lay smoothly for finishing drainage pipe, need to lay a lot of working pits, working pit is too much, just need abolish too much road surface, has increased backfill and has recovered the road surface amount, thereby improved construction costs, prolongs the duration, has increased difficulty for the comprehensive regulation of old town.

Summary of the invention

Purpose of the present invention provides a kind of pipe jacking construction method that reduces frictional resistance, has reduced top power, increased apex distance from, reduced the road surface breakage area, reduced construction costs.

The technical scheme that adopts is:

A kind of pipe jacking construction method of the resistance of reducing friction comprises following processing step:

1, have one group on the pipe cap wall with the upside of the pipe cap (the pipe cap diameter is greater than the instrumentation tubes diameter) of instrumentation tubes and and arranged on left and right sides and annotate the sand-fixating agent liquid pores, every group is annotated the sand-fixating agent liquid pores is 3~5; On left and right, the upper and lower tube wall at every joint instrumentation tubes middle part, be furnished with one and annotate the bentonite slurry hole.

2, sand-fixating agent is put into container, add the water of 1.5~2.5 times of amounts of sand-fixating agent, mix, make sand-fixating agent liquid standby (solidifying preparation during on-the-spot the use for preventing sand-fixating agent), sand-fixating agent is the known available product;

3, in the weight ratio swell soil: water: caustic soda: CMC=100: 270~330: 1.2~1.7: 0.6~0.8 charge ratio, it is standby to prepare swell soil liquid; Wherein CMC is a carboxymethyl cellulose.

4, by the working design route, adopt known pipe jacking construction method to carry out jacking construction, push pipe uses jack, during push pipe, start air compressor machine,, the sand-fixating agent liquid for preparing is injected the pipe cap outer wall simultaneously from three groups of notes sand-fixating agent liquid pores on the pipe cap of instrumentation tubes by slurry filling machine, to manage outer soil property and fix, form sand-fixating agent from arch.During the every jacking 40-60cm of instrumentation tubes, notes sand-fixating agent liquid pores electricity consumption on the pipe cap upper side wall of instrumentation tubes to be drilled through, inject sand-fixating agent, every jacking 80-100cm, notes sand-fixating agent liquid pores electricity consumption on the pipe cap two side of instrumentation tubes to be drilled through, inject sand-fixating agent.Above-mentioned air compressor machine operating pressure is 0.4~0.6MPa.

5, in the instrumentation tubes jack-in process, the bentonite slurry for preparing is injected in the bentonite slurry holes on 1, the 2 and 3 joint instrumentation tubes of jacking direction with grouting pump during every jacking 80cm, make the space of sand-fixating agent between encircleing of instrumentation tubes outer wall and formation be full of swell soil; When each pipe joint enters the hole, the bentonite slurry hole of whole jacking pipeline instrumentation tubes is all carried out the injection of bentonite slurry.

The stratum is big to tube wall frictional force in the jacking construction process, causes very big difficulty for top worker's construction, injects swell soil, have certain lubrication, to contact coefficient of friction little with tube wall, therefore reduced resistance, help the old liberated area drainage reconstruction, reduce construction cost, improved operating efficiency.

Description of drawings

Fig. 1 is the instrumentation tubes structural representation.

1 instrumentation tubes, 2 is annotated the bentonite slurry hole, 3 pipe caps, 4 are annotated the sand-fixating agent liquid pores

The specific embodiment

A kind of pipe jacking construction method of the resistance of reducing friction comprises following processing step:

1, leaves the notes bentonite slurry hole 2 of Φ 8cm on the left and right tube wall up and down with instrumentation tubes 1 respectively, leave the notes sand-fixating agent liquid pores 4 of three groups of Φ 2cm on upside tube wall, left side tube wall and the right side tube wall with pipe cap 3 respectively;

2, by sand-fixating agent: it is standby that the weight ratio of water=1: 2 makes sand-fixating agent liquid;

3, by swell soil: water: caustic soda: CMC=100: it is standby that 300: 1.5: 0.7 weight ratio makes swell soil liquid;

4, press design drawing, adopt known pipe jacking construction method to carry out jacking construction, work pipe range 2.5m uses four 400 tons of jack to carry out push pipe;

Start air compressor machine during jacking construction,,, annotate sand-fixating agent liquid pores 4 by three groups on the pipe cap 3 and inject between pipe cap 3 outer walls and the soil layer, make to form sand-fixating agent between instrumentation tubes 1 and the soil layer from arch with the above-mentioned sand-fixating agent liquid for preparing by slurry filling machine; During the every jacking 40-60cm of instrumentation tubes, notes sand-fixating agent liquid pores 4 electricity consumptions on the upper side wall of the pipe cap 3 of instrumentation tubes 1 to be drilled through, inject sand-fixating agent, during instrumentation tubes jacking 40-60cm, notes sand-fixating agent liquid pores electricity consumption on the left and right sidewall of the pipe cap 3 of instrumentation tubes 1 is drilled through, inject sand-fixating agent; The air compressor machine operating pressure is 0.5Mpa;

5, in instrumentation tubes 1 jack-in process, every jacking 80cm injects the swell soil liquid for preparing in the tube wall and the gap of sand-fixating agent between encircleing of instrumentation tubes 1 from the notes bentonite slurry hole 2 on the instrumentation tubes 1 preceding three-joint pipe with grouting pump, in the time of in each saves the whole jackings of instrumentation tubes hole, with grouting pump the swell soil liquid for preparing is injected in the tube wall and the gap of sand-fixating agent between encircleing of instrumentation tubes 1 from the notes bentonite slurry hole 2 of whole pipe, finish the jacking construction that reduces push pipe frictional resistance.

Claims (1)

1. the pipe jacking construction method of the resistance of reducing friction is characterized in that comprising following processing step:
1) leaves respectively on left and right, the upper and lower tube wall with the middle part of instrumentation tubes (1) and annotate bentonite slurry hole (2), on upside tube wall, left side tube wall and the right side tube wall of the pipe cap (3) of instrumentation tubes (1), leave 3-5 notes sand-fixating agent liquid pores (4) respectively;
2) by sand-fixating agent: it is standby that the weight ratio of water=1: 1.5~2.5 makes sand-fixating agent liquid;
3) by swell soil: water: caustic soda: CMC=100: 270~330: 1.2~1.7: it is standby that 0.6~0.8 weight ratio makes swell soil liquid;
4) press design drawing, adopt known pipe jacking construction method to carry out jacking construction, start air compressor machine during jacking construction, pass through grouting pump, with the above-mentioned sand-fixating agent liquid for preparing, annotate sand-fixating agent liquid pores (4) by three on the pipe cap (3) and inject between pipe cap (3) outer wall and the soil layer, make to form sand-fixating agent between instrumentation tubes (1) and the soil layer from arch; During the every jacking 40-60cm of instrumentation tubes, notes sand-fixating agent liquid pores (4) electricity consumption on the upper side wall of the pipe cap (3) of instrumentation tubes (1) to be drilled through, during instrumentation tubes jacking 40-60cm, the notes sand-fixating agent hole electricity consumption on the left and right sidewall of the pipe cap (3) of instrumentation tubes (1) is drilled through; The air compressor machine operating pressure is 0.4~0.6MPa;
5) in instrumentation tubes (1) jack-in process, every jacking 80cm injects the swell soil liquid for preparing in the tube wall and the gap of sand-fixating agent between encircleing of instrumentation tubes (1) from the notes bentonite slurry hole (2) on the instrumentation tubes (1) with grouting pump, finishes the jacking construction that reduces push pipe frictional resistance.
CN2010101210973A 2010-03-10 2010-03-10 Pipe jacking construction method capable of reducing friction resistance CN101806092B (en)

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CN2010101210973A CN101806092B (en) 2010-03-10 2010-03-10 Pipe jacking construction method capable of reducing friction resistance

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Application Number Priority Date Filing Date Title
CN2010101210973A CN101806092B (en) 2010-03-10 2010-03-10 Pipe jacking construction method capable of reducing friction resistance

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CN101806092A true CN101806092A (en) 2010-08-18
CN101806092B CN101806092B (en) 2012-04-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277898A (en) * 2011-04-28 2011-12-14 朱奎 Drain pipe jacking construction method
CN102606805A (en) * 2012-03-21 2012-07-25 苏州际能环境能源技术有限公司 Tube downing device with grouting function
CN103133766A (en) * 2011-11-29 2013-06-05 上海市基础工程有限公司 Over-length heavy caliber steel jacking pipe mud resistance reducing system
CN103696486A (en) * 2013-12-13 2014-04-02 柳州市五环水暖器材经营部 Method for replacing sewage conduits
CN104265326A (en) * 2014-08-06 2015-01-07 上海隧道工程有限公司 Method for controlling soil deformation in large rectangular pipe jacking
CN109798396A (en) * 2019-02-28 2019-05-24 青岛瑞源工程集团有限公司 A kind of artificial jacking technique of the long-distance large-caliber pipe of concrete of bad ground
CN111549885A (en) * 2020-05-15 2020-08-18 矿冶科技集团有限公司 Pipe head, and immersed pipe construction device and method in fine grain tailing pond

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85102951A (en) * 1985-04-18 1986-10-15 株式会社堰坝开发工业 Pipe propelling device
US5779948A (en) * 1996-03-11 1998-07-14 Perkins, Deceased; Alfred G. Method of lining a pipeline using a constant extrusion pressure
CN101057099A (en) * 2004-10-14 2007-10-17 曼弗雷德·劳舍尔 Method for operating a sheeting machine for laying pipes, and sheeting machine
CN100545362C (en) * 2005-12-30 2009-09-30 四川大学 City underground integral drainpipe construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85102951A (en) * 1985-04-18 1986-10-15 株式会社堰坝开发工业 Pipe propelling device
US5779948A (en) * 1996-03-11 1998-07-14 Perkins, Deceased; Alfred G. Method of lining a pipeline using a constant extrusion pressure
CN101057099A (en) * 2004-10-14 2007-10-17 曼弗雷德·劳舍尔 Method for operating a sheeting machine for laying pipes, and sheeting machine
CN100545362C (en) * 2005-12-30 2009-09-30 四川大学 City underground integral drainpipe construction method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277898A (en) * 2011-04-28 2011-12-14 朱奎 Drain pipe jacking construction method
CN102277898B (en) * 2011-04-28 2013-08-07 温州市金誉建设监理有限公司 Drain pipe jacking construction method
CN103133766A (en) * 2011-11-29 2013-06-05 上海市基础工程有限公司 Over-length heavy caliber steel jacking pipe mud resistance reducing system
CN102606805A (en) * 2012-03-21 2012-07-25 苏州际能环境能源技术有限公司 Tube downing device with grouting function
CN103696486A (en) * 2013-12-13 2014-04-02 柳州市五环水暖器材经营部 Method for replacing sewage conduits
CN104265326A (en) * 2014-08-06 2015-01-07 上海隧道工程有限公司 Method for controlling soil deformation in large rectangular pipe jacking
CN104265326B (en) * 2014-08-06 2016-04-27 上海隧道工程有限公司 A kind of method controlling large-scale rectangular push pipe driving soil deformation
CN109798396A (en) * 2019-02-28 2019-05-24 青岛瑞源工程集团有限公司 A kind of artificial jacking technique of the long-distance large-caliber pipe of concrete of bad ground
CN111549885A (en) * 2020-05-15 2020-08-18 矿冶科技集团有限公司 Pipe head, and immersed pipe construction device and method in fine grain tailing pond

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