CN101644049B - Slurry injection technique of double-valve sleeve valve tube of cloth bag - Google Patents
Slurry injection technique of double-valve sleeve valve tube of cloth bag Download PDFInfo
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- CN101644049B CN101644049B CN2009100399449A CN200910039944A CN101644049B CN 101644049 B CN101644049 B CN 101644049B CN 2009100399449 A CN2009100399449 A CN 2009100399449A CN 200910039944 A CN200910039944 A CN 200910039944A CN 101644049 B CN101644049 B CN 101644049B
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Abstract
The invention relates to a slurry injection technique of a double-valve sleeve valve tube of a cloth bag. For overcoming the defect of the slurry injection technique of a sleeve valve tube, a cloth bag made of geotextile is sleeved on a sleeve valve tube and is firmly bound on the sleeve valve tube at the interval of 1.5-2 m by plastic buckles; mechanical equipment is used for drilling holes to the design depth; the made double-valve sleeve valve tube of the cloth bag is installed; slurry is injected in segments from top to bottom; after each slurry injection segment reaches the designed slurry injection pressure, the plastic buckles can be automatically opened; and meanwhile, one to two plastic drainage plates are arranged outside the cloth bag, thereby eliminating partial water in slurry liquid, dissipating the super-static pore water pressure of injection slurry in a foundation and reducing the soil squeezing effect. The double-valve tube is used for directly injecting slurry, does not need sleeve shell material, is not easy to leak slurry and is easy to form a column body.
Description
Technical field
The present invention relates to a kind of soft foundation grouting strengthening method, particularly a kind of double-valve sleeve valve tube of cloth bag grouting method is on the slurry injection technique of sleeve valve tube basis, to innovate to form, and belongs to ground and basic engineering construction technical field.
Background technology
Slurry injection technique of sleeve valve tube is widely used among the engineerings such as pit curtain, ground and Ba Qu reinforcing, and conventional sleeve method pipe slurry injection technique construction technology is: boring → perfusion sleeve shell material → insertion sleeve valve pipe → sleeve shell material reaches segmenting slip casting behind the prescribed strength.
A large amount of engineering practices show that the slurries range of scatter of sleeve valve pipe slip casting is difficult to control, can not form continuous pile body usually, and are prone to race slurry phenomenon.The slurries that inject ground not only produce excess pore water pressure at ground, and have increased the foundation soil water content, and the soil compaction effect of slip casting is big, is unfavorable for base stabilization.Because the slip casting of sleeve valve pipe causes toe surface displacement 8～14cm, and maximum displacement is 11～16cm, several cracks appear in the slip casting middle and later periods on side slope like ground under certain side slope of embankment.Cause embankment retaining wall displacement 18～21cm when ground is tucked inside the sleeve the slip casting of valve pipe under another side slope of embankment, domatic chute is broken into 3～4 sections, maximum cracking 3cm.In addition, the slip casting of conventional sleeve valve pipe need be poured into sleeve shell material, and waits for that sleeve shell material solidifies and the gain in strength grouting behind shaft or drift lining, and the duration is longer.
Summary of the invention
The present invention is directed to the deficiency of slurry injection technique of sleeve valve tube; Providing a kind of can avoid running slurry, string slurry phenomenon and be beneficial to the slurry injection technique of double-valve sleeve valve tube of cloth bag that forms pile body; The cloth bag of this techniques make use plastics deduction of points section colligation can insert directly slip casting behind the sleeve valve pipe, need in boring, not pour into sleeve shell material.
In order to address the above problem, the technical scheme that the present invention adopts is:
A kind of double-valve sleeve valve tube of cloth bag grouting method, its technological process is following: making double-valve sleeve valve tube of cloth bag → hole to projected depth → installation double-valve sleeve valve tube of cloth bag → segmenting slip casting construction from bottom to top;
Making double-valve sleeve valve tube of cloth bag is cloth bag of cover on sleeve valve pipe, with the plastics button with cloth bag securely colligation on sleeve valve pipe, plastic draining board is pasted or is fixed on the cloth bag outside with additive method.
The above-mentioned double-valve sleeve valve tube of cloth bag of making is inserted boring, do not need sleeve shell material and direct segmenting slip casting.
Concrete construction technology process is following:
(1) make double-valve sleeve valve tube of cloth bag: employing geotextiles etc. is made and is tucked inside the sleeve the identical cloth bag of valve length of tube, and its volume is 0.6～0.9 times of grouting volume, and cloth bag tensile strength and suture strength should be greater than 15kN/m.Cloth bag is enclosed within on the sleeve valve pipe, and per 1.5～2m adopts the plastics button, and colligation is on sleeve valve pipe securely with cloth bag, and the plastics button must not be opened before reaching the design grouting pressure.On cloth bag, adopt and paste or fixing 1～2 band drain of additive method, band drain is symmetrical set in the time of 2.
(2) mortar depositing construction: utilize equipment such as geological drilling rig to bore the boring that a diameter is not less than 10cm, double-valve sleeve valve tube of cloth bag is inserted in the boring, utilize with the identical grouting equipment of valve pipe slip casting of tucking inside the sleeve and carry out slip casting, promptly adopt the slip casting rifle to carry out slip casting.Be a slip casting section between two adjacent plastics buttons.Slip casting begins from foot of hole, and slurries get in the cloth bag through sleeve valve pipe, under the constraint of cloth bag, carry out densification, fracture grouting, and the slurries in the cloth bag reach behind the certain pressure plastics to be buckled automatically and open, and grouting pressure descends.Then, pull out the mortar depositing construction that the slip casting rifle carries out next slip casting section on.
Owing to have rubber valve and the plastics on the cloth bag on the sleeve valve pipe to buckle two kinds of valves among the present invention, therefore this slip casting sleeve valve pipe is called double-valve sleeve valve tube of cloth bag.
The present invention compared with prior art advantage is:
1, the plastic draining board in the cloth bag outside not only can be got rid of part moisture in the slurries, and the excess pore water pressure that in ground, produces of dissipation slip casting, thereby reduces soil compaction effect;
2, because the effect of contraction of cloth bag can not occur running slurry, spillage, be beneficial to the formation pile body;
3, the cloth bag of this techniques make use plastics deduction of points section colligation can insert directly slip casting behind the sleeve valve pipe, need in boring, not pour into sleeve shell material, and the engineering time shortens, and practices thrift cost.
Description of drawings
Fig. 1 is the double-valve sleeve valve tube of cloth bag elevational schematic view among the present invention;
Fig. 2 is a plastics buckle cross-sectional view;
Fig. 3 is non-plastics buckle cross-sectional view;
Among the figure: 1 plastic draining board, 2 cloth bags, 3 sleeve valve pipes, 4 rubber valves, 5 borings, 6 ground, 7 plastics are buckled.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details, these embodiment only are used for explaining the present invention, do not limit the scope of the invention.
(1) make double-valve sleeve valve tube of cloth bag: shown in the sketch map of Fig. 1, employing geotextiles etc. is made and is tucked inside the sleeve the identical cloth bag of valve length of tube, and its volume is 0.6～0.9 times of grouting volume, and cloth bag tensile strength and suture strength should be greater than 15kN/m.Cloth bag is enclosed within on the sleeve valve pipe, and per 1.5～2m adopts the plastics button, and colligation is on sleeve valve pipe securely with cloth, and the plastics button must not be opened before reaching the design grouting pressure.On cloth bag, adopt and paste or fixing 1～2 band drain of additive method, band drain is symmetrical set.
(2) mortar depositing construction: utilize equipment such as geological drilling rig to bore the boring that a diameter is not less than 10cm, the bivalve pipe is inserted in the boring, utilize with the identical grouting equipment of valve pipe slip casting of tucking inside the sleeve and carry out slip casting, promptly adopt the slip casting rifle to carry out slip casting.Be a slip casting section between two adjacent plastics buttons.Slip casting begins from foot of hole, and slurries get in the cloth bag through sleeve valve pipe, under the constraint of cloth bag, carry out densification, fracture grouting, and the slurries in the cloth bag reach behind the certain pressure plastics to be buckled automatically and open, and grouting pressure descends.Then, pull out the mortar depositing construction that the slip casting rifle carries out next slip casting section on.
Claims (2)
1. double-valve sleeve valve tube of cloth bag grouting method, it is characterized in that: its technological process is following: make double-valve sleeve valve tube of cloth bag → hole to projected depth → installations double-valve sleeve valve tube of cloth bag → segmenting slip casting is constructed from bottom to top;
Making bivalve sleeve valve pipe is the cloth bag that geotextiles of cover is made on sleeve valve pipe; With the plastics button with cloth bag securely colligation on sleeve valve pipe; Plastic draining board is pasted and fixed on the cloth bag outside, and the plastics button must not be opened before reaching the design grouting pressure, under the constraint of cloth bag; Carry out densification, fracture grouting, the slurries in the cloth bag reach behind the certain pressure plastics and buckle automatically and open;
The above-mentioned double-valve sleeve valve tube of cloth bag of making is inserted boring, do not need sleeve shell material and direct segmenting slip casting.
2. double-valve sleeve valve tube of cloth bag grouting method according to claim 1 is characterized in that: 1～2 plastic draining board of described cloth bag arranged outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100399449A CN101644049B (en) | 2009-06-03 | 2009-06-03 | Slurry injection technique of double-valve sleeve valve tube of cloth bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100399449A CN101644049B (en) | 2009-06-03 | 2009-06-03 | Slurry injection technique of double-valve sleeve valve tube of cloth bag |
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| Publication Number | Publication Date |
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| CN101644049A CN101644049A (en) | 2010-02-10 |
| CN101644049B true CN101644049B (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100399449A Active CN101644049B (en) | 2009-06-03 | 2009-06-03 | Slurry injection technique of double-valve sleeve valve tube of cloth bag |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444118A (en) * | 2010-10-15 | 2012-05-09 | 中铁五局（集团）有限公司 | Construction method for grouting reinforcement of sleeve valve pipe |
| CN102003189A (en) * | 2010-12-20 | 2011-04-06 | 中铁隧道集团有限公司 | Mold bag grouting method and device for quickly and uniformly reinforcing soft stratum |
| CN104711987B (en) * | 2015-03-16 | 2016-04-27 | 中国水电基础局有限公司 | A kind of deep covering layer sleeving valve tube method controllable grouting method |
| CN104711986B (en) * | 2015-03-16 | 2016-04-27 | 中国水电基础局有限公司 | A kind of method for filling of deep covering layer sheath body slurry |
| CN104695441B (en) * | 2015-03-16 | 2016-04-27 | 中国水电基础局有限公司 | A kind of deep covering layer two-shot grouting method |
| CN104790982B (en) * | 2015-04-09 | 2018-08-14 | 深圳市永鑫建筑工程集团有限公司 | A kind of bored tunnel superdeep holes grouting sleeve shell material |
| CN107524455A (en) * | 2017-08-01 | 2017-12-29 | 中国电建集团华东勘测设计研究院有限公司 | Multistage densification formula mini-valve tube and its grouting method |
| CN110644461A (en) * | 2019-09-30 | 2020-01-03 | 上海隆基建设股份有限公司 | Foundation treatment method |
| CN110820732A (en) * | 2019-10-31 | 2020-02-21 | 广西大学 | Cast-in-situ bored pile suitable for karst area with connectivity channel and pile forming method |
| CN113047264A (en) * | 2021-03-16 | 2021-06-29 | 中国地质大学（武汉） | Air bag hole sealing type cloth bag grouting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005314938A (en) * | 2004-04-28 | 2005-11-10 | Kyokado Eng Co Ltd | Chemical grouting device and ground reinforcing method |
| CN101126238A (en) * | 2007-09-10 | 2008-02-20 | 铁道第四勘察设计院 | Cloth bag grouting pile-forming method |
| CN201099859Y (en) * | 2007-10-16 | 2008-08-13 | 中国京冶工程技术有限公司 | Multi-segment pocket type squeezing -type anchor rod |
-
2009
- 2009-06-03 CN CN2009100399449A patent/CN101644049B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005314938A (en) * | 2004-04-28 | 2005-11-10 | Kyokado Eng Co Ltd | Chemical grouting device and ground reinforcing method |
| CN101126238A (en) * | 2007-09-10 | 2008-02-20 | 铁道第四勘察设计院 | Cloth bag grouting pile-forming method |
| CN201099859Y (en) * | 2007-10-16 | 2008-08-13 | 中国京冶工程技术有限公司 | Multi-segment pocket type squeezing -type anchor rod |
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| CN101644049A (en) | 2010-02-10 |
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Effective date of registration: 20160505 Address after: 519070 Guangdong city in Zhuhai Province before the mountain Verde Street No. 189 Patentee after: China iron Jian Ganghangju Group Co.,Ltd Address before: 118 No. 511442 Guangdong province Guangzhou City Southern towns Panyu District Hungnam Avenue Patentee before: Guangdong Hangsheng Construction Group Co., Ltd. |