CN107090833B - A kind of filter-press type provisions for grouting and its grouting method for broken ground - Google Patents
A kind of filter-press type provisions for grouting and its grouting method for broken ground Download PDFInfo
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- CN107090833B CN107090833B CN201710343884.4A CN201710343884A CN107090833B CN 107090833 B CN107090833 B CN 107090833B CN 201710343884 A CN201710343884 A CN 201710343884A CN 107090833 B CN107090833 B CN 107090833B
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- grouting
- pipe
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- floral tube
- tube
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses the filter-press type provisions for grouting and grouting method for broken ground.Device includes thin pulp pulp-inlet pipe, floral tube, reducing collapsible tube, sleeve pipe and thick slurry pipe, the tube wall of floral tube is provided with multiple pipe shaft holes, floral tube is equipped with the filter layer for covering whole pipe shaft holes, thin pulp pulp-inlet pipe is connected with floral tube upper end, the bigger diameter end of reducing collapsible tube is connected with floral tube lower end, the miner diameter end of reducing collapsible tube is connected with thick slurry pipe, and sleeve pipe is sheathed on outside floral tube, and its lower end shrinks duct occlusion with reducing and is connected.Method includes：S1：Prepare grouting material；S2：Thick slurry pipe is put into grout hole, lower termination grout pipe to bottom hole；S3：The cement grout of 0.5~0.8MPa pressure values is conveyed to floral tube by thin pulp pulp-inlet pipe, congestion effect is formed in reducing collapsible tube and plays pressure, filter layer filters out moisture, thin pulp is changed into thick slurry in device, and the moisture filtered out is discharged by drainpipe；S4：Thin pulp is changed into thick slurry in device, and increase pressure is to 1~2MPa, then is pressed into stratum.
Description
Technical field
The present invention relates to the provisions for grouting in the fields such as hydraulic engineering, basement process, more particularly to one kind to be used for broken ground
Filter-press type provisions for grouting and grouting method.
Background technology
Broken ground and the larger usual springy texture in stratum of water content, cementing properties is weak, plasma volume is big, slurries diffusion process
In grouting effect influenceed due to underground water isolation, grouting is difficult to play pressure, easily cause it is vertical lift destructions, be in the milk and be difficult to control, because
Create broken face and repeat cleavage effect, slurries easily along the strong aspect of concrete castability or minimum principal stress face grout leaking, running pulp, prolong in individual layer folder cake
Stretch, make mostly slabbing gap effectively cannot uniformly irrigate, anti-seepage effect is extremely difficult to design requirement, now to soft
Generally existing following problem during layer grouting：
1st, the range of scatter of slurries is difficult to be controlled, extremely serious the problems such as running pulp, grout leaking；
2nd, special only slurry measure is needed mostly, is constructed complicated；
3rd, stratum is soft has been difficult to pressure, and controlled grouting difficulty is big, cannot get good grouting effect；
When thick slurry the 4th, is directly filled to broken ground, because the pumpability of thick slurry is poor, so requiring higher to construction appliance, apply
The increase of work difficulty, and cost is higher.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided one kind is simple in construction, can make thin pulp
It is changed into thick slurry, the effectively diffusion of control slurries, a good, easy for construction filter-press type for broken ground of pressure effect in device
Provisions for grouting and grouting method.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of filter-press type provisions for grouting for broken ground, including thin pulp pulp-inlet pipe, floral tube, reducing collapsible tube, sleeve pipe
With thick slurry pipe, the tube wall of the floral tube is provided with multiple pipe shaft holes, and floral tube is equipped with the filter layer for covering whole pipe shaft holes, described
Thin pulp pulp-inlet pipe is connected with floral tube upper end, and the bigger diameter end of the reducing collapsible tube is connected with floral tube lower end, the reducing collapsible tube
Miner diameter end be connected with thick slurry pipe, described sleeve pipe is sheathed on outside floral tube, and its lower end and reducing shrink duct occlusion and be connected.
Further improvement as above-mentioned technical proposal：
Described sleeve pipe is provided with drainpipe.
The drainpipe is provided with two.
One end that the thin pulp pulp-inlet pipe is connected with floral tube is provided with the reducer union with floral tube mating.
Described sleeve pipe upper end is provided with orifice closure.
The bigger diameter end internal diameter of the reducing collapsible tube is 3 ~ 4 times of miner diameter end internal diameter.
The filter layer is coated on the outside of floral tube, and is fixed by clip and floral tube.
The filter layer is made up of multilayer industrial filter cloth.
The industrial filter cloth is the mesh industrial filter cloth of 400 mesh~600.
The technical concept total as one, the present invention also provide a kind of side being in the milk with above-mentioned filter-press type provisions for grouting
Method, specifically include following construction procedure：
S1：Prepare grouting material, the cement grout to design the ratio of mud is used as grouting material；
S2：Thick slurry pipe in the filter-press type provisions for grouting is put into grout hole completely, its lower termination grout pipe to bottom hole；
S3：Start to be in the milk using grouting way from bottom to top, the thin pulp first passed through in the filter-press type provisions for grouting enters
The cement grout that pipe conveys 0.5~0.8MPa pressure values to its floral tube is starched, makes it in the reducing collapsible tube of filter-press type provisions for grouting
Form congestion effect and play pressure, moisture is filtered out by filter layer, the thin pulp in floral tube 2 is changed into thick slurry in device, is filtered out
Moisture discharged by drainpipe；
S4：After thin pulp is changed into thick slurry in device, thick slurry is pressed into by increase pressure to 1~2MPa, then by thick slurry pipe
Stratum.
Compared with prior art, the advantage of the invention is that：
The filter-press type provisions for grouting for broken ground of the present invention, thin pulp is inputted to floral tube by thin pulp pulp-inlet pipe, it is dilute
Slurry forms congestion effect in reducing collapsible tube and plays pressure, filters out moisture by filter layer, thin pulp is changed into thick slurry in device,
Thick slurry is pressed into by stratum by thick slurry pipe again, so as to reduce the pressure loss in pipeline, the range of scatter of controlled grouting, obtained good
Good grouting effect, and thick slurry auto-stopping is starched, and stops sizing device without special sealing of hole；The press filtration for broken ground of the present invention
Formula provisions for grouting is simple and easy to broken ground implementation controlled grouting, improves efficiency of construction, greatly reduces labor intensity.
Brief description of the drawings
Fig. 1 is the structural representation for the filter-press type provisions for grouting embodiment that the present invention is used for broken ground.
Fig. 2 is the vertical section schematic diagram for the filter-press type provisions for grouting embodiment that the present invention is used for broken ground.
Fig. 3 is the vertical section signal that the present invention is used for floral tube and reducing collapsible tube in the filter-press type provisions for grouting of broken ground
Figure.
Fig. 4 is the grouting schematic diagram for the filter-press type provisions for grouting that the present invention is used for broken ground.
Marginal data：
1st, thin pulp pulp-inlet pipe；11st, reducer union；2nd, floral tube；21st, pipe shaft hole；22nd, filter layer；3rd, reducing collapsible tube；4th, cover
Pipe；41st, drainpipe；42nd, orifice closure；5th, thick slurry pipe.
Embodiment
For the ease of understanding the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
As shown in Figures 1 to 4, the filter-press type provisions for grouting for broken ground of the present embodiment, including thin pulp pulp-inlet pipe
1st, floral tube 2, reducing collapsible tube 3, sleeve pipe 4 and thick slurry pipe 5, the tube wall of floral tube 2 are provided with multiple pipe shaft holes 21, and floral tube 2 is equipped
The filter layer 22 in whole pipe shaft holes 21 is covered, thin pulp pulp-inlet pipe 1 is connected with the upper end of floral tube 2 by reducer union 11, and reducing shrinks
The bigger diameter end of pipe 3 is connected with the lower end of floral tube 2, and the miner diameter end of reducing collapsible tube 3 is connected with thick slurry pipe 5, and sleeve pipe 4 is sheathed on floral tube 2
Outside, the lower end of sleeve pipe 4 connects with the closing of reducing collapsible tube 3, and the lower end of thick slurry pipe 5 can connect other drilling rods or grout pipe.During grouting, pass through
Thin pulp pulp-inlet pipe 1 inputs thin pulp to floral tube 2, and thin pulp forms congestion effect in reducing collapsible tube 3 and plays pressure, filtered by filter layer 22
Go out moisture, thin pulp is changed into thick slurry in device, then thick slurry is pressed into by stratum by thick slurry pipe 5, so as to reduce in pipeline
The pressure loss, the range of scatter of controlled grouting, good grouting effect is obtained, and the thick slurry in device after transformation is difficult to along pipe
Interporal lacuna is emerged, and is played a part of automatic hole sealing and is only starched, stops sizing device without special sealing of hole；The present invention's is used for broken ground
Filter-press type provisions for grouting to broken ground implement controlled grouting it is simple and easy, improve efficiency of construction, greatly reduce work
Intensity, and simple in construction, low manufacture cost.
In the present embodiment, sleeve pipe 4 is provided with two drainpipes 41, and two drainpipes 41 are one high and one low, is arranged above and below point, and
Two drainpipes 41 are provided with orifice closure 42 close to the upper end of sleeve pipe 4, the upper end of sleeve pipe 4, another when a drainpipe 41 blocks
Drainpipe 41 can continue draining, and the drainpipe 41 of blocking can be dredged simultaneously.The bigger diameter end internal diameter of reducing collapsible tube 3 is small
3 ~ 4 times of footpath end internal diameter, in the present embodiment, bigger diameter end internal diameter is 44mm, and miner diameter end internal diameter is 11mm, and bigger diameter end internal diameter is path
Hold internal diameter 2 times, congestion effect was both conveniently formed and had played pressure, and be also unlikely to excessively congestion and form blocking.Filter layer 22 coats
In the outside of floral tube 2, whole pipe shaft holes 21 are covered, and are fixed by clip and floral tube 2, in the present embodiment, filter layer 22 is by 6 layers of work
Industry filter cloth forms, and industrial filter cloth is 500 mesh industrial filter cloths, thickness 1mm.
The filter-press type provisions for grouting for broken ground of the present embodiment, when carrying out cementing operations, Specific construction step
It is as follows：
S1：Prepare grouting material, using the ratio of mud as 1：1 cement grout is grouting material；
S2：Thick slurry pipe 5 in the filter-press type provisions for grouting for broken ground that the present embodiment is provided is put into filling completely
Hole is starched, its lower end can connect grout pipe to bottom hole；
S3：Start to be in the milk using grouting way from bottom to top, first pass through thin pulp pulp-inlet pipe 1 to floral tube 2 conveying 0.5~
The cement grout of 0.8MPa pressure values, it is formed congestion effect in reducing collapsible tube 3 and is played pressure, water is filtered out by filter layer 22
Point, the thin pulp in floral tube 2 is changed into thick slurry in device, the moisture filtered out is discharged by drainpipe 41；
S4：After thin pulp is changed into thick slurry in device, thick slurry is pressed into by increase pressure to 1~2MPa, then by thick slurry pipe 5
Stratum.
By above construction procedure, simulation 1m hole depths broken ground carries out grouting experiment, and each parameter in implementation process is as follows；
The ratio of mud is 1：1；Maximum grouting pressure is 2Mpa；The proportion for pouring into cement grout is 1.512；The quality for pouring into cement grout is
25kg；The quality for filtering out water is 5.2kg.Occur in whole filling process without phenomena such as string, grout, calculus rate is high after filling, calculus
The diffusion of slurry arteries and veins is uniform in vivo, and grouting effect is good.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.To those of ordinary skill in the art, the improvement and change resulting in the case where not departing from the technology of the present invention concept thereof
Change and also should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. filter-press type provisions for grouting for broken ground, it is characterised in that：Including thin pulp pulp-inlet pipe（1）, floral tube（2）、 Reducing collapsible tube（3）, sleeve pipe（4）With thick slurry pipe（5）, the floral tube（2）Tube wall be provided with multiple pipe shaft holes（21）, floral tube （2）It is equipped with the whole pipe shaft holes of covering（21）Filter layer（22）, the thin pulp pulp-inlet pipe（1）With floral tube（2）Upper end connects, institute State reducing collapsible tube（3）Bigger diameter end and floral tube（2）Lower end connects, the reducing collapsible tube（3）Miner diameter end and thick slurry pipe（5） Connection, described sleeve pipe（4）It is sheathed on floral tube（2）Outside, sleeve pipe（4）Lower end and reducing collapsible tube（3）Closing connection, described sleeve pipe （4）It is provided with drainpipe（41）.
- 2. the filter-press type provisions for grouting according to claim 1 for broken ground, it is characterised in that：The drainpipe （41）Provided with two.
- 3. the filter-press type provisions for grouting according to claim 1 for broken ground, it is characterised in that：The thin pulp enters slurry Pipe（1）With floral tube（2）One end of connection is provided with and floral tube（2）The reducer union of mating（11）.
- 4. the filter-press type provisions for grouting according to claim 1 for broken ground, it is characterised in that：Described sleeve pipe（4） Upper end is provided with orifice closure（42）.
- 5. the filter-press type provisions for grouting according to claim 1 for broken ground, it is characterised in that：The reducing shrinks Pipe（3）Bigger diameter end internal diameter be 3 ~ 4 times of miner diameter end internal diameter.
- 6. the filter-press type provisions for grouting according to any one of claim 1 to 5 for broken ground, it is characterised in that： The filter layer（22）It is coated on floral tube（2）Outside, and pass through clip and floral tube（2）It is fixed.
- 7. the filter-press type provisions for grouting according to claim 6 for broken ground, it is characterised in that：The filter layer （22）It is made up of multilayer industrial filter cloth.
- 8. the filter-press type provisions for grouting according to claim 7 for broken ground, it is characterised in that：The industrial filter cloth For the mesh industrial filter cloth of 400 mesh ~ 600.
- 9. a kind of method that filter-press type provisions for grouting any one of claim 1-8 is in the milk, it is characterised in that tool Body includes following construction procedure：S1：Prepare grouting material, the cement grout to design the ratio of mud is used as grouting material；S2：By the thick slurry pipe in the filter-press type provisions for grouting（5）Grout hole is put into completely, its lower termination grout pipe to bottom hole；S3：Start to be in the milk using grouting way from bottom to top, first pass through the thin pulp pulp-inlet pipe in the filter-press type provisions for grouting （1）To its floral tube（2）The cement grout of 0.5~0.8MPa pressure values is conveyed, it is shunk in the reducing of filter-press type provisions for grouting Pipe（3）Form congestion effect and play pressure, pass through filter layer（22）Moisture is filtered out, makes floral tube（2）Interior thin pulp changes in device For thick slurry, the moisture filtered out passes through drainpipe（41）Discharge；S4：After thin pulp is changed into thick slurry in device, increase pressure is to 1~2MPa, then passes through thick slurry pipe（5）Thick slurry is pressed into ground Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343884.4A CN107090833B (en) | 2017-05-16 | 2017-05-16 | A kind of filter-press type provisions for grouting and its grouting method for broken ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343884.4A CN107090833B (en) | 2017-05-16 | 2017-05-16 | A kind of filter-press type provisions for grouting and its grouting method for broken ground |
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| Publication Number | Publication Date |
|---|---|
| CN107090833A CN107090833A (en) | 2017-08-25 |
| CN107090833B true CN107090833B (en) | 2018-03-09 |
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| CN201710343884.4A Active CN107090833B (en) | 2017-05-16 | 2017-05-16 | A kind of filter-press type provisions for grouting and its grouting method for broken ground |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1150444A (en) * | 1997-08-05 | 1999-02-23 | Tokuyama Corp | Grout for underwater ground improvement and underwater ground improvement method lising the same |
| JP2005256537A (en) * | 2004-03-15 | 2005-09-22 | Port & Airport Research Institute | Method of reinforcing underwater foundation aggregate structure |
| CN101338563A (en) * | 2008-08-27 | 2009-01-07 | 中国水利水电第八工程局有限公司 | Sleeve grouting method and grouting device thereof |
| CN202273229U (en) * | 2011-10-11 | 2012-06-13 | 董庆民 | Pile end slurry injecting and pressing device |
| CN202509499U (en) * | 2012-04-01 | 2012-10-31 | 葛洲坝集团基础工程有限公司 | Embedded floral tube wall-protection grouting device |
| CN102787602A (en) * | 2012-08-31 | 2012-11-21 | 中国水利水电第七工程局成都水电建设工程有限公司 | Curtain grouting technique |
| CN103774683A (en) * | 2014-02-25 | 2014-05-07 | 河海大学 | Filter pressing type orifice sealer |
-
2017
- 2017-05-16 CN CN201710343884.4A patent/CN107090833B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1150444A (en) * | 1997-08-05 | 1999-02-23 | Tokuyama Corp | Grout for underwater ground improvement and underwater ground improvement method lising the same |
| JP2005256537A (en) * | 2004-03-15 | 2005-09-22 | Port & Airport Research Institute | Method of reinforcing underwater foundation aggregate structure |
| CN101338563A (en) * | 2008-08-27 | 2009-01-07 | 中国水利水电第八工程局有限公司 | Sleeve grouting method and grouting device thereof |
| CN202273229U (en) * | 2011-10-11 | 2012-06-13 | 董庆民 | Pile end slurry injecting and pressing device |
| CN202509499U (en) * | 2012-04-01 | 2012-10-31 | 葛洲坝集团基础工程有限公司 | Embedded floral tube wall-protection grouting device |
| CN102787602A (en) * | 2012-08-31 | 2012-11-21 | 中国水利水电第七工程局成都水电建设工程有限公司 | Curtain grouting technique |
| CN103774683A (en) * | 2014-02-25 | 2014-05-07 | 河海大学 | Filter pressing type orifice sealer |
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| Publication number | Publication date |
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| CN107090833A (en) | 2017-08-25 |
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