CN107268567A - The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method - Google Patents
The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method Download PDFInfo
- Publication number
- CN107268567A CN107268567A CN201710367117.7A CN201710367117A CN107268567A CN 107268567 A CN107268567 A CN 107268567A CN 201710367117 A CN201710367117 A CN 201710367117A CN 107268567 A CN107268567 A CN 107268567A
- Authority
- CN
- China
- Prior art keywords
- fluid injection
- supercharging
- horizontal
- capsule
- equipment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 146
- 239000007924 injection Substances 0.000 title claims abstract description 146
- 239000012530 fluid Substances 0.000 title claims abstract description 139
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 10
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 239000002775 capsule Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000013536 elastomeric material Substances 0.000 claims abstract description 3
- 239000002689 soil Substances 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 16
- 238000005086 pumping Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 238000007569 slipcasting Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007596 consolidation process Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 210000002966 serum Anatomy 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- 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
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer 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
Joint grouting and reinforcing super soft ground processing method is pressurized the present invention relates to a kind of vacuum bellows fluid injection, the equipment used includes drainage system and fluid injection pressure charging system, and fluid injection pressure charging system includes fluid injection supercharging capsule 10, horizontal fluid injection supercharging branch pipe 6, Water filling valve 4, three-way connection, horizontal fluid injection supercharging supervisor 13 and fluid injection supercharging equipment 1.Fluid injection supercharging capsule 10 is made up of the elastomeric material that can transmit fluid pressure, the top of fluid injection supercharging capsule 10 is provided with fluid injection seal 5, top both sides are communicated with water injection pipe 11, and horizontal fluid injection supercharging branch pipe 6 is connected to by water injection pipe 11, Water filling valve 4 is provided with horizontal fluid injection supercharging branch pipe 6, vertical drainage plate 9 is distributed in the periphery that fluid injection is pressurized capsule 10；Processing method is as follows：1) arrangement of equipment is with connecting；2) vacuum liquid filling pressurization stages；3) grouting pile body formation stages.
Description
Technical field
The present invention provides a kind of in weak soil, super soft ground processing method, the vacuum preloading belonged in Geotechnical Engineering with it is multiple
Close ground joint processing technology.
Background technology
In the last few years, because land resources is in short supply, reclamation engineering receives increasing attention, vacuum method
As a kind of common method for processing foundation, it is widely applied in reclamation engineering.Conventional vacuum method is soft
Soil primary surface laying sand bedding course, sets plastic draining board or sand drain, then make itself and atmospheric isolation, diaphragm seal end with close membrane
Pile things on processing is carried out with soil, by being embedded in the drainage pipeline of sand bedding course, is evacuated using vavuum pump or other vacuum means,
Under negative pressure of vacuum effect, negative pressure is gradually formed in earth's surface sand bedding course and vertical drainage passage, while inside soil body leads to draining
Pressure differential is formed between road, bed course, under this differential pressure action, the pore water around drain bar in weak soil is constantly arranged by drainage channel
Go out, due to the dissipation of soil body Pore Pressure, effective stress increases therewith, and the soil body is gradually consolidated, and intensity also can be carried correspondingly
It is high.
As reclamation engineering is to " waters, particulate, efficiently " development, on the basis of traditional vacuum pre-press reinforcing processing
Various types of corrective measures and method are occurred in that, such as without the in line technique of soft soil foundation treatment of sand, air pressure splitting technique of soft soil foundation treatment, note
Gas supercharging technique of soft soil foundation treatment, electric osmose combined vacuum prestressing technology, preloading combined vacuum prestressing technology etc., these improved technologies exist
Certain effect is achieved in engineer applied.
Although improvement after vacuum preloading method can improve soil stabilization to a certain extent, still suffer from compared with
Many shortcomings：
1) for super soft ground, when carrying out consolidation process using vacuum preloading method, generally early stage displacement
It is larger, drainage effect substantially, to later stage drain bar near particulate mud plug drain bar, vacuum also declines therewith,
Cause later stage drainage rates to be decreased obviously, especially apart from drain bar remotely and deep layer the soil body do not obtain fully plus
Gu, this has had a strong impact on Foundation Treatment Effect.
Although 2) to improve vacuum to a certain extent pre- for the novel evacuated prestressing technology such as electric osmose combined vacuum prestressing technology
The drainage efficiency of pressure and then soil solidifying speed is accelerated, but this methods engineering cost is higher, is difficult to enter in Practical Project
Row is widely applied.
3) vacuum preloading is cleaved using air pressure and injecting gas boosting technique of soft soil foundation treatment carries out stiffening basic ground, in engineering
Found in practical application, however open close pressure inlet of crossing blasts air into soil, just can guarantee that stable draught head, once stop gas
Body is supplied, negative pressure of vacuum reduces, and drainage rates decline immediately, causes soil stabilization not good enough, especially deep ground earth
Consolidation process effect is not fully up to expectations.
The content of the invention
The purpose of the present invention is to overcome the above-mentioned of prior art not enough to be applied to weak soil, at super soft ground there is provided one kind
The novel evacuated ground preloading processing method of reason, the present invention, can not only using vacuum bellows fluid injection supercharging joint deep layer slip casting
Ensure that the steady pressure between drain bar and foundation soil is poor, improve vacuum preloading discharging consolidation speed, moreover it is possible to pass through later stage slip casting
Further improve soil strength.Technical scheme is as follows：
A kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground processing method, and the equipment used includes row
Water system and fluid injection pressure charging system, described drainage system include multiple vertical drainage plates 9, bowknot 8, horizontal branch 7,
Three-way connection 12, transverse drainage supervisor 14 and vaccum-pumping equipment 2, wherein vertical drainage plate 9 pass through bowknot 8 and transverse drainage branch
Pipe 7 is connected and connected, and horizontal branch 14 is connected further through three-way connection 12 with transverse drainage supervisor 14, transverse drainage supervisor
14 finally connect with vaccum-pumping equipment 2；Described fluid injection pressure charging system include fluid injection supercharging capsule 10, horizontal fluid injection supercharging branch pipe 6,
Water filling valve 4, three-way connection, horizontal fluid injection supercharging supervisor 13 and fluid injection supercharging equipment 1, wherein, the fluid injection supercharging capsule 10 by
The elastomeric material that fluid pressure can be transmitted is made, and the top of fluid injection supercharging capsule 10 is provided with fluid injection seal 5, and top both sides connect
Water injection pipe 11 is connected with, and horizontal fluid injection is connected to by water injection pipe 11 and is pressurized branch pipe 6, is set on horizontal fluid injection supercharging branch pipe 6
There is Water filling valve 4, each horizontal fluid injection supercharging branch pipe 6 is by passing through horizontal fluid injection supercharging supervisor 13 and the phase of fluid injection supercharging equipment 1
UNICOM, vertical drainage plate 9 is distributed in the periphery that fluid injection is pressurized capsule 10；
Described method for processing foundation, comprises the following steps:
1) arrangement of equipment is with connecting：One layer of woven cloth is laid in weak soil or the native top layer of ultra-soft, vertical row is set afterwards
Water plate 9 and fluid injection supercharging capsule 10, are connected vertical drainage plate 9 with horizontal branch 7, by horizontal branch 7 and laterally
Drain header 14 is connected, and fluid injection is pressurized into capsule 10 afterwards joins successively with horizontal fluid injection supercharging branch pipe 6, horizontal fluid injection supercharging supervisor 13
It is logical, two layers of woven cloth of laying, one layer of geotextiles, one layer of diaphragm seal composition sealing system 3, finally by transverse drainage supervisor 14 with taking out
Vacuum equipment 2 is assembled, horizontal fluid injection supercharging supervisor 13 and the UNICOM of fluid injection supercharging equipment 1；
2) vacuum liquid filling pressurization stages：Vaccum-pumping equipment 2 is opened, after after the vacustat in barged-in fill, water filling is opened
Valve 4, opens fluid injection supercharging equipment 1, and water is pressurized system by horizontal fluid injection and is injected into fluid injection supercharging capsule 10, fluid injection is pressurized
The soil body around capsule 10 applies hydraulic pressure, increases the pressure differential between drain bar and foundation soil；
3) grouting pile body formation stages：After vacuum liquid filling pressurization stages terminate, fluid injection supercharging equipment 1 is closed down, is closed simultaneously
Close Water filling valve 4, while opening the fluid injection seal 5 that fluid injection supercharging capsule 10 top is set, be pressurized to insert in capsule 10 to fluid injection and note
Pipe 15 is starched, and the cement grout being stirred in advance is injected into Grouting Pipe 15, water will be discharged by fluid injection seal 5, treat slurries
It is filled into after fluid injection supercharging capsule 10, forms a slip casting pile body；
4) after reinforced soft soil ground effect produces a desired effect, withdrawing for vacuum unloading and equipment is carried out.
The present invention operation principle be:Conventional vacuum preloading method is improved first, by vaccum-pumping equipment to the soil body
While applying vacuum negative pressure, it is pressurized to the fluid injection set in advance in capsule and injects moisture, capsule is pressurized to surrounding soil by fluid injection
Hydraulic pressure is transmitted, the pressure differential between drain bar and foundation soil is significantly increased, and then improves the drainage rates of soft soil foundation, is promoted
The depth shallow-layer soil body completes discharging consolidation.After vacuum liquid filling supercharging terminates, it is pressurized to fluid injection in capsule and water is injected by Grouting Pipe
Slurry liquid, so as to form a grouting and reinforcing body stake, is pressed further by the hole in the soil body of surrounding, densification surrounding soil, arranges
Pore water unnecessary in the soil body is extruded, the effective stress of weak soil is improved, changes soil body physico-mechanical properties, enhance deep layer
The intensity of the soil body, and then improve the bearing capacity of soft soil foundation.So as to realize that collaboration of the two methods in same place is reinforced
Effect.Two effects：One is the boost mode as vacuum preloading using liquid, improves pressure differential, accelerates rate of consolidation and effect
Really；Two be that further slip casting form compound foundation carries out ground using bellows priming device after vacuum pre-press reinforcing processing is completed
Base consolidation process, reaches the efficient combination and permanent consolidation process effect of two kinds of consolidation effects of Same Site, and shallow-layer can be achieved
Weak soil or depth layer joint reinforcement processing intent.The present invention is directed to conventional vacuum pre-pressed soft soil foundation reinforcement technique feature, with showing
Having technology to compare has advantages below：
1 construction method is simple and easy to apply, easy construction, while construction quality is ensured, can substantially speed up soft soil foundation
Reinforcing process.
2 are compared close with conventional vacuum preloading method, and fluid injection supercharging technology can be significantly increased between drain bar and foundation soil
Pressure differential, it is possible to it is lasting to ensure stable pressure differential, accelerate draining to be simultaneously more beneficial for pore pressure dissipation, accelerate soft soil foundation
Consolidation rate, improve efficiency of construction.
3 after vacuum liquid filling pressurization stages terminate, and directly can carry out deep layer slip casting in fluid injection supercharging Nang Chu, increase soft
Native foundation treatment depth, further enhances soft soil foundation bearing capacity, realizes deep shallow layer soft soil foundation synchronization process simultaneously.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is that the transverse drainage system of the present invention and horizontal fluid injection are pressurized system schematic diagram.
Fig. 3 is pressurized capsule organigram for the fluid injection of the present invention.
Fig. 4 is the vertical drainage plate of the present invention and vertical fluid injection supercharging system arrangement schematic diagram.
Label declaration in figure:1st, fluid injection supercharging equipment；2nd, vaccum-pumping equipment；3rd, sealing system；4 Water filling valves；5th, fluid injection
Seal；6th, horizontal fluid injection supercharging branch pipe；7th, horizontal branch；8th, bowknot；9th, vertical drainage plate；10th, fluid injection supercharging capsule；
11st, water injection pipe；12nd, three-way connection；13rd, horizontal fluid injection supercharging supervisor；14th, transverse drainage is responsible for；15th, Grouting Pipe.
Embodiment
Referring to Fig. 1-4, vacuum liquid filling of the present invention is pressurized joint deep layer injected foundation processing method, the drainage system used
Including vertical drainage plate 9, bowknot 8, horizontal branch 7, the transverse drainage of three-way connection 12 supervisor 14 and vaccum-pumping equipment 2,
Wherein vertical drainage plate 9 is connected and connected with horizontal branch 7 by bowknot 8, and horizontal branch 14 is further through threeway
Joint 12 is connected with transverse drainage supervisor 14, and transverse drainage supervisor 14 finally connects with vaccum-pumping equipment 2.Wherein, vertical drainage
Plate 9 presses arranged in squares, lays deep layer fluid injection supercharging capsule 10 in the center of square, the spacing 0.8-2.0m of vertical drainage plate 9,
The buried depth of fluid injection supercharging capsule 10 is higher than the insertion depth 0.5-1m of vertical drainage plate.
Fluid injection pressure charging system include fluid injection supercharging capsule 10, horizontal fluid injection supercharging branch pipe 6, Water filling valve 4, three-way connection 12,
Horizontal fluid injection supercharging supervisor 13 and fluid injection supercharging equipment 1.Wherein fluid injection supercharging capsule 10 is made up of lightweight latex material, can be with
Fluid pressure is transmitted, fluid injection supercharging capsule 10 top both sides are equipped with water injection pipe 11, and horizontal fluid injection is connected by water injection pipe 11 and be pressurized
Branch pipe 6.Horizontal fluid injection supercharging branch pipe 6 end is equipped with Water filling valve 4, and wherein Water filling valve 4 is connected with fluid injection supercharging equipment 1.
Enough water is pre-charged with the fluid injection supercharging equipment 1, is treated in soil after vacustat, fluid injection supercharging equipment 1 is opened, closed
Fluid injection seal 5 is closed, while open Water filling valve 4, water 1 passes sequentially through horizontal fluid injection supercharging supervisor from fluid injection supercharging equipment
13rd, horizontal fluid injection supercharging branch pipe 6 is injected into fluid injection supercharging capsule 10, and then the soil body near fluid injection supercharging capsule 10 receives application
Extra liquid pressure, the pressure differential between drain bar and foundation soil is increased, this pressure differential is relatively stable, so as to improve
The discharging consolidation speed of vacuum preloading, after fluid injection supercharging terminates, closes Water filling valve 4, simultaneously closes off fluid injection supercharging equipment
1。
After vacuum liquid filling supercharging construction terminates, the fluid injection seal 5 that fluid injection supercharging capsule 10 top is set is opened, is increased to fluid injection
Press and Grouting Pipe 15 is inserted in capsule 10, and the cement grout being stirred in advance is injected into Grouting Pipe 15, slurries are filled into fluid injection increasing
Press after capsule 10, because the density of water is less than serum density, water will be discharged by fluid injection seal 5, and material is thus formed a note
Reinforcing body stake is starched, while with the soil body for being pressed further by surrounding of slip casting, also changing soil body physico-mechanical properties, carrying
The high bearing capacity of soft soil foundation.Wherein Grouting Pipe 15 can be from main regulation height.
The vacuum liquid filling supercharging of the present invention combines method for processing foundation with deep layer slip casting, comprises the following steps:
One) it is the arrangement of apparatus first with connecting.After weak soil or the native top layer of ultra-soft lay one layer of woven cloth, it
After set vertical drainage plate 9 and vertical fluid injection supercharging capsule 10, vertical drainage plate 9 is connected with horizontal branch 7, general transverse direction
Branch drain 7 and transverse drainage supervisor 14 connects, and vertical fluid injection is pressurized into capsule 10 and horizontal fluid injection afterwards is pressurized branch pipe 6, laterally
Fluid injection is pressurized the UNICOM successively of supervisor 13, and two layers of woven cloth of laying, one layer of geotextiles, one layer of diaphragm seal constitute sealing system 3, finally
Transverse drainage supervisor 14 is assembled with vaccum-pumping equipment 2, horizontal fluid injection supercharging supervisor 13 and the UNICOM of fluid injection supercharging equipment 1.
Two) vacuum liquid filling pressurization stages.Vaccum-pumping equipment 2 is opened, after after the vacustat in barged-in fill, water filling is opened
Valve 4, opens fluid injection supercharging equipment 1, and water is pressurized system by horizontal fluid injection and is injected into fluid injection supercharging capsule 10, fluid injection is pressurized
The soil body around capsule 10 applies hydraulic pressure, increases the pressure differential between drain bar and foundation soil, and then improve the row of soft soil foundation
Water speed rate, promotes depth layer soil body to complete discharging consolidation.
Three) after vacuum liquid filling pressurization stages terminate, fluid injection supercharging equipment 1 is closed down, Water filling valve 4, simultaneously is simultaneously closed off
The fluid injection seal 5 that fluid injection supercharging capsule 10 top is set is opened, is pressurized to fluid injection in capsule 10 and inserts Grouting Pipe 15, and to Grouting Pipe
The cement grout being stirred in advance is injected in 15, because the density of water is less than serum density, water will pass through the row of fluid injection seal 5
Go out, after slurries are filled into fluid injection supercharging capsule 10, form a slip casting pile body, enhance the intensity of deep soil, improve
The bearing capacity of soft soil foundation.
Four) after reinforced soft soil ground effect produces a desired effect, withdrawing for vacuum unloading and equipment is carried out.
Claims (1)
1. a kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground processing method, the equipment used includes draining
System and fluid injection pressure charging system, described drainage system include multiple vertical drainage plates (9), bowknot (8), horizontal branch
(7), three-way connection (12), transverse drainage supervisor (14) and vaccum-pumping equipment (2), wherein vertical drainage plate (9) pass through bowknot
(8) it is connected and connects with horizontal branch (7), horizontal branch (14) is further through three-way connection (12) and transverse drainage master
Manage (14) to be connected, transverse drainage supervisor (14) finally connects with vaccum-pumping equipment (2)；Described fluid injection pressure charging system includes fluid injection
It is pressurized capsule (10), horizontal fluid injection supercharging branch pipe (6), Water filling valve (4), three-way connection, horizontal fluid injection supercharging supervisor (13) and notes
Liquid supercharging equipment (1), wherein, the fluid injection supercharging capsule (10) is made up of the elastomeric material that can transmit fluid pressure, and fluid injection increases
Fluid injection seal (5) is provided with the top of pressure capsule (10), top both sides are communicated with water injection pipe (11), and by water injection pipe (11) even
Horizontal fluid injection supercharging branch pipe (6) is connected to, Water filling valve (4) is provided with horizontal fluid injection supercharging branch pipe (6), each horizontal fluid injection
Supercharging branch pipe (6) by horizontal fluid injection supercharging supervisor (13) with fluid injection supercharging equipment (1) by being connected, vertical drainage plate (9)
It is distributed in the periphery of fluid injection supercharging capsule (10)；
Described method for processing foundation, comprises the following steps:
1) arrangement of equipment is with connecting：One layer of woven cloth is laid in weak soil or the native top layer of ultra-soft, vertical drainage plate is set afterwards
(9) and fluid injection supercharging capsule (10), vertical drainage plate (9) is connected with horizontal branch (7), by horizontal branch (7)
Connected with transverse drainage supervisor (14), fluid injection is pressurized capsule (10) afterwards and horizontal fluid injection is pressurized branch pipe (6), horizontal fluid injection and is pressurized
It is responsible for (13) UNICOM successively, two layers of woven cloth of laying, one layer of geotextiles, one layer of diaphragm seal composition sealing system (3), finally by horizontal stroke
Assembled to drain header (14) with vaccum-pumping equipment (2), horizontal fluid injection supercharging supervisor (13) joins with fluid injection supercharging equipment (1)
It is logical；
2) vacuum liquid filling pressurization stages：Vaccum-pumping equipment (2) is opened, after after the vacustat in barged-in fill, water injection valve is opened
Door (4), opens fluid injection supercharging equipment (1), water is pressurized system by horizontal fluid injection and is injected into fluid injection supercharging capsule (10), to fluid injection
The soil body being pressurized around capsule (10) applies hydraulic pressure, increases the pressure differential between drain bar and foundation soil；
3) grouting pile body formation stages：After vacuum liquid filling pressurization stages terminate, fluid injection supercharging equipment (1) is closed down, is simultaneously closed off
Water filling valve (4), while opening the fluid injection seal (5) that fluid injection supercharging capsule (10) top is set, be pressurized to fluid injection in capsule (10)
Grouting Pipe (15), and the cement grout that injection is stirred in advance into Grouting Pipe (15) are inserted, water will pass through fluid injection seal (5)
Discharge, after slurries are filled into fluid injection supercharging capsule (10), forms a slip casting pile body；
4) after reinforced soft soil ground effect produces a desired effect, withdrawing for vacuum unloading and equipment is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367117.7A CN107268567A (en) | 2017-05-23 | 2017-05-23 | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367117.7A CN107268567A (en) | 2017-05-23 | 2017-05-23 | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268567A true CN107268567A (en) | 2017-10-20 |
Family
ID=60065203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710367117.7A Pending CN107268567A (en) | 2017-05-23 | 2017-05-23 | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107268567A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982363A (en) * | 2021-03-08 | 2021-06-18 | 天津大学 | Rubber bag type grouting compaction pile applied to soft soil foundation reinforcement and piling method |
| CN114108597A (en) * | 2021-11-04 | 2022-03-01 | 武汉南方旭域科技工程有限公司 | Vacuum drainage grouting method |
| CN115419045A (en) * | 2022-10-24 | 2022-12-02 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for reinforcing soft soil foundation by combining post-grouting type composite foundation and booster-type vacuum preloading |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003293355A (en) * | 2002-04-01 | 2003-10-15 | Maeda Corp | Improving method of ground |
| KR20070111320A (en) * | 2007-04-09 | 2007-11-21 | 홍찬윤 | Method for reinforcing ground and apparatus for the same |
| CN101100852A (en) * | 2007-08-06 | 2008-01-09 | 张志铁 | Method for double-vacuum self-loading prepressing and earthwork composite filling low-energy strong-ramming reinforcing soft soil |
| CN102296590A (en) * | 2011-06-09 | 2011-12-28 | 宁波高新区围海工程技术开发有限公司 | High-strength reinforcing method of supersoft foundation |
| WO2012108369A1 (en) * | 2011-02-09 | 2012-08-16 | 有限会社アサヒテクノ | Soil improvement method |
| CN106284277A (en) * | 2016-08-22 | 2017-01-04 | 南京新都地下工程研究院有限公司 | A kind of air sac pressing draining combined vacuum precompressed foundation reinforcement method |
-
2017
- 2017-05-23 CN CN201710367117.7A patent/CN107268567A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003293355A (en) * | 2002-04-01 | 2003-10-15 | Maeda Corp | Improving method of ground |
| KR20070111320A (en) * | 2007-04-09 | 2007-11-21 | 홍찬윤 | Method for reinforcing ground and apparatus for the same |
| CN101100852A (en) * | 2007-08-06 | 2008-01-09 | 张志铁 | Method for double-vacuum self-loading prepressing and earthwork composite filling low-energy strong-ramming reinforcing soft soil |
| WO2012108369A1 (en) * | 2011-02-09 | 2012-08-16 | 有限会社アサヒテクノ | Soil improvement method |
| CN102296590A (en) * | 2011-06-09 | 2011-12-28 | 宁波高新区围海工程技术开发有限公司 | High-strength reinforcing method of supersoft foundation |
| CN106284277A (en) * | 2016-08-22 | 2017-01-04 | 南京新都地下工程研究院有限公司 | A kind of air sac pressing draining combined vacuum precompressed foundation reinforcement method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982363A (en) * | 2021-03-08 | 2021-06-18 | 天津大学 | Rubber bag type grouting compaction pile applied to soft soil foundation reinforcement and piling method |
| CN114108597A (en) * | 2021-11-04 | 2022-03-01 | 武汉南方旭域科技工程有限公司 | Vacuum drainage grouting method |
| CN115419045A (en) * | 2022-10-24 | 2022-12-02 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for reinforcing soft soil foundation by combining post-grouting type composite foundation and booster-type vacuum preloading |
| CN115419045B (en) * | 2022-10-24 | 2023-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for reinforcing soft soil foundation by post grouting type combined supercharging type vacuum preloading |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104631428B (en) | Partial deep layer pressurizing type vacuum preloading soft soil foundation processing method | |
| CN105239555B (en) | Method for treating soft soil foundation through combination of bagged grouting gravel pile and vacuum preloading | |
| CN204898658U (en) | Be used for consolidating little biological glue knot sand pile of soft soil foundation | |
| CN102330424B (en) | Vacuum preloading consolidation method for duplex vacuum tube well of blowing filling soft soil | |
| CN103233454A (en) | Processing method of soaking, vacuum preloading and slurry injecting for sand piles of collapsible loess foundation | |
| CN106284277A (en) | A kind of air sac pressing draining combined vacuum precompressed foundation reinforcement method | |
| CN103866759B (en) | Method for reinforcing soft soil foundations by combining booster-type vacuum pre-compression and electro-osmosis | |
| CN100526563C (en) | Method for reinforcing composite vacuum prepressing soft soil foundation | |
| CN107268567A (en) | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method | |
| CN102733371A (en) | Closed direct-sucking sectional vacuum preloading foundation treatment method | |
| CN101225654B (en) | Blow fill foundation treating method and gas injection draining device therefor | |
| CN105386435A (en) | Double-liquid grouting system used for cement and water glass solution and construction process of double-liquid grouting system | |
| CN208072375U (en) | A kind of vacuum method pinniform horizontal drainage structure | |
| CN206815315U (en) | The fluid injection supercharging capsule of fluid injection supercharging joint grouting and reinforcing super soft ground | |
| CN204456064U (en) | A kind of without sand booster-type soft base Quick drainage system | |
| CN202202319U (en) | Vacuum precompressing foundation processing device | |
| CN107806079A (en) | A kind of reinforced soft soil ground device | |
| CN103215945A (en) | Stereo combined power drainage solidifying system and method for soft soil foundation of heterogeneous field | |
| CN105804045A (en) | Equipment for strengthening deep soft soil foundation by vacuum preloading of filter well and method | |
| CN207032197U (en) | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device | |
| CN207032210U (en) | The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing system | |
| CN206815314U (en) | Fluid injection pressure charging system for super soft ground processing | |
| CN107604897A (en) | The reinforcement means that the vacuum preloading of soft soil foundation, air pressure splitting and grouting are combined | |
| CN107806099A (en) | A kind of rigid pile composite foundation stake top filling system and its construction method | |
| CN107100161A (en) | A kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |