CN207032197U - The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device - Google Patents

The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device Download PDF

Info

Publication number
CN207032197U
CN207032197U CN201720576006.2U CN201720576006U CN207032197U CN 207032197 U CN207032197 U CN 207032197U CN 201720576006 U CN201720576006 U CN 201720576006U CN 207032197 U CN207032197 U CN 207032197U
Authority
CN
China
Prior art keywords
fluid injection
supercharging
injection supercharging
capsule
horizontal
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.)
Active
Application number
CN201720576006.2U
Other languages
Chinese (zh)
Inventor
雷华阳
王磊
冯双喜
李鑫
缪姜燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201720576006.2U priority Critical patent/CN207032197U/en
Application granted granted Critical
Publication of CN207032197U publication Critical patent/CN207032197U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

It the utility model is related to a kind of vacuum bellows fluid injection supercharging joint grouting and reinforcing super soft ground fluid injection supercharging device, for in the vacuum pre-press reinforcing processing system with multiple vertical drainage plates 9 that is handled weak soil, super soft ground, fluid injection supercharging device 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 is connected to by water injection pipe 11 and is pressurized branch pipe 6, Water filling valve 4 is provided with horizontal fluid injection supercharging branch pipe 6, vertical drainage plate 9 is distributed in the periphery of fluid injection supercharging capsule 10.

Description

The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device
Technical field
The utility model provides one kind in weak soil, super soft ground processing method, the vacuum preloading belonged in Geotechnical Engineering With composite foundation 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 gradually consolidates, 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 There is various types of corrective measures and method, 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 The shortcomings that more:
1) for super soft ground, when carrying out consolidation process using vacuum preloading method, generally displacement early stage Larger, drainage effect is obvious, 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.
2) although it is pre- to improve vacuum to a certain extent 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) stiffening basic ground is carried out using air pressure splitting vacuum preloading and injecting gas boosting technique of soft soil foundation treatment, 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.
Utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, there is provided one kind can be applied to weak soil, super The fluid injection pressure charging system of the vacuum pre-press reinforcing processing system of Soft Ground, using the utility model, it can not only ensure Steady pressure between drain bar and foundation soil is poor, improves vacuum preloading discharging consolidation speed, moreover it is possible to enter one by later stage slip casting Step improves soil strength.The technical solution of the utility model is as follows:
A kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device, for weak soil, surpass In the vacuum pre-press reinforcing processing system that soft soil foundation is handled, described vacuum pre-press reinforcing processing system includes multiple perpendicular To drain bar 9, it is characterised in that
Described fluid injection supercharging device includes fluid injection supercharging capsule 10, horizontal fluid injection supercharging branch pipe 6, Water filling valve 4, three and connected Head, horizontal fluid injection supercharging supervisor 13 and fluid injection supercharging equipment 1, wherein the main body of fluid injection supercharging capsule 10 is that can transmit liquid The elastic sack body of body pressure, fluid injection seal 5 is provided with the top of elastic sack body, top both sides are communicated with water injection pipe 11, and lead to Cross water injection pipe 11 and be connected to horizontal fluid injection supercharging branch pipe 6, Water filling valve 4, each horizontal stroke are provided with horizontal fluid injection supercharging branch pipe 6 Branch pipe 6 is pressurized by being connected by horizontal fluid injection supercharging supervisor 13 with fluid injection supercharging equipment 1 to fluid injection, and vertical drainage plate 9 divides Cloth is on the periphery of fluid injection supercharging capsule 10;When carrying out mortar depositing construction, Grouting Pipe 15 is inserted with elastic sack body.
Preferably, the buried depth of fluid injection supercharging capsule is higher than the insertion depth 0.5-1m of vertical drainage plate.
Operation principle of the present utility model is:Conventional vacuum preloading method is improved first, by vaccum-pumping equipment to While soil body applying vacuum negative pressure, moisture is injected into the fluid injection supercharging capsule set in advance, capsule is pressurized to surrounding by fluid injection The soil body transmits hydraulic pressure, significantly increases the pressure differential between drain bar and foundation soil, and then improves the draining speed of soft soil foundation Rate, depth layer soil body is promoted to complete discharging consolidation.After vacuum liquid filling supercharging terminates, it is pressurized in capsule to fluid injection and is noted by Grouting Pipe Enter cement grout, so as to form a grouting and reinforcing body stake, be pressed further by the soil body of surrounding, the hole in densification surrounding soil Gap, pore water unnecessary in the soil body is expelled from, improves the effective stress of weak soil, change soil body physico-mechanical properties, strengthened The intensity of deep soil, and then improve the bearing capacity of soft soil foundation.So as to realize association of the two methods in same place Same reinforcement effect.
The utility model is directed to conventional vacuum pre-pressed soft soil foundation reinforcement technique feature, compared with prior art with following Advantage:
1 construction method is simple and easy, easy for construction, while construction quality is ensured, can substantially speed up soft soil foundation Reinforcing process.
2 is more close with conventional vacuum preloading method, and fluid injection supercharging technology can be significantly increased between drain bar and foundation soil Pressure differential, and can continue to ensure stable pressure differential, accelerate draining simultaneously be 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, soft soil foundation bearing capacity is further enhanced, realize deep shallow layer soft soil foundation synchronization process simultaneously.
Two effects:First, use boost mode of the liquid as vacuum preloading, improve pressure differential, accelerate rate of consolidation and Effect;Second, using bellows priming device after vacuum pre-press reinforcing processing is completed, further slip casting form compound foundation is carried out Stiffening basic ground, reach the efficient combination of two kinds of consolidation effects of Same Site and permanent consolidation process effect, can be achieved shallow Layer weak soil or depth layer joint reinforcement processing intent.
Brief description of the drawings
Fig. 1 is the overall structure diagram of vacuum pre-press reinforcing processing system.
Fig. 2 is that transverse drainage system and horizontal fluid injection are pressurized system schematic diagram.
Fig. 3 is that fluid injection is pressurized capsule organigram.
Fig. 4 is that vertical drainage plate and vertical fluid injection are pressurized system and arrange 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 supercharging joint deep layer injected foundation processing method, used drainage system includes perpendicular To drain bar 9, bowknot 8, horizontal branch 7, the transverse drainage of three-way connection 12 supervisor 14 and vaccum-pumping equipment 2, wherein perpendicular It is connected and connects with horizontal branch 7 by bowknot 8 to drain bar 9, horizontal branch 14 is further through three-way connection 12 It is connected with transverse drainage supervisor 14, transverse drainage supervisor 14 finally connects with vaccum-pumping equipment 2.Wherein, vertical drainage plate 9 is by just Square arrangement, lays deep layer fluid injection supercharging capsule 10, the spacing 0.8-2.0m of vertical drainage plate 9 at the center of square, and fluid injection increases The buried depth of capsule 10 is pressed to be higher than the insertion depth 0.5-1m of vertical drainage plate.
Fluid injection supercharging device 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 described fluid injection supercharging capsule 10 is made up of lightweight latex material, can To transmit fluid pressure, fluid injection supercharging capsule 10 top both sides are equipped with water injection pipe 11, and connect horizontal fluid injection by water injection pipe 11 and increase Press 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 It is logical.Enough water is pre-charged with the fluid injection supercharging equipment 1, is treated in soil after vacustat, opens fluid injection supercharging equipment 1, fluid injection seal 5 is closed, while open Water filling valve 4, water 1 passes sequentially through horizontal fluid injection supercharging master from fluid injection supercharging equipment Pipe 13, horizontal fluid injection supercharging branch pipe 6 are injected into fluid injection supercharging capsule 10, and then the soil body near fluid injection supercharging capsule 10 is received and applied The extra liquid pressure added, 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 supercharging to be injected terminates, Water filling valve 4 is closed, simultaneously close off fluid injection supercharging and set Standby 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 After pressing 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 changes soil body physico-mechanical properties, carries The high bearing capacity of soft soil foundation.Wherein Grouting Pipe 15 can be from main regulation height.
Whole vacuum liquid filling supercharging combines method for processing foundation with deep layer slip casting, comprises the following steps:
First, it is the arrangement of apparatus first with connecting.After weak soil or ultra-soft soil top layer 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 UNICOM, two layers of woven cloth of laying, one layer of geotextiles, one layer of diaphragm seal form sealing system 3 to fluid injection supercharging supervisor 13 successively, 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.
2nd, vacuum liquid filling pressurization stages.Vaccum-pumping equipment 2 is opened, after the vacustat in barged-in fill, opens water filling 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, depth layer soil body is promoted to complete discharging consolidation.
3rd, after vacuum liquid filling pressurization stages terminate, fluid injection supercharging equipment 1 is closed down, simultaneously closes off Water filling valve 4, simultaneously 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.
4th, after reinforced soft soil ground effect produces a desired effect, withdrawing for vacuum unloading and equipment is carried out.

Claims (2)

1. a kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device, for weak soil, ultra-soft In the vacuum pre-press reinforcing processing system that soil base is handled, described vacuum pre-press reinforcing processing system includes multiple vertical Drain bar (9), it is characterised in that
Described fluid injection supercharging device includes fluid injection supercharging capsule (10), horizontal fluid injection supercharging branch pipe (6), Water filling valve (4), threeway Joint, horizontal fluid injection supercharging supervisor (13) and fluid injection supercharging equipment (1), wherein the main body of fluid injection supercharging capsule (10) is can be with The elastic sack body of fluid pressure is transmitted, is provided with fluid injection seal (5) at the top of elastic sack body, top both sides are communicated with water injection pipe (11), and horizontal fluid injection is connected to by water injection pipe (11) and is pressurized branch pipe (6), be provided with horizontal fluid injection supercharging branch pipe (6) Water filling valve (4), each horizontal fluid injection supercharging branch pipe (6) by horizontal fluid injection by being pressurized supervisor (13) and fluid injection supercharging equipment (1) it is connected, vertical drainage plate (9) is distributed in the periphery of fluid injection supercharging capsule (10);When carrying out mortar depositing construction, in elastic sack body In be inserted with Grouting Pipe (15).
2. fluid injection supercharging device according to claim 1, it is characterised in that the buried depth of fluid injection supercharging capsule is higher than vertical The insertion depth 0.5-1m of drain bar.
CN201720576006.2U 2017-05-23 2017-05-23 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device Active CN207032197U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720576006.2U CN207032197U (en) 2017-05-23 2017-05-23 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720576006.2U CN207032197U (en) 2017-05-23 2017-05-23 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device

Publications (1)

Publication Number Publication Date
CN207032197U true CN207032197U (en) 2018-02-23

Family

ID=61479276

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720576006.2U Active CN207032197U (en) 2017-05-23 2017-05-23 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device

Country Status (1)

Country Link
CN (1) CN207032197U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268568A (en) * 2017-05-23 2017-10-20 天津大学 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268568A (en) * 2017-05-23 2017-10-20 天津大学 The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device

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
CN102330424B (en) Vacuum preloading consolidation method for duplex vacuum tube well of blowing filling soft soil
CN102733371B (en) Closed direct-sucking sectional vacuum preloading foundation treatment method
CN106284277A (en) A kind of air sac pressing draining combined vacuum precompressed foundation reinforcement method
CN103233454A (en) Processing method of soaking, vacuum preloading and slurry injecting for sand piles of collapsible loess foundation
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
CN202202319U (en) Vacuum precompressing foundation processing device
CN105386435A (en) Double-liquid grouting system used for cement and water glass solution and construction process of double-liquid grouting system
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
CN204456064U (en) A kind of without sand booster-type soft base Quick drainage system
CN207032210U (en) The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing system
CN102733370A (en) Novel vacuum-heaped combined soft soil foundation pre-loading and reinforcing method
CN206815315U (en) The fluid injection supercharging capsule of fluid injection supercharging joint grouting and reinforcing super soft ground
CN206815314U (en) Fluid injection pressure charging system for super soft ground processing
CN107268567A (en) The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground processing method
CN102912787B (en) Vacuum preloading method for fine sand mats and filter tube sealing
CN205669197U (en) A kind of foundation-reinforcing device
CN107604897A (en) The reinforcement means that the vacuum preloading of soft soil foundation, air pressure splitting and grouting are combined
CN107100161A (en) A kind of vacuum bellows fluid injection is pressurized joint grouting and reinforcing super soft ground processing system
CN107190725A (en) A kind of fluid injection supercharging capsule of fluid injection supercharging joint grouting and reinforcing super soft ground
CN107268568A (en) The fluid injection of vacuum bellows is pressurized joint grouting and reinforcing super soft ground fluid injection supercharging device
CN107190726A (en) A kind of fluid injection pressure charging system handled for super soft ground

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, Tianjin University.

Patentee after: Tianjin University

Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92

Patentee before: Tianjin University