CN108287228A - A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect - Google Patents

A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect Download PDF

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Publication number
CN108287228A
CN108287228A CN201810098691.1A CN201810098691A CN108287228A CN 108287228 A CN108287228 A CN 108287228A CN 201810098691 A CN201810098691 A CN 201810098691A CN 108287228 A CN108287228 A CN 108287228A
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CN
China
Prior art keywords
soil sample
cylinder
storage tank
treatment effect
electric osmose
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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
Application number
CN201810098691.1A
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Chinese (zh)
Inventor
詹芳蕾
周建
张天骄
傅了
傅了一
李存谊
甘淇匀
魏利闯
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN201810098691.1A priority Critical patent/CN108287228A/en
Publication of CN108287228A publication Critical patent/CN108287228A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24Earth materials

Abstract

The invention discloses a kind of devices of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect, belong to geotechnical engineering basement process related field, which includes power supply, multiple electrodes, cylinder, head cover, aqua storage tank and pump.Cylinder is for holding experiment soil sample, and head cover while with being bonded at the top of soil sample for making plexiglass cylinder be in air-tight state, and water storage device is for storing the water being discharged in soil sample, and vacuum extractor is for simulating vacuum preloading.The device simple structure, it is easy to operate, solve the problems, such as the experimental provision of research electric osmose combined vacuum precompressed Foundation Treatment Effect.

Description

A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect
Technical field
The present invention relates to a kind of experimental provisions of research electric osmose combined vacuum precompressed Foundation Treatment Effect, more particularly to grinding The device for studying carefully deep soil Foundation Treatment Effect can be used for studying electric osmose combined vacuum precompressed deep soil ground in laboratory experiment Treatment effect.
Background technology
China the southeastern coastal areas it is widely distributed bury, it is aqueous its main feature is that soil body particle is small, compressibility is high Amount is big, infiltration coefficient is small low with shearing strength, since the presence of these characteristics to carry out at ground before engineering construction Reason.Many method for processing foundation are limited by the hydraulic conductivity of the soil body, and discharging consolidation is slow in treatment of soft clay ground foundation, very Cannot extremely get a desired effect, due to electro-osmosis coefficient be hydraulic permeability coefficient decades of times to hundreds times, be applied to it is such Processing soft soil effect is more notable, and some researches show that combined with vacuum method by electric osmose and can be realized in a relatively short period of time Higher basement process requirement, future in engineering applications are more wide.However, for the mechanism of electric osmose combined vacuum precompressed, processing Effect, the research especially for the Foundation Treatment Effect of deep soil need further deeply, and therefore, utilization is relatively simple Experimental provision in the urgent need to address become to the research of the Foundation Treatment Effect of electric osmose combined vacuum precompressed deep soil ask Topic.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, at the present invention provides electric osmose combined vacuum precompressed deep soil ground The experimental provision for managing effect solves processing effect of the research deep soil under the foundation treatment mode of electric osmose combined vacuum precompressed Fruit, it is proposed that the research method of electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect.
The technical solution adopted by the present invention to solve the technical problems is:At a kind of research electric osmose combined vacuum precompressed ground The experimental provision of effect, including power supply, multiple electrodes, cylinder, head cover, aqua storage tank and pump are managed, soil sample is filled in the cylinder, it is more A electrode arrangement is in soil sample, and head cover is positioned over the top of soil sample, and the friction between cylinder barrel is sliding friction;It is described Head cover is provided with center hole and multiple screw holes, center circle pipe is inserted in center hole, and center pipe lower part is inserted in soil In sample, and the side wall of insertion portion is porous structure, and center pipe is connected by conducting wire with power cathode;Aqua storage tank passes through water delivery Pipeline and center circular pipe communicated;Multiple screw holes are identical at a distance from the center hole;It is equipped with metal bolts in screw hole, is arranged in Electrode in soil sample is connected by a metal bolts with power supply respectively;Pump is connected to aqua storage tank.
Further, the cylinder is stacked by multiple cylinders, and is locked by connection ring.
Further, hydraulic pipeline is insulation tube, is inserted in center pipe top.
Further, the hydraulic pipeline is connected to the water storage trench bottom.
Further, pump is connected with aqua storage tank top.
Compared with prior art, the beneficial effects of the invention are as follows:
1, simple structure of the present invention, it is easy to use, the Foundation Treatment Effect of electric osmose combined vacuum preloading method can be studied, especially It is the treatment effect to deep soil.
2, as an improvement of the present invention, be the size for adapting to different soil samples, the present apparatus can replace suitable for different height, Different-diameter electric osmose combined vacuum preloading method tests the plexiglass cylinder of soil sample, can also be according to the different using not of displacement The water storage device of same volume, can also be according to the different negative pressure for requiring to change pump of vacuum degree.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is cathode and anode schematic diagram;
In figure, 1-hydraulic pipeline, 2-center pipes, 3-cylinders, 4-head covers, 5-metal bolts, 6-water storage devices, 7-pumps.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
1. a kind of experimental provision of research electric osmose combined vacuum precompressed Foundation Treatment Effect, including power supply, multiple electrodes, circle Cylinder 3, head cover 4, aqua storage tank 6 and pump 7, the cylinder 3 is for filling soil sample, and multiple electrodes are arranged in soil sample, and head cover 4 is positioned over The top of soil sample, and the friction between 3 barrel of cylinder be sliding friction, can sink with the sedimentation of soil sample, always with The top of soil sample is bonded;
The head cover 4 is provided with center hole and multiple screw holes, and center circle pipe 2, and the center circle are inserted in center hole 2 lower part of pipe is inserted into soil sample, and the side wall of insertion portion is porous structure, in order to aspirate moisture;Center pipe 2 is as cloudy Pole is connected by conducting wire with power supply, aqua storage tank 6 be connected to center pipe 2 by hydraulic pipeline 1 (hydraulic pipeline 1 be insulation Pipe, is inserted in 2 top of center pipe), for storing the water being discharged from hydraulic pipeline 1;Multiple screw holes and the center circle The distance of pipe 2 is identical;It is equipped with metal bolts 5 in screw hole, is arranged in the electrode in soil sample respectively by a metal bolts 5 and power supply It is connected;Each motor constitutes anode.Pump 7 is connected to aqua storage tank 6, is reduced the air pressure in water storage device 6 by pump 7, is indirectly dropped The low air pressure held in soil sample cylinder 3 realizes that electric osmose is combined with vacuum preloading.
As a preferred option, hydraulic pipeline 1 is connected to 6 bottom of the aqua storage tank.Pump 7 is connected with 6 top of aqua storage tank.
Experimentation is as follows:
Soil sample is put into plexiglass cylinder first, is inserted into electrode, electrode upper end is concordant with native face, then Each electrode is connected with metal bolts.Head cover is placed at the top of soil sample, center pipe is also inserted into the soil body therewith, opens water storage dress Switch is set, pump is opened while connecting electrode supply, experiment proceeds by.
As improved technical solution, the cylinder 3 is stacked by multiple cylinders, and is locked by connection ring.It can fit The size of different soil samples is answered, different height, different-diameter are suitable for, it can also be according to the difference of displacement using different volumes Water storage device, can also be according to the different negative pressure for requiring to change pump of vacuum degree.

Claims (5)

1. a kind of experimental provision of research electric osmose combined vacuum precompressed Foundation Treatment Effect, which is characterized in that including power supply, multiple Electrode, cylinder (3), head cover (4), aqua storage tank (6) and pump (7), the cylinder (3) are interior for filling soil sample, multiple electrodes arrangement In soil sample, head cover (4) is positioned over the top of soil sample;The head cover (4) is provided with center hole and multiple screw holes, in center hole It is inserted with center pipe (2), and the center pipe (2) lower part is inserted in soil sample, and the side wall of insertion portion is porous structure. Center pipe (2) is connected by conducting wire with power cathode;Aqua storage tank (6) is connected to by hydraulic pipeline (1) with center pipe (2); Multiple screw holes are identical at a distance from the center hole (2);Metal bolts (5), the electrode being arranged in soil sample are equipped in screw hole It is connected respectively with power anode by a metal bolts (5);Pump (7) is connected to aqua storage tank (6).
2. experimental provision according to claim 1, which is characterized in that the cylinder (3) is stacked by multiple cylinders, and It is locked by connection ring.
3. experimental provision according to claim 1, which is characterized in that the hydraulic pipeline (1) is insulation tube, is inserted in institute State center pipe (2) top.
4. experimental provision according to claim 1, which is characterized in that the hydraulic pipeline (1) is connected to the aqua storage tank (6) bottom.
5. experimental provision according to claim 1, which is characterized in that pump (7) is connected with aqua storage tank (6) top.
CN201810098691.1A 2018-01-31 2018-01-31 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect Pending CN108287228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810098691.1A CN108287228A (en) 2018-01-31 2018-01-31 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810098691.1A CN108287228A (en) 2018-01-31 2018-01-31 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect

Publications (1)

Publication Number Publication Date
CN108287228A true CN108287228A (en) 2018-07-17

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CN201810098691.1A Pending CN108287228A (en) 2018-01-31 2018-01-31 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect

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CN (1) CN108287228A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2463454Y (en) * 2001-02-19 2001-12-05 曾庆云 Earth subgrade vacuum suction machine
CN101224943A (en) * 2008-02-01 2008-07-23 陈江涛 Container type electroosmosis sludge soil reproducing method and device thereof
CN102565139A (en) * 2012-01-11 2012-07-11 清华大学 Indoor vacuum electro-osmosis combined solidification tester
CN103245770A (en) * 2013-04-19 2013-08-14 河海大学 Electroosmosis-vacuum-loading combined consolidometer
CN104569341A (en) * 2014-11-28 2015-04-29 温州大学 Vacuum preloading and electroosmosis combined testing device and vacuum preloading and electroosmosis combined testing method
CN104805823A (en) * 2015-01-05 2015-07-29 温州大学 Large-scale model test device for supercharged vacuum prepressing and electro-osmosis combined treatment for soft soil foundation
CN105568955A (en) * 2015-12-25 2016-05-11 河海大学 Test device and method compounding EKG (electrokinetic geosynthetics) electro-osmosis method with direct-discharge type vacuum pre-loading combination method
CN207816965U (en) * 2018-01-31 2018-09-04 浙江大学 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2463454Y (en) * 2001-02-19 2001-12-05 曾庆云 Earth subgrade vacuum suction machine
CN101224943A (en) * 2008-02-01 2008-07-23 陈江涛 Container type electroosmosis sludge soil reproducing method and device thereof
CN102565139A (en) * 2012-01-11 2012-07-11 清华大学 Indoor vacuum electro-osmosis combined solidification tester
CN103245770A (en) * 2013-04-19 2013-08-14 河海大学 Electroosmosis-vacuum-loading combined consolidometer
CN104569341A (en) * 2014-11-28 2015-04-29 温州大学 Vacuum preloading and electroosmosis combined testing device and vacuum preloading and electroosmosis combined testing method
CN104805823A (en) * 2015-01-05 2015-07-29 温州大学 Large-scale model test device for supercharged vacuum prepressing and electro-osmosis combined treatment for soft soil foundation
CN105568955A (en) * 2015-12-25 2016-05-11 河海大学 Test device and method compounding EKG (electrokinetic geosynthetics) electro-osmosis method with direct-discharge type vacuum pre-loading combination method
CN207816965U (en) * 2018-01-31 2018-09-04 浙江大学 A kind of device of research electric osmose combined vacuum precompressed deep soil Foundation Treatment Effect

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Application publication date: 20180717

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