CN203178229U - Experimental device for consolidating soft clay by electroosmosis under anode follow-up action - Google Patents
Experimental device for consolidating soft clay by electroosmosis under anode follow-up action Download PDFInfo
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- CN203178229U CN203178229U CN 201320149349 CN201320149349U CN203178229U CN 203178229 U CN203178229 U CN 203178229U CN 201320149349 CN201320149349 CN 201320149349 CN 201320149349 U CN201320149349 U CN 201320149349U CN 203178229 U CN203178229 U CN 203178229U
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Abstract
The utility model relates to an experimental device for consolidating soft clay by electroosmosis under the anode follow-up action. The device comprises a model case, an electroosmotic cathode, an electroosmotic anode and a power supply, wherein the model case comprises water collection chambers on the two sides and a sample chamber in the middle; the sample chamber and the water collection chambers on the two sides are separated by clapboards with cuts at the lower ends; the electroosmotic cathode and the electroosmotic anode respectively cling to the two ends of the sample chamber; and the power supply is connected with the electroosmotic cathode and the electroosmotic anode by power supply clips. Compared with the prior art, the experimental device has the advantages of simple structure, accuracy in detection and the like.
Description
Technical field
The utility model relates to a kind of ground and handles experimental provision, especially relates to soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect.
Background technology
The electro-osmosis method reinforcing soft ground is as a kind of method for processing foundation, and because of the processing advantage of himself, the various countries scholar has carried out number of research projects to it, and successful application has also been arranged in the engineering.It is fast that electro-osmosis method has reinforcing speed, and fine grained, low-permeability soil are had good advantages such as consolidation effect.Esrig has carried out the consolidation by electroosmosis Study on Theory the earliest in nineteen sixty-eight, and has proposed the one-dimensional consolidation classical theory of electric osmose.The method that Su Jin equals by force to adopt piecemeal to handle on the basis of Esrig One-dimensional Consolidation Theory in 2004 has been carried out the parsing of two-dimentional consolidation theory, has proposed the two-dimentional consolidation theory of electric osmose.Zhuan Yanfeng etc. analyze the interface resistance problem in the electric osmose process, and have proposed energy level gradient theory and the electric charge accumulation theory of electric osmose, have enriched the theoretical research of electro-osmosis method.Micic, Gong Xiaonan etc. utilize the method for shop experiment to prove that respectively the intermittently power-on technology is arranged electrode row shape and the electric osmose reinforcing process of rotational symmetry deployment scenarios, have facilitation preferably, but the intermittently power-on technology practical problemss such as reinforcing excessive cycle have also been caused.Wang Xiequn etc. have carried out the shop experiment research of electrode switch technology to the drainage by electroosmosis influence, have shown the helpfulness of electrode switch technology, but have shown that also the electrode transfer process is difficult for the effectively difficult problem of control.Li Ying etc. have carried out the experimental study of equipotential gradient bottom electrode spacing to the electric osmose influence, have proved and have adopted less electrode separation can promote the electric osmose consolidation effect.When also having reported the electro-osmosis method soft soil foundation in the domestic and foreign literature and vacuum method, the symphyogenetic test of low-energy strong-ramming method and application in practice etc., electro-osmosis method and the symphyogenetic validity of other method have been proved.
It is fast that electro-osmosis method has reinforcing speed, and fine grained, low-permeability soil are had good advantages such as consolidation effect, and have weak effect in conjunction with water in the discharge soil body.But, the application of electro-osmosis method also is subjected to the puzzlement of problems such as electric osmose process median surface resistance increases, anode and cathode zone soil moisture content descends inhomogeneous (generally more and more higher to the cathode direction water percentage along anode, the negative electrode place compiles large quantity of moisture), the reduction of soil body electro-osmosis coefficient.At the problems referred to above, if carry out in the process in test, when the anodic site soil body shrinks because consolidation draining produces the soil body, and then break away from anode when causing the anodic site interface resistance sharply to increase, anode can be extracted (or using new anode) follows up to negative electrode, be inserted near negative electrode and the higher zone of soil moisture content, anode will be contacted again with surrounding soil, the interface resistance of rapid increase is effectively reduced, and can make original soil body of failing away from the anodic site effectively to be reinforced be able to further reinforcing.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of simple in structure for the defective that overcomes above-mentioned prior art existence, detects soft clay consolidation by electroosmosis experimental provision under the effect of anode follow-up accurately.
The purpose of this utility model can be achieved through the following technical solutions: soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect, it is characterized in that, comprise model casing, electric osmose negative electrode, electric osmose anode, power supply, model casing is made up of collecting chamber and the middle sample chamber of both sides, the collecting chamber of sample chamber and both sides is separated by the dividing plate that the lower end has otch, described electric osmose negative electrode and electric osmose anode are close to the sample chamber two ends respectively, and described power supply connects electric osmose negative electrode and electric osmose anode by power folder.
The high 20mm of described otch.
The material of described model casing and dividing plate is organic glass.
Described collecting chamber center is provided with installs the aperture that electric osmose water is discharged conduit.
Described electric osmose water is discharged conduit and is connected graduated cylinder.
The width of described electric osmose negative electrode and electric osmose anode is identical with the sample chamber width, highly exceeds model casing 10mm,
Every 25cm an electromotive force chaining pin is set on the axis of described electric osmose negative electrode and electric osmose anode, each electromotive force chaining pin connects multimeter.
Compared with prior art, the utility model is in electro-osmosis method consolidation of soft clay foundation process, change, go out indexs such as rheologyization, interface resistance variation according to electric current in the process of the test and monitor the situation of change that electro-osmosis method is reinforced efficient in real time, when electro-osmosis method is sunk into poor efficiency because of reasons such as interface resistance increases, the correct position of choosing close electric osmose negative electrode inserts anode again, and (plugging the position should determine according to the soil moisture content distribution situation, and apply and original identical potential gradient continues to reinforce the general interphase place of selecting soil moisture content whether to satisfy processing requirements).Generalized case, the metal anode after electric osmose is reinforced will be corroded, and may lose the part reinforced steel bar strength, make the problems such as meeting with the reinforcing bar bending when reinforcing bar carries out the anode follow-up that plugs.Therefore, for guaranteeing the construction easy operating, select to use new anode to plug again in principle when carrying out the anode follow-up, original metal anode is not carried out secondary and use.For this reason, if carry out anode follow-up engineering when using, for avoiding causing the wasting of resources, after the consolidation process metal anode after using is being recycled.
This device has verified that anode follow-up technology determines in the active validity of electro-osmosis method consolidation of soft clay foundation and antianode follow-up technology related application index, obtained the useful conclusion used about anode follow-up technology by test, engineering has been used proposed guiding suggestion.
Description of drawings
Fig. 1 is the structural representation of utility model;
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect, comprise model casing 1, electric osmose negative electrode 2, electric osmose anode 3, power supply, model casing is made up of collecting chamber 11 and the middle sample chamber 12 of both sides, sample chamber 12 is separated by the dividing plate 13 that the lower end has otch with the collecting chamber 11 of both sides, the high 20mm of otch makes sample chamber and collecting chamber UNICOM to collect the electric osmose drainage water.The material of model casing and dividing plate is organic glass.The inner length and width height of sample chamber is of a size of 200mm * 100mm * 100mm, the high size 40mm of the inner length and width of both sides collecting chamber * 100mm * 100mm, collecting chamber 11 centers are provided with installs the aperture that electric osmose water is discharged conduit 4, and electric osmose water is discharged conduit 4 and connected graduated cylinder 5, makes the electric osmose drainage water flow into graduated cylinder.Described electric osmose negative electrode 2 and electric osmose anode 3 are close to sample chamber 12 two ends respectively, and described power supply connects electric osmose negative electrode and electric osmose anode by power folder.Power supply adopts GWinstek SPD-3606 constant voltage dc source, its built-in two direct supplys independently, each direct supply peak power output is 60V * 3A or 30V * 6A, with two independently direct supply carry out can providing the output voltage of maximum 120V or the output current of maximum 12A after connection in series-parallel arranges.Power supply is instant current value and the magnitude of voltage in the display circuit in real time.Power supply can long time continuous working, and possesses over-voltage protecting function.
The width of described electric osmose negative electrode 2 and electric osmose anode 3 is identical with the sample chamber width, is 100mm, highly exceeds model casing 10mm so that by power folder with the anode and cathode place in circuit.Battery lead plate thickness is 3mm, so the soil sample physical length is 194mm in the sample chamber, a little less than 200mm.Be the follow-up test easy operating herein, when applying voltage gradient in the test operation process, soil sample length is estimated with 200mm.Wherein, the electric osmose anode surface is smooth closely knitly not to be done processing and handles, and the electric osmose negative electrode carries out surface drilling to be handled on the basis of anode, and in the smooth one deck gauze of a side surface as filtering layer, flow into collecting chamber to prevent soil particle.Test adopts stainless steel wire mesh to make with the follow-up anode, and the high wide size 110mm of electrode * 100mm, thickness insert the test soil body less than 1mm according to testing program, to realize the anode follow-up.
Every 25cm an electromotive force chaining pin being set on the axis of described electric osmose negative electrode 2 and electric osmose anode 3, is D1, D2, D3, D4, D5, D6 and D7 from negative electrode to the anode number consecutively.It is the stainless steel wire of 10cm, diameter 1mm that the electromotive force chaining pin adopts length, vertically inserts the soil body, and embedded depth is 7cm.In the measuring process, multimeter is adjusted to voltage gear, the stiff end of gauge outfit chaining pin is linked to each other with the electric osmose negative electrode, the surveyingpin of gauge outfit chaining pin is linked to each other with the top of each electromotive force chaining pin successively along negative electrode anode direction, treat that the multimeter meter sense stablizes laggard line item.
Under the effect of DC electric field, the water in the soil body moves to negative electrode from anode, converges in negative electrode, and flows into collecting chamber through otch, and the aperture by collecting chamber base plate center flows into the graduated cylinder that is placed under it at last.The construction features that two ends, the above-mentioned organic glass case left and right sides respectively arrange a collecting chamber can satisfy the requirement of carrying out the electrode transfer test in the process of the test.When carrying out the electrode transfer test, only need in the model installation process before on-test the electric osmose anode to be adopted the draining setting identical with the electric osmose negative electrode, and in process of the test, get final product in the name a person for a particular job anode and cathode interface exchange of power supply of official hour according to testing program.
Claims (7)
1. soft clay consolidation by electroosmosis experimental provision under the anode follow-up effect, it is characterized in that, comprise model casing, electric osmose negative electrode, electric osmose anode, power supply, model casing is made up of collecting chamber and the middle sample chamber of both sides, the collecting chamber of sample chamber and both sides is separated by the dividing plate that the lower end has otch, described electric osmose negative electrode and electric osmose anode are close to the sample chamber two ends respectively, and described power supply connects electric osmose negative electrode and electric osmose anode by power folder.
2. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 1 is characterized in that the high 20mm of described otch.
3. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 1 and 2 is characterized in that the material of described model casing and dividing plate is organic glass.
4. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 1 is characterized in that, described collecting chamber center is provided with installs the aperture that electric osmose water is discharged conduit.
5. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 4 is characterized in that, described electric osmose water is discharged conduit and connected graduated cylinder.
6. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 1 is characterized in that the width of described electric osmose negative electrode and electric osmose anode is identical with the sample chamber width, highly exceeds model casing 10mm,
7. soft clay consolidation by electroosmosis experimental provision under a kind of anode follow-up effect according to claim 1 is characterized in that, every 25cm an electromotive force chaining pin is set on the axis of described electric osmose negative electrode and electric osmose anode, and each electromotive force chaining pin connects multimeter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320149349 CN203178229U (en) | 2013-03-28 | 2013-03-28 | Experimental device for consolidating soft clay by electroosmosis under anode follow-up action |
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| CN 201320149349 CN203178229U (en) | 2013-03-28 | 2013-03-28 | Experimental device for consolidating soft clay by electroosmosis under anode follow-up action |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053254A (en) * | 2016-07-07 | 2016-10-26 | 天津城建大学 | Electric osmosis-loading joint shear apparatus |
| CN110954464A (en) * | 2019-12-26 | 2020-04-03 | 北京科技大学 | Electroosmosis method of tailings sand is drainage test equipment with higher speed |
| CN113295567A (en) * | 2021-06-22 | 2021-08-24 | 武汉大学 | Device and method for measuring electroosmosis coefficient of soil near direct current grounding electrode |
| CN114878784A (en) * | 2022-05-18 | 2022-08-09 | 江苏科技大学 | Soft soil solidification test device and method |
-
2013
- 2013-03-28 CN CN 201320149349 patent/CN203178229U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053254A (en) * | 2016-07-07 | 2016-10-26 | 天津城建大学 | Electric osmosis-loading joint shear apparatus |
| CN110954464A (en) * | 2019-12-26 | 2020-04-03 | 北京科技大学 | Electroosmosis method of tailings sand is drainage test equipment with higher speed |
| CN113295567A (en) * | 2021-06-22 | 2021-08-24 | 武汉大学 | Device and method for measuring electroosmosis coefficient of soil near direct current grounding electrode |
| CN113295567B (en) * | 2021-06-22 | 2022-11-22 | 武汉大学 | Device and method for measuring electroosmosis coefficient of soil near direct current grounding electrode |
| CN114878784A (en) * | 2022-05-18 | 2022-08-09 | 江苏科技大学 | Soft soil solidification test device and method |
| CN114878784B (en) * | 2022-05-18 | 2023-09-22 | 江苏科技大学 | Soft soil solidification test device and method |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130904 |