CN203795411U - Device for treating swelling soil in electroosmosis manner - Google Patents
Device for treating swelling soil in electroosmosis manner Download PDFInfo
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- CN203795411U CN203795411U CN201420155917.4U CN201420155917U CN203795411U CN 203795411 U CN203795411 U CN 203795411U CN 201420155917 U CN201420155917 U CN 201420155917U CN 203795411 U CN203795411 U CN 203795411U
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- 239000002689 soil Substances 0.000 title claims abstract description 127
- 238000005370 electroosmosis Methods 0.000 title claims abstract description 87
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical group [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
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- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
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- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
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- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
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Abstract
A device for treating swelling soil in an electroosmosis manner comprises a plurality of electroosmosis electrodes, a plurality of first electrode leads, a plurality of second electrode leads, a power source, two metal wires and two voltage measuring meters, wherein the electroosmosis electrodes are inlaid in swelling soil and are arrayed in rows; each first electrode lead and each second electrode lead are respectively connected with the corresponding two rows of electroosmosis electrodes adjacent to the first electrode lead and the second electrode lead; the power source comprises a positive pole and a negative pole; the first electrode leads and the second electrode leads are respectively connected to different poles of the power source, so that each two rows of electroosmosis electrodes which are adjacent to the corresponding first electrode lead and the corresponding second electrode lead are respectively connected to the positive pole and the negative pole of the power source; the two metal wires are inlaid in the swelling soil; one metal wire is close to one of the electroosmosis electrodes connected to the positive pole; the other metal wire is close to one of the electroosmosis electrodes connected to the negative pole; and the two metal wires are connected with the negative poles of the power source through the two voltage measuring meters respectively.
Description
Technical field
The present invention relates to a kind of electric osmose and process the device of expansive soil.
Background technology
Expansive soil is a kind of soil with special engineering geological characteristics, and dehydration contraction and imbibition characteristic that it is violent usually cause geotechnical engineering disaster, slump of the cracking of for example house wall, landslide, subway line etc.In Henan, Deng Di location, Hubei, have the ground such as a large amount of expansive soil slopes (ground), particularly Nanyang, Handan, Xinxiang at China's Route, the degree of free swelling of its expansive soil even can be up to more than 150%.
The mechanism of intumescence of expansive soil mainly contains two kinds, and diffuse double layer theoretical explanation theoretical by lattice dilation respectively.Lattice dilation theory is pointed out, clay mineral, especially montmorillonite, have obvious expansion lattice structure, between crystal layer and crystal layer, be combined by the weak bond being connected taking oxygen as atoms in common, connecting forces is very weak, polar water molecules is easy to enter between crystal layer, causes lattice dilation, volume expansion; In addition, because the silicon ion of intracell is substituted by aluminium ion, or aluminium ion is substituted by magnesium ion or iron ion, make to have in lattice that anion is unnecessary to get off, calcium, sodium, magnesium, potassium plasma panel will be drawn into crystal layer, and the oxonium ion of these ions and crystal layer bottom forms ionic bond, this ionic bond connecting forces very a little less than, have polar water molecules and enter between crystal layer, form diffuse double layer, make crystal layer expansion.
The disaster problem causing in order to solve expansive soil, comparatively ripe method of modifying is spike method at present,, by expansive soil is mixed with modified materials material, then through and immersion or hit the methods such as reality and process, the reduction that after placement a period of time, the degree of free swelling of this compound gets final product to a certain extent.Material as modified materials mainly contains lime, flyash, cement, alkaline residue, ion soil hardening agent, cation modifier etc., these modified materials materials reduce expansive soil particle shrinkage by complicated chemical reaction, ion exchange and cementation, and degree of free swelling reduces.Concrete action principle is: the modified materials materials such as lime, flyash, cement, alkaline residue mix after expansive soil, silica, the alumina that expansive soil CLAY MINERALS AND THEIR SIGNIFICANCE is separated reacts with the calcium oxide in lime and forms aquation silicon and calcium aluminate colloid, be attached between soil particle surface and particle, after sclerosis, play the cementation that soil particle is bound up, and then reduce its expansion characteristics.The calcium brought into by modified materials material, magnesium ion also can and clay mineral crystal layer between sodium, potassium ion generation ion-exchange, the ionic bond forming due to calcium, magnesium and crystal layer bottom oxonium ion is stronger with the ionic bond of oxonium ion formation than sodium, potassium, strengthen the connecting forces between crystal layer, and then reduced its expansion rate.
But the research of said method is that spike test is carried out in the laboratory of fetching earth from expansive soil scene mostly, does not process on a large scale for Expansion on site soil, its component on site construction method and flow process need further research.
Summary of the invention
Therefore, be necessary to provide a kind of directly site operation to process the expansive soil treating apparatus of expansive soil.
Electric osmose is processed a device for expansive soil, and it comprises multiple electroosmosis electrodes, and the plurality of electroosmosis electrode embeds in expansive soil and arranges and form multirow; Multiple the first contact conductors and multiple the second contact conductor, each the first contact conductor and the second contact conductor are electrically connected with two adjacent row electroosmosis electrodes respectively; One power supply, this power supply comprises positive pole and negative pole, the first contact conductor and the second contact conductor connect respectively different power electrodes, thereby make the electroosmosis electrode of adjacent two row connect respectively positive pole and the negative pole of power supply; Two one metal wires embed in expansive soil, and an one metal wire connects anodal electroosmosis electrode near one, and another wire is near the electroosmosis electrode of a connection negative pole; And, two voltage measurement meters, every one metal wire is connected with the negative pole of power supply by a voltage measurement meter respectively.
Electric osmose provided by the present invention is processed the device of expansive soil, can process expansive soil by the method for electric osmose, and electroosmosis electrode can directly be squeezed in expansive soil expansive soil is processed, and has realized the in-situ processing to actual expansive soil.And the using method of the treating apparatus of expansive soil provided by the invention is simple to operate, can realize the large-area expansive soil of direct processing.
Brief description of the drawings
Fig. 1 be the electric osmose that provides of the embodiment of the present invention device of processing expansive soil structure with and in the constructing structure schematic top plan view of processing while expanding.
Fig. 2 is the sectional elevation figure of Fig. 1.
Fig. 3 is the generalized section of the electric osmose that provides of the embodiment of the present invention structure of device in the time processing expansive soil slope of processing expansive soil.
Critical element symbol description
| Expansive soil | 10 |
| Electroosmosis electrode | 100 |
| The first contact conductor | 102 |
| The second contact conductor | 104 |
| Power supply | 120 |
| Anodal | 122 |
| Negative pole | 124 |
| Wire | 140 |
| Voltage measurement meter | 160 |
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, expansive soil processing method provided by the present invention is described in further details.
Please refer to Fig. 1-3, the present invention further provides a kind of device of electric osmose processing expansive soil, it comprises multiple electroosmosis electrodes 100, and the plurality of electroosmosis electrode 100 embeds the interior arrangement of expansive soil 10 and forms multirow; Multiple the first contact conductors 102 and multiple the second contact conductor 104, each the first contact conductor 102 and the second contact conductor 104 are electrically connected with two adjacent row electroosmosis electrodes 100 respectively; One power supply 120, this power supply 120 comprises that positive pole 122 and negative pole 124, the first contact conductors 102 and the second contact conductor 104 connect respectively different power electrodes, thereby makes the electroosmosis electrode 100 of adjacent two row connect respectively positive pole 122 and the negative pole 124 of power supply; Two one metal wires 140 embed in expansive soil, and an one metal wire 140 connects anodal 122 electroosmosis electrode 100 near one, and another wire 140 is near the electroosmosis electrode 100 of a connection negative pole 124; And, two voltage measurement meters 160, every one metal wire 140 is connected with the negative pole 124 of power supply 120 by a voltage measurement meter 160 respectively.
Described each electroosmosis electrode 100 is the tubular structure of a hollow, and on tube wall, is provided with multiple through holes.Owing to processing in the use procedure of device of expansive soil in electric osmose, need to carry out electric osmose processing to expansive soil, in expansive soil, there will be infiltration phenomenon, acting as of through hole can make water see through electroosmosis electrode 100.The arrangement mode of through hole is not limit, and the through hole number on each electroosmosis electrode 100 is not also limit, as long as have good permeable effect.Described electroosmosis electrode 100 is metal electrode, and its material can be copper or iron.The length of electroosmosis electrode 100 can be determined according to the degree of depth of expansive soil 10.The external diameter of electroosmosis electrode 100 is not limit, and can be 2 centimetres to 20 centimetres.Multiple electroosmosis electrodes 100 are squeezed in expansive soil 10, form a row-column configuration, i.e. an electrod-array.Electroosmosis electrode 100 in described electrod-array is arranged and is formed multirow and multiple row, between row and row, is parallel to each other, and between row and row, is parallel to each other, mutually vertical between row and column.The number of every row/every row electroosmosis electrode 100 is not limit, and can determine according to the surface area of expansive soil.Between multiple electroosmosis electrodes 100 in electrod-array, be arranged parallel to each other.With a line neutralization/or same row in, the distance between adjacent two electroosmosis electrodes 100 is 0.5 meter to 3 meters.In the present embodiment, the number of electroosmosis electrode 100 is 16, forms one 4 × 4 electrod-array in expansive soil, i.e. the structure of 4 row and 4 row, and the spacing between the electroosmosis electrode that electroosmosis electrode 100 is adjacent is 1.5 × 1.5m.The device that described electric osmose is processed expansive soil further comprises multiple conduction filter clothes, and the plurality of conduction filter cloth is wrapped in around electroosmosis electrode 100.The soil property preventing in expansive soil 10 that act as of conduction filter cloth is seeped in electroosmosis electrode 100 by the through hole on electroosmosis electrode 100, affects the functional performance of electroosmosis electrode 100.Multiple electroosmosis electrodes 100 are arranged parallel to each other between electroosmosis electrode 100 after squeezing into expansive soil 10.
Described expansive soil 10 can be expansive soil foundation or expansive soil slope.Expansive soil foundation refers to that required expansive soil to be processed is in the inside in soil, and expansive soil is positioned at below ground line.Described expansive soil slope refers to that required expansive soil to be processed is positioned at the edge in soil, i.e. slope, as massif slope, riverway slope etc.As depicted in figs. 1 and 2, in the time that expansive soil 10 is an expansive soil foundation, its surface is a horizontal plane, and multiple electroosmosis electrodes 100, can be perpendicular to the surface of expansive soil 10 after squeezing into expansive soil 10.Be appreciated that in other embodiment, multiple electroosmosis electrodes 100 also can arrange at an angle with the surface of expansive soil 10, and the scope of this angle can be less than or equal to 90 degree for being more than or equal to 45 degree.As shown in Figure 3, in the time that expansive soil 10 is an expansive soil slope, expansive soil slope comprises a upper surface and a slope, and multiple electroosmosis electrodes 100 can be squeezed in slope and arrange formation electrod-array according to the mode of the upper surface that is parallel to expansive soil 10.Certainly, electroosmosis electrode 100 also can according to ramped surfaces mode spread configuration at an angle, the scope of this angle can be less than or equal to 90 degree for being more than or equal to 45 degree.In the time that expansive soil 10 is expansive soil slope, electroosmosis electrode 100 is squeezed in slope, electroosmosis electrode 100 is except for discharging consolidation and modified expanded native 10, electric osmose can be stayed electroosmosis electrode in side slope after processing expansive soil 10, play the effect of reinforcement, further strengthen the strength and stability of side slope.
Described the first contact conductor 102 and the second contact conductor 104 are electrically connected with the electroosmosis electrode 100 of adjacent two row respectively.That is, the first contact conductor 102 is electrically connected with the multirow electroosmosis electrode 100 of alternate intervals setting, and the second contact conductor 104 alternately hands over a multirow electroosmosis electrode 100 arranging to be electrically connected with another part.The electroosmosis electrode 100 of described adjacent two row is electrically connected with positive pole 122 and the negative pole 124 of power supply by the first contact conductor 102 and the second contact conductor 104 respectively.In the present embodiment, the first contact conductor 102 is electrically connected with anodal 122, and the second contact conductor 104 is electrically connected with negative pole 124.Described power supply 120 is a dc source.
The length of described wire 140 is not limit, and preferably, the length of wire 140 is 2 centimetres to 20 centimetres.The material of wire 140 can be the conductive metallic materials such as copper, iron, silver.The degree of depth that wire 140 is squeezed into expansive soil is 1 centimetre to 15 centimetres.Between wire 140 and electroosmosis electrode 100, be parallel to each other.Distance between described wire 140 and electroosmosis electrode 100 is 0.05 meter～0.1 meter.
Distance dependent between the electroosmosis electrode 100 of the voltage of described power supply 120 and adjacent two row, i.e. distance between same two electroosmosis electrodes 100 that list in two adjacent row electroosmosis electrodes 100.The same voltage gradient listing between adjacent two electroosmosis electrodes 100 is 0.3～0.6 volt/centimetre.Setting the same distance listing between adjacent two electroosmosis electrodes 100 is D centimetre, and the voltage of power supply 120 is 0.3D volt～0.6D volt.Preferably, voltage gradient is 0.5 volt/centimetre, i.e. 0.5D volt.Certainly, also need to consider the safety problem of voltage in implementation process, general voltage is no more than 100 volts.In the present embodiment, the same distance listing between adjacent two electroosmosis electrodes 100 is 1.5 meters, and 150 centimetres, therefore, the voltage that power supply 120 applies is 75 volts.
Voltage measurement meter 160 one end connect a wire 140 by wire, and the other end is by the negative pole 124 of wire connecting power 120.Described voltage measurement meter 160 can be measured the electrical potential difference between wire 140 and negative pole 124.Voltage measurement meter 160 can be universal meter or voltage meter.The electroosmosis electrode 100 that act as monitoring connection positive source of wire 140 voltage around to judge loss of voltage situation, is carried out electrode reversion in good time.That is, the electroosmosis electrode 100 that originally connected anodal 122 is connected to negative pole instead, the electroosmosis electrode 100 that originally connected negative pole 124 is made into connect anodal.When the lower voltage near connecting between wire 140 and the negative pole 124 of electroosmosis electrode 100 of power supply 120 positive poles 122 measuring when voltage measurement meter 160 is initial voltage the 50% left and right, powered-down, electrode reverses.Wire 140 and voltage measurement meter 160 act as the voltage around the electroosmosis electrode 100 that monitoring is connected positive source 122, therefore, the device that described electric osmose is processed expansive soil needs two wires 140 and two voltage measurement meters 160, like this, in the time changing the power positive cathode that electroosmosis electrode 100 connects, only need to change both positive and negative polarity that the first contact conductor 102 is connected with the second contact conductor 104 and can measure at any time the voltage around of electroosmosis electrode 100 that connects positive source.,, after the electroosmosis electrode 100 of original connection negative pole 124 makes to connect anodal 122 into, do not need to arrange after wire near of this electroosmosis electrode 100 again, then connect voltage measurement meter.In the present embodiment, voltage measurement meter 160 is universal meter, in the time connecting, and the anodal connection metal silk 140 of universal meter, the negative pole of universal meter connects the negative pole 124 of power supply 120.
Stating in the use expansive soil device electric osmose processes in the process of expansive soil, have at least three kinds of effects can reduce the expansion rate of expansive soil 10 simultaneously: first, can there is complicated chemical reaction at electroosmosis electrode 100 places that are electrically connected with the positive pole 122 of power supply 120, produce the new chemical substances such as calcium carbonate, calcium sulfate, these chemical substances can reduce the glutinous grain content of expansive soil, reduce the degree of free swelling of the soil body; Second, metal ion on the described electroosmosis electrode 100 being electrically connected with the positive pole 122 of power supply 120 enters in expansive soil, with the original sodium of expansive soil, potassium plasma panel generation ion exchange, strengthen the bond strength between expansive soil soil body lattice, reduce soil body degree of free swelling; The 3rd, under electric field action, can there is the change from flocculent structure or turbulent structure to granular packed structures in expansive soil Soil Microstructure, further reduces the degree of free swelling of expansive soil.Under above three kinds of effects, the degree of free swelling of expansive soil and index of plasticity can significantly reduce, and therefore electric osmose can play extraordinary modifying function to expansive soil.In addition, in electric osmose process, in expansive soil 10, there is moisture to ooze out, can be so that the interior discharge moisture of expansive soil 10, electric osmose itself, as a kind of method for processing foundation of discharging consolidation, can further make expansive soil 10 discharging consolidations, the intensity of raising expansive soil 10.
Electric osmose provided by the invention is processed the device of expansive soil, can utilize electric osmose and electrochemical method to process expansive soil, and electroosmosis electrode can directly be squeezed in expansive soil expansive soil is processed, and has realized the in-situ processing to actual expansive soil.Described electric osmose is processed the device of expansive soil in the time processing expansive soil, can and combine to the modified effect of expansive soil the discharging consolidation effect of electroosmotic drainage, not only can change the performance of expansive soil, and this can play to expansive soil the effect of reinforcing.Processing when expansive soil slope, except discharging consolidation and modified effect, also electrode can be stayed and in side slope, play reinforced action, further stiffened edge slope stability.And the using method of the treating apparatus of expansive soil provided by the invention is simple to operate, can realize the large-area expansive soil of direct processing.
In addition, those skilled in the art also can do other and change in spirit of the present invention, and certainly, the variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (10)
1. electric osmose is processed a device for expansive soil, and it comprises:
Multiple electroosmosis electrodes, the plurality of electroosmosis electrode is imbedded in expansive soil and is arranged and form an electrod-array, and the electroosmosis electrode in this electrod-array is arranged and is formed multirow and multiple row, mutually vertical between ranks;
One power supply, this power supply comprises positive pole and negative pole, the electroosmosis electrode of adjacent two row connects respectively positive pole and the negative pole of power supply;
Two one metal wires embed in expansive soil, and an one metal wire connects anodal electroosmosis electrode near one, and another wire is near the electroosmosis electrode of a connection negative pole; And,
Two voltage measurement meters, every one metal wire is connected with the negative pole of power supply by a voltage measurement meter respectively.
2. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, described electroosmosis electrode is metal electrode, and each electroosmosis electrode is the tubular structure of a hollow, and on tube wall, is provided with multiple through holes.
3. electric osmose as claimed in claim 2 is processed the device of expansive soil, it is characterized in that, further comprise multiple conduction filter clothes, each conduction filter cloth wraps up an electroosmosis electrode.
4. electric osmose as claimed in claim 2 is processed the device of expansive soil, it is characterized in that, the external diameter of electroosmosis electrode is 2 centimetres to 20 centimetres.
5. electric osmose as claimed in claim 2 is processed the device of expansive soil, it is characterized in that, the distance between two adjacent electroosmosis electrodes is 0.5 meter to 3 meters.
6. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, when expansive soil is an expansive soil foundation, its surface is a horizontal plane, and electroosmosis electrode is perpendicular to the surface of expansive soil.
7. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, when expansive soil is an expansive soil slope, expansive soil slope comprises a horizontal plane and a slope, and multiple electroosmosis electrodes are squeezed in slope and are parallel to the horizontal plane of expansive soil.
8. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, described material wiry is conducting metal, comprises copper, iron and silver.
9. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, the distance between described wire and electroosmosis electrode is 0.05 meter to 0.1 meter.
10. electric osmose as claimed in claim 1 is processed the device of expansive soil, it is characterized in that, universal meter is counted in described voltage measurement, and the positive pole of universal meter connects an one metal wire, and the negative pole of universal meter connects the negative pole of power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420155917.4U CN203795411U (en) | 2014-04-02 | 2014-04-02 | Device for treating swelling soil in electroosmosis manner |
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| CN201420155917.4U CN203795411U (en) | 2014-04-02 | 2014-04-02 | Device for treating swelling soil in electroosmosis manner |
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| CN203795411U true CN203795411U (en) | 2014-08-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724379A (en) * | 2017-09-21 | 2018-02-23 | 河海大学 | A kind of method of electrochemistry vacuum prepressing reinforcement soft base |
| CN110172964A (en) * | 2019-06-20 | 2019-08-27 | 中国人民解放军陆军勤务学院 | A method of based on AC field stabilized expansive soil ground |
| CN110629741A (en) * | 2019-10-08 | 2019-12-31 | 兰州交通大学 | Method for treating frost heaving and slurry turning of roadbed in frozen soil area |
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2014
- 2014-04-02 CN CN201420155917.4U patent/CN203795411U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724379A (en) * | 2017-09-21 | 2018-02-23 | 河海大学 | A kind of method of electrochemistry vacuum prepressing reinforcement soft base |
| CN110172964A (en) * | 2019-06-20 | 2019-08-27 | 中国人民解放军陆军勤务学院 | A method of based on AC field stabilized expansive soil ground |
| CN110629741A (en) * | 2019-10-08 | 2019-12-31 | 兰州交通大学 | Method for treating frost heaving and slurry turning of roadbed in frozen soil area |
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