CN107476285A - The apparatus and method of vacuum electroosmosis joint reinforcement Soft Clay Foundation - Google Patents
The apparatus and method of vacuum electroosmosis joint reinforcement Soft Clay Foundation Download PDFInfo
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- CN107476285A CN107476285A CN201710647579.4A CN201710647579A CN107476285A CN 107476285 A CN107476285 A CN 107476285A CN 201710647579 A CN201710647579 A CN 201710647579A CN 107476285 A CN107476285 A CN 107476285A
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- 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
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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- 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
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- Agronomy & Crop Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of apparatus and method of vacuum electroosmosis joint reinforcement Soft Clay Foundation, the wherein device of vacuum electroosmosis joint reinforcement Soft Clay Foundation includes annular splicing electrode pair, horizontal drain pipe and electrified wire.The annular splicing electrode pair squeezes into Soft Clay Foundation by several splicing negative electrodes and anode with annular array, and each pair anodic-cathodic is sequentially arranged at soil body different depth；The horizontal drain pipe classification connects each splicing negative electrode, and the negative electrode number that classification number is spliced with annular in electrode pair is identical；The electrified wire will be summarized in the negative pole of dc source successively after the negative electrode being arranged at soil body same depth individually connection, the positive pole of dc source will be summarized in after all depth of placement identical anodes individually connection.Soft Clay Foundation is successively handled from depths to shallow place by the device of the present invention, realizes Soft Clay Foundation along the uniform rapidly solidified of depth direction.
Description
Technical field
The invention belongs to Geotechnical Engineering field, the device of particularly a kind of vacuum-electric osmose joint reinforcement Soft Clay Foundation, with
And realize Soft Clay Foundation along the uniform rapidly solidified processing method of depth direction.
Background technology
Soft Clay Foundation has the characteristics that water content is high, clay content is high, compressibility is high low with permeability, carries out engineering and builds
If must carry out basement process before, draining concretion method is conventional Soft Clay Foundation processing method, such as vacuum preloading and electric osmose
Deng.Practice have shown that vacuum method reinforce after Soft Clay Foundation along depth direction consolidate and it is uneven, shallow-layer soil solidifying compared with
It is good, and deep soil is influenceed by factors such as horizontal and vertical drainage system silting, bendings, can not obtain effectively adding
Gu.
Although electro-osmosis method reinforces Soft Clay Foundation and has many advantages, there is also many problems, electric osmose formed from anode to
The EOF of cathode direction, how the water converged at negative electrode is discharged into the soil body turns into urgent problem to be solved.Existing draining
Mode mainly has：（1）Negative electrode uses hollow edged electrode, and drinking-water pipe is stretched into cathode tube, is discharged water using suction pump, using the party
The soil body of formula negative electrode annex is not almost thorough still in saturation state, draining；（2）Combined using conventional vacuum precompressed with electric osmose
Mode, drainage measure of the vacuum preloading as electric osmose, the problems such as which still suffers from drainage system silting, obtain deep soil
Reinforced less than effective.
The content of the invention
Goal of the invention：One purpose is to provide a kind of device of vacuum-electric osmose joint reinforcement Soft Clay Foundation, existing to solve
There is above mentioned problem existing for technology.Further objective is that providing one kind realizes that Soft Clay Foundation is uniformly quickly solid along depth direction
The processing method of knot.
Technical scheme：A kind of device of vacuum-electric osmose joint reinforcement Soft Clay Foundation, including：
Annular splicing electrode pair, including some annular splicing negative electrodes that pre-reinforcement region is placed in annular array shape splice with annular
Anode, each annular splicing negative electrode or anode include the electrode tube of multiple vertically steps arrangement；The one of the electrode tube
End extends to foundation surface, or extends to foundation surface by drainpipe；
Multigroup horizontal drain pipe, one end of every group of drainpipe extend to depth identical annular splicing negative electrode, the other end and vacuum
Pump connects；
Power supply and wire, the negative pole of power supply are connected by some wires with annular splicing negative electrode, and the positive pole of power supply is led by some
Line is connected with annular splicing anode.
According to an aspect of the present invention, quantity M=[S0/S1], S1=a × b of the annular splicing electrode pair；Wherein,
S0 is the area with reinforcing Soft Clay Foundation, and S1 is the average reinforcing area that every group of annular splices electrode pair；A is adjacent annular
Splice the centre-to-centre spacing between negative electrode and annular splicing anode, b is the centre-to-centre spacing between adjacent annular splicing negative electrode.
According to an aspect of the present invention, it is described annular splicing negative electrode and annular splicing anode between centre-to-centre spacing for 1 to
1.5 meters, the centre-to-centre spacing that adjacent annular splices between negative electrode is 1.2 to 1.6m.
According to an aspect of the present invention, in each annular splicing negative electrode or anode, quantity N=[H/L] of electrode tube or
[H/L]+1, wherein H are the depth of pre-reinforcement Soft Clay Foundation, and L is the length of electrode tube, and [] is bracket function.
According to an aspect of the present invention, the electrode tube in the annular splicing negative electrode and annular splicing anode is circular tube shaped
Electrode, the length of electrode tube are 1.5m to 2 meters, a diameter of 30 to 50mm, wall thickness is 0.5 to 2.5mm.
According to an aspect of the present invention, at least part electrode tube in the annular splicing negative electrode is spirally connected with drainpipe,
Electrode tube in the annular splicing negative electrode be circular tube shaped electrode, and some osculums are provided with along its circumference, circular tube shaped electrode outside
It is coated with geotextiles week, inwall there can be longitudinal rhone；Longitudinal rhone is provided with the inside of drainpipe；When drainpipe with
After electrode tube connection, a drainage channel is formed.
According to an aspect of the present invention, the wire of connection annular splicing negative electrode and annular splicing anode is respectively multigroup,
Processing depth identical annular splicing negative electrode is connected to power cathode, processing depth identical annular splicing sun through same root wire
Pole is connected to positive source through same root wire.
A kind of method of vacuum-electric osmose joint reinforcement Soft Clay Foundation, based on the device described in any of the above-described embodiment simultaneously
Comprise the following steps：
S1：Determine the electrode tube quantity in annular splicing electrode pair number needed for place, and annular splicing electrode pair, electrode tube
It is spirally connected with plastic drain-pipe, the wire of hollow edged electrode is connected with wire by insulation-grade self-adhesive tape and adhesive waterproof tape.
S2：One layer of woven cloth is laid on Soft Clay Foundation surface, electrode tube and plastics are vertically set into Soft Clay Foundation
The spliceosome of drainpipe composition, to precalculated position, some groups of annular splicing electrode pairs are formed, underground conducting wire bassets and earth's surface
Wire is attached, and processing depth identical electrode is independently connected by a wire.
S3：Negative electrode number in electrode pair is spliced according to annular, lays the horizontal drain pipe of identical group of number, by threeway with
The plastic drain-pipe connection of negative electrode is connected, the horizontal drain pipe that processing depth identical negative electrode is connected gangs up independent connection.
S4：Geotextiles and vacuum diaphragm are laid, forms vacuum sealing system, the wire that connection is arranged in bosom negative electrode connects
The negative pole of logical dc source, connection is arranged in the positive pole of the wire connection dc source of bosom anode, opens dc source, right
Deep layer Soft Clay Foundation carries out electric osmose processing, and the main sewer for connecting all negative electrodes of this depth at the same time is accessed into vacuum
Pump, vacuum drainage is carried out, when displacement is reduced to predetermined value, close dc source and vavuum pump.
S5：The anodic-cathodic wire for connecting last layer depth is connected with dc source again, this depth is connected and owns
The main sewer access vavuum pump of negative electrode, carries out electric osmose and vacuum drainage, so carries out stabilization by drainage to every layer soil body successively.
S6：Repeat step S4 and S5, until reaching pre-provisioning request.
In the present invention, the processing depth of each electrode tube and drainpipe is different, can be to the layering of Soft Clay Foundation at
Reason, solve the problems, such as that the existing consolidation of prior art is uneven.
Beneficial effect：The drainage arrangement and processing method of the present invention contributes to fully with reference to the excellent of electric osmose and vacuum preloading
Gesture, avoid individually reinforcing existing deficiency during Soft Clay Foundation, by successively locating Soft Clay Foundation from depths to shallow place
Reason, solve Soft Clay Foundation and uneven problem is consolidated along depth direction.It is easily operated meanwhile the present invention is simple in construction, can
Realize Soft Clay Foundation along the uniform rapidly solidified of depth direction.
Brief description of the drawings
Fig. 1 is electrifying system arrangement schematic diagram of the present invention under a certain working condition.
Fig. 2 is arrangement of Drainage schematic diagram of the present invention under a certain working condition.
Fig. 3 is the structure sectional view of apparatus of the present invention hollow cathode.
Fig. 4 is anode electrode pipe of the present invention and wire connection diagram.
Embodiment
As shown in Figure 1, there is provided a kind of device of vacuum-electric osmose joint reinforcement Soft Clay Foundation, the device mainly include ring
Shape splicing electrode pair, horizontal drain pipe and electrified wire.
Wherein, annular splicing electrode pair squeezes into Soft Clay Foundation, each pair Yin/Yang by several negative electrodes and anode with annular array
Electrode is sequentially arranged at soil body different depth；Horizontal drain pipe classification connects each splicing negative electrode, and classification number is spliced with annular
Negative electrode number in electrode pair is identical；Electrified wire will be summarized in after the negative electrode being arranged at soil body same depth individually connection successively
The negative pole of dc source, the positive pole of dc source will be summarized in after all depth of placement identical anodes individually connection.
I.e. in the present embodiment, annular splicing electrode pair includes annular splicing negative electrode and annular splicing anode, annular splicing
Negative electrode includes several sleeve cathodes, and annular splicing anode includes several sheaths.In each annular splicing negative electrode, tubular female
Pole circularizes arrangement, and is arranged on different depth, and in each annular splicing anode, sheath circularizes arrangement, and sets
Put in different depth, in a certain depth, have corresponding one group of sleeve cathode and sheath, so as to the soft clay to the depth
Ground is handled.Meanwhile depth identical sleeve cathode is connected to dc source by same root wire or different conductor
Negative electrode, depth identical sheath are connected to the anode of dc source by same root wire or different conductor.Therefore, straight
When flowing power supply power-up, processing all electrode pairs of depth identical can be loaded simultaneously, so as to handle the soft clay of the depth
Ground.
Annular splicing electrode pair is made up of annular splicing negative electrode and annular splicing anode, and annular splicing negative electrode and annular are spliced
Electrode number in anode is identical.Arrangement number of the annular splicing electrode pair in Soft Clay Foundation is by annular splicing negative electrode and ring
Shape splicing anode forms the distance between annular center point, and the distance between two adjacent annulars splicing cathode center point is certainly
It is fixed.Electrode in annular splicing negative electrode and annular splicing anode is hollow edged electrode, and each hollow edged electrode is arranged in soil body different depth
Place, by being realized after being spirally connected with plastic drain-pipe, electrode number is determined by the processing depth of Soft Clay Foundation.
In this embodiment, the quantity of annular splicing electrode pair and each annular splicing electrode are calculated according to actual condition
It is right（Annular splicing negative electrode or annular splicing anode）Middle electrode tube（Or hollow edged electrode）Quantity.In the process, it is necessary to count
The area S0 of the Soft Clay Foundation of pretreatment, and the processing area S1 of annular splicing electrode pair are calculated, is substantially needed so as to calculate
Electrode pair quantity M.In the ideal case, M=[S0/S1], S1=a × b；Wherein, S0 is the area with reinforcing Soft Clay Foundation,
S1 is the average reinforcing area that every group of annular splices electrode pair；A is between adjacent annular splicing negative electrode and annular splicing anode
Centre-to-centre spacing, b is the centre-to-centre spacing between adjacent annular splicing negative electrode.It should be noted that due under actual condition, locating in advance
The Soft Clay Foundation of reason may be irregular shape.Therefore, can be according to reality after according to the quantity of this numerical estimation electrode pair
Situation adjusts the quantity of electrode pair.In addition, in comparatively regular part, pass through certain arrangement mode, the number of electrode pair
Amount may be less than the numerical value, therefore after by increase and decrease, the quantity of electrode pair can be estimated based on this numerical value, from
And calculate the materials and cost of engineering.Secondly, it is each annular splicing negative electrode or anode in, quantity N=[H/L] of electrode tube or
[H/L]+1, wherein H are the depth of pre-reinforcement Soft Clay Foundation, and L is the length of electrode tube, and [] is bracket function.In general,
The quantity of electrode can be substantially calculated according to the depth of pretreatment and the length of electrode.In the vertical direction, the end of each electrode
Connect successively, there is the vertical distance of part reclosing or end to be less than predetermined value.So as to which in the vertical direction can cover each depth
Ground.It is ready for layered shaping Soft Clay Foundation.
Sleeve cathode has some osculums, and periphery is coated with geotechnological filter cloth, and inwall is carved with draining along tube length direction
Groove；After plastic draining inside pipe wall also has rhone, plastic drain-pipe to be spirally connected with sleeve cathode along tube length direction, two bodys
Rhone can be correspondingly formed smoothly drainage channel.Sheath includes strands of metal wire, is connected respectively with multiple core cord, prevents
Only the end of a thread is burnt out at wiring, influences electrode energization, and sleeve cathode includes one wire, is connected with single condctor, done at wiring
Good water-proofing treatment.Horizontal drain pipe is connected by threeway with vertical plastic drain-pipe, and processing depth identical negative electrode is connected
Horizontal drain pipe gangs up independent connection, reconnects vavuum pump.
In a preferred embodiment, depth identical electrode tube, drainpipe etc. are handled and forms a system, pass through direct current
Source is powered up to depth identical electrode tube, while processing depth identical drainpipe is vacuumized by vavuum pump.
A specific embodiment is described with reference to Fig. 1, array annular splicing electrode pair is vertically squeezed into Soft Clay Foundation
1, annular splicing electrode pair includes hollow cathode 2 and circular anode 3.Arrangement number of the annular splicing electrode pair in Soft Clay Foundation
Mesh by the Soft Clay Foundation area that pre-processes, annular splicing negative electrode and annular splicing anode form between annular center point away from
From, and the decision of the distance between two adjacent annulars splicing cathode center point.Annular splicing negative electrode and annular splicing anodes centre
The distance between point is 1~1.5 m, and the distance between two adjacent annulars splicing cathode center point is 1.2~1.6 m.
As shown in Fig. 2 horizontal drain pipe 5 is connected by threeway with vertical plastic drain-pipe 9, depth identical negative electrode is handled
The horizontal drain pipe connected gangs up independent connection.If Soft Clay Foundation surface area water is more, can be arranged vertically and horizontally in earth's surface
Several ripple chimney filters 11 of through connection are used to exclude surface pond.
As shown in figure 3, annular splicing negative electrode and annular splicing anode are spirally connected by electrode tube 10 and plastic drain-pipe and formed,
Cathode electrode pipe has some osculums, and periphery is coated with geotechnological filter cloth, and inwall is carved with rhone along tube length direction；Plastics
After draining inside pipe wall also has rhone, plastic drain-pipe to be spirally connected with sleeve cathode along tube length direction, the rhone of two bodys
Smoothly drainage channel can be correspondingly formed.
As shown in figures 1 and 3, wire 4 includes under ground portion and aerial part, and underground conducting wire is used to connect hollow edged electrode,
As shown in figure 4, sheath includes strands of metal wire 15, the wire for connecting sheath is multiple core cord, prevents line at wiring
Head is burnt out, and influences electrode energization, and sleeve cathode includes one wire, connected with single condctor, and water-proofing treatment is carried out in junction.
Underground conducting wire is connected with ground wire by penetrating cable clamp 14, and processing depth identical electrode is independently connected by a wire
Connect.
After above-mentioned technical proposal is finished, the work that spreads a layer of clay cloth 7, two layers of vacuum diaphragm 8, the periphery of vacuum diaphragm needs to be embedded to
In the sealing ditch on Soft Clay Foundation periphery, and it is ensured that drainpipe and wire pass the sealing problem at position.First by ripple
Chimney filter house steward connects vavuum pump 12, discharges surface pond with 30~60kPa vacuum load, treats that displacement significantly reduces, closes
Vavuum pump, connection is removed, close the mouth of pipe.The wire that connection is arranged in Soft Clay Foundation bosom anodic-cathodic again connects respectively
The negative pole and positive pole of dc source 13, open dc source and carry out electric osmose, at the same time, the draining of the depth negative electrode will be connected
House steward Guan connects vavuum pump, carries out vacuum drainage, until displacement significantly reduces, closes dc source and vavuum pump, the company of dismounting
Connect, close the mouth of pipe.The anodic-cathodic wire of last layer depth is connected into dc source, connects the drainpipe of the depth negative electrode
House steward connects vavuum pump, repeats the above steps, and so carries out electric osmose and vacuum drainage to every layer soil body successively.
Specifically, the method for vacuum of the present invention-electric osmose joint reinforcement Soft Clay Foundation mainly includes the following steps that：
S1：Determine place need annular splicing electrode pair number and annular splicing electrode pair in number of electrodes, by hollow edged electrode with
Plastic drain-pipe is spirally connected, and hollow edged electrode wire is connected with wire by insulation-grade self-adhesive tape and adhesive waterproof tape；
S2：One layer of woven cloth 6 is laid on Soft Clay Foundation surface, hollow edged electrode and plastic row are vertically set into Soft Clay Foundation
The spliceosome of water pipe composition, to precalculated position, some groups of annular splicing electrode pairs are formed, underground conducting wire bassets leads with earth's surface
Line is attached, and processing depth identical electrode is independently connected by a wire；
S3：According to annular splice electrode pair in negative electrode number, earth's surface lay identical group of number horizontal drain pipe, by threeway with
The plastic drain-pipe connection of negative electrode is connected, the horizontal drain pipe that processing depth identical negative electrode is connected gangs up independent connection；
S4：Geotextiles are laid, vacuum diaphragm, form vacuum sealing system, the wire that connection is arranged in bosom negative electrode is connected directly
The negative pole of power supply is flowed, connection is arranged in the positive pole of the wire connection dc source of bosom anode, dc source is opened, to deep layer
Soft Clay Foundation carries out electric osmose processing, and the main sewer for connecting all negative electrodes of this depth at the same time is accessed into vavuum pump, entered
Row vacuum drainage, after displacement significantly reduces, close dc source and vavuum pump.
S5：The anodic-cathodic wire for connecting last layer depth is connected with dc source again, this depth is connected and owns
The main sewer access vavuum pump of negative electrode, carries out electric osmose and vacuum drainage, so carries out stabilization by drainage to every layer soil body successively；
S6：Above-mentioned S4 and S5 can be repeated several times, until the anhydrous discharge of Soft Clay Foundation, the row of recovery after Soft Clay Foundation processing terminates
The materials such as water pipe, wire and electrode.
It should be noted that in step sl, the anodic-cathodic number in annular splicing electrode pair is respectively preferably 2~6
Root, it is preferably 0.5 m to form annular array center to the distance of electrode, and processing depth is also shallower accordingly less for electrode number,
Electrode number excessively easily makes the spacing between adjacent electrode diminish, and can be had an impact between each other during setting.
In step s3, as Soft Clay Foundation surface area water is more, can in earth's surface several ripple chimney filters of through connection in length and breadth,
First vavuum pump is connected with ripple chimney filter house steward, opens vavuum pump, foundation surface product is excluded with 30~60 kPa vacuum load
Water, after the completion of i.e. released connection, close the mouth of pipe；
In step s 4, need to measure displacement using gauge table in soil body processing procedure, and then calculate drainage rates, the layer soil body
The length of processing time depends on the change of displacement, when displacement or drainage rates are reduced to 1/ of numerical value when just starting draining
10, you can carry out the processing of next layer soil body.
In a word, the apparatus and method of vacuum provided by the invention-electric osmose joint reinforcement Soft Clay Foundation have advantages below：
First, if Soft Clay Foundation is dried layer by 1.5~2.0 m points by the device, vacuum-electric osmose connection is successively carried out from depths to shallow place
Close and reinforce, assisted drainage measure of the vacuum preloading as electric osmose, the water converged at negative electrode can fully be discharged, if this layer of soil
There is the problems such as silting in the drainage system of body, and any influence is not present on the stabilization by drainage of other layer soil bodies.Second, present invention knot
Structure is simple, easily operated, and Soft Clay Foundation can be realized along the uniform rapidly solidified of depth direction.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, this
A little equivalents belong to protection scope of the present invention.
Claims (8)
- A kind of 1. device of vacuum-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that including：Annular splicing electrode pair, including some annular splicing negative electrodes that pre-reinforcement region is placed in annular array shape splice with annular Anode, each annular splicing negative electrode or anode include the electrode tube of multiple vertically steps arrangement；The one of the electrode tube End extends to foundation surface, or extends to foundation surface by drainpipe；Multigroup horizontal drain pipe, one end of every group of drainpipe extend to depth identical annular splicing negative electrode, the other end and vacuum Pump connects；Power supply and wire, the negative pole of power supply are connected by some wires with annular splicing negative electrode, and the positive pole of power supply is led by some Line is connected with annular splicing anode.
- 2. the device of vacuum as claimed in claim 1-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that the annular Splice quantity M=[S0/S1], S1=a × b of electrode pair；Wherein, S0 is the area with reinforcing Soft Clay Foundation, and S1 is every group of ring Shape splices the average reinforcing area of electrode pair；A is that adjacent annular splices negative electrode and the annular centre-to-centre spacing spliced between anode, b For the centre-to-centre spacing between adjacent annular splicing negative electrode.
- 3. the device of vacuum as claimed in claim 2-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that the annular The centre-to-centre spacing spliced between negative electrode and annular splicing anode is 1 to 1.5 meter, and the centre-to-centre spacing between adjacent annular splicing negative electrode is 1.2 to 1.6m.
- 4. the device of vacuum as claimed in claim 1-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that each annular Splice in negative electrode or anode, quantity N=[H/L] or [H/L]+1 of electrode tube, wherein H is the depth of pre-reinforcement Soft Clay Foundation, L For the length of electrode tube, [] is bracket function.
- 5. the device of vacuum as claimed in claim 4-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that the annular Electrode tube in splicing negative electrode and annular splicing anode be circular tube shaped electrode, and the length of electrode tube is 1.5m to 2 meters, a diameter of 30 To 50mm, wall thickness is 0.5 to 2.5mm.
- 6. the device of vacuum as claimed in claim 4-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that the annular At least part electrode tube in splicing negative electrode is spirally connected with drainpipe, and the electrode tube in the annular splicing negative electrode is circular tube shaped electricity Pole, some osculums are provided with along its circumference, the periphery of circular tube shaped electrode is coated with geotextiles, and inwall there can be longitudinal rhone； Longitudinal rhone is provided with the inside of drainpipe；After drainpipe is connected with electrode tube, a drainage channel is formed.
- 7. the device of vacuum as claimed in claim 1-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that connection annular It is respectively multigroup to splice the wire of negative electrode and annular splicing anode, processing depth identical annular splicing negative electrode is through same root wire Power cathode is connected to, processing depth identical annular splicing anode is connected to positive source through same root wire.
- 8. the method for a kind of vacuum-electric osmose joint reinforcement Soft Clay Foundation, it is characterised in that based on any one of claim 1 to 7 Described device simultaneously comprises the following steps：S1：Determine the electrode tube quantity in annular splicing electrode pair number needed for place, and annular splicing electrode pair, electrode tube It is spirally connected with plastic drain-pipe, the wire of electrode tube is connected with wire by insulation-grade self-adhesive tape and adhesive waterproof tape；S2：One layer of woven cloth is laid on Soft Clay Foundation surface, electrode tube and plastic draining are vertically set into Soft Clay Foundation The spliceosome of pipe composition, to precalculated position, some groups of annular splicing electrode pairs are formed, underground conducting wire bassets and earth's surface wire It is attached, processing depth identical electrode is independently connected by a wire；S3：Negative electrode number in electrode pair is spliced according to annular, the horizontal drain pipe of identical group of number is laid, by threeway with being connected The plastic drain-pipe connection of negative electrode, the horizontal drain pipe that processing depth identical negative electrode is connected gang up independent connection；S4：Geotextiles and vacuum diaphragm are laid, forms vacuum sealing system, the wire that connection is arranged in bosom negative electrode is connected directly The negative pole of power supply is flowed, connection is arranged in the positive pole of the wire connection dc source of bosom anode, dc source is opened, to deep layer Soft Clay Foundation carries out electric osmose processing, and the main sewer for connecting all negative electrodes of this depth at the same time is accessed into vavuum pump, entered Row vacuum drainage, when displacement is reduced to predetermined value, close dc source and vavuum pump；S5：The Yin/Yang electrode cable for connecting last layer depth is connected with dc source again, connects all negative electrodes of this depth Main sewer access vavuum pump, carry out electric osmose and vacuum drainage, stabilization by drainage so carried out to every layer soil body successively；S6：Repeat step S4 and S5, until reaching pre-provisioning request.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109137882A (en) * | 2018-08-29 | 2019-01-04 | 中国港湾工程有限责任公司 | The method for processing foundation of Full-automatic variable-frequency formula vacuum pre-pressed joint electric osmose |
| CN109465290A (en) * | 2019-01-07 | 2019-03-15 | 南通大学 | System and processing method for repairing heavy metal pollution soil |
| WO2019227906A1 (en) * | 2018-05-30 | 2019-12-05 | 山东交通学院 | Electro-osmosis treatment method for reducing moisture content of roadbed, and road structure |
| CN113897943A (en) * | 2021-11-15 | 2022-01-07 | 江苏科技大学 | Device and method for treating soft soil foundation through electroosmosis combined grouting |
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