CN108181197A - It is a kind of for judging to become silted up, the device and method of the best Intervention Timing of sludge soil electric osmose - Google Patents
It is a kind of for judging to become silted up, the device and method of the best Intervention Timing of sludge soil electric osmose Download PDFInfo
- Publication number
- CN108181197A CN108181197A CN201810044942.8A CN201810044942A CN108181197A CN 108181197 A CN108181197 A CN 108181197A CN 201810044942 A CN201810044942 A CN 201810044942A CN 108181197 A CN108181197 A CN 108181197A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- electroosmosis
- model cylinder
- draining
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 48
- 239000010802 sludge Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005370 electroosmosis Methods 0.000 claims abstract description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000009471 action Effects 0.000 claims abstract description 32
- 229920005479 Lucite® Polymers 0.000 claims description 29
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 29
- 238000000926 separation method Methods 0.000 claims description 22
- 229920004933 Terylene® Polymers 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000000875 corresponding effect Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses one kind for judging to become silted up, the device of the best Intervention Timing of sludge soil electric osmose, including vacuum pump, five-way valve, electroosmosis model cylinder, vacuum action model cylinder, the energization electroosmosis model cylinder of vacuum+persistently, vacuum+intermittently power-on electroosmosis model cylinder, the invention also discloses one kind for judging to become silted up, the method of the best Intervention Timing of sludge soil electric osmose, the present invention can implement the silt/sludge soil vacuum electroosmosis Combined Trials being achieved under multiple and different experiment conditions by 1 time, can electric osmose the best use opportunity under vacuum electroosmosis synergy be obtained by experimental result.It the experiment conditions such as different voltages can also be measured between the test object of different water cut, the test object of variable grain grading, different step modes, the material of different draining cathode/draining anode poles, draining cathode and draining anode pole simultaneously.
Description
Technical field
The present invention relates to geotechnical engineering, environmental science and engineering fields, and in particular to one kind is for judging to become silted up, sludge soil electricity
The device of best Intervention Timing is oozed, is further related to a kind of for judgement silt, the method for the best Intervention Timing of sludge soil electric osmose.Be applicable in but
When being not limited to test various types of weak soils, silt soil, Polluted Soil electric osmose most preferably intervening in electric osmose and vacuum combined effect
The judgement of machine.
Background technology
In recent years, on the one hand domestic each great river, river, lake siltation are serious, are badly in need of dredging, on the other hand by the ultra-soft of hydraulic reclamation
The soil that silt soil is formed urgently needs to be developed and used, to alleviate land supply or the growing lance of traffic pressure
Shield.The lacustrine facies barged-in fill of dredging has high-moisture percentage, high void ratio, hypotonicity, high sticky content, high-compressibility and ultralow strong
The features such as feature of degree and bearing capacity, and consolidation needs for a long time under dead weight, the processing of such super soft foundation has become
An important ring in engineering construction, core technology problem are how quick, efficient, economically carry out processing reinforcing.
For such blowing-filling sludge place ground, due to engineering specifications, the limitation of the factors such as sand source constrains traditional vacuum
The application of preloading method instead the vacuum preloading processing method without sand bedding course.The method eliminates conventional vacuum preloading method
In horizontal drainage sand bedding course, the vertical plastic drain bar in soft base is directly connected to vacuum exhaust pipe, play save sand material,
Reduction expense shortens the effect for reinforcing the duration.But the soil strength of this technical finesse increases limited, ground effective reinforcement depth
Small, foundation bearing capacity is still relatively low, and main cause includes that sticky content is excessively high leads to the serious silting of vertical drainage plate, draining system
Vacuum degree local losses is big in system, vertical drainage body bending degree is big etc..Above-mentioned reason reduces the draining effect of drainage system
Rate causes no sand bedding course Vacuum Preloading Method for Consolidation of Soft Soil Foundation to show the phenomenon that early period is with obvious effects, the later stage is weak, therefore still
Improvement need to be improved.
The 1930s, electroosmosis technology was applied in reinforcement of soft soil by Casagrande, strong to improve the shearing resistance of the soil body
Degree and stability.Mainly the soft clay of hydraulic permeability coefficient big, low to fine particle content is only needed smaller using electric osmose
The characteristics of potential gradient just can generate relatively large pore water seepage flow.Electroosmosis technology is introduced into the quick-discharging consolidation of weak soil
As feasible thinking.But under simple electroosmosis, it is many that anode can nearby reduce soil body contraction generation because of moisture content
Microcrack causes interface resistance drastically to become larger, and power consumption is serious.It is generally acknowledged that under vacuum preloading-electric osmose synergy, vacuum
Load is approximately spheric stress to the active force of the soil body, and the soil body is squeezed, therefore advantageously reduce microcrack to centre.Electric osmose-true
Empty precompressed composite algorithm has apparent advantage in soft soil foundation.
Vacuum method and electro-osmosis method have relatively strong complementarity, and the two combination, which can reach, to improve soil body treatment effect, changes
The target of kind soil body process uniformity.But when these researchs are there is no considering that electric osmose-vacuum preloading compound tense electric osmose most preferably intervenes
Between put problem, what is certain is that, electric osmose is not that more early intervention is better, and intervenes more efficient discharging consolidation is not achieved too late
Purpose, therefore be highly desirable to develop a kind of for judgement silt, the device and method of the best Intervention Timing of sludge soil electric osmose.
Invention content
It is a kind of for judgement silt, sludge soil it is an object of the invention in view of the above-mentioned problems existing in the prior art, provide
The device of the best Intervention Timing of electric osmose, additionally provide it is a kind of for judging to become silted up, the method for the best Intervention Timing of sludge soil electric osmose, can
For judging the best Intervention Timing of the silt under vacuum pressure field-field coupling/sludge soil electric osmose.
It is a kind of for judging to become silted up, the device of the best Intervention Timing of sludge soil electric osmose, including vacuum pump, further include electroosmosis
Energization electroosmosis model cylinder, vacuum+the intermittently power-on electroosmosis model of model cylinder, vacuum action model cylinder, vacuum+persistently
Cylinder, electroosmosis model cylinder, vacuum action model cylinder, vacuum+persistently energization electroosmosis model cylinder, vacuum+intermittently power-on electricity
It oozes action model cylinder and includes lucite cylinder, draining cathode, base channel, stent, bottom plate, PVC diversion pipes, draining anode and work
Seben,
Lucite cylinder is arranged on by stent on bottom plate, and piston plate is provided in lucite cylinder,
Draining cathode and draining anode are hollow cylinder electrode, and draining cathode and draining anode are every along its length
Spacing setpoint distance is circumferentially being uniformly arranged several circular holes, and draining cathode and draining anode external bind the permeable filter of terylene
Cloth,
The bottom surface of lucite cylinder is provided with several base channels, and the groove top of base channel is covered with PVC head covers with holes, with holes
Terylene permeable filter cloth is covered on PVC head covers, the bottom center of lucite cylinder is provided with center charge for remittance groove, center charge for remittance groove
Slot bottom offer slot bottom water outlet, each base channel is connected with center charge for remittance groove, and draining cathode is along lucite cylinder
Inner wall is circumferentially distributed, and draining anode is arranged on the central axis of lucite cylinder, and the bottom end of draining cathode is connected with base channel, row
The bottom end of water anode is connected with center charge for remittance groove,
It is connected at the top of PVC diversion pipes with slot bottom water outlet,
The PVC diversion pipes of electroosmosis model cylinder pass sequentially through the first moisture trap, the first on-off control valve Men Yuwu
Port valve connects；
The PVC diversion pipes of vacuum action model cylinder pass sequentially through the second moisture trap, the second on-off control valve Men Yuwu
Port valve connects；
The PVC diversion pipes of energization electroosmosis model cylinder of vacuum+persistently pass sequentially through third moisture trap, third break-make
Control valve is connect with five-way valve；
The PVC diversion pipes of vacuum+intermittently power-on electroosmosis model cylinder pass sequentially through the 4th moisture trap, the 4th break-make
Control valve is connect with five-way valve；
Five-way valve is connect with vacuum pump.
Draining cathode connects cathode wire, and cathode wire is successively through base channel, center charge for remittance groove, slot bottom water outlet, PVC
Diversion pipe is drawn；
Draining anode jointed anode conducting wire, positive wire is successively through base channel, center charge for remittance groove, slot bottom water outlet, PVC
Diversion pipe is drawn,
Cathode wire and positive wire are connect respectively with the positive and negative both ends of rectifier.
The moisture trap of first moisture trap~the 4th includes gas-water separation chamber, gas-water separation chamber stent and electronics
Claim, gas-water separation chamber is arranged on by gas-water separation chamber stent on electronic scale, and the bottom of gas-water separation chamber is transparent with a scale
Water collection chamber, be provided with separator import and separator outlet at the top of gas-water separation chamber.
Piston plate edge is provided with groove, the embedded rubber washer in groove the inside；There is cover board at the top of lucite cylinder, cover board is with tightly
Fixing bolt at the top of lucite cylinder with fixing.
Draining cathode and draining anode are arranged in parallel and overhead height is identical.
It is a kind of for judging to become silted up, the method for the best Intervention Timing of sludge soil electric osmose, include the following steps：
Step 1, electroosmosis model cylinder, vacuum action model cylinder, vacuum+persistently energization electroosmosis model cylinder, vacuum+
In intermittently power-on electroosmosis model cylinder place etc. weight mud；
Initial Voltage Value between draining anode in electroosmosis model cylinder and draining cathode is set as electricity by step 2
Pressure setting value simultaneously keeps voltage constant, closes the first on-off control valve so that vacuum pump disconnects the company with the first moisture trap
It is logical；
Initial Voltage Value between draining anode in vacuum action model cylinder and draining cathode is set as 0V and is kept
Voltage is constant, opens the second on-off control valve so that vacuum pump is connected with the second moisture trap；
Initial Voltage Value setting between draining anode and draining cathode in the energization electroosmosis model cylinder of vacuum+persistently
It for voltage setting value and keeps voltage constant, opens third on-off control valve so that vacuum pump is connected with third moisture trap；
The voltage between draining anode and draining cathode in vacuum+intermittently power-on electroosmosis model cylinder is periodically logical
Piezoelectric voltage opens the 4th on-off control valve so that vacuum pump is connected with the 4th moisture trap；
Step 3, record the moisture trap of the first moisture trap~the 4th at each record moment in gas-water separation chamber
Middle water volume, while the reading of the electronic scale in the moisture trap of the first moisture trap~the 4th is recorded, obtain electroosmosis
Energization electroosmosis model cylinder, vacuum+the intermittently power-on electroosmosis model cylinder of model cylinder, vacuum+persistently correspond at the record moment
Drainage rates；
Step 4 is respectively less than when the reading variation of the electronic scale in the moisture trap of the first moisture trap~the 4th
During 0.01g/h, vacuum pump and rectifier are closed；
Step 5, draw the energization electroosmosis model cylinder of electroosmosis model cylinder, vacuum action model cylinder, vacuum+persistently,
M- drainage rates curve when vacuum+intermittently power-on electroosmosis model cylinder is corresponding, electroosmosis model cylinder, vacuum+persistently lead to
M- drainage rates curve is relative to vacuum when electric electroosmosis model cylinder, vacuum+intermittently power-on electroosmosis model cylinder are corresponding
Action model cylinder as best Intervention Timing at the time of the catastrophe point of m- drainage rates curve corresponds to when corresponding.
Mud moisture content is less than or equal to 100%, and the height of corresponding draining cathode and draining anode is mud height
60%；Mud moisture content is more than 100% and less than or equal to 300%, and the height of corresponding draining cathode and draining anode is to become silted up
The 50% of mud height；Mud moisture content is more than 300% and less than or equal to 600%, corresponding draining cathode and draining anode lengths
It is the 40% of mud height.
It is V that electroosmosis model cylinder, which is defined, in the drainage rates of moment ja(j), vacuum action model cylinder is defined in moment j
Drainage rates be Vb(j), it is V to define the energization electroosmosis model cylinder of vacuum+persistently in the drainage rates of moment jc(j), it defines
Vacuum+intermittently power-on electroosmosis model cylinder is V in the drainage rates of moment jd(j), calculate electroosmosis model cylinder, vacuum+
Persistently energization electroosmosis model cylinder, vacuum+intermittently power-on electroosmosis model cylinder are in the corresponding drainage rates increments hundred of moment j
Divide and compare ΔEi(j),I ∈ { a, c, d }, j are the moment；
When first time ΔEi(j) more than or equal to 2% at the time of j is that catastrophe point corresponds at the time of corresponding when, as electric osmose
Energization electroosmosis model cylinder, vacuum+the intermittently power-on electroosmosis model cylinder of action model cylinder, vacuum+persistently are corresponding best
Intervention Timing point.
The present invention has the advantages that relative to the prior art：It can implement to be achieved with by 1 time multiple and different
Silt/sludge soil vacuum-electric osmose Combined Trials under experiment condition can be obtained by experimental result in vacuum electroosmosis synergy
Under electric osmose the best use opportunity.It simultaneously can also be to the test object of different water cut, the test object of variable grain grading, no
Different voltages etc. between step mode together, the material of different draining cathode/draining anode poles, draining cathode and draining anode pole
Experiment condition measures.
Description of the drawings
Fig. 1 is the connection diagram of the present invention；
Fig. 2 for the energization electroosmosis model cylinder/vacuum of electroosmosis model cylinder/vacuum action model cylinder/vacuum+persistently+
The structure diagram of intermittently power-on electroosmosis model cylinder；
Fig. 3 is the overlooking the structure diagram of lucite cylinder；
Fig. 4 is the cross-sectional view of base channel；
Fig. 5 is the structure diagram of moisture trap (the first~the 4th moisture trap)；
The when m- draining speed that Fig. 6 is vacuum action model cylinder 100b and vacuum+intermittently power-on electroosmosis model cylinder 100d
The comparison diagram of rate time-history curves.
In figure：100a- electroosmosis model cylinders；100b- vacuum action model cylinders；The energization electric osmose of 100c- vacuum+persistently is made
With model cylinder；100d- vacuum+intermittently power-on electroosmosis model cylinder；
The first moisture traps of 200a-；The second moisture traps of 200b-；200c- third moisture traps；200d- the 4th
Moisture trap；
300- vacuum pumps；301- gas-guide tubes；302- five-way valves；
101- lucite cylinders；102- draining cathodes；The 103- high-moisture percentage soil bodys；104- base channels；104a- PVC with holes
Head cover；104b- terylene permeable filter cloths；105a- cathode wires；105b- positive wires；106- rectifiers；107- stents；108- bottoms
Plate；109-PVC diversion pipes；110- draining anodes；111- piston plates；112- rubber washers；113- fastening bolts；114- cover boards；
201- gas-water separation chambers；201a- water collection chambers；202- electronic scales；203- gas-water separation chamber stents；204- separators go out
Mouthful；205- separator imports.
Specific embodiment
Technical scheme of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment 1：
It is a kind of for judging to become silted up, the device of the best Intervention Timing of sludge soil electric osmose, including vacuum pump 300, further include electric osmose
Action model cylinder 100a, vacuum action model cylinder 100b, vacuum+persistently energization electroosmosis model cylinder 100c, vacuum+interval are logical
Electric electroosmosis model cylinder 100d.
Electroosmosis model cylinder 100a connects the separator import of the first moisture trap 200a, the first air water by hose
The separator outlet of separator 200a is connected again by being provided with the hose of the first on-off control valve with five-way valve 302；
Vacuum action model cylinder 100b connects the separator import of the second moisture trap 200b, the second air water by hose
The separator outlet of separator 200b is connected again by being provided with the hose of the second on-off control valve with five-way valve 302；
The energization electroosmosis model cylinder 100c of vacuum+persistently passes through the separator that hose connects third moisture trap 200c
Import, the separator outlet of third moisture trap 200c is again by being provided with the hose and five-way valve of third on-off control valve
302 are connected；
Vacuum+intermittently power-on electroosmosis model cylinder 100d connects the separator of the 4th moisture trap 200d by hose
Import, the separator outlet of moisture trap 200d is again by being provided with the hose of the 4th on-off control valve and 302 phase of five-way valve
Even；
Five-way valve 302 is connected by gas-guide tube 301 with vacuum pump 300.
Wherein:
The energization electroosmosis model cylinder of electroosmosis model cylinder 100a, vacuum action model cylinder 100b, vacuum+persistently
The structure of 100c, vacuum+intermittently power-on electroosmosis model cylinder 100d are identical, and include：Lucite cylinder 101, draining are cloudy
Pole 102, the high-moisture percentage soil body 103, base channel 104, cathode wire 105a, positive wire 105b, rectifier 106, stent 107,
Bottom plate 108, PVC diversion pipes 109, draining anode 110, piston plate 111, rubber washer 112, fastening bolt 113 and cover board 114.
Its connection mode is：Lucite cylinder 101 is arranged on by stent 107 on bottom plate 108, in lucite cylinder 101
The high-moisture percentage soil body 103 (mud) is placed, is provided with piston plate 111 in lucite cylinder 101,111 edge of piston plate is provided with recessed
Slot, the embedded rubber washer 112 in groove the inside；Cover board 114 arranged at the top of lucite cylinder 101, cover board 114 with fastening bolt 113 with
Lucite cylinder 101 is fixed.
Draining cathode 102 and draining anode 110 are hollow cylinder electrode, and draining cathode 102 and draining anode 110 are equal
4 3mm circular holes circumferentially are being uniformly arranged per spacing 10mm along its length, are being tied up outside draining cathode 102 and draining anode 110
Terylene permeable filter cloth is pricked, model 130 (60-8) can be selected in terylene permeable filter cloth.
The bottom surface of lucite cylinder 101 is provided with several base channels 104, and the groove top of base channel 104 is covered with PVC with holes
Terylene permeable filter cloth 104b is covered on head cover 104a, PVC head covers 104a with holes.The bottom center of lucite cylinder 101 is provided with
Center charge for remittance groove, the slot bottom of center charge for remittance groove offer slot bottom water outlet, each base channel 104 with center charge for remittance groove
Connection, draining cathode 102 is circumferentially distributed along the inner wall of lucite cylinder 101, and draining anode 110 is arranged on lucite cylinder 101
Central axis, the bottom end of draining cathode 102 connects with base channel 104, and bottom end and the center charge for remittance groove of draining anode 110 connect
It is logical.As a preferred embodiment, draining cathode 102 and draining anode 110 are arranged in parallel and overhead height is identical.
The slot bottom water outlet that 109 top of PVC diversion pipes is opened up with the slot bottom of center charge for remittance groove connects.Draining cathode 102
Cathode wire 105a is connected, cathode wire 105a is through base channel 104, center charge for remittance groove, slot bottom water outlet, PVC diversion pipes 109
It draws.Draining anode 110 jointed anode conducting wire 105b, positive wire 105b go out through base channel 104, center charge for remittance groove, slot bottom
The mouth of a river, PVC diversion pipes 109 are drawn.PVC diversion pipes 109 pass through hose and the first moisture trap 200a or the second gas-water separation
Device 200b or third moisture trap 200c or the 4th moisture trap 200d connections.
The moisture trap 200d of first moisture trap 200a~the 4th is comprising gas-water separation chamber 201, gas-water separation chamber
Stent 203 and electronic scale 202, gas-water separation chamber 201 are arranged on by gas-water separation chamber stent 203 on electronic scale 202, air water point
Bottom from chamber 201 is transparent water collection chamber 201a with a scale, and the top of gas-water separation chamber 201 is provided with separator import
205 and separator outlet 204.
Embodiment 2
Judged using a kind of device for judgement silt, the best Intervention Timing of sludge soil electric osmose described in embodiment 1
The method of silt/best Intervention Timing of sludge soil electric osmose, includes the following steps：
Step 1, by electroosmosis model cylinder 100a, vacuum action model cylinder 100b, the energization electroosmosis mould of vacuum+persistently
The mud of the weight such as placement, and draining cathode and draining in type tube 100c, vacuum+intermittently power-on electroosmosis model cylinder 100d
The height of anode is according to mud water-cut variation, and mud moisture content is less than or equal to 100%, corresponding draining cathode and draining anode
Height be the 60% of mud height；Mud moisture content is more than 100% and less than or equal to 300%, corresponding draining cathode with
The height of draining anode is the 50% of mud height；Mud moisture content is more than 300% and less than or equal to 600%, corresponding row
Water cathode and draining anode lengths are the 40% of mud height；
In the present embodiment, the initial aqueous rate of mud is 160%, corresponding draining cathode and the height of draining anode
It is the 50% of mud height, grain size is 0.075-0.005mm particles accounting 51.4% in mud, and grain size is less than of 0.005mm
Grain accounting 46.5, the particle accounting 2.1% of other grain sizes in mud.
Step 2 sets the Initial Voltage Value between the draining anode in electroosmosis model cylinder 100a and draining cathode
It for 6V and keeps voltage constant, closes the first on-off control valve so that vacuum pump 300 is disconnected with the first moisture trap 200a's
Connection；
Initial Voltage Value between draining anode in vacuum action model cylinder 100b and draining cathode is set as 0V simultaneously
It keeps voltage constant, opens the second on-off control valve so that vacuum pump 300 is connected with the second moisture trap 200b；
The Initial Voltage Value between draining anode and draining cathode in the energization electroosmosis model cylinder 100c of vacuum+persistently
It is set as 6V and keeps voltage constant, open third on-off control valve so that vacuum pump 300 and third moisture trap 200c connects
It is logical；
The Initial Voltage Value between draining anode and draining cathode in vacuum+intermittently power-on electroosmosis model cylinder 100d
It is set as 6V, the voltage between draining anode and draining cathode in vacuum+intermittently power-on electroosmosis model cylinder 100d is week
Phase property power-on voltage, the voltage being often powered between 1 hour cut-out draining anode and draining cathode 1 hour, opens the 4th break-make control
Valve processed so that vacuum pump 300 is connected with the 4th moisture trap 200d；
Vacuum pump 300 sets negative pressure value as -100kPa.
Step 3, record the moisture trap 200d of the first moisture trap 200a~the 4th at each record moment in gas
Water volume in water disengagement chamber 201, while record the electronics in the moisture trap 200d of the first moisture trap 200a of electricity~the 4th
The reading of title；Obtain electroosmosis model cylinder 100a, vacuum+persistently energization electroosmosis model cylinder 100c, vacuum+intermittently power-on
Electroosmosis model cylinder 100d is in record moment corresponding drainage rates；
Step 4, when the reading variation of the electronic scale in the moisture trap 200d of the first moisture trap 200a~the 4th it is equal
During less than 0.01g/h, vacuum pump 300 and rectifier 106 are closed；
Step 5, drafting electroosmosis model cylinder 100a, vacuum action model cylinder 100b, vacuum+be persistently powered electroosmosis
M- drainage rates curve when model cylinder 100c, vacuum+intermittently power-on electroosmosis model cylinder 100d are corresponding, electroosmosis mould
Type tube 100a, vacuum+persistently energization electroosmosis model cylinder 100c, vacuum+intermittently power-on electroosmosis model cylinder 100d are corresponded to
When m- drainage rates curve relative to vacuum action model cylinder 100b m- drainage rates curves when corresponding catastrophe point pair
As best Intervention Timing at the time of answering.
It is V that electroosmosis model cylinder 100a, which is defined, in the drainage rates of moment ja(j), vacuum action model cylinder 100b is defined
It is V in the drainage rates of moment jb(j), the energization electroosmosis model cylinder 100c of vacuum+persistently is defined in the drainage rates of moment j
For Vc(j), it is V to define vacuum+intermittently power-on electroosmosis model cylinder 100d in the drainage rates of moment jd(j), electric osmose is calculated to make
With model cylinder 100a, energization electroosmosis model cylinder 100c, vacuum+the intermittently power-on electroosmosis model cylinder 100d of vacuum+persistently
In the corresponding drainage rates increment percentage Δs of moment jEi(j),I ∈ { a, c, d }, when j is
It carves；
When first time ΔEi(j) more than or equal to 2% at the time of j is that catastrophe point corresponds at the time of corresponding when, as electric osmose
Energization electroosmosis model cylinder 100c, vacuum+the intermittently power-on electroosmosis model cylinder of action model cylinder 100a, vacuum+persistently
The corresponding best Intervention Timing points of 100d.
Embodiment 3
It is respectively 60% or 80% or 150% or 200% that mud in step 1 in embodiment 2 is replaced with moisture content
Or 250% or 300% or 600% mud, repeat step 1~step 4 in embodiment 2, obtain different initial aqueous rates soil
The best Intervention Timing of the electric osmose of sample.
Embodiment 4
The setting negative pressure value of vacuum pump 300 in step 2 in embodiment 2 is respectively set as -90kPa or -80kPa
Or -60kPa or -50kPa, step 1~step 4 in embodiment 2 is repeated, obtains the electric osmose of different initial aqueous rate soil samples most
Good Intervention Timing.
Embodiment 5
By electroosmosis model cylinder 100a, the energization electroosmosis model cylinder of vacuum+persistently in the step 2 in embodiment 2
The Initial Voltage Value between draining anode and draining cathode in 100c, vacuum+intermittently power-on electroosmosis model cylinder 100d is set
It is set to 12V or 20V or 28V or 36V, repeatedly step 1~step 4 in embodiment 2, electric osmose is best under acquisition different voltages value
Intervention Timing.
Embodiment 6
By the silt soil in above-mentioned steps 1 using variable grain grading, step 1~step 4 is repeated, can obtain different
Grade matches the best Intervention Timing of electric osmose of the soil body.
Specific embodiment described herein is only to present invention explanation for example.The technical field of the invention
Technical staff can do described specific embodiment various modifications or additions or replacement, but not deviate the present invention
Marrow or surmount the range defined outside the appended claims.
Claims (8)
1. it is a kind of for judging the device of silt, the best Intervention Timing of sludge soil electric osmose, including vacuum pump (300), which is characterized in that
Further include the energization electroosmosis model cylinder of electroosmosis model cylinder (100a), vacuum action model cylinder (100b), vacuum+persistently
(100c), vacuum+intermittently power-on electroosmosis model cylinder (100d), electroosmosis model cylinder (100a), vacuum action model cylinder
Energization electroosmosis model cylinder (100c), vacuum+the intermittently power-on electroosmosis model cylinder (100d) of (100b), vacuum+persistently are equal
Include lucite cylinder (101), draining cathode (102), base channel (104), stent (107), bottom plate (108), PVC diversion pipes
(109), draining anode (110) and piston plate (111),
Lucite cylinder (101) is arranged on by stent (107) on bottom plate (108), and piston is provided in lucite cylinder (101)
Plate (111),
Draining cathode (102) and draining anode (110) are hollow cylinder electrode, draining cathode (102) and draining anode
(110) several circular holes, draining cathode (102) and draining sun are circumferentially being uniformly arranged per spacing setpoint distance along its length
Pole (110) is external to bind terylene permeable filter cloth,
The bottom surface of lucite cylinder (101) is provided with several base channels (104), and the groove top of base channel (104) is covered with holes
PVC head covers (104a), terylene permeable filter cloth is covered on PVC head covers (104a) with holes, and the bottom center of lucite cylinder (101) sets
Center charge for remittance groove is equipped with, the slot bottom of center charge for remittance groove offers slot bottom water outlet, and each base channel (104) is converged with center
Water groove connects, and draining cathode (102) is circumferentially distributed along the inner wall of lucite cylinder (101), and draining anode (110) has been arranged on
The central axis of machine glass infuser (101), the bottom end of draining cathode (102) are connected with base channel (104), draining anode (110)
Bottom end is connected with center charge for remittance groove,
It is connected at the top of PVC diversion pipes (109) with slot bottom water outlet,
The PVC diversion pipes of electroosmosis model cylinder (100a) pass sequentially through the first moisture trap (200a), the control of the first break-make
Valve is connect with five-way valve (302)；
The PVC diversion pipes of vacuum action model cylinder (100b) pass sequentially through the second moisture trap (200b), the control of the second break-make
Valve is connect with five-way valve (302)；
The PVC diversion pipes of energization electroosmosis model cylinder (100c) of vacuum+persistently pass sequentially through third moisture trap (200c),
Third on-off control valve door is connect with five-way valve (302)；
The PVC diversion pipes of vacuum+intermittently power-on electroosmosis model cylinder (100d) pass sequentially through the 4th moisture trap (200d),
4th break-make control valve is connect with five-way valve (302)；
Five-way valve (302) is connect with vacuum pump (300).
2. according to claim 1 a kind of for judging the device of silt, the best Intervention Timing of sludge soil electric osmose, feature exists
In draining cathode (102) connects cathode wire (105a), and cathode wire (105a) is recessed through base channel (104), center charge for remittance successively
Slot, slot bottom water outlet, PVC diversion pipes (109) are drawn；
Draining anode (110) jointed anode conducting wire (105b), positive wire (105b) is successively through base channel (104), center charge for remittance
Groove, slot bottom water outlet, PVC diversion pipes (109) are drawn,
The positive and negative both ends of cathode wire (105a) and positive wire (105b) respectively with rectifier (106) are connect.
3. according to claim 1 a kind of for judging the device of silt, the best Intervention Timing of sludge soil electric osmose, feature exists
In the first moisture trap (200a)~the 4th moisture trap (200d) is comprising gas-water separation chamber (201), air water
Disengagement chamber stent (203) and electronic scale (202), gas-water separation chamber (201) are arranged on electronics by gas-water separation chamber stent (203)
On scale (202), the bottom of gas-water separation chamber (201) is transparent water collection chamber (201a) with a scale, gas-water separation chamber (201)
Top is provided with separator import (205) and separator outlet (204).
4. according to claim 1 a kind of for judging the device of silt, the best Intervention Timing of sludge soil electric osmose, feature exists
In the piston plate (111) edge is provided with groove, the embedded rubber washer (112) in groove the inside；Lucite cylinder (101) is pushed up
There is cover board (114) in portion, and cover board (114) fastening bolt (113) at the top of lucite cylinder (101) with fixing.
5. according to claim 1 a kind of for judging the device of silt, the best Intervention Timing of sludge soil electric osmose, feature exists
In the draining cathode (102) is arranged in parallel with draining anode (110) and overhead height is identical.
It is 6. a kind of for judgement silt, the method for the best Intervention Timing of sludge soil electric osmose, which is characterized in that include the following steps：
The energization electroosmosis model of step 1, electroosmosis model cylinder (100a), vacuum action model cylinder (100b), vacuum+persistently
Cylinder (100c), the mud for the weight such as placing in vacuum+intermittently power-on electroosmosis model cylinder (100d)；
Initial Voltage Value between draining anode in electroosmosis model cylinder (100a) and draining cathode is set as by step 2
Voltage setting value simultaneously keeps voltage constant, closes the first on-off control valve so that vacuum pump (300) disconnects and the first gas-water separation
The connection of device (200a)；
Initial Voltage Value between draining anode in vacuum action model cylinder (100b) and draining cathode is set as 0V and is protected
It is constant to hold voltage, opens the second on-off control valve so that vacuum pump (300) is connected with the second moisture trap (200b)；
The Initial Voltage Value between draining anode and draining cathode in the energization electroosmosis model cylinder (100c) of vacuum+persistently is set
It is set to voltage setting value and keeps voltage constant, open third on-off control valve so that vacuum pump (300) and third gas-water separation
Device (200c) connects；
The voltage between draining anode and draining cathode in vacuum+intermittently power-on electroosmosis model cylinder (100d) is periodically
Power-on voltage opens the 4th on-off control valve so that vacuum pump (300) is connected with the 4th moisture trap (200d)；
Step 3, the gas in each record moment record the first moisture trap (200a)~the 4th moisture trap (200d)
Water volume in water disengagement chamber (201), while record in the first moisture trap (200a)~the 4th moisture trap (200d)
The reading of electronic scale, obtain electroosmosis model cylinder (100a), vacuum+persistently energization electroosmosis model cylinder (100c), vacuum+
Intermittently power-on electroosmosis model cylinder (100d) is in record moment corresponding drainage rates；
Step 4, when the reading variation of the electronic scale in the first moisture trap (200a)~the 4th moisture trap (200d) it is equal
During less than 0.01g/h, vacuum pump (300) and rectifier (106) are closed；
Step 5, drafting electroosmosis model cylinder (100a), vacuum action model cylinder (100b), vacuum+be persistently powered electroosmosis
M- drainage rates curve when model cylinder (100c), vacuum+intermittently power-on electroosmosis model cylinder (100d) are corresponding, electric osmose are made
With model cylinder (100a), energization electroosmosis model cylinder (100c), vacuum+the intermittently power-on electroosmosis model cylinder of vacuum+persistently
(100d) when corresponding m- drainage rates curve relative to vacuum action model cylinder (100b) it is corresponding when m- drainage rates it is bent
As best Intervention Timing at the time of the catastrophe point of line corresponds to.
7. according to a kind of for judging the method for silt, the best Intervention Timing of sludge soil electric osmose in claim 6, feature exists
In mud moisture content is less than or equal to 100%, and the height of corresponding draining cathode and draining anode is the 60% of mud height；
Mud moisture content is more than 100% and less than or equal to 300%, and the height of corresponding draining cathode and draining anode is mud height
50%；Mud moisture content is more than 300% and less than or equal to 600%, and corresponding draining cathode is to become silted up with draining anode lengths
The 40% of mud height.
8. according to a kind of for judging the method for silt, the best Intervention Timing of sludge soil electric osmose in claim 6, feature exists
In,
It is V that electroosmosis model cylinder (100a), which is defined, in the drainage rates of moment ja(j), vacuum action model cylinder (100b) is defined
It is V in the drainage rates of moment jb(j), draining speed of the energization electroosmosis model cylinder (100c) of vacuum+persistently in moment j is defined
Rate is Vc(j), it is V to define vacuum+intermittently power-on electroosmosis model cylinder (100d) in the drainage rates of moment jd(j), electricity is calculated
Ooze energization electroosmosis model cylinder (100c), vacuum+the intermittently power-on electroosmosis mould of action model cylinder (100a), vacuum+persistently
Type tube (100d) is in the corresponding drainage rates increment percentage Δs of moment jEi(j),i∈{a,c,
D }, j is the moment；
When first time ΔEi(j) more than or equal to 2% at the time of j is that catastrophe point corresponds at the time of corresponding when, as electroosmosis
Energization electroosmosis model cylinder (100c), vacuum+the intermittently power-on electroosmosis model cylinder of model cylinder (100a), vacuum+persistently
(100d) corresponding best Intervention Timing point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044942.8A CN108181197B (en) | 2018-01-17 | 2018-01-17 | Device and method for judging optimal intervention time of silt and sludge electroosmosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044942.8A CN108181197B (en) | 2018-01-17 | 2018-01-17 | Device and method for judging optimal intervention time of silt and sludge electroosmosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108181197A true CN108181197A (en) | 2018-06-19 |
| CN108181197B CN108181197B (en) | 2023-12-12 |
Family
ID=62550861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810044942.8A Active CN108181197B (en) | 2018-01-17 | 2018-01-17 | Device and method for judging optimal intervention time of silt and sludge electroosmosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108181197B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813603A (en) * | 2009-12-25 | 2010-08-25 | 清华大学 | Soil body osmotic coefficient measurement method and device based on electroosmosis |
| CN102393404A (en) * | 2011-09-15 | 2012-03-28 | 王军 | Large model test box for studying electroosmosis consolidation treated soft soil foundation |
| CN202421109U (en) * | 2012-01-11 | 2012-09-05 | 清华大学 | Vacuum and electro-osmosis united consolidometer |
| CN102704463A (en) * | 2012-06-27 | 2012-10-03 | 河海大学 | Vacuum pre-compaction and electro-osmosis combined reinforcing device and method for muck foundation |
| CN103245770A (en) * | 2013-04-19 | 2013-08-14 | 河海大学 | Electroosmosis-vacuum-loading combined consolidometer |
| CN103335876A (en) * | 2013-06-24 | 2013-10-02 | 河海大学 | Remoulding soft clay sample preparation device and method based on vacuum combined electron-osmosis effect |
| CN104131549A (en) * | 2014-06-16 | 2014-11-05 | 武汉河海泽地电渗科技有限公司 | Electro-osmotic drainage consolidation method for electrode pipes |
| 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 |
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by vacuum electroosmosis combined dynamic load |
| CN206311604U (en) * | 2016-12-26 | 2017-07-07 | 湖北水总水利水电建设股份有限公司 | The device of silt/sludge dehydration speed under the conditions of a kind of test multiple physical field |
| CN207798725U (en) * | 2018-01-17 | 2018-08-31 | 湖北水总水利水电建设股份有限公司 | It is a kind of become silted up, sludge soil vacuum-electric osmose Combined Trials test device |
-
2018
- 2018-01-17 CN CN201810044942.8A patent/CN108181197B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813603A (en) * | 2009-12-25 | 2010-08-25 | 清华大学 | Soil body osmotic coefficient measurement method and device based on electroosmosis |
| CN102393404A (en) * | 2011-09-15 | 2012-03-28 | 王军 | Large model test box for studying electroosmosis consolidation treated soft soil foundation |
| CN202421109U (en) * | 2012-01-11 | 2012-09-05 | 清华大学 | Vacuum and electro-osmosis united consolidometer |
| CN102704463A (en) * | 2012-06-27 | 2012-10-03 | 河海大学 | Vacuum pre-compaction and electro-osmosis combined reinforcing device and method for muck foundation |
| CN103245770A (en) * | 2013-04-19 | 2013-08-14 | 河海大学 | Electroosmosis-vacuum-loading combined consolidometer |
| CN103335876A (en) * | 2013-06-24 | 2013-10-02 | 河海大学 | Remoulding soft clay sample preparation device and method based on vacuum combined electron-osmosis effect |
| CN104131549A (en) * | 2014-06-16 | 2014-11-05 | 武汉河海泽地电渗科技有限公司 | Electro-osmotic drainage consolidation method for electrode pipes |
| 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 |
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by vacuum electroosmosis combined dynamic load |
| CN206311604U (en) * | 2016-12-26 | 2017-07-07 | 湖北水总水利水电建设股份有限公司 | The device of silt/sludge dehydration speed under the conditions of a kind of test multiple physical field |
| CN207798725U (en) * | 2018-01-17 | 2018-08-31 | 湖北水总水利水电建设股份有限公司 | It is a kind of become silted up, sludge soil vacuum-electric osmose Combined Trials test device |
Non-Patent Citations (2)
| Title |
|---|
| 王军;王逸杰;刘飞禹;符洪涛;胡秀青;: "间歇式真空预压联合电渗加固吹填软土试验", 中国公路学报, no. 10 * |
| 王柳江;刘斯宏;汪俊波;徐伟;: "真空预压联合电渗法处理高含水率软土模型试验", 河海大学学报(自然科学版), no. 06 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108181197B (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104878760B (en) | A kind of side slope is from draining electric osmose anchor pole and construction method | |
| CN106192982B (en) | A method of the electric osmose soil stake based on tubulose ekg electrode handles soft base | |
| CN107724379B (en) | A kind of method of electrochemistry-vacuum prepressing reinforcement soft base | |
| CN101838095A (en) | Quick dewatering method of bagged silt soil | |
| CN103758110B (en) | Reinforce the method for Soft Clay Foundation | |
| CN1948639A (en) | Water taking gallery of self flow type for underground reservoir | |
| CN103015401B (en) | Method and device for vacuum electro-osmotic drainage for reinforcing dredged silt soil | |
| CN111074878B (en) | Silt long type mud flat foundation reinforcing device and construction method thereof | |
| Malik et al. | Long-term successful operation of existing brackish cavity wells for ASR to improve quality for irrigation by Indian farmers | |
| CN106869108A (en) | A kind of reinforced soft soil ground processes vacuum low-level prepressing device | |
| CN207798725U (en) | It is a kind of become silted up, sludge soil vacuum-electric osmose Combined Trials test device | |
| CN108385654A (en) | A method of with electrosol combination vacuum-electric osmose reinforcing flexible foundation | |
| CN106436686B (en) | Device and Soft Clay Foundation processing unit for collecting drainage by electroosmosis and method | |
| CN109972608B (en) | Combined type soft foundation drainage consolidation system and method | |
| CN108181197A (en) | It is a kind of for judging to become silted up, the device and method of the best Intervention Timing of sludge soil electric osmose | |
| CN106638629A (en) | Device for greening slope of loess slope | |
| CN105926577B (en) | Vacuum preloading seepage consolidation method | |
| CN106013046B (en) | Varying stress path well point plastic strip vacuum preloading seepage consolidation hierarchical loading method | |
| CN105970909B (en) | Well point plastic strip vacuum preloading seepage consolidation joint precipitating, pre-pressing dynamic consolidation method | |
| CN209760220U (en) | Be used for newly dredger fill to add system of consolidating again | |
| CN212001021U (en) | Soft soil foundation reinforcing structure in dredger fill area | |
| CN204676521U (en) | A kind of consolidating mud soil electrochemical modification hardened system | |
| CN1293263C (en) | Method of soft ground treatment using high vacuum variable energy cross tampering | |
| CN103866758B (en) | A kind of vacuum electroosmosis combination electrode | |
| CN109162271A (en) | Drain bar, hardened system and reinforcement means for reinforcing soft ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |