CN110355197A - A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing - Google Patents
A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing Download PDFInfo
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- CN110355197A CN110355197A CN201910681298.XA CN201910681298A CN110355197A CN 110355197 A CN110355197 A CN 110355197A CN 201910681298 A CN201910681298 A CN 201910681298A CN 110355197 A CN110355197 A CN 110355197A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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Abstract
A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing, belongs to Polluted Soil Treatment process field, is based on soil agitation mixer, and medicament and the pollution soil body are carried out uniformly well-mixed construction method using following steps: construction site prepares；Pollute soil mass property pre-detection；Primary dcreening operation pollutes the soil body；The detection pollution soil body；To pollution the soil body into be stirred processing；Pollute soil body maintenance；Soil body backfill is polluted, construction is completed.The present invention handles variety classes Polluted Soil respectively, reduces dosing and processing cost, achieve the effect that specific aim is administered by carrying out pre-detection to Polluted Soil；The treatment process of Polluted Soil carries out in closed equipment, reduces the dust pollution in treatment process；By novel pollution soil processing method, greatly mixes medicament and Polluted Soil, increase contact area between the two, be conducive to the progress of chemical reaction.
Description
Technical field
The present invention relates to Polluted Soil Treatment process fields, are related specifically to one kind and carry out at solidification and stabilization to the pollution soil body
The construction method of reason.
Background technique
Soil be plant growth breeding natural base, be agricultural basic production resource, be it is for the survival of mankind and
Its important natural resources, with industry, the increase of the aggravation of municipal pollution and agrochemicals type, quantity, soil is dirty
Dye is got worse, and soil pollution is just being increasingly subject to the wide of countries in the world as the problem of restriction human social
General concern.Soil pollution has the characteristics that chronicity and irreversibility, and the harmful substance in soil accumulates to a certain extent not only
It will lead to soil degradation, crop yield and quality decline, but also runoff, leaching loss contaminating action surface water and ground can be passed through
It is lauched, deteriorates hydrological environment, soil pollution causes time pollution to underground water, surface water, passes through drinking water or soil-department of botany
System enters human body via food chain and jeopardizes human health.
Currently, pollution administration soil studies more mainly security landfill, fire burning, solidification and stabilization etc. skills at present
Art.It wherein, the use of more curing and stabilizing agent include cement, lime, sulfide and phosphate, and technique mostly uses simply
Concrete curing forming method.The technical matters has the following problems: (1) solidification and stabilization effect is poor, and heavy metal is present in
In solidified body, under acidic environment and load action, long-range circumstances risk is prominent；(2) additive amount of curing agent is high, generally exists
30% or more, solidified body increase-volume phenomenon is serious, results in the waste of resource and the energy；Stabilizer it is expensive, heavy metal is steady
Surely it is high to change processing cost, and with the raising of soil contamination grade, solidification and stabilization processing cost is huger；(3) it constructed
Cheng Fenchen, water pollution are serious, and secondary pollution phenomenon exists.
Therefore, existing Polluted Soil solidification and stabilization processing technique technique falls behind relatively, results in Polluted Soil remediation efficiency
Lowly, at high cost, secondary pollution and environmental risk are big.Since existing gelling curing agent, macromolecule stabilizer are more, technology compared with
Maturation, urgent need develop a kind of effective solidification stabilization process to improve Polluted Soil solidification and stabilization repairing effect, are based on this, this
Invention proposes a kind of construction method that solidification and stabilization processing is carried out to the pollution soil body.
Summary of the invention
For the above-mentioned technical problems in the prior art, the invention proposes one kind solidify surely to the pollution soil body
The construction method of fixedization processing, overcomes the deficiencies in the prior art.By carrying out pre-detection to Polluted Soil, variety classes are polluted
Soil is handled respectively, reduces dosing and processing cost, achievees the effect that specific aim is administered；The treatment process of Polluted Soil is being sealed
It is carried out in the equipment closed, reduces the dust pollution in treatment process, be conducive between medicament and Polluted Soil uniform mixes；Pass through
Novel pollution soil processing method greatly mixes medicament and Polluted Soil, increases contact area between the two, have
Conducive to the progress of chemical reaction.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing, which is characterized in that is stirred and is set based on soil
It is standby, medicament and the pollution soil body are subjected to uniformly well-mixed construction method using following steps:
Step 1: construction site prepares, construction equipment configuration and transformation；Successively by vibrosieve device, preposition transmission creeper truck, mixed
Blender, postposition transmission creeper truck series connection are closed, vibrosieve device is to drive with horizontal plane to there is 10-30 degree to incline by vibration excitor
Angle, the sieve that sieve diameter is 5cm vibrate, so that the stone by diameter greater than 5cm sieves away, and the pollution soil body are carried out just
Step dispersion；Moisture tester is arranged in top in the middle part of preposition transmission creeper truck, and lower section setting weight passes in the middle part of preposition transmission creeper truck
Sensor, moisture tester and weight sensor can measure respectively covers the pollution soil body on preposition transmission creeper truck setting length crawler belt
Moisture content and weight；Mixing and blending machine is encapsulating structure, pollutes the soil body by preposition transmission creeper truck and is transferred into mixing
Machine entrance, continuous helical conveying blade and interval plate stirring blade are respectively set in mixing and blending machine, and the pollution soil body can be mixed
It closes and carries out high-speed stirred in blender, and be sufficiently mixed with additive, postposition transmission creeper truck is mainly used for the dirt that will be handled well
The dye soil body is sent to specified region；
Step 2: pollution soil mass property pre-detection；The untreated pollution soil body is sampled, Preliminary Determination pollutes the flat of the soil body
Equal moisture content is a1, and is tentatively classified to the pollution soil body, including cohesive soil, non-cohesive soil, cohesive soil and non-cohesive soil
Composite soil；If a1 is greater than curing and stabilizing agent required standard moisture content, the pollution soil body is dried, until a1 small
In or equal to curing and stabilizing agent required standard moisture content lower limit value when, then start carry out pollution soil body solidification and stabilization
Construction operation；
Step 3: primary dcreening operation pollutes the soil body；The pollution soil body is placed in vibrosieve device and is sieved, vibrosieve in work progress
The exciting force of vibration excitor is 20-200kN, frequency 5-2000Hz, maximum displacement 50mm in device, by the vibration of vibration excitor and
Stone of the screening of sieve by diameter greater than 5cm sieves away, carries out at solidification and stabilization to the pollution soil body and small size stone
Reason；
Step 4: the detection pollution soil body；When the pollution soil body after screening passes through preposition transmission creeper truck, by moisture tester, again
Quantity sensor carries out dynamic monitoring to the moisture content of the pollution soil body of middle part setting track length b and weight on preposition creeper truck,
Obtaining instantaneous moisture content is a2, and instantaneous weight g, the transmission speed v1 range of preposition transmission creeper truck is 0m/min-45m/
Min, it is known that the length L range of preposition creeper truck is 5-20m, then can calculate instantaneous transfer ability W=g/b* of preposition creeper truck
v1；
Step 5: to pollution the soil body into be stirred processing；The pollution soil body is delivered to after preposition transmission creeper truck completes detection
Mixing and blending machine entrance, the pollution soil body successively pass through conveying blade and stirring blade, and conveying blade and stirring blade are arranged same
In a piece shaft, shaft rotation speed is 20-500r/min；Medicament is respectively set in position among stirring blade and conveying blade
Jet port, pure water jet nozzle and soil dispersing agent jet port, medicament injection rate is referring to setting incorporation percentage B, in conjunction with preceding
Set the instantaneous transfer ability W of creeper truck, it may be determined that injection rate C=W* B of medicament；Pure water injection rate is referring to solidification and stabilization
The standard aqueous rate D of medicament design of scheme is a2 in conjunction with the instantaneous transfer ability W of preposition creeper truck and instantaneous moisture content, can be true
Determine injection rate E=W*(D-a2 of medicament)；Soil dispersing agent uses ionic surfactant, the injection rate of soil dispersing agent
For the 0%-5% of Polluted Soil weight, mass ratio of the injection rate of soil dispersing agent in the pollution soil body is set as R, then can determine
Injection rate F=W*R of soil dispersing agent；The pollution soil body successively passes through conveying blade, medicament ejector mouth, pure water jet nozzle, soil
After earth dispersing agent jet port, stirring blade, postposition is sent to by mixing and blending machine outlet and transmits creeper truck；
Step 6: pollution soil body maintenance；The pollution soil body after improvement is transported to specified region after postposition transmits creeper truck, presses
Standard curing is carried out under set environment according to Construction Design Schemes；
Step 7: construction is completed in pollution soil body backfill；After the completion of polluting soil body maintenance, backfilled after detection is up to standard, if not
It is up to standard, it repeats step 2 and is finished to step 6 until being backfilled completely after the completion of detection, then complete construction operation.
Preferably, if the pollution soil body is cohesive soil, the injection rate of soil dispersing agent is the 1%-2% of Polluted Soil weight,
If the pollution soil body is non-cohesive soil, the injection rate of soil dispersing agent is the 0.2%-0.5% of Polluted Soil weight, if the pollution soil body
For cohesive soil and non-cohesive soil composite soil when, the injection rate of soil dispersing agent is the 0.5%-1% of Polluted Soil weight.
Preferably, the diameter range of continuous helical conveying blade and interval plate stirring blade is in the mixing and blending machine
0.5-3.0m。
Preferably, the sieve uses high strength stainless steel material, and yield strength is greater than 300MPa.
Preferably, the transmission speed of the postposition transmission creeper truck should be greater than the transmission speed of preposition transmission creeper truck.
Advantageous effects brought by the present invention:
(1) by carrying out pre-detection to Polluted Soil, variety classes Polluted Soil is handled respectively, reduces dosing and is processed into
This, achievees the effect that specific aim is administered；(2) treatment process of Polluted Soil carries out in closed equipment, reduces treatment process
In dust pollution, be conducive between medicament and Polluted Soil uniform mixes；(3) by novel pollution soil processing method, greatly
Limit mixes medicament and Polluted Soil, increases contact area between the two, is conducive to the progress of chemical reaction.(4) originally
It is easy to operate, adaptable to invent the method provided, can directly be administered in contaminated soil place, be equally applicable to happen suddenly
The emergency processing reparation of property great environmental contamination accident.
Detailed description of the invention
Fig. 1 is a kind of flow chart for the construction method that solidification and stabilization processing is carried out to the pollution soil body of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment invention is further described in detail:
Embodiment 1:
To the place of organic pollution, the processing of Polluted Soil is carried out using the processing method that the present invention introduces, wherein the place is
Clay geology, it is shown that specific step is as follows:
As shown in Figure 1, a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body, which is characterized in that be based on soil
Medicament and the pollution soil body are carried out uniformly well-mixed construction method using following steps by agitation mixer:
Step 1: construction site prepares, construction equipment configuration and transformation；Successively by vibrosieve device, preposition transmission creeper truck, mixed
Blender, postposition transmission creeper truck series connection are closed, vibrosieve device is to drive to have 25 degree of inclination angles, sieve with horizontal plane by vibration excitor
The sieve that bore dia is 5cm vibrates, so that the stone by diameter greater than 5cm sieves away, and the pollution soil body is tentatively divided
It dissipates；Moisture tester is arranged in top in the middle part of preposition transmission creeper truck, and weight sensor is arranged in lower section in the middle part of preposition transmission creeper truck,
Moisture tester and weight sensor can measure respectively covers the aqueous of the pollution soil body on preposition transmission creeper truck setting length crawler belt
Rate and weight；Mixing and blending machine is encapsulating structure, and the pollution soil body is transferred into mixing and blending machine by preposition transmission creeper truck and enters
Mouthful, continuous helical conveying blade and interval plate stirring blade are respectively set in mixing and blending machine, the pollution soil body can be stirred in mixing
It mixes and carries out high-speed stirred in machine, and be sufficiently mixed with additive, postposition transmission creeper truck is mainly used for the Polluted Soil that will be handled well
Body is sent to specified region；
Step 2: pollution soil mass property pre-detection；The untreated pollution soil body is sampled, Preliminary Determination pollutes the flat of the soil body
Equal moisture content is a1, and is tentatively classified to the pollution soil body, including cohesive soil, non-cohesive soil, cohesive soil and non-cohesive soil
Composite soil；If a1 is greater than curing and stabilizing agent required standard moisture content, the pollution soil body is dried, until a1 small
In or equal to curing and stabilizing agent required standard moisture content lower limit value when, then start carry out pollution soil body solidification and stabilization
Construction operation；
Step 3: primary dcreening operation pollutes the soil body；The pollution soil body is placed in vibrosieve device and is sieved, vibrosieve in work progress
The exciting force of vibration excitor is 100kN, frequency 1000Hz, maximum displacement 50mm, vibration and sieve by vibration excitor in device
Screening diameter sieve away greater than the stone of 5cm, to the pollution soil body and the progress solidification and stabilization processing of small size stone；
Step 4: the detection pollution soil body；When the pollution soil body after screening passes through preposition transmission creeper truck, by moisture tester, again
Quantity sensor carries out dynamic monitoring to the moisture content of the pollution soil body of middle part setting track length b and weight on preposition creeper truck,
Obtaining instantaneous moisture content is a2, and instantaneous weight g, the transmission speed v1 of preposition transmission creeper truck is 5m/min, it is known that preposition shoe
Length L with vehicle is 15m, then can calculate instantaneous transfer ability W=g/b*v1 of preposition creeper truck；
Step 5: to pollution the soil body into be stirred processing；The pollution soil body is delivered to after preposition transmission creeper truck completes detection
Mixing and blending machine entrance, the pollution soil body successively pass through conveying blade and stirring blade, and conveying blade and stirring blade are arranged same
In a piece shaft, shaft rotation speed is 300r/min；Medicament spray is respectively set in position among stirring blade and conveying blade
Loophole, pure water jet nozzle and soil dispersing agent jet port, medicament injection rate is referring to setting incorporation percentage B, in conjunction with preposition
The instantaneous transfer ability W of creeper truck, it may be determined that injection rate C=W* B of medicament；Pure water injection rate is referring to solidification and stabilization medicine
The standard aqueous rate D of agent design of scheme is a2 in conjunction with the instantaneous transfer ability W of preposition creeper truck and instantaneous moisture content, it may be determined that
Injection rate E=W*(D-a2 of medicament)；Soil dispersing agent uses ionic surfactant, and the injection rate of soil dispersing agent is
The 1.5% of Polluted Soil weight sets mass ratio of the injection rate of soil dispersing agent in the pollution soil body as R, then can determine soil
Injection rate F=W*R of dispersing agent；The pollution soil body successively passes through conveying blade, medicament ejector mouth, pure water jet nozzle, soil point
After powder jet port, stirring blade, postposition is sent to by mixing and blending machine outlet and transmits creeper truck；
Step 6: pollution soil body maintenance；The pollution soil body after improvement is transported to specified region after postposition transmits creeper truck, presses
Standard curing is carried out under set environment according to Construction Design Schemes；
Step 7: construction is completed in pollution soil body backfill；After the completion of polluting soil body maintenance, backfilled after detection is up to standard, if not
It is up to standard, it repeats step 2 and is finished to step 6 until being backfilled completely after the completion of detection, then complete construction operation.
Preferably, the injection rate of soil dispersing agent is the 1.5% of Polluted Soil weight.
Preferably, the diameter of continuous helical conveying blade and interval plate stirring blade is in the mixing and blending machine
1.5m。
Preferably, the sieve uses high strength stainless steel material, yield strength 400MPa.
Preferably, the transmission speed of the postposition transmission creeper truck should be greater than the transmission speed of preposition transmission creeper truck.
After processing method of the invention, the content of organics in Polluted Soil reduces 99%, and regulation effect is significant.
Embodiment 2:
To the place of heavy metal pollution, the processing of Polluted Soil is carried out using the processing method that the present invention introduces, wherein the place is
Non- cohesive soil geology, it is shown that specific step is as follows:
As shown in Figure 1, a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body, which is characterized in that be based on soil
Medicament and the pollution soil body are carried out uniformly well-mixed construction method using following steps by agitation mixer:
Step 1: construction site prepares, construction equipment configuration and transformation；Successively by vibrosieve device, preposition transmission creeper truck, mixed
Blender, postposition transmission creeper truck series connection are closed, vibrosieve device is to drive to have 25 degree of inclination angles, sieve with horizontal plane by vibration excitor
The sieve that bore dia is 5cm vibrates, so that the stone by diameter greater than 5cm sieves away, and the pollution soil body is tentatively divided
It dissipates；Moisture tester is arranged in top in the middle part of preposition transmission creeper truck, and weight sensor is arranged in lower section in the middle part of preposition transmission creeper truck,
Moisture tester and weight sensor can measure respectively covers the aqueous of the pollution soil body on preposition transmission creeper truck setting length crawler belt
Rate and weight；Mixing and blending machine is encapsulating structure, and the pollution soil body is transferred into mixing and blending machine by preposition transmission creeper truck and enters
Mouthful, continuous helical conveying blade and interval plate stirring blade are respectively set in mixing and blending machine, the pollution soil body can be stirred in mixing
It mixes and carries out high-speed stirred in machine, and be sufficiently mixed with additive, postposition transmission creeper truck is mainly used for the Polluted Soil that will be handled well
Body is sent to specified region；
Step 2: pollution soil mass property pre-detection；The untreated pollution soil body is sampled, Preliminary Determination pollutes the flat of the soil body
Equal moisture content is a1, and is tentatively classified to the pollution soil body, including cohesive soil, non-cohesive soil, cohesive soil and non-cohesive soil
Composite soil；If a1 is greater than curing and stabilizing agent required standard moisture content, the pollution soil body is dried, until a1 small
In or equal to curing and stabilizing agent required standard moisture content lower limit value when, then start carry out pollution soil body solidification and stabilization
Construction operation；
Step 3: primary dcreening operation pollutes the soil body；The pollution soil body is placed in vibrosieve device and is sieved, vibrosieve in work progress
The exciting force of vibration excitor is 150kN, frequency 1500Hz, maximum displacement 50mm, vibration and sieve by vibration excitor in device
Screening diameter sieve away greater than the stone of 5cm, to the pollution soil body and the progress solidification and stabilization processing of small size stone；
Step 4: the detection pollution soil body；When the pollution soil body after screening passes through preposition transmission creeper truck, by moisture tester, again
Quantity sensor carries out dynamic monitoring to the moisture content of the pollution soil body of middle part setting track length b and weight on preposition creeper truck,
Obtaining instantaneous moisture content is a2, and instantaneous weight g, the transmission speed v1 of preposition transmission creeper truck is 7m/min, it is known that preposition shoe
Length L with vehicle is 20m, then can calculate instantaneous transfer ability W=g/b*v1 of preposition creeper truck；
Step 5: to pollution the soil body into be stirred processing；The pollution soil body is delivered to after preposition transmission creeper truck completes detection
Mixing and blending machine entrance, the pollution soil body successively pass through conveying blade and stirring blade, and conveying blade and stirring blade are arranged same
In a piece shaft, shaft rotation speed is 400r/min；Medicament spray is respectively set in position among stirring blade and conveying blade
Loophole, pure water jet nozzle and soil dispersing agent jet port, medicament injection rate is referring to setting incorporation percentage B, in conjunction with preposition
The instantaneous transfer ability W of creeper truck, it may be determined that injection rate C=W* B of medicament；Pure water injection rate is referring to solidification and stabilization medicine
The standard aqueous rate D of agent design of scheme is a2 in conjunction with the instantaneous transfer ability W of preposition creeper truck and instantaneous moisture content, it may be determined that
Injection rate E=W*(D-a2 of medicament)；Soil dispersing agent uses ionic surfactant, and the injection rate of soil dispersing agent is
The 2% of Polluted Soil weight sets mass ratio of the injection rate of soil dispersing agent in the pollution soil body as R, then can determine soil point
Injection rate F=W*R of powder；The pollution soil body successively passes through conveying blade, medicament ejector mouth, pure water jet nozzle, soil dispersion
After agent jet port, stirring blade, postposition is sent to by mixing and blending machine outlet and transmits creeper truck；
Step 6: pollution soil body maintenance；The pollution soil body after improvement is transported to specified region after postposition transmits creeper truck, presses
Standard curing is carried out under set environment according to Construction Design Schemes；
Step 7: construction is completed in pollution soil body backfill；After the completion of polluting soil body maintenance, backfilled after detection is up to standard, if not
It is up to standard, it repeats step 2 and is finished to step 6 until being backfilled completely after the completion of detection, then complete construction operation.
Preferably, the injection rate of soil dispersing agent is the 0.4% of Polluted Soil weight.
Preferably, the diameter range of continuous helical conveying blade and interval plate stirring blade is in the mixing and blending machine
2.5m。
Preferably, the sieve uses high strength stainless steel material, yield strength 400MPa.
Preferably, the transmission speed of the postposition transmission creeper truck should be greater than the transmission speed of preposition transmission creeper truck.
Polluted Soil is administered using processing method of the invention, arsenic content reduces by 99% in soil after improvement, administers effect
Fruit is preferable.
A kind of construction method that solidification and stabilization processing is carried out to the pollution soil body of the present invention, by carrying out preliminary examination to Polluted Soil
It surveys, variety classes Polluted Soil is handled respectively, reduces dosing and processing cost, achieve the effect that specific aim is administered；It is dirty
The treatment process of dye soil carries out in closed equipment, reduces the dust pollution in treatment process, is conducive to medicament and pollution
Uniform mixing between soil；By novel pollution soil processing method, greatly mixes medicament and Polluted Soil, increase two
Contact area between person is conducive to the progress of chemical reaction.Certainly, the above description is not a limitation of the present invention, this hair
It is bright to be also not limited to the example above, variation that those skilled in the art are made within the essential scope of the present invention,
Remodeling, addition or replacement, also belong to protection scope of the present invention.
Claims (5)
1. a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body, which is characterized in that be stirred based on soil
Medicament and the pollution soil body are carried out uniformly well-mixed construction method using following steps by equipment:
Step 1: construction site prepares, construction equipment configuration and transformation；Successively by vibrosieve device, preposition transmission creeper truck, mixed
Blender, postposition transmission creeper truck series connection are closed, vibrosieve device is to drive with horizontal plane to there is 10-30 degree to incline by vibration excitor
Angle, the sieve that sieve diameter is 5cm vibrate, so that the stone by diameter greater than 5cm sieves away, and the pollution soil body are carried out just
Step dispersion；Moisture tester is arranged in top in the middle part of preposition transmission creeper truck, and lower section setting weight passes in the middle part of preposition transmission creeper truck
Sensor, moisture tester and weight sensor can measure respectively covers the pollution soil body on preposition transmission creeper truck setting length crawler belt
Moisture content and weight；Mixing and blending machine is encapsulating structure, pollutes the soil body by preposition transmission creeper truck and is transferred into mixing
Machine entrance, continuous helical conveying blade and interval plate stirring blade are respectively set in mixing and blending machine, and the pollution soil body can be mixed
It closes and carries out high-speed stirred in blender, and be sufficiently mixed with additive, postposition transmission creeper truck is mainly used for the dirt that will be handled well
The dye soil body is sent to specified region；
Step 2: pollution soil mass property pre-detection；The untreated pollution soil body is sampled, Preliminary Determination pollutes the flat of the soil body
Equal moisture content is a1, and is tentatively classified to the pollution soil body, including cohesive soil, non-cohesive soil, cohesive soil and non-cohesive soil
Composite soil；If a1 is greater than curing and stabilizing agent required standard moisture content, the pollution soil body is dried, until a1 small
In or equal to curing and stabilizing agent required standard moisture content lower limit value when, then start carry out pollution soil body solidification and stabilization
Construction operation；
Step 3: primary dcreening operation pollutes the soil body；The pollution soil body is placed in vibrosieve device and is sieved, vibrosieve in work progress
The exciting force of vibration excitor is 20-200kN, frequency 5-2000Hz, maximum displacement 50mm in device, by the vibration of vibration excitor and
Stone of the screening of sieve by diameter greater than 5cm sieves away, carries out at solidification and stabilization to the pollution soil body and small size stone
Reason；
Step 4: the detection pollution soil body；When the pollution soil body after screening passes through preposition transmission creeper truck, by moisture tester, again
Quantity sensor carries out dynamic monitoring to the moisture content of the pollution soil body of middle part setting track length b and weight on preposition creeper truck,
Obtaining instantaneous moisture content is a2, and instantaneous weight g, the transmission speed v1 range of preposition transmission creeper truck is 0m/min-45m/
Min, it is known that the length L range of preposition creeper truck is 5-20m, then can calculate instantaneous transfer ability W=g/b* of preposition creeper truck
v1；
Step 5: to pollution the soil body into be stirred processing；The pollution soil body is delivered to after preposition transmission creeper truck completes detection
Mixing and blending machine entrance, the pollution soil body successively pass through conveying blade and stirring blade, and conveying blade and stirring blade are arranged same
In a piece shaft, shaft rotation speed is 20-500r/min；Medicament is respectively set in position among stirring blade and conveying blade
Jet port, pure water jet nozzle and soil dispersing agent jet port, medicament injection rate is referring to setting incorporation percentage B, in conjunction with preceding
Set the instantaneous transfer ability W of creeper truck, it may be determined that injection rate C=W* B of medicament；Pure water injection rate is referring to solidification and stabilization
The standard aqueous rate D of medicament design of scheme is a2 in conjunction with the instantaneous transfer ability W of preposition creeper truck and instantaneous moisture content, can be true
Determine injection rate E=W*(D-a2 of medicament)；Soil dispersing agent uses ionic surfactant, the injection rate of soil dispersing agent
For the 0%-5% of Polluted Soil weight, mass ratio of the injection rate of soil dispersing agent in the pollution soil body is set as R, then can determine
Injection rate F=W*R of soil dispersing agent；The pollution soil body successively passes through conveying blade, medicament ejector mouth, pure water jet nozzle, soil
After earth dispersing agent jet port, stirring blade, postposition is sent to by mixing and blending machine outlet and transmits creeper truck；
Step 6: pollution soil body maintenance；The pollution soil body after improvement is transported to specified region after postposition transmits creeper truck, presses
Standard curing is carried out under set environment according to Construction Design Schemes；
Step 7: construction is completed in pollution soil body backfill；After the completion of polluting soil body maintenance, backfilled after detection is up to standard, if not
It is up to standard, it repeats step 2 and is finished to step 6 until being backfilled completely after the completion of detection, then complete construction operation.
2. a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body according to claim 1, feature exist
In if the pollution soil body is cohesive soil, the injection rate of soil dispersing agent is the 1%-2% of Polluted Soil weight, if the pollution soil body is
When non-cohesive soil, the injection rate of soil dispersing agent is the 0.2%-0.5% of Polluted Soil weight, if the pollution soil body be cohesive soil with it is non-
When the composite soil of cohesive soil, the injection rate of soil dispersing agent is the 0.5%-1% of Polluted Soil weight.
3. a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body according to claim 1, feature exist
In the diameter range of continuous helical conveying blade and interval plate stirring blade is 0.5-3.0m in the mixing and blending machine.
4. a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body according to claim 1, feature exist
In the sieve uses high strength stainless steel material, and yield strength is greater than 300MPa.
5. a kind of construction method for carrying out solidification and stabilization processing to the pollution soil body according to claim 1, feature exist
In the transmission speed of the postposition transmission creeper truck should be greater than the transmission speed of preposition transmission creeper truck.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910681298.XA CN110355197A (en) | 2019-07-26 | 2019-07-26 | A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing |
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| CN201910681298.XA CN110355197A (en) | 2019-07-26 | 2019-07-26 | A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing |
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| CN110355197A true CN110355197A (en) | 2019-10-22 |
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| CN201910681298.XA Pending CN110355197A (en) | 2019-07-26 | 2019-07-26 | A kind of pair of pollution soil body carries out the construction method of solidification and stabilization processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788125A (en) * | 2019-10-28 | 2020-02-14 | 武汉科技大学 | Be used for prosthetic solidification stabilization system of soil |
| CN111266397A (en) * | 2020-04-13 | 2020-06-12 | 北京中岩大地科技股份有限公司 | Polluted soil treatment system and application method thereof |
| CN113732050A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil solidification and stabilization treatment system and process |
| CN114225805A (en) * | 2021-11-04 | 2022-03-25 | 河海大学 | Automatic waste soil crushing device and intelligent material mixing method |
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2019
- 2019-07-26 CN CN201910681298.XA patent/CN110355197A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788125A (en) * | 2019-10-28 | 2020-02-14 | 武汉科技大学 | Be used for prosthetic solidification stabilization system of soil |
| CN110788125B (en) * | 2019-10-28 | 2022-03-04 | 武汉科技大学 | Be used for prosthetic solidification stabilization system of soil |
| CN111266397A (en) * | 2020-04-13 | 2020-06-12 | 北京中岩大地科技股份有限公司 | Polluted soil treatment system and application method thereof |
| CN111266397B (en) * | 2020-04-13 | 2024-03-29 | 北京中岩大地科技股份有限公司 | Polluted soil treatment system and use method thereof |
| CN113732050A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil solidification and stabilization treatment system and process |
| CN114225805A (en) * | 2021-11-04 | 2022-03-25 | 河海大学 | Automatic waste soil crushing device and intelligent material mixing method |
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Application publication date: 20191022 |