CN109057815A - One kind being used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system - Google Patents
One kind being used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system Download PDFInfo
- Publication number
- CN109057815A CN109057815A CN201810879725.0A CN201810879725A CN109057815A CN 109057815 A CN109057815 A CN 109057815A CN 201810879725 A CN201810879725 A CN 201810879725A CN 109057815 A CN109057815 A CN 109057815A
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- Prior art keywords
- dregs
- shield
- water
- earth pressure
- mud
- 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.)
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- 239000002351 wastewater Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 239000010865 sewage Substances 0.000 claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000013049 sediment Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 7
- 238000005201 scrubbing Methods 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims 1
- 238000004513 sizing Methods 0.000 abstract description 3
- 239000011499 joint compound Substances 0.000 description 27
- 229910000278 bentonite Inorganic materials 0.000 description 7
- 239000000440 bentonite Substances 0.000 description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 7
- 235000012970 cakes Nutrition 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000021463 dry cake Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Treatment Of Sludge (AREA)
Abstract
One kind being used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, and dregs generated in earth pressure balanced shield, EPBS work progress and sewage are effectively separated, recycled to dregs and sewage, to reduce shield-tunneling construction cost.The system includes being set to sludge-water separating system near shield machine working shaft pit, sizing mixing and slurries pumping system, press filteration system and mixing plant；Dregs, sewage enter sludge-water separating system, carry out separating and dehydrating through scalping, separation equipment, isolate a variety of particulate matters from mud；From sludge-water separating system come out after mud in a part be pumped into and size mixing and slurries pumping system, it is utilized again after modulation as sediment improvement agent, another part feeding mixing plant stirs into synchronous slurries with additive and utilizes again, remaining mud pumping is to press filteration system, fines mud cake, filters pressing water are obtained, the recycling of filters pressing water is used for this system and shield-tunneling construction.
Description
Technical field
The present invention relates to earth pressure balanced shield, EPBS constructions, in particular to a kind of to be used for earth pressure balanced shield, EPBS dregs and integrated wastewater
Reutilization system mainly solves the problems, such as earth pressure balanced shield, EPBS dregs and Sewage Environment pollution, while by dregs and dirt
Water reuse reduces shield-tunneling construction cost, increases economic efficiency.
Background technique
To ensure being normally carried out for earth pressure balanced shield, EPBS construction, the dregs that knife cutting gets off passes through sufficient sediment improvement
(sediment improvement agent is generally foam, bentonite slurry, fine grained slurries, aqueous solutions of polymers, water etc.), is interior by sediment improvement
Angle of friction is smaller, has good stream plasticity (the general slump is 14~20cm) and low permeability, through screw conveyor, skin
Band machine is exported to the slag car, is poured into pit near the starting well of ground through battery truck horizontal transport, gantry crane vertical transport, is finally dug
Pick machine entrucking, dumper are transported to Dumping Sites.Due to a part of sediment improvement agent have certain toxicity (the inside containing foaming agent,
The low-toxicity products such as polymer)；Dregs stream plasticity is good, and moisture content is high, transport difficult, and dregs can not use place, and waste is stacked excessively high
The reasons such as security risk is big, lead to that earth pressure balanced shield, EPBS dregs environmental protection is not up to standard, abandons and puts higher cost, and then seriously affect shield
Construction speed.Due to belt, transport slag car slag in tunnel during shield-tunneling construction, the originals such as shield-tunneling construction region is often cleaned
Cause causes sewage in shield tunnel more, is generally pumped to earth's surface three-level settling tank using sewage pump, sewage discharges after precipitation
It is higher to municipal sewage treatment Capability Requirement to municipal wastewater exhaust system.Earth pressure balanced shield, EPBS construction dregs abandoning is put and dirt
Water, which is discharged, brings problems to urban development, but earth pressure balanced shield, EPBS is with a variety of advantages such as its safety, quick, economy and complete
It is widelyd popularize in state's Urban Metro Construction, it is extremely urgent how to solve this problem.
Summary of the invention
It is sharp again for earth pressure balanced shield, EPBS dregs and integrated wastewater that technical problem to be solved by the invention is to provide one kind
With system, dregs generated in earth pressure balanced shield, EPBS work progress and sewage are effectively separated, to dregs and sewage
It is recycled, to reduce shield-tunneling construction cost.
It is as follows that the present invention solves technical solution used by the technical problem:
One kind of the invention is used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that: the system
Including being set to sludge-water separating system near shield machine working shaft pit, sizing mixing and slurries pumping system, press filteration system and stirring
It stands；Dregs, sewage enter sludge-water separating system, carry out separating and dehydrating through scalping, separation equipment, isolate a variety of particles from mud
Object；From sludge-water separating system come out after mud in a part be pumped into and size mixing and slurries pumping system, conduct after modulation
Sediment improvement agent utilizes again, and another part feeding mixing plant stirs into synchronous slurries with additive and utilizes again, remaining mud
It is pumped to press filteration system, obtains fines mud cake, filters pressing water, the recycling of filters pressing water is used for this system and shield-tunneling construction.
The system further includes the water filtering system being made of filter plant, outer circulation pond, and water filtering system is by filters pressing water
It is filtered into clear water, pumping outer circulation pond is used for this system and shield-tunneling construction, and extra clear water is discharged into municipal Storm Sewer Network.
The system further includes scrubbing system, and what sludge-water separating system was isolated passes through the clear water from outer circulation pond containing silt particle
Clean sand is isolated after flushing.
The system further includes cobble crushing system, before dregs enters scalping that the big partial size cobble in dregs is directly broken
For required ballast grain sizes, rubble needed for mixing concrete is directly used in after roughing.
The invention has the advantages that by sludge-water separating system, rubble system, sizing mixing and slurries pumping system, filters pressing
The combination of the multisystems such as system, water filtering system, scrubbing system, earth pressure balanced shield, EPBS dregs and sewage composition are efficiently separated, broken
Stone, sand, mud and water recycle, and efficiently solve dregs and sewage to The Surroundings in Cities pollution problem, while solving dregs
Bring security risk is put in abandoning, and can effectively reduce shield-tunneling construction cost.
Detailed description of the invention
This specification includes such as next width attached drawing:
Fig. 1 is earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system flow chart of the present invention；
Component, position and corresponding label: dregs pond 1, stone crusher 2, scalping 3, sewage pump 4, level-one rotation are shown in figure
Flow device 5, level-one dewatering screen 6, second cyclone 7, second level dewatering screen 8, sand washer 9, size-mixing tank 10, slurry can 11, filter press 12,
Filter plant 13, outer circulation pond 14, mixing plant 15.
Specific embodiment
The following further describes the present invention with reference to the drawings.
Referring to Fig.1, the present invention is a kind of is used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, including is set to
Sludge-water separating system near shield machine working shaft pit is sized mixing and slurries pumping system, press filteration system and mixing plant 15.Dregs,
Sewage enters sludge-water separating system, carries out separating and dehydrating through scalping 3, separation equipment, isolates a variety of particulate matters from mud.From mud
Water separating system come out after mud in a part be pumped into and size mixing and slurries pumping system, sediment improvement is used as after modulation
Agent utilizes again, and another part feeding mixing plant 15 stirs into synchronous slurries with additive and utilizes again, and remaining mud pumping is extremely
Press filteration system, obtains fines mud cake, filters pressing water, and the recycling of filters pressing water is used for this system and shield-tunneling construction.
Water filtering system, scrubbing system, cobble crushing system are as optional system.
Referring to Fig.1, the sludge-water separating system includes dregs pond 1, scalping 3, sewage pump 4 and by level-one cyclone 5, level-one
The separation equipment that dewatering screen 6, second cyclone 7, second level dewatering screen 8 are constituted.It is described size mixing and slurries pumping system include size mixing
Pond 10, slurry can 11, the press filteration system include filter press 12.
Dregs is pumped into sludge-water separating system by sewage pump 4 from the excavation of active well pit, sewage by excavator, through scalping
3, level-one separation equipment (level-one cyclone 5, level-one dewatering screen 6), the second-order separation equipment (second cyclone 7, second level dewatering screen 8)
Respectively by coarseparticulate, sand, superfine particulate matter separating and dehydrating (moisture content < 25%) and efficiently used (coarseparticulate as only
There is boulder and cobble, sale is directly transported by transport vehicle；Coarseparticulate is that clod then directlys adopt dumper fortune with superfine particulate matter etc.
It walks to discard；Sand directly can be used or be sold).Mud a part that sludge-water separating system is separated is pumped to size-mixing tank
10, add appropriate bentonite, ultra-fine grain (the dry cake that press filteration system is press-filtered out) or water to carry out slurries modulation, through slush pump, pipeline
It send to slurry can 11 in shield trolley, then send to progress sediment improvement in front of cutterhead through bentonite pump, a plurality of pipeline (using this
Mud carries out sediment improvement, does not use foam).Mud another part enters mixing plant 15, be added bentonite, flyash, sand,
The materials such as cement, the water of filtering, additive stir into synchronous slurries, are used for shield-tunneling construction synchronous grouting.Sludge-water separating system point
Separate out the extra mud come and be pumped to press filteration system through slush pump, fines through filter press 12 be pressed into mud cake (moisture content <
25%) it, is directly transported by dumper and discards or utilize.Filters pressing water is filtered into clear water, pumped back outer circulation water through water filtering system
Pond 14 is used for this system and shield-tunneling construction, and extra clear water is discharged into municipal Storm Sewer Network.
Cobble crushing system can be selected in this system when shield-tunneling construction sand-pebble layer, by dregs before dregs enters scalping 3
In big partial size cobble be directly broken for required ballast grain sizes, rubble needed for mixing concrete is directly used in after roughing.Muddy water
If the sand that separation system level-one separation equipment is isolated is more containing mud, scrubbing system can be selected.If press filteration system is discharged
For clear water, water filtering system can not be selected to be filtered simultaneously direct reuse to water outlet.
Referring to Fig.1, water filtering system is made of filter plant 13, outer circulation pond 14, and water filtering system is by filters pressing water mistake
Filter is clear water, and pumping outer circulation pond 14 is re-used for this system and shield-tunneling construction, and extra clear water is discharged into municipal Storm Sewer Network.Institute
It states scrubbing system and generally uses sand washer 9, what level-one dewatering screen 6 was isolated is sent into sand washer 9 containing silt particle, through coming from outer circulation water
The clear water in pond 14 isolates clean sand after rinsing.The cobble crushing system generally uses stone crusher 2.
A kind of course of work for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system of the invention is as follows:
1, the dregs in dregs pond 1 is put into stone crusher 2 by excavator, and the boulder and cobble in dregs is broken into and wants by stone crusher
The rubble (general 5~40mm) for seeking partial size, then falls directly into scalping 3.；
2, sewage is pumped directly in scalping 3 through sewage pump 1, pipeline；
3, coarseparticulate (being greater than 5mm) is dehydrated by dregs and sewage through scalping 3 sifts out (coarseparticulate moisture content < 25%),
Coarseparticulate can directly transport (rubble can be used or sell, other to discard)；
4, the mud after scalping 3 is directly pumped through level-one cyclone 5 to level-one dewatering screen 6, is 74um~5mm by partial size
Sand sieve go out (moisture content < 25%), sand can directly transport sale or reuse.The sand sifted out such as level-one dewatering screen 6 containing mud compared with
It is more, the water phase in the outer circulation pond 14 pumped containing silt particle with centrifugal water pump is mixed, it is clear again that sand washer 9 will contain silt particle
It washes, clean sand utilizes again, and the sewage that washed-out sand generates is pumped directly to second cyclone 7.
5, the remaining mud of level-one dewatering screen 6 is pumped by sewage pump send through second cyclone 7 to second level dewatering screen 8, by partial size
(moisture content < 25%) is sifted out for the superfine particulate matter of 20~74um, superfine particulate matter is directly transported and discarded；
6, the remaining mud a part of second level dewatering screen 8 is pumped to size-mixing tank 10, and part bentonite is added or filters pressing generates
Ultra-fine grain mud cake, water etc. is modulated into mud needed for sediment improvement, and is pumped to the slurry of the storage in shield machine trolley by slush pump
Tank 11.When shield driving, (bubble is not used using being improved in front of bentonite pump pumping mud to cutterhead to cutting dregs
Foam carries out sediment improvement)；
7, the remaining mud another part of second level dewatering screen 8 is pumped to mixing plant 15, and bentonite, sand, flyash, water is added
The materials such as mud, the water of filtering, additive, stir into synchronous slurries, are used for shield-tunneling construction synchronous grouting；
8, the remaining mud redundance of second level dewatering screen 8 is pumped to filter press 12, through high pressure filters pressing, fines object (<
It 20um) is directly pressed into mud cake (moisture content < 25%), can directly transport and discard.The water that filters pressing generates was carried out through filter plant 13
Then filter is pumped directly to outer circulation pond 14 (for this system and shield-tunneling construction), redundance is emitted into municipal rain pipe
Net；
9, more dry to ground dregs when transporting, when scalping 3 can not efficiently separate, using centrifugal pump by outer circulation pond 14
Interior clear water is pumped in dregs hole, and dregs is diluted and is separated again.
This system each section device capability is designed with the highest-capacity of dregs during shield-tunneling construction and sewage discharge,
To meet needs of constructing.Dregs and sewage are in addition to coarseparticulate, superfine particulate matter and fines object part discard, and major part is all
It can effectively utilize, while be saved needed for sediment improvement foaming agent, synchronous serum portion material, shield-tunneling construction with water etc. again,
Dregs and sewage are efficiently solved to The Surroundings in Cities pollution problem, while solving dregs abandoning and putting bring security risk, and
And it can effectively reduce shield-tunneling construction cost.
The above only explains through diagrams, and the present invention is a kind of to be recycled for earth pressure balanced shield, EPBS dregs and integrated wastewater
The some principles and function of system are not intended to for the present invention being confined in shown and described specific structure and the scope of application,
Therefore all corresponding modifications that may be utilized and equivalent belong to the applied the scope of the patents of the present invention.
Claims (7)
1. one kind is used for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that: the system includes being set to
Sludge-water separating system near shield machine working shaft pit is sized mixing and slurries pumping system, press filteration system and mixing plant (15)；Slag
Soil, sewage enter sludge-water separating system, carry out separating and dehydrating through scalping (3), separation equipment, isolate a variety of particles from mud
Object；From sludge-water separating system come out after mud in a part be pumped into and size mixing and slurries pumping system, conduct after modulation
Sediment improvement agent utilizes again, and another part feeding mixing plant (15) stirs into synchronous slurries with additive and utilizes again, remaining
Mud pumping obtains fines mud cake, filters pressing water, the recycling of filters pressing water is used for this system and shield-tunneling construction to press filteration system.
2. it is as described in claim 1 a kind of for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that:
The system further includes the water filtering system being made of filter plant (13), outer circulation pond (14), and water filtering system is by filters pressing water
It is filtered into clear water, pumping outer circulation pond (14) is used for this system and shield-tunneling construction, and extra clear water is discharged into municipal Storm Sewer Network.
3. it is as claimed in claim 2 a kind of for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that:
The system further includes scrubbing system, after the clear water for being come from outer circulation pond (14) containing mud that sludge-water separating system is isolated rinses
Isolate clean sand.
4. it is as described in claim 1 a kind of for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that:
The system further includes cobble crushing system, and the big partial size cobble in dregs is directly broken for institute before dregs enters scalping (3)
Ballast grain sizes are needed, rubble needed for mixing concrete is directly used in after roughing.
5. one kind as described in Claims 1-4 any one recycles system for earth pressure balanced shield, EPBS dregs and integrated wastewater
System, it is characterized in that: the sludge-water separating system include dregs pond (1), scalping (3), sewage pump (4) and by level-one cyclone (5),
The separation equipment that level-one dewatering screen (6), second cyclone (7), second level dewatering screen (8) are constituted.It is described size mixing and slurries pumping system
System includes size-mixing tank (10), slurry can (11), and the press filteration system includes filter press (12).
6. it is as claimed in claim 5 a kind of for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that:
The scrubbing system uses sand washer (9), and what level-one dewatering screen (6) was isolated is sent into sand washer (9) containing silt particle, follows outside through coming from
The clear water in ring pond (14) isolates clean sand after rinsing.
7. it is as claimed in claim 5 a kind of for earth pressure balanced shield, EPBS dregs and integrated wastewater reutilization system, it is characterized in that:
The cobble crushing system uses stone crusher (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879725.0A CN109057815B (en) | 2018-08-03 | 2018-08-03 | Comprehensive recycling system for earth pressure balance shield slag soil and sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879725.0A CN109057815B (en) | 2018-08-03 | 2018-08-03 | Comprehensive recycling system for earth pressure balance shield slag soil and sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109057815A true CN109057815A (en) | 2018-12-21 |
| CN109057815B CN109057815B (en) | 2024-05-31 |
Family
ID=64833039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810879725.0A Active CN109057815B (en) | 2018-08-03 | 2018-08-03 | Comprehensive recycling system for earth pressure balance shield slag soil and sewage |
Country Status (1)
| Country | Link |
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| CN (1) | CN109057815B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109611113A (en) * | 2019-01-09 | 2019-04-12 | 康明克斯(北京)环保技术有限公司 | A kind of earth pressure balanced shield, EPBS dregs continuous conveying equipment |
| CN109865733A (en) * | 2019-03-07 | 2019-06-11 | 湖南大学 | A kind of system and method for shield dregs in-situ processing and recycling |
| CN110294515A (en) * | 2019-07-18 | 2019-10-01 | 深圳市洪桦环保科技有限公司 | Shield cleans slime water recovering and purifying system and method |
| CN110469335A (en) * | 2019-07-30 | 2019-11-19 | 中交第二航务工程局有限公司 | The construction method that balancing earth-pressure shielding machine waste pulp recycle |
| CN111203315A (en) * | 2019-12-27 | 2020-05-29 | 程泉 | Engineering dregs, soil, sand and stone separation system |
| CN112253145A (en) * | 2020-09-07 | 2021-01-22 | 河南城建学院 | Preparation method of sewage slurry for slurry balance shield and shield construction method |
| CN112761650A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Dual-mode shield muck treatment method |
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| CN112966416A (en) * | 2021-03-08 | 2021-06-15 | 河海大学 | Resource utilization method for soil compaction shield fine sand and silty clay mixed muck |
| CN113374485A (en) * | 2021-06-28 | 2021-09-10 | 中铁(上海)投资集团有限公司 | Shield grouting method based on shield muck improvement under water-rich sand layer condition |
| CN113482640A (en) * | 2021-08-20 | 2021-10-08 | 中交（广州）建设有限公司 | Dual-mode shield abandoned slag separation system and separation method thereof |
| CN115045672A (en) * | 2020-12-10 | 2022-09-13 | 中交疏浚技术装备国家工程研究中心有限公司 | Intelligent earth pressure balance shield muck treatment application method |
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| CN115045672B (en) * | 2020-12-10 | 2024-07-26 | 中交疏浚技术装备国家工程研究中心有限公司 | Intelligent earth pressure balance shield residue soil treatment application method |
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