CN101838062A - Slurry shield slurry modulation process - Google Patents
Slurry shield slurry modulation process Download PDFInfo
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- CN101838062A CN101838062A CN201010188139A CN201010188139A CN101838062A CN 101838062 A CN101838062 A CN 101838062A CN 201010188139 A CN201010188139 A CN 201010188139A CN 201010188139 A CN201010188139 A CN 201010188139A CN 101838062 A CN101838062 A CN 101838062A
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Abstract
The invention discloses a slurry shield slurry modulation process, the main process is as follows: pumping the size prepared by a new pulp chest to a regulation pool through a pump; regulating through a regulation pool; conveying to a shield machine through a slurry convey pump; the size exhausted by the shield machine is dehydrated by vibration through a separation device of water and muddy in a mode of automatic flow step by step through a first transition settling pond, a second transition settling pond, a regulation pool or a filter-press settling pond; and then conveying to the shield machine through the pump. In the invention, the filterpress is cooperated with the slurry shield to treat the waste slurry; the project cost is lowered; the process has no influence on the environment; the invention is mainly used for regulating the muddy required by the slurry shield by using clean water and the slurry shield, and reduces the working procedure steps, time and required devices by more than 50%.
Description
Technical field
The present invention relates to a kind of slurry modulation process, particularly a kind of slurry shield slurry modulation process belongs to the Tunnel Engineering technical field.
Background technology
Twentieth century nineties, slurry modulation process and using appts thereof successively are used for fields such as (grooves) such as positive and negative circulation pore-forming such as sludge treatment, waste water reclamation and water power, urban construction etc., and the engineering specifications that this stage faces is simple, project site relative fixed, mud composition and consumption are all less.
Along with the rise of 21st century subway industry, the mud modulation technique begins to be widely used in subway shield tunnel construction.Because the Metro Tunnel mileage is long, engineering specifications is complicated, geological transformation is rapid and complicated, subway work one all in the bustling location in city, to slurry modulation process and also claimed structure compactness, performance environmental protection of using appts thereof.
Slurry shield is the special engineering machinery of tunnel driving, integrate mechanical, electrical, liquid, sensing, information technology, have excavation cutting ground, measure guiding, carry functions such as soil quarrel, assembly unit lining cutting concrete section of jurisdiction, be widely used in railway, highway, subway, municipal administration, water conservancy and hydropower Tunnel Engineering at present.Slurry shield utilizes the volume of loop suspension that mud pressure is regulated and controlled, and adopts bentonite suspension (being commonly called as mud) as support material.The stable of excavation face is that mud is sent in the muddy water storehouse, forms fluid-tight mud film with mud on the excavation face, by the tension force maintenance water pressure of this mud film, with earth pressure and the water pressure of poising action in the excavation face.The native sand of excavation is transported to ground with the mud form, separates by the muddy water treatment facility, and the muddy water after the separation carries out the quality adjustment, is transported to the excavation face of shield structure again.
Mud after the muddy water treatment facility separates enters the adjustment groove through post precipitation, in adjusting groove mud is allocated, and guarantees that the mud property that is transported to the shield structure satisfies service requirements.During the mud modulation, use clay to improve density, add wilkinite (pulping agent) and increase viscosity.The mud that stickiness is big prevents that at sandy gravel stratum mud loss, layer of sand from peeling off, and makes the excavation face keep stable.
Some trials have been made at the mud modulation of subway shield tunnel construction by at present indivedual enterprises, mainly are to utilize technology such as skeleton construction, chemical material and stirrer, complex procedures.In shielded construction, still can not satisfy quick, a large amount of slurrying, also can't satisfy the requirement of the narrow and small and energy-saving and emission-reduction in place, city.
The problem that at present existing slurry shield slurry processing mode mainly exists has: the form that one employing of useless slurry that (1), slurry shield construction are at present produced effluxes, project cost increase, big for environment pollution; (2), present mud modulation technique is mainly the bentonite slurry for preparing is sent into expanded pond, the chemical grout of hydrolyzed carboxymethylcellulo, e for preparing (CMC) or hydro-polyacrylamide (PHP) is sent into the medicine pond, mud in the expanded pond leaves standstill after 15～20 hours and pumps into pulp storage tank, new system mud in the pulp storage tank is by being pumped into the pond of sizing mixing, and this mode exists process complexity, of a specified duration, the required equipment device shortcoming how of required time.
Therefore, be necessary to design a kind of slurry shield slurry modulation process that can overcome above-mentioned shortcoming, to address the above problem.
Summary of the invention
The purpose of this invention is to provide a kind of slurry shield slurry modulation process, its purpose is to solve that the project cost that exists in the existing slurry shield slurry treatment process is too high, complex process, required time shortcoming of a specified duration and big for environment pollution, and a kind of simple structure, technology are simple, the slurry shield slurry modulation process of environmental protection and energy saving and provide.
The technical solution adopted in the present invention is: a kind of slurry shield slurry modulation process, it is characterized in that, its main technique flow process is: the slurries that prepared by new stock tank are sent by pumping to the adjustment pond, after adjusting the pond adjustment, deliver to shield engine by sending stock pump, the mode that the slurries of being discharged by shield engine are taked to flow automatically step by step after mud and water separating equipment vibration dehydration is through the first excessive settling tank, the second excessive settling tank, adjustment pond or press filtration settling tank, again through being pumped to shield engine, wherein: new stock tank mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure; Excessively the mud scraper of settling tank carries out scraping mud after the natural sedimentation to slurries and makes hyperbaric slurries squeeze into the press filtration settling tank by the form of pumping, the press filtration settling tank carries out the flocculation treatment of slurries, the slurries that flocculation treatment is good pump into by surge pump and carry out press filtration on the filtering equipment, a part is a dregs after the press filtration, a part is a clear water in addition, and clear water can be reused.The technique effect that brings thus is at least: the present invention mainly adopts the supporting slurry shield of pressure filter to handle useless slurry, project cost reduces, for environment without any influence, secondly, the present invention mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure, has all reduced more than 50% on process, time and required equipment device.
Aforesaid slurry shield slurry modulation process, it is characterized in that: described excessive settling tank mainly is the slurries after the separating treatment to be carried out natural sedimentation cooperate mud scraper to carry out slurries to concentrate, handle thereby make the high specific gravity slush pump deliver to the press filtration settling tank, qualified slurries flow automatically to new stock tank.The technique effect that brings thus is at least: by the press filtration settling tank, mud is reused, be reduced useless slurry blowdown flow rate, environmental protection and energy saving.
Aforesaid slurry shield slurry modulation process, it is characterized in that: described mud scraper is to pass through agitating vane in the tank body of taper, carries out rotation at a slow speed, makes the spissated awl of slurries of natural sedimentation low, too many as sedimentary particle, mud scraper can upwards promote certain height.The technique effect that brings thus is at least: mud scraper can well solve the slurries precipitation process in shielded construction.
Aforesaid slurry shield slurry modulation process is characterized in that: described adjustment pond mainly is that the slurries index is improved, and the slurry specific gravity height is by increasing clear water or newly starching and adjust, and the slurries of adjusting are delivered to shield engine by the form of pumping.The technique effect that brings thus is at least: adjust and send into shield engine again after the pond is adjusted the slurries that mix up, can improve the slurries index.
The invention has the beneficial effects as follows: major advantage of the present invention is as follows:
(1), the useless slurry that produced of former slurry shield construction adopts the form that effluxes, project cost increases, environmental pollution.The present invention mainly adopts the supporting slurry shield of pressure filter to handle useless slurry, and project cost reduces, also to environment without any influence.Pressure filter is used in shielded construction first, and from present service condition, it is an indispensable important techniques link that pressure filter cooperates slurry shield.
(2), former modulation slurry technology is mainly the bentonite slurry for preparing is sent into expanded pond.The chemical grout of hydrolyzed carboxymethylcellulo, e for preparing (CMC) or hydro-polyacrylamide (PHP) is sent into the medicine pond.Mud in the expanded pond leaves standstill after 15～20 hours and pumps into pulp storage tank.New system mud in the pulp storage tank is by being pumped into the 5# pond of sizing mixing.The present invention mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure, has all reduced 50% on process, time and required equipment device.
Description of drawings
Fig. 1 is the process flow sheet of embodiment of the invention slurry shield slurry modulation process.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of slurry shield slurry modulation process that the embodiment of the invention provides, mud modulation workflow mainly is: new stock tank → adjustment pond → shield engine → mud and water separating equipment → excessive settling tank 1 → excessive settling tank 2 → press filtration settling tank → filtering equipment → slag field/clean water basin.
The slurries of discharging from shield engine adopt the mode of gravity flow step by step, and its main flow process is: mud and water separating equipment → excessive settling tank 1 → excessive settling tank 2 → adjustment pond/press filtration settling tank → P pump → shield engine.
The construction clear water all is the mode of pumping, and its main flow process is: clean water basin → new stock tank/excessive settling tank 1, excessive settling tank 2 → adjustment pond → shield engine → mud and water separating equipment.
Slurry shield slurry modulation process of the present invention, its concrete technical process is: the slurries that prepared by new stock tank are sent by pumping to the adjustment pond, after adjusting the pond adjustment, by sending stock pump to deliver to shield engine, the mode that the slurries of being discharged by shield engine adopt gravity flow step by step through mud and water separating equipment respectively to the first excessive settling tank, the second excessive settling tank, adjustment pond or press filtration settling tank, again through being pumped to shield engine.
New stock tank mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure.
Excessively the mud scraper of settling tank carries out scraping mud after the natural sedimentation to slurries and makes hyperbaric slurries squeeze into the press filtration settling tank by the form of pumping, the press filtration settling tank carries out the flocculation treatment of slurries, the slurries that flocculation treatment is good pump into by surge pump and carry out press filtration on the filtering equipment, a part is a dregs after the press filtration, a part is a clear water in addition, and clear water can be reused.
Described excessive settling tank mainly is the slurries after the separating treatment to be carried out natural sedimentation cooperate mud scraper to carry out slurries to concentrate, handle thereby make the high specific gravity slush pump deliver to the press filtration settling tank, and qualified slurries flow automatically to new stock tank.The technique effect that brings thus is at least: by the press filtration settling tank, mud is reused, be reduced useless slurry blowdown flow rate, environmental protection and energy saving.
Described mud scraper is to pass through agitating vane in the tank body of taper, carries out rotation at a slow speed, makes the spissated awl of slurries of natural sedimentation low, and too many as sedimentary particle, mud scraper can upwards promote certain height.The technique effect that brings thus is at least: mud scraper can well solve the slurries precipitation process in shielded construction.
Described adjustment pond mainly is that the slurries index is improved, and the slurry specific gravity height is by increasing clear water or newly starching and adjust, and the slurries of adjusting are delivered to shield engine by the form of pumping.The technique effect that brings thus is at least: adjust and send into shield engine again after the pond is adjusted the slurries that mix up, can improve the slurries index.
The present invention in actual use, adopt the slurry shield of 6.52 meters of two Φ, tunnel number of rings separate unit shield structure day and be up to 10 rings, wherein the driving time is 60 minutes/ring, pipe sheet assembling and other activity time are 30 minutes/ring, and the stratum that the shield structure passes through is mainly mucky soil, silty clay, powder fine sand and contains soil layer such as gravel medium coarse sand.
The invention has the beneficial effects as follows: major advantage of the present invention is as follows:
(1), the useless slurry that produces of former slurry shield construction adopts the form that effluxes, project cost increases, environmental pollution. The present invention mainly adopts the supporting slurry shield of filter press to process useless slurry, and project cost reduces, also to environment without any impact. Filter press is used in shield-tunneling construction first, and from present operating position, it is an indispensable important sport technique segment that filter press cooperates slurry shield.
(2), former modulation slurry technology is mainly the bentonite slurry for preparing is sent into expanded pond. The chemical grout of the hydrolyzed carboxymethylcellulo, e for preparing (CMC) or hydrolyzed polyacrylamide (PHP) is sent into the medicine pond. Mud in the expanded pond leaves standstill after 15～20 hours and pumps into pulp storage tank. New system mud in the pulp storage tank is by being pumped into the 5# size-mixing tank. The present invention mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure, has all reduced 50% on process, time and equipment needed thereby device.
Claims (4)
1. a slurry shield slurry modulation process is characterized in that, its main technique flow process is:
The slurries that prepared by new stock tank are sent by pumping to the adjustment pond, after adjusting the pond adjustment, deliver to shield engine by sending stock pump, the mode that the slurries of being discharged by shield engine are taked to flow automatically step by step after mud and water separating equipment vibration dehydration is through the first excessive settling tank, the second excessive settling tank, adjustment pond or press filtration settling tank, again through being pumped to shield engine, wherein:
New stock tank mainly adopts clear water and shield structure pulping agent to modulate the required mud of shield structure;
Excessively the mud scraper of settling tank carries out scraping mud after the natural sedimentation to slurries and makes hyperbaric slurries squeeze into the press filtration settling tank by the form of pumping, the press filtration settling tank carries out the flocculation treatment of slurries, the slurries that flocculation treatment is good pump into by surge pump and carry out press filtration on the filtering equipment, a part is a dregs after the press filtration, a part is a clear water in addition, and clear water can be reused.
2. slurry shield slurry modulation process according to claim 1, it is characterized in that: described excessive settling tank mainly is the slurries after the separating treatment to be carried out natural sedimentation cooperate mud scraper to carry out slurries to concentrate, handle thereby make the high specific gravity slush pump deliver to the press filtration settling tank, qualified slurries flow automatically to new stock tank.
3. slurry shield slurry modulation process according to claim 2, it is characterized in that: described mud scraper is to pass through agitating vane in the tank body of taper, carry out rotation at a slow speed, make the spissated awl of slurries of natural sedimentation low, too many as sedimentary particle, mud scraper can upwards promote certain height.
4. slurry shield slurry modulation process according to claim 1, it is characterized in that: described adjustment pond mainly is that the slurries index is improved, the slurry specific gravity height is by increasing clear water or newly starching and adjust, and the slurries of adjusting are delivered to shield engine by the form of pumping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101881395A CN101838062B (en) | 2010-06-01 | 2010-06-01 | Slurry shield slurry modulation process |
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|---|---|---|---|
| CN2010101881395A CN101838062B (en) | 2010-06-01 | 2010-06-01 | Slurry shield slurry modulation process |
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| CN101838062A true CN101838062A (en) | 2010-09-22 |
| CN101838062B CN101838062B (en) | 2012-02-29 |
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| CN2010101881395A Expired - Fee Related CN101838062B (en) | 2010-06-01 | 2010-06-01 | Slurry shield slurry modulation process |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437786A (en) * | 2013-09-04 | 2013-12-11 | 中建交通建设集团有限公司 | Shield sludge cleansing/recycling/reusing system and method |
| CN106699105A (en) * | 2016-12-08 | 2017-05-24 | 中铁十四局集团隧道工程有限公司 | Mud for slurry shield gravel-cobble stratum tunneling and preparation method thereof |
| CN106948827A (en) * | 2017-04-10 | 2017-07-14 | 中铁十四局集团有限公司 | A kind of slurry shield mends slurry circulation technology method and device with emergent |
| CN107416994A (en) * | 2017-08-08 | 2017-12-01 | 中铁隧道集团二处有限公司 | A kind of mud multi-stage separation method that slurry shield machine is constructed in fine grained stratum |
| CN107417066A (en) * | 2017-08-02 | 2017-12-01 | 三川德青工程机械有限公司 | A kind of mud disposal system and method for shield engineering construction |
| CN108708732A (en) * | 2018-03-30 | 2018-10-26 | 重庆大学 | A kind of mud stone compound stratum slurry shield cutterhead, shield machine, speedy drivage 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 |
| CN112538340A (en) * | 2020-12-02 | 2021-03-23 | 中铁隧道股份有限公司 | Shield slurry preparing process |
| CN112761650A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Dual-mode shield muck treatment method |
| CN112780289A (en) * | 2020-12-31 | 2021-05-11 | 中铁工程服务有限公司 | Dual-mode shield muck treatment system |
| CN114735971A (en) * | 2022-02-28 | 2022-07-12 | 中铁隧道局集团有限公司 | Composite paste and preparation and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107381988A (en) * | 2017-08-16 | 2017-11-24 | 山东大学 | A kind of shield high concentration discards mud disposal system and method |
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| JPS6087891A (en) * | 1983-10-18 | 1985-05-17 | Tekken Kensetsu Co Ltd | Treatment of mud water |
| KR100850257B1 (en) * | 2008-04-14 | 2008-08-04 | 주식회사 아이렉스 | Processing method and device of excavate happening in shield working place for a base rock |
| CN201245519Y (en) * | 2008-05-08 | 2009-05-27 | 广州市盾建地下工程有限公司 | Sewage purification processing and recycling system for shield construction |
| CN101538096A (en) * | 2009-04-24 | 2009-09-23 | 北京国油联合油田技术服务有限公司 | Method for processing waste slurry |
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2010
- 2010-06-01 CN CN2010101881395A patent/CN101838062B/en not_active Expired - Fee Related
Patent Citations (4)
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| JPS6087891A (en) * | 1983-10-18 | 1985-05-17 | Tekken Kensetsu Co Ltd | Treatment of mud water |
| KR100850257B1 (en) * | 2008-04-14 | 2008-08-04 | 주식회사 아이렉스 | Processing method and device of excavate happening in shield working place for a base rock |
| CN201245519Y (en) * | 2008-05-08 | 2009-05-27 | 广州市盾建地下工程有限公司 | Sewage purification processing and recycling system for shield construction |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437786A (en) * | 2013-09-04 | 2013-12-11 | 中建交通建设集团有限公司 | Shield sludge cleansing/recycling/reusing system and method |
| CN106699105A (en) * | 2016-12-08 | 2017-05-24 | 中铁十四局集团隧道工程有限公司 | Mud for slurry shield gravel-cobble stratum tunneling and preparation method thereof |
| CN106948827A (en) * | 2017-04-10 | 2017-07-14 | 中铁十四局集团有限公司 | A kind of slurry shield mends slurry circulation technology method and device with emergent |
| WO2018188530A1 (en) * | 2017-04-10 | 2018-10-18 | 中铁十四局集团有限公司 | Method and device for emergency slurry supplement circulation process used for slurry shield |
| CN107417066A (en) * | 2017-08-02 | 2017-12-01 | 三川德青工程机械有限公司 | A kind of mud disposal system and method for shield engineering construction |
| CN107416994B (en) * | 2017-08-08 | 2020-08-28 | 中铁隧道集团二处有限公司 | Multistage mud separation method for slurry shield machine construction in fine particle stratum |
| CN107416994A (en) * | 2017-08-08 | 2017-12-01 | 中铁隧道集团二处有限公司 | A kind of mud multi-stage separation method that slurry shield machine is constructed in fine grained stratum |
| CN108708732A (en) * | 2018-03-30 | 2018-10-26 | 重庆大学 | A kind of mud stone compound stratum slurry shield cutterhead, shield machine, speedy drivage 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 |
| CN112538340A (en) * | 2020-12-02 | 2021-03-23 | 中铁隧道股份有限公司 | Shield slurry preparing process |
| CN112761650A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Dual-mode shield muck treatment method |
| CN112780289A (en) * | 2020-12-31 | 2021-05-11 | 中铁工程服务有限公司 | Dual-mode shield muck treatment system |
| CN112761650B (en) * | 2020-12-31 | 2022-07-15 | 中铁工程服务有限公司 | Double-mode shield muck treatment method |
| CN114735971A (en) * | 2022-02-28 | 2022-07-12 | 中铁隧道局集团有限公司 | Composite paste and preparation and application thereof |
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| CN101838062B (en) | 2012-02-29 |
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