CN105060796B - A kind of slurry shield Flooding in Borehole driving mud and its compound method - Google Patents
A kind of slurry shield Flooding in Borehole driving mud and its compound method Download PDFInfo
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- CN105060796B CN105060796B CN201510533168.3A CN201510533168A CN105060796B CN 105060796 B CN105060796 B CN 105060796B CN 201510533168 A CN201510533168 A CN 201510533168A CN 105060796 B CN105060796 B CN 105060796B
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Abstract
The invention discloses a kind of slurry shield Flooding in Borehole driving mud, include each component of following parts by weight：The parts by weight of discarded slurry 1,000 1250, the parts by weight of clear water 0 300, the parts by weight of bentonite 0 50 and the parts by weight of tackifier 0.5 3；Compound method is：When shield early stage passes through cohesive soil stratum, the discarded slurry of generation is carried and deposited near size-mixing tank, when slurry shield driving arrives Extra-fine sand or gravelly sand stratum, discarded slurry is pumped into size-mixing tank to be adjusted, by adding the one or more in clear water, bentonite and tackifier thereto, the product for meeting slurry shield Flooding in Borehole driving quality of mud fluid index request is adjusted out.Compared with existing pulping technique, the present invention takes full advantage of discarded slurry, can effectively save resource, cost, reduce environmental pollution, and the premium mud for meeting the requirements such as density, viscosity, isolation rate, physical and chemical stability can be modulated.
Description
Technical field
The present invention relates to a kind of slurry shield Flooding in Borehole driving mud and its compound method, mud is prepared using discarded slurry
Water quality structure Flooding in Borehole driving mud；Suitable for passing through the slurry shield tunnel engineering such as rivers.
Background technology
In recent years, with the fast development of social economy and urbanization process, slurry shield tunnel technology turns into China
Indispensable key technology in the infrastructure constructions such as major motor vehicle.Slurry shield starting well and early stage tunneling construction will be produced
It is general in raw a large amount of discarded slurries, engineering that outward transport processing is carried out to discarded slurry using groove tank car, so not only cause huge
It is also possible to influence the appearance of the city because leakage is spilt in the wasting of resources, transportation, and the subsequent treatment of discarded slurry is also very difficult.And
Cross rivers and seabed tunnel and often pass through long range Flooding in Borehole in mid-term work progress, it is necessary to which consuming a large amount of mud is used for shield
Driving, these mud are typically configured, it is necessary to expend a large amount of systems in special slurrying pond by bentonite, tackifier and clear water
Pulp material.
Difference and the upper time difference of tunneling sequence due to the geological conditions of front and rear driving so that shield early stage passes through viscous
The useless slurry of a large amount of high clay contents produced during soil layer is provided with the feasibility of recycling.But, do not have also in current industry
This kind of technical scheme, needs exploitation badly.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of slurry shield Flooding in Borehole driving mud
And its compound method, take full advantage of shield early stage and pass through a large amount of discarded slurries produced during cohesive soil stratum.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of slurry shield Flooding in Borehole driving mud, includes each component of following parts by weight：Discarded slurry 1000-1250
Parts by weight, clear water 0-300 parts by weight, bentonite 0-50 parts by weight and tackifier 0.5-3 parts by weight, the discarded slurry are shield
Early stage passes through what is produced during cohesive soil stratum, this makes it possible to make full use of the discarded slurry that shield early stage is produced, with environmental protection section
The many merits such as energy.
Specifically, the clay content of foregoing discarded slurry is 20%-50%, and density is 1.10g/cm3-1.45g/cm3, formula of reviving
Funnel viscosity is 20s-75s.
Preferably, foregoing tackifiers are sodium carboxymethylcelluloses, and sodium carboxymethylcellulose abbreviation CMC is a kind of artificial conjunction
Into cellulose ether, belong to water soluble salt, with excellent water-retaining property and viscosifying action, in oil drilling and muddy water adding pressure type shield
It can be used to adjust the viscosity of mud in the engineerings such as structure.
Further, driving mud of the invention quality index requirement be：Clay content is 20%-35%, and density is
1.15 g/cm3-1.25 g/cm3, Soviet Union's formula funnel viscosity is 25-35s.
In addition, the invention also discloses the compound method of foregoing slurry shield Flooding in Borehole driving mud, being specially：
When shield early stage passes through cohesive soil stratum, the discarded slurry of generation is carried and deposited near size-mixing tank, when slurry shield driving is arrived
When Extra-fine sand or gravelly sand stratum, discarded slurry is pumped into size-mixing tank and is adjusted, by add thereto clear water, bentonite and
One or more in tackifier, adjust out the product for meeting slurry shield Flooding in Borehole driving quality of mud fluid index request.Mud
Pulp density, viscosity are excessive, and addition clear water is to dilute, and mud density is too small, and addition bentonite is to adjust, and mud viscosity is too small then
Tackifier are added to adjust.
The present invention is advantageous in that：Compared with existing pulping technique, the present invention takes full advantage of discarded slurry, prepares
Every cubic metre of slurry shield Flooding in Borehole driving mud can save bentonite 100-250kg, clear water 850-950kg, tackifier
2-5kg, can effectively save resource, cost, reduce environmental pollution, and can modulate meet density, viscosity, isolation rate,
The premium mud of the requirements such as physical and chemical stability, the mud can form fine and close mud film, effectively dimension in Flooding in Borehole excavation face
Excavation face stabilization is held, is a kind of efficient, environmentally friendly, energy-conservation slurry shield driving Slurry confection method tallied with the national condition.
Embodiment
Make specific introduce to the present invention below in conjunction with specific embodiment.
Embodiment 1
Prepare every cubic metre of slurry shield Flooding in Borehole driving includes following raw material with mud：Discarded slurry 1140kg is (close
Spend 1.14g/cm3, Su Shi funnel viscosities 21s, clay content 22%), bentonite 30kg, tackifier 0.5kg, above-mentioned raw materials are put
It is well mixed in size-mixing tank stand-by.
The present embodiment prepare slurry shield Flooding in Borehole driving be with the quality index of mud：Density 1.17g/cm3, viscosity
28s, clay content 29%, meet engineering construction requirement.
Embodiment 2
Prepare every cubic metre of construction includes following raw material with mud：Discarded slurry 1000kg (density 1.31g/cm3, Soviet Union
Family name's funnel viscosity 44s, clay content 41%), clear water 237kg, by above-mentioned raw materials be placed in size-mixing tank be well mixed it is stand-by.
The present embodiment prepare slurry shield Flooding in Borehole driving be with the quality index of mud：Density 1.24g/cm3, Su Shi
Funnel viscosity 33s, clay content 32%, meet engineering construction requirement.
Confirmed through construction, the mud that embodiment 1 and embodiment 2 are prepared also has that isolation rate is small, physical and chemical stability is good
Advantage, density, viscosity is larger, and clay content is higher, is suitable for gravelly sand stratum tunneling construction, the mud construction effect compared with
It is good, fine and close mud film is formed in thin silt, can maintain to excavate face stability, the value with popularization and application well.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (4)
1. a kind of slurry shield Flooding in Borehole driving mud, it is characterised in that include each component of following parts by weight：Discarded slurry
1000-1250 parts by weight, clear water 0-300 parts by weight, bentonite 0-50 parts by weight and tackifier 0.5-3 parts by weight, it is described discarded
Mud is that shield early stage passes through what is produced during cohesive soil stratum；The clay content of the discarded slurry is 20%-50%, and density is
1.10g/cm3-1.45g/cm3, Soviet Union's formula funnel viscosity is 20s-75s；The driving is 20%-35%, density with the clay content of mud
For 1.15 g/cm3-1.25 g/cm3, Soviet Union's formula funnel viscosity is 25-35s.
2. a kind of slurry shield Flooding in Borehole driving mud according to claim 1, it is characterised in that the tackifier are
Sodium carboxymethylcellulose.
3. a kind of compound method of slurry shield Flooding in Borehole driving mud as described in claim any one of 1-2, its feature
It is, specific method is：When shield early stage passes through cohesive soil stratum, size-mixing tank is deposited in into the discarded slurry carrying of generation attached
Closely, when slurry shield driving arrive Extra-fine sand or gravelly sand stratum when, discarded slurry is pumped into size-mixing tank and is adjusted, by its
One or more in middle addition clear water, bentonite and tackifier, adjust out and meet slurry shield Flooding in Borehole driving mud matter
The product of figureofmerit requirement.
4. a kind of compound method of slurry shield Flooding in Borehole driving mud according to claim 3, it is characterised in that mud
Pulp density, viscosity are excessive, and addition clear water is to dilute, and mud density is too small, and addition bentonite is to adjust, and mud viscosity is too small then
Tackifier are added to adjust.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510533168.3A CN105060796B (en) | 2015-08-27 | 2015-08-27 | A kind of slurry shield Flooding in Borehole driving mud and its compound method |
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| CN201510533168.3A CN105060796B (en) | 2015-08-27 | 2015-08-27 | A kind of slurry shield Flooding in Borehole driving mud and its compound method |
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| CN105060796A CN105060796A (en) | 2015-11-18 |
| CN105060796B true CN105060796B (en) | 2017-07-21 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106948827B (en) * | 2017-04-10 | 2019-03-29 | 中铁十四局集团有限公司 | A kind of slurry shield emergency benefit slurry circulation technology method and device |
| CN107188463A (en) * | 2017-05-26 | 2017-09-22 | 中冶天工集团有限公司 | A kind of bentonite adhesive and its construction method for external wall waterproof layer protection board |
| CN107344830A (en) * | 2017-08-09 | 2017-11-14 | 中铁隧道集团二处有限公司 | A kind of method that shield grouting is prepared using discarded slurry |
| CN108086908B (en) * | 2017-12-13 | 2020-02-11 | 中国二冶集团有限公司 | Method for using slurry in river channel crossing construction by directional drilling |
| CN108358491B (en) * | 2018-02-02 | 2023-09-12 | 湖南垚森信息科技有限公司 | Comprehensive treatment method for shield waste slurry and mixed feeding device |
| CN110436836B (en) * | 2019-08-21 | 2021-10-15 | 河海大学 | Slurry for SCAP type earth pressure balance shield cabin opening and preparation method thereof |
| CN111170685B (en) * | 2020-01-21 | 2020-12-08 | 中南大学 | Green slurry for water-rich fractured formation slurry shield construction and preparation method thereof |
| CN113790057A (en) * | 2021-09-07 | 2021-12-14 | 中建八局轨道交通建设有限公司 | Slurry shield filter-pressing mud cake re-slurrying construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104177008A (en) * | 2014-08-12 | 2014-12-03 | 上海三瑞高分子材料有限公司 | Formula of high-dispersion slurry for slurry shield |
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