CN105060796A - Slurry for slurry shield sand stratum tunneling and preparation method thereof - Google Patents
Slurry for slurry shield sand stratum tunneling and preparation method thereof Download PDFInfo
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- CN105060796A CN105060796A CN201510533168.3A CN201510533168A CN105060796A CN 105060796 A CN105060796 A CN 105060796A CN 201510533168 A CN201510533168 A CN 201510533168A CN 105060796 A CN105060796 A CN 105060796A
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Abstract
The invention discloses slurry for slurry shield sand stratum tunneling. The slurry comprises 1000-1250 parts by weight of abandoned slurry; 0-300 parts by weight of clear water, 0-50 parts by weight of bentonite and 0.5-3 parts by weight of tackifier. A preparation method is that when a shield penetrates a clay stratum at the earlier stage, generated abandoned slurry is carried and stored near a slurry mixing tank; when the slurry shield tunnels fine sand or a gravelly sand stratum, the abandoned slurry is pumped into the slurry mixing tank to be adjusted, one or more of clear water, bentonite and tackifier are led into the abandoned slurry, and a product which meets the quality index requirements of the slurry for slurry shield sand stratum tunneling is obtained. Compared with an existing slurrying technology, the abandoned slurry is fully utilized, resources can be effectively saved, the cost can be effectively reduced, the environmental pollution is reduced, and the excellent slurry which can meet the requirements for density, adhesiveness, separation rate and physical and chemical stability and the like can be obtained.
Description
Technical field
The present invention relates to a kind of slurry shield Flooding in Borehole driving mud and compound method thereof, adopt discarded slurry preparation slurry shield Flooding in Borehole driving mud; Be applicable to pass through the slurry shield tunnel engineerings such as rivers.
Background technology
In recent years, along with the fast development of social economy and urbanization process, slurry shield tunnel technology has become gordian technique indispensable in the infrastructure constructions such as China's major motor vehicle.Slurry shield starting well and early stage tunneling construction will produce a large amount of discarded slurry, in engineering, the general groove tank car that uses carries out outward transport process to discarded slurry, so not only cause the huge wasting of resources, also may affect the appearance of the city because leakage is spilt in transportation, and the subsequent disposal of discarded slurry is also very difficult.And rivers and subbottom tunnel often pass through long distance Flooding in Borehole in construction process in mid-term excessively, need to consume a large amount of mud for shield driving, these mud are generally configured by wilkinite, tackifier and clear water in special slurrying pond, need at substantial pulping material.
Due to the difference of geologic condition of front and back driving and the time difference of the upper of tunneling sequence, the useless slurry of a large amount of high clay content produced when making shield structure in earlier stage pass through clay stratum is provided with the feasibility of recycling.But, also there is no this kind of technical scheme in current industry, need exploitation badly.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of slurry shield Flooding in Borehole driving mud and compound method thereof, taking full advantage of a large amount of discarded slurries produced when shield structure passes through cohesive soil stratum in earlier stage.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of slurry shield Flooding in Borehole driving mud, comprise each component of following weight part: discarded slurry 1000-1250 weight part, clear water 0-300 weight part, wilkinite 0-50 weight part and tackifier 0.5-3 weight part, described discarded slurry is that shield structure produces when passing through cohesive soil stratum early stage, this makes it possible to the discarded slurry making full use of the generation in early stage of shield structure, there is the many merits such as environmental protection and energy saving.
Particularly, the clay content of aforementioned discarded slurry is 20%-50%, and density is 1.10g/cm
3-1.45g/cm
3, Soviet Union's formula funnel viscosity is 20s-75s.
Preferably, foregoing tackifiers is Xylo-Mucine, and Xylo-Mucine is called for short CMC, it is a kind of ether of cellulose of synthetic, belong to water-soluble salt, there is excellent water-retentivity and viscosifying action, in the engineerings such as petroleum drilling and muddy water adding pressure type shield structure, can be used to the viscosity regulating mud.
Further, the quality index requirement of driving mud of the present invention is: clay content is 20%-35%, and density is 1.15g/cm
3-1.25g/cm
3, Soviet Union's formula funnel viscosity is 25-35s.
In addition, the invention also discloses the compound method of aforesaid slurry shield Flooding in Borehole driving mud, be specially: when shield structure passes through cohesive soil stratum in earlier stage, the carrying of the discarded slurry of generation is deposited near size-mixing tank, when slurry shield tunnels Extra-fine sand or gravelly sand stratum, discarded slurry being pumped into size-mixing tank regulate, one or more by adding in clear water, wilkinite and tackifier wherein, adjusting the product meeting slurry shield Flooding in Borehole driving quality of mud fluid index request.The excessive clear water that then adds of mud density, viscosity is with dilution, and the too small wilkinite that then adds of mud density is to regulate, and the too small tackifier that then add of mud viscosity are to regulate.
Usefulness of the present invention is: compared with existing pulping technique, the present invention takes full advantage of discarded slurry, prepare every cubic metre of slurry shield Flooding in Borehole driving mud and can save wilkinite 100-250kg, clear water 850-950kg, tackifier 2-5kg, can effectively economize on resources, cost, reduce environmental pollution, and can modulate and meet density, viscosity, isolation rate, the premium mud that physical and chemical stability etc. require, this mud can form fine and close mud film in Flooding in Borehole excavation face, effective maintenance excavation face is stablized, be a kind of tally with the national condition efficient, environmental protection, energy-conservation slurry shield driving Slurry confection method.
Embodiment
Below in conjunction with specific embodiment, concrete introduction is done to the present invention.
embodiment 1
Prepare every cubic metre of slurry shield Flooding in Borehole driving mud and comprise following starting material: discarded slurry 1140kg (density 1.14g/cm
3, Su Shi funnel viscosity 21s, clay content 22%), wilkinite 30kg, tackifier 0.5kg, above-mentioned raw materials is placed in size-mixing tank and mixes stand-by.
The quality index of the slurry shield Flooding in Borehole driving mud of the present embodiment preparation is: density 1.17g/cm
3, viscosity 28s, clay content 29%, meet engineering construction requirement.
embodiment 2
Prepare every cubic metre of construction mud and comprise following starting material: discarded slurry 1000kg (density 1.31g/cm
3, Su Shi funnel viscosity 44s, clay content 41%), clear water 237kg, above-mentioned raw materials is placed in size-mixing tank and mixes stand-by.
The quality index of the slurry shield Flooding in Borehole driving mud of the present embodiment preparation is: density 1.24g/cm
3, Su Shi funnel viscosity 33s, clay content 32%, meet engineering construction requirement.
Confirm through construction, the mud that embodiment 1 and embodiment 2 are prepared also has the advantage that isolation rate is little, physical and chemical stability is good, density, viscosity are larger, clay content is higher, be suitable for gravelly sand stratum tunneling construction, this mud construction effect is better, forms fine and close mud film at thin silt, excavation face stability can be maintained well, there is the value applied.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (6)
1. a slurry shield Flooding in Borehole driving mud, it is characterized in that, comprise each component of following weight part: discarded slurry 1000-1250 weight part, clear water 0-300 weight part, wilkinite 0-50 weight part and tackifier 0.5-3 weight part, described discarded slurry is that shield structure produces when passing through cohesive soil stratum early stage.
2. a kind of slurry shield Flooding in Borehole driving mud according to claim 1, it is characterized in that, the clay content of described discarded slurry is 20%-50%, and density is 1.10g/cm
3-1.45g/cm
3, Soviet Union's formula funnel viscosity is 20s-75s.
3. a kind of slurry shield Flooding in Borehole driving mud according to claim 1, it is characterized in that, described tackifier are Xylo-Mucines.
4. a kind of slurry shield Flooding in Borehole driving mud according to claim 1, it is characterized in that, the clay content of this driving mud is 20%-35%, and density is 1.15g/cm
3-1.25g/cm
3, Soviet Union's formula funnel viscosity is 25-35s.
5. the compound method of a kind of slurry shield Flooding in Borehole driving mud as described in any one of claim 1-4, it is characterized in that, concrete grammar is: when shield structure passes through cohesive soil stratum in earlier stage, the carrying of the discarded slurry of generation is deposited near size-mixing tank, when slurry shield tunnels Extra-fine sand or gravelly sand stratum, discarded slurry is pumped into size-mixing tank regulate, one or more by adding in clear water, wilkinite and tackifier wherein, adjust the product meeting slurry shield Flooding in Borehole driving quality of mud fluid index request.
6. the compound method of a kind of slurry shield Flooding in Borehole driving mud according to claim 5, it is characterized in that, the excessive clear water that then adds of mud density, viscosity is with dilution, and the too small wilkinite that then adds of mud density is to regulate, and the too small tackifier that then add of mud viscosity are to regulate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN105060796A (en) | 2015-11-18 |
| CN105060796B CN105060796B (en) | 2017-07-21 |
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Cited By (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 |
| 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 |
| 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 |
| CN108086908A (en) * | 2017-12-13 | 2018-05-29 | 中国二冶集团有限公司 | The application method of mud in the construction of directional drilling crossing river |
| CN108358491A (en) * | 2018-02-02 | 2018-08-03 | 中南大学 | A kind of integrated conduct method and mixing feeding device of shield discarded slurry |
| CN110436836A (en) * | 2019-08-21 | 2019-11-12 | 河海大学 | SCAP formula earth pressure balanced shield, EPBS opens the cabin with mud and its preparation method |
| CN111170685A (en) * | 2020-01-21 | 2020-05-19 | 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 |
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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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| 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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| 姜腾等: "废弃黏土在泥水盾构泥浆配制中的再利用研究", 《隧道建设》 * |
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Cited By (12)
| 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 |
| 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 |
| 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 |
| CN108086908A (en) * | 2017-12-13 | 2018-05-29 | 中国二冶集团有限公司 | The application method of mud in the construction of directional drilling crossing river |
| 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 |
| CN108358491A (en) * | 2018-02-02 | 2018-08-03 | 中南大学 | A kind of integrated conduct method and mixing feeding device of shield discarded slurry |
| 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 |
| CN110436836A (en) * | 2019-08-21 | 2019-11-12 | 河海大学 | SCAP formula earth pressure balanced shield, EPBS opens the cabin with mud and its preparation method |
| 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 |
| CN111170685A (en) * | 2020-01-21 | 2020-05-19 | 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 |
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| CN105060796B (en) | 2017-07-21 |
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