CN110003866A - A kind of matching method for the natural rock-soil material preparing high holding one's breath property mud - Google Patents
A kind of matching method for the natural rock-soil material preparing high holding one's breath property mud Download PDFInfo
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- CN110003866A CN110003866A CN201910226138.6A CN201910226138A CN110003866A CN 110003866 A CN110003866 A CN 110003866A CN 201910226138 A CN201910226138 A CN 201910226138A CN 110003866 A CN110003866 A CN 110003866A
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- mud
- high holding
- soil
- breath
- preparing high
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/05—Aqueous well-drilling compositions containing inorganic compounds only, e.g. mixtures of clay and salt
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of matching methods of natural rock-soil material for preparing high holding one's breath property mud, belong to engineering material field.Using natural ground as material, the mud materials with high holding one's breath property and the supporting that can be used for forming a film are prepared under conditions of not adding any other materials.Mud materials of the invention are held one's breath better performances, to solve the problems, such as that artificial mud materials are at high cost, easy influence environment provides new approach.
Description
Technical field:
The present invention relates to engineering material fields, are related to a kind of apolegamy side of natural rock-soil material for preparing high holding one's breath property mud
Method.It is primarily adapted for use in the mud film forming supporting in Underground Engineering Excavation face.
Background technique:
Mud film forming supporting be shield open a position, the important preventive means of the undergrounds big cross section engineering such as diaphram wall, branch
Shield effect depends primarily on the performance of mud materials.Suitable engineering slurry material shape on slurry balance shield tunnel excavation face
At fine and close mud film, stratum soil pressure and water pressure are balanced, is more had to the problems such as maintaining excavation face stability, pre- protrusion-dispelling mud water burst
Effect.The performance of slurry coat method is directly related to the construction quality and safety of the engineerings such as diaphram wall, deep drilling.Therefore, mud
The selection of pulp material is smoothly excavated development to underground engineering and is played a crucial role.
Summary of the invention:
The present invention provides a kind of matching method of natural rock-soil material for preparing high holding one's breath property mud, by natural ground and
Water is made according to a certain ratio.
To realize above-mentioned slurry body preparation, the invention adopts the following technical scheme:
A kind of matching method for the natural rock-soil material preparing high holding one's breath property mud, apolegamy the following steps are included:
(1) processing of natural ground raw material: drying and screening, wherein using 100-105 DEG C of dryer drying, using rubber
Skin roller pours into the screening of standard screen mechanical oscillation after grinding scattered soil sample；
(2) weighing of raw material: fine grained weighs in proportion with coarse granule, wherein coarse granule maximum particle diameter should not be too large, control
System is in 5mm or so；
(3) it the weighing of blender: is strictly weighed in water and soil ratio, wherein water is tap water；
(4) be mixed: control revolving speed stirs uniform to slurry, wherein the stirring principles of action use and matched turn of preparation amount
Son, guarantee are stirred everywhere.
Clay mineral content is 15%- in the apolegamy step (1) of the natural rock-soil material of high holding one's breath property mud in the present invention
20%.
It is coarse granule that partial size, which is greater than 1mm, in the apolegamy step (2) of the natural rock-soil material of high holding one's breath property mud in the present invention,
It is fine grained that partial size, which is less than 1mm, and fine grained and coarse granule ratio are 1: 1.08-1: 1.33.
Soil ratio is 0.45: 1 in the apolegamy step (3) of the natural rock-soil material of high holding one's breath property mud in the present invention.
With 40-120 revs/min of blender in the apolegamy step (4) of the natural rock-soil material of high holding one's breath property mud in the present invention
Clock revolving speed is sufficiently stirred no less than 30 minutes from low speed to stopping of slowing down again at a high speed, until slurry body is uniform, color one everywhere
It causes, interior no dry particle wraps up in group.
The slurry body prepared in the present invention, viscosity 16-21Pas, density 1.7-1.9g/cm3, air pressure can be born
It for 0.7MPa or more, can be maintained 30 minutes or more under the conditions of 0.7MPa, maximum air filtration amount 0.018L/m2Min stablizes air filtration
Measure 0.05L/m2·min。
The present invention is compared to existing technology, advantage:
(1) mud raw material sources of the invention are extensive, are available locally；
(2) mud of the invention does not add any chemical material, more environmentally-friendly；
(3) mud of the invention is at low cost, and preparation method is simple.
Detailed description of the invention
Fig. 1 is that experiment embodiment red beds saprolite mud accumulates air filtration spirogram.
Specific embodiment:
(1) processing of natural ground raw material: the natural ground raw material of the amount of taking fully, (kaolinite, illite, illiteracy are de- for clay mineral
Stone etc.) content be 15%-20%, dry and sieve, wherein using 100-105 DEG C of dryer drying, using rubber roller grind dissipate
Standard screen mechanical oscillation screening (no less than 30 minutes) is poured into after soil sample, until screen over-size is stablized, maximum particle diameter in 5mm or so,
Minimum grain size is less than 0.075mm；
(2) weighing of raw material: fine grained weighs in proportion with coarse granule, wherein coarse granule maximum particle diameter should not be too large, control
System is in 5mm or so, and it is coarse granule that partial size, which is greater than 1mm, and it is fine grained that partial size, which is less than 1mm, and fine grained and coarse granule ratio are 1:
1.08-1:1.33；
(3) it the weighing of blender: is strictly weighed by soil ratio 0.45: 1, wherein water is tap water, and measurement precision is 1ml；
(4) be mixed: control revolving speed stirs uniform to slurry, wherein the stirring principles of action use and matched turn of preparation amount
Son, guarantee can be stirred to everywhere, and tap water is added, is slowly added to, gradually infiltrates, later with 40-120 revs/min of blender
Clock revolving speed is slowed down by low speed (40 revs/min, maintain 3-5 minutes) to high speed (120 revs/min, maintenance 20 minutes or more) again
(20-40 revs/min, maintain 3-5 minute) finally stops, and is sufficiently stirred the time and is no less than 30 minutes, up to slurry body is uniform, respectively
Locate solid colour, interior no dry particle wraps up in group.
The slurry body prepared in the present invention, viscosity 16-21Pas, density 1.7-1.9g/cm3, air pressure can be born
It for 0.7MPa or more, can be maintained 30 minutes or more under the conditions of 0.7MPa, maximum air filtration amount 0.018L/m2Min stablizes air filtration
Measure 0.05L/m2·min。
Experiment embodiment
A kind of matching method experiment embodiment for the natural rock-soil material preparing high holding one's breath property mud, steps are as follows:
(1) processing of natural ground raw material: drying and screening take Guangzhou project building site red beds saprolite 2000g, stick
Native mineral (kaolinite, illite, montmorillonite etc.) content is 19.25%, is dried 24 hours or more using 100-105 DEG C of dryer
It is taken out to constant weight, it is stable to each layer screen over-size using pouring into the screening of standard screen mechanical oscillation 30 minutes after the scattered soil sample of rubber roller stone roller
Stop；
(2) weighing of raw material: fine grained weighs in proportion with coarse granule, wherein coarse granule maximum particle diameter 5mm or so, grain
It is coarse granule that diameter, which is greater than 1mm, and it is fine grained that partial size, which is less than 1mm, and fine grained and coarse granule ratio are 1: 1.299, for suitable for reality
Experiment device needs sampling 659g, including fine grained 286.65g, coarse granule 372.35g after calculating；
(3) it the weighing of blender: is strictly weighed by soil ratio 0.45: 1, that is, needs 296g water, wherein water is tap water, amount
Taking precision is 1ml；
(4) it is mixed: being slowly added to tap water, gradually infiltrate, later with blender (root diameter 15cm) 40-120
Rev/min revolving speed, by low speed (40 revs/min, maintain 3-5 minute) to high speed (120 revs/min, maintenance 20 minutes or more) again
Slow down (20-40 revs/min, maintain 3-5 minute) finally stop, being sufficiently stirred the time is no less than 30 minutes, up to slurry body is equal
Even, solid colour, interior no dry particle wrap up in group everywhere.
The performance of holding one's breath of slurry body uses the measurement of maximum hold one's breath pressure value and slurry body a length of when holding one's breath in experiment embodiment
Index, wherein maximum holds one's breath pressure value test using every air pressure grade 0.1MPa load, and duration of holding one's breath test uses every air pressure lotus
It carries grade and stablizes 3 minutes records, while filtering out gas with container collection.
Test result is as follows for it shown in table:
Slurry body can maintain 30 minutes or more under 0.7MPa air pressure loading condition in the present invention.
The above is only preferred embodiments of the invention, is not intended to limit the present invention in any form, therefore all
It is any simply to be repaired to what above example was done according to the technical essence of the invention without departing from technical solution of the present invention content
Change, equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
In conclusion the present invention be expected to for solve the problems, such as artificial mud materials are at high cost, easy influence environment provide it is new
Approach and data provide reference and reference to find and using the research of natural material.
Claims (3)
1. a kind of matching method for the natural rock-soil material for preparing high holding one's breath property mud, it is characterised in that: mud materials are with natural
Ground matches step as blender as raw material, water include the following:
(1) processing of natural ground raw material: drying and screening；
(2) weighing of raw material: fine grained weighs in proportion with coarse granule；
(3) it the weighing of blender: is strictly weighed in water and soil ratio；
(4) be mixed: control revolving speed stirs uniform to slurry.
2. a kind of matching method of natural rock-soil material for preparing high holding one's breath property mud according to claim 1, feature
Be: in step (1), clay mineral content is 15%-20% in natural ground；In step (2), it is thick that partial size, which is greater than 1mm,
Grain, it is fine grained that partial size, which is less than 1mm, and fine grained and coarse granule ratio are 1: 1.08-1: 1.33；In step (3), soil ratio is
0.45:1；In step (4), the range of speed control is 40-120 revs/min, and mixing time is no less than 30 minutes.
3. a kind of matching method for the natural rock-soil material for preparing high holding one's breath property mud according to claims 1-2,
It is characterized in that: the slurry body of preparation, viscosity 16-21Pas, density 1.7-1.9g/cm3, can bear air pressure is
0.7MPa or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910226138.6A CN110003866A (en) | 2019-03-13 | 2019-03-13 | A kind of matching method for the natural rock-soil material preparing high holding one's breath property mud |
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| CN201910226138.6A CN110003866A (en) | 2019-03-13 | 2019-03-13 | A kind of matching method for the natural rock-soil material preparing high holding one's breath property mud |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006070211A (en) * | 2004-09-03 | 2006-03-16 | Nippon Shokubai Co Ltd | Muddy earth pressure shield tunneling method, earth pressure semi shield tunneling method and mud-adding material |
| CN103967498A (en) * | 2014-04-21 | 2014-08-06 | 河海大学 | Under-pressure chamber opening method for shield tunneling machine in coarse-grain soil stratum |
-
2019
- 2019-03-13 CN CN201910226138.6A patent/CN110003866A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006070211A (en) * | 2004-09-03 | 2006-03-16 | Nippon Shokubai Co Ltd | Muddy earth pressure shield tunneling method, earth pressure semi shield tunneling method and mud-adding material |
| CN103967498A (en) * | 2014-04-21 | 2014-08-06 | 河海大学 | Under-pressure chamber opening method for shield tunneling machine in coarse-grain soil stratum |
Non-Patent Citations (2)
| Title |
|---|
| 张宁等: "泥水盾构带压开舱时泥膜的微观孔隙及渗透性研究", 《岩土工程学报》 * |
| 章慧健等: "富水砂卵石地层土压平衡盾构带压换刀技术 ", 《施工技术》 * |
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