CN103274650A - Injecting paste material for plugging water in tunnel of high-pressure karst area rich in water and preparation method of injecting paste material - Google Patents
Injecting paste material for plugging water in tunnel of high-pressure karst area rich in water and preparation method of injecting paste material Download PDFInfo
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- CN103274650A CN103274650A CN2013102382044A CN201310238204A CN103274650A CN 103274650 A CN103274650 A CN 103274650A CN 2013102382044 A CN2013102382044 A CN 2013102382044A CN 201310238204 A CN201310238204 A CN 201310238204A CN 103274650 A CN103274650 A CN 103274650A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses an injecting paste material for plugging water in a tunnel of a high-pressure karst area rich in water and a preparation method of the injecting paste material. The injecting paste material comprises components in parts by weight as follows: 15-25 parts of coal ash, 5-12 parts of a water reducing accelerator, 100 parts of Portland cement and 60-100 parts of water. The preparation method of the injecting paste material comprises the steps as follows: 1), the coal ash and the Portland cement are mixed and fully stirred, a Portland cement-coal ash mixture is obtained; 2), the Portland cement-coal ash mixture is added into water and fully stirred, and a water solution of the Portland cement-coal ash mixture is obtained; and 3), the water reducing accelerator is added into the water solution of the Portland cement-coal ash mixture and fully stirred, so that the injecting paste material for plugging water in the tunnel of the high-pressure karst area rich in water is obtained. According to the injecting paste material and the preparation method, the coagulation time of the injecting paste material is controllable, the dispersion resistance is good, the strength is high, the durability and the stability are good, and the preparation method is simple, easy to implement and environment-friendly.
Description
Technical field
The invention belongs to the Tunnel Engineering technical field, be specifically related to a kind of injecting paste material for tunnel, high-pressure water-enriched karst region plug water construction and preparation method thereof.
Background technology
In recent years, along with Chinese economic development, the also fast development of tunnel and underground works.For transport solution and energy problem, underground workss such as vcehicular tunnel, railway tunnel, subway sectional tunnel, tunneling station, diversion tunnel and underground power house are built on a large scale.In the construction and use of tunnel and underground works, all be subjected to phreatic harm constantly.At high-pressure water-enriched karst region, water burst is the main geologic hazard that faces in the constructing tunnel.On the one hand, the constructing tunnel water burst not only reduces stability of surrounding rock, and brings a lot of detrimentally affects to construction, particularly having under the situation of a large amount of water gushing out with high pressure, usually leads to Serious Accident.On the other hand, in order to solve the underground water disaster problem, adopt excessive emissions can bring ecological environment problem through the location to the tunnel again.
At present, at the tunnel water burst mainly take " anti-, row, stifled, cut and combine; suit measures to local conditions; the comprehensive regulation " principle, the injecting paste material that is used for plug water construction mainly is divided into inorganic materials and organic materials two big classes, wherein mineral-type materials comprises cement grouting material, clay cement grout, cement-sodium silicate plasmoid humor and silicate slurry material etc., and the major defect of these materials is that water requirement is big, concrete castability is poor, water stability difference and cured body rigidity are bigger; Organic class material comprises polyurethanes slurries, urea-formaldehyde resin plasmoid humor, acrylic amide and lignin slurries etc., and the major defect of these materials is to have certain toxicity, big for environment pollution and expensive, uses less.
Therefore, at high pressure, Fu Shui, karst region tunnel water burst problem, need develop a kind of time of coagulation controlled, anti-dispersing property good, intensity is high, good endurance, nontoxic, pollution-free and moderate injecting paste material, make the tunnel plug water construction more convenient, be conducive to reduce cost, improve construction quality, reach the phreatic purpose of efficient shutoff.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of time of coagulation controlled, anti-dispersing property good, intensity is high, good endurance, moderate cost and environment amenable high-pressure water-enriched lava district tunnel water blockoff injecting paste material, and the corresponding preparation method of a kind of high-pressure water-enriched lava district tunnel water blockoff easy and simple to handle, with low cost with injecting paste material that provide.
For solving the problems of the technologies described above, the technical solution used in the present invention is tunnel, a kind of high-pressure water-enriched karst region water blockoff injecting paste material, comprises the component of following weight part:
15～25 parts in flyash (matrix),
5～12 parts of rapid dewatering accelerant for concrete (solidifying agent),
100 parts of silicate cements (structural agent) and
60～100 parts in water (dispersion agent).
In the above-mentioned injecting paste material, the preferred I level of described flyash F class flyash, II level F class flyash, I level C class flyash or II level C class flyash, this flyash should satisfy " flyash that is used for cement and concrete " regulation (GBT1596-2005).
In the above-mentioned injecting paste material, the preferred 711 type rapid dewatering accelerant for concrete of described rapid dewatering accelerant for concrete (main rapid hardening composition is bauxitic clay, yellow soda ash, unslaked lime) or sodium cellulose glycolate.
In the above-mentioned injecting paste material, the underground water of the preferred ordinary tap water of described water, high-pressure water-enriched karst region or the surface water of high-pressure water-enriched karst region, the pH value preferred 6～7.5 of described water.
In the above-mentioned injecting paste material, the preferred P.O 32.5 of the label of described silicate cement or P.O 42.5.
As a total technical conceive, the present invention also provides the preparation method of tunnel, a kind of high-pressure water-enriched karst region water blockoff with injecting paste material, may further comprise the steps:
(1) flyash of 15～25 weight parts and the silicate cement of 100 weight parts are mixed, fully stir then, obtain silicate cement-mixture of fly ash;
(2) fully stir in the water of the silicate cement that step (1) is obtained-mixture of fly ash adding 60～100 weight parts, obtain the aqueous solution of silicate cement-flyash;
(3) rapid dewatering accelerant for concrete of 5～12 weight parts is added in the aqueous solution of silicate cement-flyash that step (2) obtains, fully stir simultaneously, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
In the above-mentioned method, the preferred I level of described flyash F class flyash, II level F class flyash, I level C class flyash or II level C class flyash, preferred 711 type rapid dewatering accelerant for concrete or the sodium cellulose glycolates of described rapid dewatering accelerant for concrete.
In the above-mentioned method, the underground water of the preferred ordinary tap water of described water, high-pressure water-enriched karst region or the surface water of high-pressure water-enriched karst region, the pH value of described water is 6～7.5.
In the above-mentioned method, the preferred P.O 32.5 of the label of described silicate cement or P.O 42.5.
In the above-mentioned method, the preferred normal temperature of whipping temp in described step (1)～(3) is generally 10 ℃～38 ℃.
Compared with prior art, the invention has the advantages that:
Injecting paste material of the present invention has added flyash on the basis of traditional cement paste solution and rapid dewatering accelerant for concrete carries out modification, make it solidify gel rapidly, thereby make injecting paste material have good water stability, mobile controllability, anti-dispersiveness, concrete castability, weather resistance and early strength advantages of higher; The grouting for water-blocking environment is high-pressure water-enriched karst region, this local ground watering is slightly acidic, owing to be weakly alkaline behind the hydrated cementitious, unstable in weak acid environment, and the injecting paste material behind the adding flyash also presents slightly acidic, not only reduce the consumption of cement, saved cost, and the weather resistance in the slightly acidic groundwater environment and stable better; The gel time of injecting paste material can be according to construction condition, regulates by dosage and the joining day of adjusting accelerating chemicals, and is easy to use.In addition, the preparation method of injecting paste material of the present invention is easy and simple to handle, with low cost, and environmental pollution is little.
Embodiment
Below in conjunction with concrete preferred embodiment the present invention is further described, but protection domain not thereby limiting the invention.
Embodiment 1:
Tunnel, a kind of high-pressure water-enriched karst region of the present invention water blockoff injecting paste material comprises the component of following weight part:
15 parts in II level F class flyash,
8 parts of 711 type rapid dewatering accelerant for concrete,
32.5 100 parts of silicate cement P.O and
80 parts in water (ordinary tap water, pH value are 7.0).
A kind of tunnel, high-pressure water-enriched karst region water blockoff of above-mentioned present embodiment preparation method of injecting paste material may further comprise the steps:
(1) silicate cement that II level F class flyash and the 100 weight part labels of 15 weight parts are P.O 32.5 mixes, and is stirred well at normal temperatures then evenly, obtains silicate cement-mixture of fly ash;
(2) silicate cement-mixture of fly ash that step (1) is obtained adds in the water of 80 weight parts, and institute's water is ordinary tap water, and the pH value is 7.0, is stirred well under the normal temperature evenly, obtains the aqueous solution of silicate cement-flyash;
(3) 711 type rapid dewatering accelerant for concrete of 8 weight parts are added in the aqueous solution of silicate cement-flyash that steps (2) obtain, stir while add at normal temperatures, after stirring, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
Above step (1) to the normal temperature in the step (3) refers to that all temperature is 10 ℃～38 ℃ situation.
Learn that after testing Zhi Bei grouting serous fluid funnel viscosity is 28s as stated above, but the pump time is 9.5h, calculus body 3d ultimate compression strength is 3MPa, and 7 days ultimate compression strength is 9.4MPa.
Embodiment 2:
Tunnel, a kind of high-pressure water-enriched karst region of the present invention water blockoff injecting paste material comprises the component of following weight part:
20 parts in I level F class flyash,
10 parts of 711 type rapid dewatering accelerant for concrete,
32.5 100 parts of silicate cement P.O and
90 parts of high-pressure water-enriched karst region underground water (the pH value is 6.7).
A kind of tunnel, high-pressure water-enriched karst region water blockoff of above-mentioned present embodiment preparation method of injecting paste material may further comprise the steps:
(1) silicate cement that I level F class flyash and the 100 weight part labels of 20 weight parts are P.O 32.5 mixes, and is stirred well at normal temperatures then evenly, obtains silicate cement-mixture of fly ash;
(2) silicate cement-mixture of fly ash that step (1) is obtained adds in the water of 90 weight parts, and institute's water is the underground water of high-pressure water-enriched karst region, and the pH value is 6.7, is stirred well under the normal temperature evenly, obtains the aqueous solution of silicate cement-flyash;
(3) 711 type rapid dewatering accelerant for concrete of 10 weight parts are added in the aqueous solution of silicate cement-flyash that steps (2) obtain, stir while add at normal temperatures, after stirring, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
Above step (1) to the normal temperature in the step (3) refers to that all temperature is 10 ℃～38 ℃ situation.
Learn that after testing Zhi Bei grouting serous fluid funnel viscosity is 31s as stated above, but the pump time is 10h, calculus body 3d ultimate compression strength is 2.9MPa, and 7 days ultimate compression strength is 9.2MPa.
Embodiment 3:
Tunnel, a kind of high-pressure water-enriched karst region of the present invention water blockoff injecting paste material comprises the component of following weight part:
25 parts in II level C class flyash,
12 parts of 711 type rapid dewatering accelerant for concrete,
42.5 100 parts of silicate cement P.O and
80 parts of ordinary tap water (the pH value is 7.0).
A kind of tunnel, high-pressure water-enriched karst region water blockoff of above-mentioned present embodiment preparation method of injecting paste material may further comprise the steps:
(1) silicate cement that II level C class flyash and the 100 weight part labels of 25 weight parts are P.O 42.5 mixes, and is stirred well at normal temperatures then evenly, obtains silicate cement-mixture of fly ash;
(2) silicate cement-mixture of fly ash that step (1) is obtained adds in the water of 80 weight parts, and institute's water is ordinary tap water, and the pH value is 7.0, is stirred well under the normal temperature evenly, obtains the aqueous solution of silicate cement-flyash;
(3) 711 type rapid dewatering accelerant for concrete of 12 weight parts are added in the aqueous solution of silicate cement-flyash that steps (2) obtain, stir while add at normal temperatures, after stirring, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
Above step (1) to the normal temperature in the step (3) refers to that all temperature is 10 ℃～38 ℃ situation.
Learn that after testing Zhi Bei grouting serous fluid funnel viscosity is 25s as stated above, but the pump time is 9h, calculus body 3d ultimate compression strength is 3.5MPa, and 7 days ultimate compression strength is 10MPa.
Embodiment 4:
Tunnel, a kind of high-pressure water-enriched karst region of the present invention water blockoff injecting paste material comprises the component of following weight part:
15 parts in II level C class flyash,
12 parts of sodium cellulose glycolate rapid dewatering accelerant for concrete,
32.5 100 parts of silicate cement P.O and
90 parts of high-pressure water-enriched karst region surface water (the pH value is 6.8).
A kind of tunnel, high-pressure water-enriched karst region water blockoff of above-mentioned present embodiment preparation method of injecting paste material may further comprise the steps:
(1) silicate cement that II level C class flyash and the 100 weight part labels of 15 weight parts are P.O 32.5 mixes, and is stirred well at normal temperatures then evenly, obtains silicate cement-mixture of fly ash;
(2) silicate cement-mixture of fly ash that step (1) is obtained adds in the water of 90 weight parts, and institute's water is the surface water of high-pressure water-enriched karst region, and the pH value is 6.8, is stirred well under the normal temperature evenly, obtains the aqueous solution of silicate cement-flyash;
(3) the sodium cellulose glycolate rapid dewatering accelerant for concrete of 12 weight parts is added in the aqueous solution of silicate cement-flyash that step (2) obtains, stir while adding at normal temperatures, after stirring, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
Above step (1) to the normal temperature in the step (3) refers to that all temperature is 10 ℃～38 ℃ situation.
Learn that after testing Zhi Bei grouting serous fluid funnel viscosity is 21s as stated above, but pump time 10.5h, calculus body 3d ultimate compression strength is 2.4MPa, 7 days ultimate compression strength is 9MPa.
Embodiment 5:
Tunnel, a kind of high-pressure water-enriched karst region of the present invention water blockoff injecting paste material comprises the component of following weight part:
25 parts in II level C class flyash,
12 parts of sodium cellulose glycolate rapid dewatering accelerant for concrete,
42.5 100 parts of silicate cement P.O and
85 parts of high-pressure water-enriched karst region underground water (the pH value is 6.6).
A kind of tunnel, high-pressure water-enriched karst region water blockoff of above-mentioned present embodiment preparation method of injecting paste material may further comprise the steps:
(1) silicate cement that II level C class flyash and the 100 weight part labels of 25 weight parts are P.O 42.5 mixes, and is stirred well at normal temperatures then evenly, obtains silicate cement-mixture of fly ash;
(2) silicate cement-mixture of fly ash that step (1) is obtained adds in the water of 85 weight parts, and institute's water is the underground water of high-pressure water-enriched karst region, and the pH value is 6.6, is stirred well under the normal temperature evenly, obtains the aqueous solution of silicate cement-flyash;
(3) the sodium cellulose glycolate rapid dewatering accelerant for concrete of 12 weight parts is added in the aqueous solution of silicate cement-flyash that step (2) obtains, stir while adding at normal temperatures, after stirring, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
Above step (1) to the normal temperature in the step (3) refers to that all temperature is 10 ℃～38 ℃ situation.
Learn that after testing Zhi Bei grouting serous fluid funnel viscosity is 27s as stated above, but pump time 9.5h, calculus body 3d ultimate compression strength is 3.1MPa, 7 days ultimate compression strength is 9.8MPa.
The above only is preferred implementation of the present invention, and protection scope of the present invention also not only is confined to above-described embodiment.All technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Be noted that for those skilled in the art, the improvements and modifications under the prerequisite that does not break away from the principle of the invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. tunnel, high-pressure water-enriched karst region water blockoff injecting paste material is characterized in that, comprises the component of following weight part:
15～25 parts in flyash,
5～12 parts of rapid dewatering accelerant for concrete,
100 parts of silicate cements and
60～100 parts in water.
2. tunnel, high-pressure water-enriched karst region according to claim 1 water blockoff injecting paste material is characterized in that, described flyash is I level F class flyash, II level F class flyash, I level C class flyash or II level C class flyash.
3. tunnel, high-pressure water-enriched karst region according to claim 1 water blockoff injecting paste material is characterized in that, described rapid dewatering accelerant for concrete comprises 711 type rapid dewatering accelerant for concrete or sodium cellulose glycolates.
4. according to each tunnel, described high-pressure water-enriched karst region water blockoff injecting paste material in the claim 1～3, it is characterized in that, described water is the underground water of ordinary tap water, high-pressure water-enriched karst region or the surface water of high-pressure water-enriched karst region, and the pH value of described water is 6～7.5.
5. tunnel, high-pressure water-enriched karst region according to claim 4 water blockoff injecting paste material is characterized in that, the label of described silicate cement is P.O 32.5 or P.O 42.5.
6. tunnel, high-pressure water-enriched karst region water blockoff may further comprise the steps with the preparation method of injecting paste material:
(1) flyash of 15～25 weight parts and the silicate cement of 100 weight parts are mixed, fully stir then, obtain silicate cement-mixture of fly ash;
(2) fully stir in the water of the silicate cement that step (1) is obtained-mixture of fly ash adding 60～100 weight parts, obtain the aqueous solution of silicate cement-flyash;
(3) rapid dewatering accelerant for concrete of 5～12 weight parts is added in the aqueous solution of silicate cement-flyash that step (2) obtains, fully stir simultaneously, obtain tunnel, high-pressure water-enriched karst region water blockoff injecting paste material.
7. tunnel, high-pressure water-enriched karst region according to claim 6 water blockoff is with the preparation method of injecting paste material, it is characterized in that, described flyash is I level F class flyash, II level F class flyash, I level C class flyash or II level C class flyash, and described rapid dewatering accelerant for concrete comprises 711 type rapid dewatering accelerant for concrete or sodium cellulose glycolates.
8. tunnel, high-pressure water-enriched karst region according to claim 6 water blockoff is with the preparation method of injecting paste material, it is characterized in that, described water is the underground water of ordinary tap water, high-pressure water-enriched karst region or the surface water of high-pressure water-enriched karst region, and the pH value of described water is 6～7.5.
9. according to the preparation method of tunnel, the described high-pressure water-enriched karst region of claim 6～8 water blockoff with injecting paste material, it is characterized in that the label of described silicate cement is P.O 32.5 or P.O 42.5.
10. tunnel, high-pressure water-enriched karst region according to claim 6 water blockoff is characterized in that with the preparation method of injecting paste material the whipping temp in described step (1)～(3) is normal temperature.
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Cited By (7)
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| CN104775789A (en) * | 2015-04-28 | 2015-07-15 | 武汉大学 | Self-dissolving grouting reinforcing method for water-rich broken soft rock tunnel |
| CN106278022A (en) * | 2016-08-08 | 2017-01-04 | 福建永强岩土股份有限公司 | A kind of formula of foundation treatment engineering mixed serum and preparation method thereof |
| CN107572994A (en) * | 2017-09-30 | 2018-01-12 | 山东大学 | High Efficiency Superfine cement base combined casting material, preparation technology and application for water-rich sand layer grouting treatment |
| CN108793936A (en) * | 2018-07-05 | 2018-11-13 | 常州蓝森环保设备有限公司 | A kind of preparation method of the mining water-enriched filling material of high-strength |
| CN110130936A (en) * | 2019-06-06 | 2019-08-16 | 中铁十一局集团城市轨道工程有限公司 | It dashes forward in a kind of shield tunneling process and meets the construction method of untreated solution cavity or crack |
| CN110885221A (en) * | 2019-11-22 | 2020-03-17 | 安徽春雨安全科技有限公司 | Mining sealing material with early strength and high fluidity and use method |
| CN114920537A (en) * | 2022-06-06 | 2022-08-19 | 山东大学 | High-permeability and high-bonding type grouting reinforcement material suitable for water-rich crushed rock stratum and preparation method thereof |
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| CN107572994A (en) * | 2017-09-30 | 2018-01-12 | 山东大学 | High Efficiency Superfine cement base combined casting material, preparation technology and application for water-rich sand layer grouting treatment |
| CN107572994B (en) * | 2017-09-30 | 2019-07-16 | 山东大学 | High Efficiency Superfine cement base combined casting material, preparation process and application for water-rich sand layer grouting treatment |
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| CN110130936A (en) * | 2019-06-06 | 2019-08-16 | 中铁十一局集团城市轨道工程有限公司 | It dashes forward in a kind of shield tunneling process and meets the construction method of untreated solution cavity or crack |
| CN110885221A (en) * | 2019-11-22 | 2020-03-17 | 安徽春雨安全科技有限公司 | Mining sealing material with early strength and high fluidity and use method |
| CN114920537A (en) * | 2022-06-06 | 2022-08-19 | 山东大学 | High-permeability and high-bonding type grouting reinforcement material suitable for water-rich crushed rock stratum and preparation method thereof |
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| CN103274650B (en) | 2015-04-29 |
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