CN103643680A - Emulsified asphalt grouting process - Google Patents
Emulsified asphalt grouting process Download PDFInfo
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- CN103643680A CN103643680A CN201310667524.1A CN201310667524A CN103643680A CN 103643680 A CN103643680 A CN 103643680A CN 201310667524 A CN201310667524 A CN 201310667524A CN 103643680 A CN103643680 A CN 103643680A
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- grouting
- mulseal
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Abstract
Provided is an emulsified asphalt grouting process. The grouting process includes the following steps that (1) grouting holes are dug in an object region; (2) emulsified asphalt and demulsifying agents are injected into the object region through the grouting holes via a double-liquid grouting pump, grouting pressure of the double-liquid grouting pump should be controlled to be 1.2-1.5 times that of stratum water pressure, the mass ratio of the emulsified asphalt to the demulsifying agents is 1: (0.6-1.2), and the demulsifying agents are sodium carbonate solutions; (3) after demulsification is completed, cement paste is reinjected, wherein the cement paste is injected into the object region through the grouting pump via the grouting holes, reinjected grouting pressure should be controlled to be 1.5-2.0 times that of the stratum water pressure, and final pressure should be maintained by more than 30 minutes. According to the emulsified asphalt grouting process, good anti-permeability and water blocking effects are achieved, and meanwhile, cost is reduced.
Description
Technical field
The present invention relates to underground construction antiseepage water-plugging technique field, especially a kind of grouting process.
Background technology
Slurry injection technique is, by grouting pump, injecting paste material is injected to target area, reaches a comprehensive engineering of various engineering objectives such as strengthening target area engineering performance, antiseepage water blockoff.According to the difference of the equipment such as injecting paste material, slip casting target area and grouting pump, can derive a plurality of subitems.This invention mainly for adopting mulseal as main injecting paste material, reach underground construction antiseepage, new technology of water blockoff object.
In current engineering, also conventional common slurry injection technique reaches object impervious, water blockoff, conventional injecting paste material is cement paste merit cement-sodium silicate two liquid slurries, this grouting water blocking method can produce good initial stage effect, but due to the shrinkage character of cement paste and the hydrolysis properties of water glass, inevitably can make the anaphase effect variation of slip casting, in engineering, have to adopt the method for repeated multiple times slip casting, to reach impervious and water blockoff long-term effect preferably.
In engineering, also useful pitch grouting method solves the impervious of engineering and water blockoff problem, due to the good impervious and water plugging effect of bituminous material, tends to obtain good engineering effort.But due to bituminous material thermal plastic property, this slurry injection technique need special grouting pump, pipe and special heat, heat-insulation system, make whole activities become very complicated, and the required economic input of engineering is larger, therefore, this method is in the less employing of engineering.
Summary of the invention
In order to overcome the deficiency that can not take into account cost and impervious and water plugging effect of existing grouting method, the invention provides a kind of when thering is good impervious and water plugging effect, the mulseal grouting process reducing costs.
The technical solution adopted for the present invention to solve the technical problems is:
A mulseal grouting process, described grouting process comprises the following steps:
(1) in target area, beat injected hole;
(2) pass through Double-liquid mud-injection pump, mulseal and demulsifier are injected to target area by injected hole, the grouting pressure of described Double-liquid mud-injection pump should be controlled 1.2～1.5 times of stratum hydraulic pressure, and the mass ratio of described mulseal and demulsifier is 1:(0.6～1.2), described demulsifier is soda ash solution;
(3), after breakdown of emulsion completes, carry out the multiple note of cement paste: by grouting pump, cement paste is injected to target area by injected hole, the grouting pressure of multiple note should be controlled at 1.5～2.0 times of stratum hydraulic pressure, and should keep final pressure more than 30 minutes.
Further, in described step (2), the breakdown of emulsion time is 5～15 minutes.
Further, in described step (3), cement paste notes again with the time interval of Double-liquid mud-injection pump slip casting and can be 5 minutes～and 8 hours.
Further again, the mass percent of described soda ash solution is 0.5～20%, for example, can adopt 0.5% soda ash solution, 1% soda ash solution, 5% soda ash solution, 12% soda ash solution or 20% soda ash solution, and concentration is higher, and demulsification is better.
Technical conceive of the present invention is: the invention of this project still adopts plant equipment and the facility of light water mud slurry injection technique, adopt mulseal to replace protobitumen as main injecting paste material, in slip casting process, adopt the reduction technique of pitch, make mulseal when arriving target slip casting region, substantially complete reduction, by round-about way, realize protobitumen slip casting, to reach good grouting for water blocking effect.
Mulseal be a kind of by after protobitumen emulsification (adding emulsifier to produce by High Rotation Speed) for the material of road construction in winter, it can simplify the techniques such as protobitumen heating and thermal insulation, by cal rolling and natural photosynthesis, make it be reduced to protobitumen, mulseal is a kind of material that existing market can conveniently be purchased, and because processing technology is easier, price is not high yet.Main material using mulseal as slip casting, coming part to replace cement paste or cement-sodium silicate slurry is because mulseal has the good property noted, can directly utilize Double-liquid mud-injection pump that mulseal is injected to target area together with demulsifier (alkali), within the control time, make mulseal reduction.
Beneficial effect of the present invention is mainly manifested in: when having good impervious and water plugging effect, reduce costs.
Accompanying drawing explanation
Fig. 1 is the flow chart of mulseal grouting process process.
Fig. 2 is the schematic diagram of mulseal slip casting.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
See figures.1.and.2, a kind of mulseal grouting process, described grouting process comprises the following steps:
(1) 6 dozens of injected holes in target area;
(2) by Double-liquid mud-injection pump 1, mulseal 3 and demulsifier 4 are injected to target area 6 by injected hole, the grouting pressure of described Double-liquid mud-injection pump 1 should be controlled 1.2～1.5 times of stratum hydraulic pressure, the mass ratio of described mulseal 3 and demulsifier 4 is 1:(0.6～1.2), described demulsifier 4 is soda ash solution;
(3) after breakdown of emulsion completes, be that mulseal 3 is reduced into after pitch 7, carry out the multiple note of cement paste 5: by grouting pump 2, cement paste 5 is injected to target area 6 by injected hole, the grouting pressure of multiple note should be controlled at 1.5～2.0 times of stratum hydraulic pressure, and should keep final pressure more than 30 minutes.
Further, in described step (2), the breakdown of emulsion time is 5～15 minutes.
Further, in described step (3), cement paste notes again with the time interval of Double-liquid mud-injection pump slip casting and can be 5 minutes～and 8 hours.
Further again, the mass percent of described soda ash solution is 0.5～20%, for example, can adopt 0.5% soda ash solution, 1% soda ash solution, 5% soda ash solution, 12% soda ash solution or 20% soda ash solution, and concentration is higher, and demulsification is better.
In the present embodiment, found out a kind of controlled breakdown of emulsion liquid, made mulseal can realize the reduction reaction of pitch when reaching slip casting target area.Through repetition test, find: aqueous slkali has demulsification, and can control by controlling the concentration of aqueous slkali the breakdown of emulsion process of mulseal, the i.e. time of mulseal reduction reaction.After mulseal mixes with soda ash solution, within 5～15 seconds, can realize basic reduction, this time can meet slurries in common engineering completely and from grouting pump, arrive the time of slip casting target area.The concentration of demulsifier is higher, the breakdown of emulsion time is shorter, the biliquid slurry grouting pressure of mulseal+demulsifier (generally can consider the proportioning of 1:1) should be controlled 1.2～1.5 times of stratum hydraulic pressure, the filling of biliquid slurry can utilize Double-liquid mud-injection pump conventional on market to realize, concrete grouting process is consistent with general two fluid grouting technique, just changes injecting paste material into mulseal and demulsifier.
In the present embodiment, after mulseal mixes with soda ash solution, within 5～15 seconds, pitch reduces substantially; The multiple note technique of filled with water mud after above-mentioned mulseal and breakdown of emulsion liquid two fluid grouting.The multiple note technique of filled with water mud can realize with common grouting pump conventional on market.Multiple cement injection has three effects, and the one, cement itself is basic matterial, can further reduce the pitch of mulseal; Another effect is that the relative mulseal denseness of cement paste is larger, can utilize cement and as-reduced pitch acting in conjunction, stops up larger water stream channel, further improves the effect of water blockoff; Also have one to be exactly to utilize higher cement paste grouting pressure, extrude the moisture that mulseal reduction reaction produces, and pitch and cement paste are clamp-oned to penetrating passage in the lump.The time of filled with water mud is controlled less demanding, can need to plant to a few hours somewhat with the last mulseal slip casting time interval according to concrete engineering.The grouting pressure of multiple note should be controlled at 1.5～2.0 times of stratum hydraulic pressure, and should keep final pressure more than 30 minutes.
Claims (4)
1. a mulseal grouting process, is characterized in that: described grouting process comprises the following steps:
(1) in target area, beat injected hole;
(2) pass through Double-liquid mud-injection pump, mulseal and demulsifier are injected to target area by injected hole, the grouting pressure of described Double-liquid mud-injection pump should be controlled 1.2～1.5 times of stratum hydraulic pressure, and the mass ratio of described mulseal and demulsifier is 1:(0.6～1.2), described demulsifier is soda ash solution;
(3), after breakdown of emulsion completes, carry out the multiple note of cement paste: by grouting pump, cement paste is injected to target area by injected hole, the grouting pressure of multiple note should be controlled at 1.5～2.0 times of stratum hydraulic pressure, and should keep final pressure more than 30 minutes.
2. a kind of mulseal grouting process as claimed in claim 1, is characterized in that: in described step (2), the breakdown of emulsion time is 5～15 minutes.
3. a kind of mulseal grouting process as claimed in claim 1, is characterized in that: in described step (3), it is 5 minutes～8 hours that cement paste is noted with the time interval of Double-liquid mud-injection pump slip casting again.
4. as a kind of mulseal grouting process of one of claim 1～3, it is characterized in that: the mass percent of described soda ash solution is 0.5～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667524.1A CN103643680A (en) | 2013-12-10 | 2013-12-10 | Emulsified asphalt grouting process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310667524.1A CN103643680A (en) | 2013-12-10 | 2013-12-10 | Emulsified asphalt grouting process |
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| CN103643680A true CN103643680A (en) | 2014-03-19 |
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| CN201310667524.1A Pending CN103643680A (en) | 2013-12-10 | 2013-12-10 | Emulsified asphalt grouting process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3252290A (en) * | 1961-10-27 | 1966-05-24 | Phillips Petroleum Co | Grouting of underwater formations |
| CN1078759A (en) * | 1992-05-11 | 1993-11-24 | 水利部交通部能源部南京水利科学研究院 | Caulking technology with tarring |
| JPH08296247A (en) * | 1995-04-26 | 1996-11-12 | Nisshin Kogyo Kk | Construction method for waterproofing of underground outer wall |
| JP2002147198A (en) * | 2000-11-15 | 2002-05-22 | Sementetsukusu Corp:Kk | Leakage preventing method for tunnel |
| CN102912795A (en) * | 2012-11-06 | 2013-02-06 | 中国水利水电科学研究院 | Device and method for stopping leakage by grouting low-heat asphalt |
| CN102942338A (en) * | 2012-09-13 | 2013-02-27 | 中国水利水电科学研究院 | Low-heat asphalt for grouting plugging of large leakage quantity and high flow velocity karst and preparation method thereof |
-
2013
- 2013-12-10 CN CN201310667524.1A patent/CN103643680A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3252290A (en) * | 1961-10-27 | 1966-05-24 | Phillips Petroleum Co | Grouting of underwater formations |
| CN1078759A (en) * | 1992-05-11 | 1993-11-24 | 水利部交通部能源部南京水利科学研究院 | Caulking technology with tarring |
| JPH08296247A (en) * | 1995-04-26 | 1996-11-12 | Nisshin Kogyo Kk | Construction method for waterproofing of underground outer wall |
| JP2002147198A (en) * | 2000-11-15 | 2002-05-22 | Sementetsukusu Corp:Kk | Leakage preventing method for tunnel |
| CN102942338A (en) * | 2012-09-13 | 2013-02-27 | 中国水利水电科学研究院 | Low-heat asphalt for grouting plugging of large leakage quantity and high flow velocity karst and preparation method thereof |
| CN102912795A (en) * | 2012-11-06 | 2013-02-06 | 中国水利水电科学研究院 | Device and method for stopping leakage by grouting low-heat asphalt |
Non-Patent Citations (2)
| Title |
|---|
| 刘靖宇等: "冻结滑动井壁壁间乳化沥青注浆技术", 《煤炭科学技术》 * |
| 闻庆权等: "乳化沥青在新型井壁夹层注浆中的应用", 《建井技术》 * |
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Application publication date: 20140319 |