CN102733849B - Filling body grouting reinforcement method - Google Patents
Filling body grouting reinforcement method Download PDFInfo
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- CN102733849B CN102733849B CN201110087502.9A CN201110087502A CN102733849B CN 102733849 B CN102733849 B CN 102733849B CN 201110087502 A CN201110087502 A CN 201110087502A CN 102733849 B CN102733849 B CN 102733849B
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- grouting
- high water
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- flyash
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Abstract
The invention relates to a filling body grouting reinforcement method which comprises the following steps of: setting a grouting pipe; setting a coal ash injection pipe and a high water grouting pipe in a cross manner in a space to be filled; grouting the filling body; injecting coal ash and high water into the space to be filled through the coal ash injection pipe connected with a power plant coal ash station and the high water grouting pipe connected with a high water grouting station respectively; and grouting completion: after the coal ash and high water are sufficiently mixed and filled in the space to be filled, cutting the connection between the coal ash injection pipe and the power plant coal ash station in the filling area and the connection between the high water grouting pipe and the high water grouting station to finish the filling body grouting reinforcement. According to the invention, the coal ash and high water are added into the space to be filled through the coal ash injection pipe and the high water grouting pipe respectively so that the periodic weighting length after grouting is obviously prolonged than that before grouting. The pressure appearance of the filling operation face can be obviously improved, and the deformation control on the top plate of the filling operation face is enhanced.
Description
Technical field
The present invention relates to a kind of grouting method of building retrofilling coal-mining technique, particularly relate to a kind of obturation grouting reinforcing method.
Background technology
Obturation grouting reinforcing technology, refer under building, carry out comprehensive mechanization filling coal mining technology basis on, adopt flyash, high-water material and water, configure corresponding slurry respectively, down-hole is transported to by grouting pipe, finally inject in the obturation in backfill region, loose pack body is carried out to the technology of high density space reinforcing.
Single carries out filling with spoil flyash to the goaf under building, and the stope periodic weighting step pitch of its placement method increases by 15 ~ 20 meters (the periodic weighting step pitch of caving method is about about 20 meters) than caving method.But exploiting propagation and employment fast along with building lower solid filling, having higher requirement to filling quality, therefore, single spoil flyash carries out to the goaf under building the requirement that filling has been difficult to reach actual job.
Summary of the invention
The object of the invention is to, overcome the defect of above-mentioned prior art and a kind of obturation grouting reinforcing method obviously can improved filling operation surface pressure and manifest, strengthen the roof deformation control of filling operation face is provided.
For achieving the above object, the present invention takes following design scheme:
A kind of obturation grouting reinforcing method of the present invention, described obturation grouting reinforcing comprises the steps: to arrange Grouting Pipe: flyash ascending pipe arranged in a crossed manner and high water Grouting Pipe in space to be filled; Obturation slip casting: inject flyash and Gao Shui respectively by the flyash ascending pipe be connected with fly ash in electric power plant station and the high water Grouting Pipe that is connected with high water slip casting station in space to be filled; Slip casting is complete: until flyash and Gao Shui after fully mixing in described space to be filled and tamp, cut off the connection at the flyash ascending pipe of this fill area and the connection at fly ash in electric power plant station and high water Grouting Pipe and high water slip casting station, complete obturation grouting reinforcing.
Preferably, arrange in the step of Grouting Pipe described, the top that flyash ascending pipe and high water Grouting Pipe are arranged on the stowage conveyer in space to be filled is online.
Preferably, flyash ascending pipe picks out from the tunnel be communicated with described space to be filled with high water Grouting Pipe, and is connected with high water slip casting station with fly ash in electric power plant station respectively.
Preferably, flyash ascending pipe and high water Grouting Pipe are provided with the presbyopia that several diameters are 10 ~ 30mm.
Preferably, the eye spacing 200 ~ 300mm of presbyopia, and along canal path to circumference arrange.
Advantage of the present invention is: because the present invention is respectively by flyash ascending pipe and high water Grouting Pipe, and adding to space to be filled can flyash and Gao Shui, and after making slip casting, water component obviously extends than before slip casting the cycle.Injecting paste material serves significant inhibitory action to top board.Therefore, for the backfill region of colliery or other mining work planes, adopt grouting reinforcing method of the present invention, the pressure manifestation in filling operation face can be improved significantly, strengthen the Deformation control of filling operation face top board.
Accompanying drawing explanation
Fig. 1 is operating principle schematic diagram of the present invention.
Detailed description of the invention
See Fig. 1, the preferred embodiment of a kind of obturation grouting reinforcing of the present invention shown in it method, obturation grouting reinforcing of the present invention comprises the steps: to arrange Grouting Pipe: flyash ascending pipe 7 arranged in a crossed manner and high water Grouting Pipe 6 in space to be filled, " arranged in a crossed manner " described in the present embodiment, can for after arranging a flyash ascending pipe 7, a high water Grouting Pipe 6 is set again, is then circularly set successively; Also for after arranging two or many flyash ascending pipes 7, then two or many high water Grouting Pipe 6 can be set, also can carry out other various combinations arranged in a crossed manner.
In addition, in the present embodiment, described space to be filled is under building after comprehensive mechanical coal mining, the idle area formed, if do not carry out filling reinforcing in this region, then probably can cause sinking of bank upper building even to collapse, therefore, the present invention injects flyash and Gao Shui by flyash ascending pipe 7 and high water Grouting Pipe 6 to this space to be filled, and the two is after mixing is solidified, and has good space reinforcement effect.Preferably, the top that described flyash ascending pipe 7 and high water Grouting Pipe 6 are arranged on the stowage conveyer (not shown) in space to be filled is online; Such as, top flyash ascending pipe 7 and high water Grouting Pipe 6 being directly hung in stowage conveyer is online.It should be noted that, high water used in the present invention is a kind of filling curdled mixt, directly can buy from " Jizhong Energy Co., Ltd.'s Xingtai Coal Mine ", and cement or other coagulated materials of the prior art can be adopted to carry out filling condensation as Gao Shui.
Arranging after Grouting Pipe step completes, just by such as various actuating unit (such as: pump), in space to be filled, inject flyash and Gao Shui.Particularly, in space to be filled, flyash and Gao Shui is injected respectively by the flyash ascending pipe 7 be connected with fly ash in electric power plant station 1 and be connected with high water slip casting station 3 high water Grouting Pipe 6.In the present embodiment, described flyash ascending pipe 7 picks out from the tunnel be communicated with described space to be filled with high water Grouting Pipe 6, and is connected with high water slip casting station 3 with fly ash in electric power plant station 1 respectively.
After above-mentioned steps, slip casting process can be completed.Namely, until flyash and Gao Shui after fully mixing in described space to be filled and tamp, cut off the connection at the flyash ascending pipe 7 of this fill area and the connection at fly ash in electric power plant station 1 and high water Grouting Pipe 6 and high water slip casting station 3, just can complete obturation grouting reinforcing technique of the present invention.
Preferably, in order to make grouting reinforcing of the present invention more even, the present invention is provided with the presbyopia that several diameters are 10 ~ 30mm on described flyash ascending pipe 7 and high water Grouting Pipe 6; Further, further, the eye spacing 200 ~ 300mm of described presbyopia, and along canal path to circumference arrange.
Particularly, two filling routes are provided with in the course of work of the present invention, that is:
(1) high water route line is noted:
Height water slip casting station, down-hole 3 by high water Grouting Pipe 6 by Gao Shui via the tunnel 4 be communicated with space to be filled, be delivered to the space to be filled at force piece 5 rear, and inject the inside of obturation;
(2), flyash route is noted:
Fly ash in electric power plant station, ground 1, by being arranged on the flyash ascending pipe (7) of down-hole via the tunnel 4 be communicated with space to be filled at least partly, being also delivered to the space to be filled at force piece 5 rear, and injecting the inside of obturation.
The present invention is tunnel 4 can be the supply gate of coal-face, also can be headentry road.Described obturation is the solid after filling.
Technique effect of the present invention is:
From on April 12nd, 2010 by the end of 8 the end of month, inventors performed a large amount of Practical Project experiments.Such as, 12 pipelines are respectively buried in the air way in certain filling operation face, scraper-trough conveyer road underground, and accumulative note 15844 cubes, flyash, notes 144 tons, high water.
According to the display of this filling operation face obturation actual measurement monitored data record, reach a conclusion: after slip casting, water component obviously extends than before slip casting the cycle.Injecting paste material serves significant inhibitory action to top board.Slip casting come to press cycle average out to 37.1 meters, after slip casting, water component increases to 41 meters, and periodic weighting step pitch extends 10% on year-on-year basis.Visible, grouting reinforcing method of the present invention is adopted to work plane backfill region, the pressure manifestation in filling operation face can be improved significantly, strengthen the Deformation control of filling operation face top board.
Obviously, those of ordinary skill in the art, by a kind of obturation grouting reinforcing method of the present invention, can form various types of space filling technique.
Above-described embodiment is used for illustrative purposes only; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the present invention; various change and modification can also be made; therefore all equivalent technical schemes also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.
Claims (5)
1. an obturation grouting reinforcing method, is characterized in that: described obturation grouting reinforcing comprises the steps:
-Grouting Pipe is set: flyash ascending pipe (7) arranged in a crossed manner and high water Grouting Pipe (6) in space to be filled, after a flyash ascending pipe (7) is first set, a high water Grouting Pipe (6) is set again, then be circularly set successively, described flyash ascending pipe (7) and high water Grouting Pipe (6) arrange several presbyopia, described presbyopia along canal path to circumference arrange;
-obturation slip casting: inject flyash and Gao Shui respectively by the flyash ascending pipe (7) be connected with fly ash in electric power plant station (1) and the high water Grouting Pipe (6) that is connected with high water slip casting station (3) in space to be filled;
-slip casting is complete: until flyash and Gao Shui after fully mixing in described space to be filled and tamp, cut off the flyash ascending pipe (7) of fill area and the connection at fly ash in electric power plant station (1) and high water Grouting Pipe (6) and the connection of high water slip casting station (3), complete obturation grouting reinforcing.
2. obturation grouting reinforcing method according to claim 1, it is characterized in that: arrange in the step of Grouting Pipe described, the top that described flyash ascending pipe (7) and high water Grouting Pipe (6) are arranged on the stowage conveyer in space to be filled is online.
3. obturation grouting reinforcing method according to claim 2, it is characterized in that: described flyash ascending pipe (7) picks out from the tunnel be communicated with described space to be filled with high water Grouting Pipe (6), and be connected with high water slip casting station (3) with fly ash in electric power plant station (1) respectively.
4. the obturation grouting reinforcing method according to claim 1 or 2 or 3, is characterized in that: the diameter of described presbyopia is 10 ~ 30mm.
5. obturation grouting reinforcing method according to claim 4, is characterized in that: the eye spacing of described presbyopia is 200 ~ 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087502.9A CN102733849B (en) | 2011-04-06 | 2011-04-06 | Filling body grouting reinforcement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087502.9A CN102733849B (en) | 2011-04-06 | 2011-04-06 | Filling body grouting reinforcement method |
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| Publication Number | Publication Date |
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| CN102733849A CN102733849A (en) | 2012-10-17 |
| CN102733849B true CN102733849B (en) | 2015-04-15 |
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| CN201110087502.9A Active CN102733849B (en) | 2011-04-06 | 2011-04-06 | Filling body grouting reinforcement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106246194B (en) * | 2016-08-23 | 2019-10-18 | 甘肃路桥建设集团有限公司 | The reinforcing Treatment Methods of tunnel roof fall wall caving |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434176A (en) * | 2003-02-25 | 2003-08-06 | 广州市泰利斯固结补强工程有限公司 | Water-stopping strengthening reinforcement construction method for tunnel structure |
| CN201148880Y (en) * | 2007-10-25 | 2008-11-12 | 金川集团有限公司 | Dredging apparatus filling with paste delivery pipeline using fill mining method |
| CN101407395A (en) * | 2008-11-06 | 2009-04-15 | 昆明理工大学 | Fly ash-based grouting filler for mine |
-
2011
- 2011-04-06 CN CN201110087502.9A patent/CN102733849B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434176A (en) * | 2003-02-25 | 2003-08-06 | 广州市泰利斯固结补强工程有限公司 | Water-stopping strengthening reinforcement construction method for tunnel structure |
| CN201148880Y (en) * | 2007-10-25 | 2008-11-12 | 金川集团有限公司 | Dredging apparatus filling with paste delivery pipeline using fill mining method |
| CN101407395A (en) * | 2008-11-06 | 2009-04-15 | 昆明理工大学 | Fly ash-based grouting filler for mine |
Non-Patent Citations (3)
| Title |
|---|
| 建筑物下综合机械化充填采煤技术;郝宝生;《煤矿开采》;20100630;第15卷(第3期);39-41 * |
| 煤矿采空塌陷区注浆加固施工;方磊等;《施工技术》;20051230;357-359 * |
| 石太高速公路煤矿采空区地基注浆加固技术;张志沛;《路基工程》;19961230(第06期);47-49 * |
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| CN102733849A (en) | 2012-10-17 |
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Effective date of registration: 20170314 Address after: 054000 West Street, West Bridge, Hebei, Xingtai, No. 126 Patentee after: Hebei Cut-and-fill Mining Technology company limited Patentee after: Hebei Coal Science Research Institute Address before: 054026 Xingtai West Bridge Xingtai mine, Hebei Patentee before: Jizhong Energy Resources Co., Ltd. |
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Address after: 054000 No.126 Tuanjie West Street, Qiaoxi District, Xingtai City, Hebei Province Patentee after: HEBEI FILLING MINING TECHNOLOGY Co.,Ltd. Patentee after: Hebei Coal Science Research Institute Co.,Ltd. Address before: 054000 No.126 Tuanjie West Street, Qiaoxi District, Xingtai City, Hebei Province Patentee before: HEBEI FILLING MINING TECHNOLOGY Co.,Ltd. Patentee before: HEBEI COAL Research Institute |