CN104033152A - Solid filling mining design method under building - Google Patents
Solid filling mining design method under building Download PDFInfo
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- CN104033152A CN104033152A CN201410291130.5A CN201410291130A CN104033152A CN 104033152 A CN104033152 A CN 104033152A CN 201410291130 A CN201410291130 A CN 201410291130A CN 104033152 A CN104033152 A CN 104033152A
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Abstract
The invention discloses a solid filling mining design method under a building. A set of complete solid filling mining design method is built. The method comprises the steps of ground protection building deformation-resistant capability assessment, subsidence damage protection level determination, ground surface building subsidence value and maximum born mining height estimation, coal bed mining height and goaf grain plumpness design and control, ground surface building subsidence actual measurement and feedback and the like. The solid filling mining design method has the advantages that the method is simple; the operation is easy; the accuracy is high; the filling effect can be improved; too high filling cost can be avoided; and wide practicability is realized.
Description
Technical field
The present invention relates to a kind of solid filling design of mining coal method, especially one and be applicable to solid filling design of mining coal method under building.
Background technology
In recent years, under the exploitation of the extensive high strength of coal, caused a series of resource and environment problem, the environmental problem that wherein " three times " press the Mine Solid Wastes such as coal problem and spoil, flyash to cause becomes mining area needs the problem of solution badly.Since solid filling coal-mining technique is researched and developed successfully, become solution " three times " and pressed one of effective technical way of coal and mining area pollution problem, extended at present more than ten mining area, the whole nation.Change for advancing coal production mode; solve " three times " (under building, under railway, water body inferior) and press the resource exploitation problems such as coal and residual coal at the margins of mining areas; improve Coal Resource Development and utilize level; improve environment of mining area; promote coal industry to develop in a healthy way; build a Harmonious Society; in January, 2013; National Energy Board, the Ministry of Finance, Ministry of Land and Resources and Environmental Protection Department have been studied and defined " coal mine filling exploitation job guide suggestion ", require to carry out in conjunction with mining area is actual in China.
Solid filling coal-mining technique is taking spoil, flyash, loess etc. as filler, goaf is being carried out on the basis of filling, realize " three times " and press the exploitation of coal scale, reach the emission treatment problem that improves the coal resources rate of extraction and solve solid waste spoil and flyash, had important practical significance and wide application prospect.But in solid filling coal-mining technique implementation process, goaf filling is mainly taking sold stowing as main, and the rate of enriching is more than 90%, and filling cost is high, and the many buildings in ground do not need very high substantial rate; Meanwhile, solid filling coal-mining technique, in implementation process, does not have a set of complete mining Design method, and for example: the object of underground filling and surface protection object are not set up and contacted, filling is all taking sold stowing as main.Therefore, the development of solid filling coal-mining technique is in the urgent need to a kind of building retrofilling design of mining coal method.
Summary of the invention
Technical problem: the object of the invention is for the problem existing in prior art, provide that a kind of method is simple, easy to operate, accuracy is high, can improve filling effect, avoid the too high method for designing of mining for building retrofilling of filling cost.
Technical scheme; Under building of the present invention, solid filling mining Design method, comprises the steps:
A. assess according to fabric structure form, material and the non-deformability to building of ground protection, then determine its Subsidence damage protection class by " building, water body, railway and main roadway Coal Pillar Design and pressure coal mining code ";
B. estimate parameter with reference to mining area surface depression actual measurement, adopt surface buildings depression value under the different mining heights of Using Probability Integral Method To Predicate, determine the maximum mining height M that building can bear
max;
C. according to known coal seam design mining height M, determine that mining thickness and goaf enrich rate, by formula: M
max=M (1-
η) draw maximum mining height M
max, in formula: η is that rate is enriched in goaf, thereby determines the critical substantial rate in goaf: η
min=1-M
max/ M;
D. adopting quality proportioning is that spoil and the flyash of 1:0.2～1:0.6 carries out filling to goaf, adopt the reinforcement mechanism of filling hydraulic support to tamp the spoil and the flyash that are filled into goaf, the mass ratio of controlling extraction coal and filler is not less than 1:1.2～1:1.6 simultaneously;
E. by set up settlement observation station on ground, earth's surface building subsidence is surveyed, to data analysis, and feed back in time the substantial rate for adjusting goaf.
Under the different mining heights of described Using Probability Integral Method To Predicate, surface buildings depression value comprises expectation building inclination, curvature and horizontal distortion.
Beneficial effect: the present invention has set up the method for designing of a set of complete solid filling exploitation; comprise: the building non-deformability of ground protection is assessed, definite, the surface buildings depression value of Subsidence damage protection class are enriched rate design and control, surface buildings depression actual measurement with maximum mining height expectation, mining thickness and the goaf of bearing and feed back etc.; its method is simple; easy to operate; accuracy is high; can improve filling effect, avoid filling cost too high, there is practicality widely.
Detailed description of the invention
Solid filling mining Design method under building of the present invention, concrete steps are as follows:
A. according to fabric structure form, the material characteristics of ground protection, building non-deformability is assessed, then determined its Subsidence damage protection class by " building, water body, railway and main roadway Coal Pillar Design and pressure coal mining code ";
B. according to building subsidence infringement protection class, estimate parameter with reference to mining area surface depression actual measurement, adopt surface buildings depression value under the different mining heights of Using Probability Integral Method To Predicate, comprise and estimate building inclination, curvature and horizontal distortion, more than value, all within building subsidence infringement protection class, is determined the maximum mining height that building can bear;
C. the maximum mining height that building can bear on the estimation, rate is enriched in design goaf, and its calculating formula is: M
max=M (1-η), M in formula
maxfor the maximum mining height that building can bear, M is for designing mining height in coal seam, and η is that rate is enriched in goaf;
D. according to M
max=M (1-η) can obtain, and for the ground object (building) of certain concrete filling mining protection, has critical substantial rate η
min=1-M
max/ M, therefore, the substantial rate η in solid filling coal mining goaf can not be less than η min;
E. according to critical substantial rate η
min, by selecting suitable solid filling material, optimize solid filling coal winning technology, controlling work plane coal mining output and the measure of goaf filling amount, control the rate of enriching;
F. in solid filling exploitation implementation process, the building subsidence value (comprising inclination, curvature and horizontal distortion etc.) of the method that adopts conventional subsidence observation to surface protection measured, and feeds back in time and adjust the substantial rate in goaf.
Embodiment 1,
A. certain ground, ore deposit protection building is rural area house owed by a citizen; its structure is post and panel structure or brick mix structure; brick wall load-bearing; masonry basis; non-deformability is poor; according to " building, water body, railway and main roadway Coal Pillar Design and pressure coal mining code ", most of in district is the brick structured bungalow of III level protection, and therefore its horizontal distortion limiting value 6.0mm/m, curve limit value are 0.610
-3/ m, tilt boundary value are 10.0mm/m;
B. according to the building subsidence value under the different mining height conditions of Using Probability Integral Method To Predicate, obtain the maximum mining height M that building can bear
maxfor 460mm, known coal seam design mining height M is 3000mm, and therefore the critical substantial rate in goaf is η
min=1-M
max/ M=1-460/3000=0.847, the substantial rate in solid filling goaf can not be lower than 0.847, the safe handling of guarantee surface buildings;
C. in solid filling production technique implementation process, adopt spoil and the flyash that quality proportioning is 1:0.2 to carry out filling to goaf, adopt the reinforcement mechanism of filling hydraulic support to tamp the spoil and the flyash that are filled into goaf, the mass ratio of controlling extraction coal and filler is not less than 1:1.5 simultaneously.
D. by set up settlement observation station on ground, earth's surface building subsidence is surveyed, to data analysis, and feed back in time the substantial rate for adjusting goaf.
Claims (2)
1. a solid filling mining Design method under building, is characterized in that:
A. assess according to fabric structure form, material and the non-deformability to building of ground protection, then determine its Subsidence damage protection class by " building, water body, railway and main roadway Coal Pillar Design and pressure coal mining code ";
B. estimate parameter with reference to mining area surface depression actual measurement, adopt surface buildings depression value under the different mining heights of Using Probability Integral Method To Predicate, determine the maximum mining height M that building can bear
max;
C. according to known coal seam design mining height M, determine that mining thickness and goaf enrich rate, by formula: M
max=M (1-η) draws maximum mining height M
max, in formula: η is that rate is enriched in goaf, thereby determines the critical substantial rate in goaf: η
min=1-M
max/ M;
D. adopt quality proportioning be 1:0.2～: the spoil of 1:0.6 and flyash carry out filling to goaf, adopt the reinforcement mechanism of filling hydraulic support to tamp the spoil and the flyash that are filled into goaf, the mass ratio of controlling extraction coal and filler is not less than 1:1.2～1:1.6 simultaneously;
E. by set up settlement observation station on ground, earth's surface building subsidence is surveyed, to data analysis, and feed back in time the substantial rate for adjusting goaf.
2. solid filling mining Design method under a kind of building according to claim 1, is characterized in that: under the different mining heights of described Using Probability Integral Method To Predicate, surface buildings depression value comprises expectation building inclination, curvature and horizontal distortion.
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Cited By (10)
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| CN104763464A (en) * | 2015-01-30 | 2015-07-08 | 河北煤炭科学研究院 | Predicting method of filling coal mining ground surface deformation based on curved beam rock stratum structure |
| CN107944148A (en) * | 2017-11-28 | 2018-04-20 | 中国矿业大学 | A kind of critical Full Ratio design method of filling mining |
| CN108868770A (en) * | 2018-06-12 | 2018-11-23 | 中国矿业大学 | A kind of filling mining rock stratum position state is precisely controlled design method |
| CN109025998A (en) * | 2018-08-02 | 2018-12-18 | 缪协兴 | A kind of thick sandstone recovery method using goaf solid filling technology |
| CN109209379A (en) * | 2018-09-30 | 2019-01-15 | 中国矿业大学 | A kind of mine, which picks up, fills+X exploitation pattern |
| CN109209380A (en) * | 2018-09-30 | 2019-01-15 | 中国矿业大学 | A kind of mine, which picks up, fills control recovery method |
| CN109555556A (en) * | 2019-01-21 | 2019-04-02 | 中国矿业大学 | A kind of solid filling coal mining Full Ratio design method towards cultivated land protection |
| CN115344928A (en) * | 2022-08-19 | 2022-11-15 | 中国矿业大学 | Method for calculating subsidence and subsidence of ground surface for deformation control of underground mining area |
| CN115423313A (en) * | 2022-09-01 | 2022-12-02 | 中煤科工生态环境科技有限公司 | Method, device, equipment and storage medium for setting building protection coal pillars by calculation method |
| CN116432275A (en) * | 2023-03-03 | 2023-07-14 | 华润电力(锡林郭勒)煤业有限公司 | Building protection method for cooperatively controlling ground surface subsidence and building limit deformation |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763464A (en) * | 2015-01-30 | 2015-07-08 | 河北煤炭科学研究院 | Predicting method of filling coal mining ground surface deformation based on curved beam rock stratum structure |
| CN107944148A (en) * | 2017-11-28 | 2018-04-20 | 中国矿业大学 | A kind of critical Full Ratio design method of filling mining |
| CN108868770A (en) * | 2018-06-12 | 2018-11-23 | 中国矿业大学 | A kind of filling mining rock stratum position state is precisely controlled design method |
| CN109025998A (en) * | 2018-08-02 | 2018-12-18 | 缪协兴 | A kind of thick sandstone recovery method using goaf solid filling technology |
| RU2720029C1 (en) * | 2018-09-30 | 2020-04-23 | Китайский Университет Горного Дела И Технологии | Coal mine development method, based on control of performance of second mining operations, separation of minerals from massif and laying of mined space |
| CN109209379A (en) * | 2018-09-30 | 2019-01-15 | 中国矿业大学 | A kind of mine, which picks up, fills+X exploitation pattern |
| CN109209380A (en) * | 2018-09-30 | 2019-01-15 | 中国矿业大学 | A kind of mine, which picks up, fills control recovery method |
| CN109555556A (en) * | 2019-01-21 | 2019-04-02 | 中国矿业大学 | A kind of solid filling coal mining Full Ratio design method towards cultivated land protection |
| CN109555556B (en) * | 2019-01-21 | 2020-01-14 | 中国矿业大学 | Solid filling coal mining filling rate design method for farmland protection |
| CN115344928A (en) * | 2022-08-19 | 2022-11-15 | 中国矿业大学 | Method for calculating subsidence and subsidence of ground surface for deformation control of underground mining area |
| CN115344928B (en) * | 2022-08-19 | 2024-03-22 | 中国矿业大学 | Surface subsidence superposition calculation method for deformation control of cultivated underground coal mining area |
| CN115423313A (en) * | 2022-09-01 | 2022-12-02 | 中煤科工生态环境科技有限公司 | Method, device, equipment and storage medium for setting building protection coal pillars by calculation method |
| CN116432275A (en) * | 2023-03-03 | 2023-07-14 | 华润电力(锡林郭勒)煤业有限公司 | Building protection method for cooperatively controlling ground surface subsidence and building limit deformation |
| CN116432275B (en) * | 2023-03-03 | 2024-05-14 | 华润电力(锡林郭勒)煤业有限公司 | Building protection method for cooperatively controlling ground surface subsidence and building limit deformation |
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Application publication date: 20140910 |
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