CN104564075A - Process for instructing filling mining by observing variation of filling sensitive layer - Google Patents
Process for instructing filling mining by observing variation of filling sensitive layer Download PDFInfo
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- CN104564075A CN104564075A CN201510048664.XA CN201510048664A CN104564075A CN 104564075 A CN104564075 A CN 104564075A CN 201510048664 A CN201510048664 A CN 201510048664A CN 104564075 A CN104564075 A CN 104564075A
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- filling
- sensitive layer
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- filling sensitive
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a process for instructing filling mining by observing the variation of a filling sensitive layer, which relates to the technical field of the filling mining. The process comprises the steps: (1) analyzing and determining the position and lithology of a filling sensitive layer above a filling coal face by utilizing a geophysical prospecting and drilling technology, determining rock mechanics parameters of the filling sensitive layer, and establishing a constitutive relation of the filling sensitive layer; (2) establishing a filling coal mining numerical value analysis model and a similar material simulation analysis model, predicting the relation between the variation of the filling sensitive layer and a surface protection target and a filling body filling rate, and determining maximum deflection of the filling sensitive layer when the required filling effect of the surface protection target is satisfied; (3) observing the variation of the filling sensitive layer in the filling mining process by utilizing a microseism technology in real time, instructing the filling mining in time according to the variation of the filling sensitive layer, and ensuring that the filling rate of filler can enable the deflection of the filling sensitive layer to stay in the calculated maximum value. By adopting the process, the movement of a rock layer can be effectively controlled by utilizing the minimum filling rate.
Description
Technical field
The present invention relates to filling coal mining technical field.
Background technology
China's large-scale coal exploitation for a long time causes and is simple and easy to adopt resource and sharply reduces; coal mining condition is increasingly sophisticated; " three times " mining pressed coal and safe working problem particularly outstanding, the enhancing of China's current ecological environmental protection consciousness also requires reasonably to develop coal resources by scientific and technical innovation.Because filling coal mining can alleviate strata movement deformation extent, effectively controls ground settlement, eliminate goaf potential safety hazard, thus become the emphasis of mine CONTROL OF STRATA MOVEMENT area research.
Through Practice and pondering for many years, the development of coal mine filling production technique is ripe day by day, possess the manufacture of filling critical equipment, filler medium selected and the ability such as proportioning, filling system and technological design, reached industrialization level, and obtained and apply widely.But still there are some problems in coal mine filling exploitation, topmost problem is exactly that filling mining exists blindness.The object of filling mining is to control strata movement distortion thus the protection realized control object; and different object of protections; its protection class is different; required filling effect is different; the pack completeness of corresponding filler is also just different; coal mine filling exploitation is now filling and does not consider lithology and the object of protection of overlying rock, causes the waste that some are unnecessary.In today that colliery situation is so severe, how to judge whether filling quality and effect reach re-set target, accomplish effectively to control rock movement with minimum pack completeness, reduce filling cost substantially, improve colliery economic benefit become coal mine filling exploitation must faced by problem.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of process being instructed filling mining by the change of observation filling sensitive layer; the change of filling sensitive layer and the relation between surface protection object and obturation circularity can be predicted; effectively instruct filling mining; effectively rock movement is controlled with minimum pack completeness; reduce filling cost substantially, improve colliery economic benefit.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Instructed a process for filling mining by the change of observation filling sensitive layer, comprise the steps:
(1) utilize physical prospecting and drilling technique analysis to determine position and the lithology of filling sensitive layer above filling coal mining work plane, determine the rock mechanics parameters of filling sensitive layer, set up the constitutive relation of filling sensitive layer;
(2) according to the nonlinear elastic deformation constitutive relation of filling sensitive layer, set up filling coal mining numerical analysis model, equivalent material simulating analytical model, according to the relation between filling coal mining numerical analysis model and equivalent material simulating analytical model prediction filling sensitive layer change and surface protection object and obturation Full Ratio, determine the largest amount of subsidence of the filling sensitive layer when meeting the filling effect required by the object of protection of earth's surface;
(3) utilize the change of filling sensitive layer in microseism technology real-time monitored filling mining process, the change according to filling sensitive layer instructs filling mining in time, guarantees that the Full Ratio of filler can meet filling sensitive layer deflection and calculate within the maximum value determined.
Further technical scheme, in described step (1), rock mechanics parameters comprises unit weight, bulk modulus, trimming modulus, cohesive strength, angle of internal friction and the saturated uniaxial tension of sensitive layer rock, compressive strength parameter.
Further technical scheme, microseism technology real-time monitored filling sensitive layer is utilized to change in described step (3), be specially micro seismic monitoring equipment to be evenly arranged within filling sensitive layer according to tumbling-type arrangement or near, and ensure to be positioned at directly over filling operation face and filling area, the change of Real-Time Monitoring filling sensitive layer, guarantees that the Full Ratio of filler can meet filling sensitive layer deflection and calculate within the maximum value determined.
The beneficial effect that produces of technique scheme is adopted to be: the present invention can predict the relation between the change of filling sensitive layer and surface protection object and obturation Full Ratio, effectively instruct filling mining, effectively rock movement is controlled with minimum pack completeness, reduce filling cost substantially, improve colliery economic benefit; Introduce concept and the Microseismic monitoring system of filling sensitive layer; monitor filling sensitive layer by microseism technology and change the control realized filling effect; filling coal mining has been pushed to become more meticulous, scientific; meet the filling demand of ecological environment and object of protection with minimum economic cost, realize the integration of filling coal mining Technological Economy.
Accompanying drawing explanation
Fig. 1 is Technology Roadmap of the present invention;
Fig. 2 is the schematic diagram of the embodiment of the present invention, and wherein 1,2,3,4,5 and 6 for being arranged in the microseismic detection equipment (wave detector) within filling sensitive layer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, a kind of concrete implementation step being instructed the process of filling mining by the change of observation filling sensitive layer:
(1) utilize probing and physical prospecting means to a certain Geological Structure in Coal Mine mainly filling sensitive layer carry out meticulous prospecting, determine the position of filling sensitive layer, by probing, core sampling is carried out to filling sensitive layer, in laboratory by testing and then determine the mechanics parameter of filling sensitive layer to sample, specifically comprise unit weight, bulk modulus, trimming modulus, cohesive strength, angle of internal friction, and the saturated uniaxial tension of sensitive layer rock, compressive strength parameter, set up the constitutive relation of filling sensitive layer, for next step numerical simulation and equivalent material simulating provide the geologic data on basis, namely filling sensitive layer can react the rock stratum of filling quality and effect in time, and it has, and thickness is thin, lithology is crisp, intensity is low, be out of shape fast feature,
(2) filling coal mining numerical analysis model, equivalent material simulating analytical model is set up according to parameters obtained in step (1), the deflection of filling sensitive layer when determining coal seam filling mining by Computer Numerical Simulation and laboratory equivalent material simulating means analysis, determine that this mine filling object of protection is not when destroyed, the largest amount of subsidence of filling sensitive layer;
(3) as shown in Figure 2, by drilling micro seismic monitoring equipment (wave detector) to be evenly arranged within filling sensitive layer according to tumbling-type arrangement or near, and ensure that it is positioned at directly over filling operation face and filling area, along with the propelling of work plane, filling sensitive layer can change by mining influence, produce small vibrations, these shock waves collected by wave detector, and then be transferred to acquisition station, computer analyzes the change of inverting determination filling sensitive layer according to these shock waves, the Full Ratio of obturation is improved in time when filling sensitive layer deflection exceedes above-mentioned theory value, strengthen support rear portion pressing device to the compaction force of obturation, thus guarantee filling effect.
Claims (3)
1. instructed a process for filling mining by the change of observation filling sensitive layer, it is characterized in that comprising the steps:
(1) utilize physical prospecting and drilling technique analysis to determine position and the lithology of filling sensitive layer above filling coal mining work plane, determine the rock mechanics parameters of filling sensitive layer, set up the constitutive relation of filling sensitive layer;
(2) according to the nonlinear elastic deformation constitutive relation of filling sensitive layer, set up filling coal mining numerical analysis model, equivalent material simulating analytical model, according to the relation between filling coal mining numerical analysis model and equivalent material simulating analytical model prediction filling sensitive layer change and surface protection object and obturation Full Ratio, determine the largest amount of subsidence of the filling sensitive layer when meeting the filling effect required by the object of protection of earth's surface;
(3) utilize the change of filling sensitive layer in microseism technology real-time monitored filling mining process, the change according to filling sensitive layer instructs filling mining in time, guarantees that the Full Ratio of filler can meet filling sensitive layer deflection and calculate within the maximum value determined.
2. a kind of process being instructed filling mining by the change of observation filling sensitive layer according to claim 1, is characterized in that in described step (1), rock mechanics parameters comprises unit weight, bulk modulus, trimming modulus, cohesive strength, angle of internal friction and the saturated uniaxial tension of sensitive layer rock, compressive strength parameter.
3. a kind of process being instructed filling mining by the change of observation filling sensitive layer according to claim 1, it is characterized in that in described step (3), utilizing microseism technology real-time monitored filling sensitive layer to change, be specially micro seismic monitoring equipment to be evenly arranged within filling sensitive layer according to tumbling-type arrangement or near, and ensure to be positioned at directly over filling operation face and filling area, the change of Real-Time Monitoring filling sensitive layer, guarantees that the Full Ratio of filler can meet filling sensitive layer deflection and calculate within the maximum value determined.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048664.XA CN104564075A (en) | 2015-01-30 | 2015-01-30 | Process for instructing filling mining by observing variation of filling sensitive layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510048664.XA CN104564075A (en) | 2015-01-30 | 2015-01-30 | Process for instructing filling mining by observing variation of filling sensitive layer |
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| CN104564075A true CN104564075A (en) | 2015-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441541A (en) * | 2018-11-06 | 2019-03-08 | 中国矿业大学 | A kind of coal mine gob filling body carrying compression ratio monitoring system and its monitoring method |
| CN116956649A (en) * | 2023-09-21 | 2023-10-27 | 山东新巨龙能源有限责任公司 | Coal mining filling demonstration system based on simulation technology |
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| CN1731177A (en) * | 2005-08-04 | 2006-02-08 | 西安理工大学 | Method for determination of engineering rock mass damage |
| CN1752356A (en) * | 2005-08-11 | 2006-03-29 | 西安理工大学 | Intelligent model constructuring method for analyzing cavity wall rock stability |
| WO2011103620A1 (en) * | 2010-02-26 | 2011-09-01 | Subsidence Control International Pty Ltd | A method of reducing subsidence or windblast impacts from longwall mining |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441541A (en) * | 2018-11-06 | 2019-03-08 | 中国矿业大学 | A kind of coal mine gob filling body carrying compression ratio monitoring system and its monitoring method |
| CN109441541B (en) * | 2018-11-06 | 2020-01-03 | 中国矿业大学 | Coal mine goaf filling body bearing compression rate monitoring system and monitoring method thereof |
| CN116956649A (en) * | 2023-09-21 | 2023-10-27 | 山东新巨龙能源有限责任公司 | Coal mining filling demonstration system based on simulation technology |
| CN116956649B (en) * | 2023-09-21 | 2023-12-15 | 山东新巨龙能源有限责任公司 | Coal mining filling demonstration system based on simulation technology |
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Application publication date: 20150429 |