CN108086977A - A kind of coal seam prevents water-resisting floor coal-mining method for water-bearing layer - Google Patents
A kind of coal seam prevents water-resisting floor coal-mining method for water-bearing layer Download PDFInfo
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- CN108086977A CN108086977A CN201711335415.4A CN201711335415A CN108086977A CN 108086977 A CN108086977 A CN 108086977A CN 201711335415 A CN201711335415 A CN 201711335415A CN 108086977 A CN108086977 A CN 108086977A
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- water
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- coal seam
- bottom plate
- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000005065 mining Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000006378 damage Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000003384 imaging method Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 description 5
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A kind of coal seam disclosed by the invention prevents water-resisting floor coal-mining method for water-bearing layer, is prevented suitable for mine water disaster.Method includes：Exploration obtains floor strata hydrogeologic condition and physico-mechanical properties, differentiates bottom plate nature water-resisting key strata；According to plate destructing depth, it is expected that design detection bore position, number, depth and inclination angle；Electrode, tunnel electrode and survey line are arranged in drilling, gathers the electrical and resistivity data that drills in real time, differentiates the collapse state of bottom plate nature water-resisting key strata；Coal seam back production design is carried out according to the situation of destruction.It solve thes problems, such as that coal seam prevents for water-bearing layer water damage, can ward off and exempt from bottom plate nature water-resisting key strata and destroy, prevent the loss at water source after water-resisting floor destruction, method is simple, and implementation cost is low.
Description
Technical field
The present invention relates to a kind of coal-mining method, especially a kind of coal seam suitable for mine water disaster prevention prevents for water-bearing layer
Water-resisting floor coal-mining method.
Technical background
With the exploitation of coal resources, coal mining is faced with more and more complex conditions.In coal production practice,
Coal seam proposes new challenge for Main aquifer special exploitation condition to the prevention of coal mining water damage.During seam mining, adopt
Dynamic stress damages bottom plate, largely new as caused by mining influence to pass through if bottom plate nature water-resisting key strata destroys
The water-resisting key strata destroyed is linked up in general character crack, and substantial amounts of water source can be caused to be lost in.Therefore, coal seam is solved to exploit for water-bearing layer
The collapse state of journey bottom plate nature water-resisting key strata differentiates and prevention is of great significance.
The content of the invention
Technical problem：The invention aims to overcome the shortcoming in prior art, it is aqueous to provide a kind of coal seam
Layer prevention water-resisting floor coal-mining method.
Technical solution：The coal seam of the present invention prevents water-resisting floor coal-mining method for water-bearing layer, comprises the following steps：
(1) aqueous working face of coal seam floor strata hydrogeologic condition and rock stratum physico-mechanical properties are obtained according to exploration
Information differentiates the key stratum of bottom plate nature water proof；
(2) water guide is adopted according to floor undulation and destroys the estimated aqueous Seam Floor Failure of the statistics calculation formula with depth
Depth；
(3) detection drilling is set in aqueous working face of coal seam bottom plate；
(4) resistivity imaging is carried out to the drilling that construction is completed；
(5) according to the bottom plate nature water-resisting key strata situation of different exploiting fields section, difference carries out seam mining.
It is as follows that the step (3) sets the step of detection drilling in aqueous coal seam：
A. arranged in roadway workface every 20m and bore nest one group of drilling of construction；
B. water guide is adopted according to floor undulation to destroy with depth, it is expected that determining the number and depth of every group of drilling；
C. every group of angle between drilling and horizontal plane uses high inclination-angle.
It is as follows that the step (4) carries out the step of resistivity imaging：
A. electrode, tunnel electrode and survey line are arranged in drilling, data acquisition transmission line and electrode are equipped in drilling；
B. after the completion of arrangement of measuring-line, when advance of the face, adopts electrical data into Mobile state by data acquisition transmission line
Collection；Resistivity imaging real time data acquisition is carried out using parallel resistance rate method；
C. according to the drilling electrical data and resistivity imaging back analysis collected；
D. geologic information and resistivity measurement are combined as a result, the resistivity of analysis floor undulation rock stratum in mining active process
Changing rule differentiates the destruction situation of bottom plate nature water-resisting key strata.
The seam mining of the bottom plate nature water-resisting key strata situation of the different exploiting field sections of the step (5) is as follows：
A. the non-destructive situation of bottom plate nature water-resisting key strata of institute exploiting field section, normal back production coal seam；
B. as, there are fissure zone and karst collapse col umn situation, first implemented in institute's exploiting field section bottom plate nature water-resisting key strata to the position
Slip casting blocks, and after waiing upon the reparation completely of bottom plate nature water-resisting key strata, then carries out coal seam back production；
C. as mining influence causes institute exploiting field section bottom plate nature water-resisting key strata to destroy, first slip casting is implemented at position to destroying
Closure after aqueous coal seam water is blocked to flow down and ooze, then carries out coal seam back production.
Every group of high inclination-angle used between drilling and horizontal plane is 30 °~90 °.
Advantageous effect：By adopting the above-described technical solution, the present invention by drilling arrange electrode, tunnel electrode and
Survey line, acquisition drilling in real time is electrically and then resistivity data, the collapse state of differentiation bottom plate nature water-resisting key strata carry out coal
Layer back production design.It solve thes problems, such as that coal seam prevents for water-bearing layer water damage, can ward off and exempt from the generation of bottom plate nature water-resisting key strata
It destroys, prevents the loss at water source after water-resisting floor destruction, actual operation is strong, and method is simple, and conceptual design is reasonable, implements into
This is low.There is wide applicability in the art.
Description of the drawings
Fig. 1 is that the coal seam of the present invention is the flow chart of water-bearing layer prevention water-resisting floor coal-mining method.
Specific embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings：
The coal seam of the present invention prevents water-resisting floor coal-mining method for water-bearing layer, is as follows：
(1) aqueous working face of coal seam floor strata hydrogeologic condition and rock stratum physico-mechanical properties are obtained according to exploration
Information material differentiates and determines bottom plate nature water-resisting key strata；
(2) water guide is adopted according to floor undulation and destroys the estimated aqueous Seam Floor Failure of the statistics calculation formula with depth
Depth；
h1=0.0085H+0.1665a+0.1079L-4.3579
In formula：h1Water guide is adopted for floor undulation and destroys band depth, and H is mining depth, and L is stope width, and α is coal
Inclination layer.
(3) detection drilling is set in aqueous working face of coal seam bottom plate, is as follows：
A. arranged in roadway workface every 20m and bore nest one group of drilling of construction；
B. destroyed according to working face water guide with depth, it is expected that determining the number and depth of every group of drilling；
C. for every group of angle between drilling and horizontal plane as far as possible using high inclination-angle, high inclination-angle is 30 °~90 °；
(4) resistivity imaging is carried out to the drilling that construction is completed, be as follows：
A. electrode, tunnel electrode and survey line are arranged in drilling, data acquisition transmission line and electrode are equipped in drilling；
B. after the completion of arrangement of measuring-line, real time data acquisition is carried out using parallel resistance rate method during the advance of the face；
C. according to the drilling electrical data and resistivity imaging back analysis collected；
D. geologic information and resistivity measurement are combined as a result, the resistivity of analysis floor undulation rock stratum in mining active process
Changing rule differentiates the collapse state of bottom plate nature water-resisting key strata；
(5) according to the bottom plate nature water-resisting key strata situation of different exploiting fields section, difference carries out seam mining, and specific steps are such as
Under：
A. the non-destructive situation of bottom plate nature water-resisting key strata of institute exploiting field section, routinely normal back production coal seam；
B. as in the section bottom plate nature water-resisting key strata of institute exploiting field there are situations such as fissure zone, karst collapse col umn, it is first real to the position
Slip casting closure is applied, after bottom plate nature water-resisting key strata is repaired completely, carries out coal seam back production；
C. as mining influence causes institute exploiting field section bottom plate nature water-resisting key strata to destroy, slip casting envelope is implemented at position to destroying
It is stifled, after aqueous coal seam water is blocked to flow down and ooze, carry out coal seam back production.
Claims (5)
1. a kind of coal seam prevents water-resisting floor coal-mining method for water-bearing layer, it is characterised in that comprises the following steps：
（1）The letter of aqueous working face of coal seam floor strata hydrogeologic condition and rock stratum physico-mechanical properties is obtained according to exploration
Breath differentiates the key stratum of bottom plate nature water proof；
（2）Water guide is adopted according to floor undulation and destroys the estimated aqueous Seam Floor Failure depth of the statistics calculation formula with depth
Degree；
（3）Detection drilling is set in aqueous working face of coal seam bottom plate；
（4）Resistivity imaging is carried out to the drilling that construction is completed；
（5）According to the bottom plate nature water-resisting key strata situation of different exploiting fields section, difference carries out seam mining.
2. a kind of coal seam according to claim 1 prevents water-resisting floor coal-mining method for water-bearing layer, it is characterised in that：
The step（3）The step of detection drilling is set in aqueous coal seam is as follows：
A. arranged in roadway workface every 20m and bore nest one group of drilling of construction；
B. water guide is adopted according to floor undulation to destroy with depth, it is expected that determining the number and depth of every group of drilling；
C. every group of angle between drilling and horizontal plane uses high inclination-angle.
3. a kind of coal seam according to claim 1 prevents water-resisting floor coal-mining method for water-bearing layer, it is characterised in that：Institute
State step（4）The step of carrying out resistivity imaging is as follows：
A. electrode, tunnel electrode and survey line are arranged in drilling, data acquisition transmission line and electrode are equipped in drilling；
B. after the completion of arrangement of measuring-line, dynamic acquisition is carried out to electrical data by data acquisition transmission line during the advance of the face；It adopts
Resistivity imaging real time data acquisition is carried out with parallel resistance rate method；
C. according to the drilling electrical data and resistivity imaging back analysis collected；
D. geologic information and resistivity measurement are combined as a result, the resistivity of analysis floor undulation rock stratum in mining active process becomes
Law differentiates the destruction situation of bottom plate nature water-resisting key strata.
4. a kind of coal seam according to claim 1 prevents water-resisting floor coal-mining method for water-bearing layer, it is characterised in that：Institute
State step（5）The seam mining of the bottom plate nature water-resisting key strata situation of different exploiting field sections is as follows：
A. the non-destructive situation of bottom plate nature water-resisting key strata of institute exploiting field section, normal back production coal seam；
B. as, there are fissure zone and karst collapse col umn situation, first implemented to note to the position in institute's exploiting field section bottom plate nature water-resisting key strata
Slurry closure after waiing upon the reparation completely of bottom plate nature water-resisting key strata, then carries out coal seam back production；
C. as mining influence causes institute exploiting field section bottom plate nature water-resisting key strata to destroy, first slip casting envelope is implemented at position to destroying
It is stifled, after aqueous coal seam water is blocked to flow down and ooze, then carry out coal seam back production.
5. a kind of coal seam according to claim 2 prevents water-resisting floor coal-mining method for water-bearing layer, it is characterised in that：Institute
Every group of high inclination-angle used between drilling and horizontal plane is stated as 30 ° ~ 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335415.4A CN108086977A (en) | 2017-12-14 | 2017-12-14 | A kind of coal seam prevents water-resisting floor coal-mining method for water-bearing layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335415.4A CN108086977A (en) | 2017-12-14 | 2017-12-14 | A kind of coal seam prevents water-resisting floor coal-mining method for water-bearing layer |
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| CN108086977A true CN108086977A (en) | 2018-05-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139011A (en) * | 2018-08-02 | 2019-01-04 | 缪协兴 | A kind of coal seam is the waterproof coal-mining method of Main aquifer |
| CN109635508A (en) * | 2019-01-14 | 2019-04-16 | 内蒙古科技大学 | A kind of earth's surface skewness subsidence factor pre-judging method based on key stratum structure |
| CN111102008A (en) * | 2019-12-14 | 2020-05-05 | 陕西煤业化工技术研究院有限责任公司 | Method for exploring damage depth of bottom plate for non-pillar mining on pressure-bearing water body |
| CN112709565A (en) * | 2021-01-27 | 2021-04-27 | 国家能源集团宁夏煤业有限责任公司双马煤矿 | Method for determining plugging depth of waste petroleum well in coal mining area |
| CN114397421A (en) * | 2021-11-29 | 2022-04-26 | 中煤科工开采研究院有限公司 | Mining coal seam floor damage depth monitoring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963148A (en) * | 2006-11-17 | 2007-05-16 | 中国矿业大学 | Water-protection coal-mining method using structural key layer as waterproof layer |
| CN104181611A (en) * | 2014-08-28 | 2014-12-03 | 山东科技大学 | Mine working face top board and bottom board mining breaking fracture development dynamic monitoring method |
| CN105427376A (en) * | 2015-10-28 | 2016-03-23 | 中国矿业大学(北京) | Three-dimensional dynamic visualization method of water inrush of coal seam roof |
| CN105652329A (en) * | 2016-02-04 | 2016-06-08 | 中国科学院地质与地球物理研究所 | Method and device for evaluating apparent water inflow of coal seam roof |
| CN106968664A (en) * | 2017-03-29 | 2017-07-21 | 淮南矿业(集团)有限责任公司 | A kind of floor undulation destruction band deep drilling water filling detection method |
-
2017
- 2017-12-14 CN CN201711335415.4A patent/CN108086977A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963148A (en) * | 2006-11-17 | 2007-05-16 | 中国矿业大学 | Water-protection coal-mining method using structural key layer as waterproof layer |
| CN104181611A (en) * | 2014-08-28 | 2014-12-03 | 山东科技大学 | Mine working face top board and bottom board mining breaking fracture development dynamic monitoring method |
| CN105427376A (en) * | 2015-10-28 | 2016-03-23 | 中国矿业大学(北京) | Three-dimensional dynamic visualization method of water inrush of coal seam roof |
| CN105652329A (en) * | 2016-02-04 | 2016-06-08 | 中国科学院地质与地球物理研究所 | Method and device for evaluating apparent water inflow of coal seam roof |
| CN106968664A (en) * | 2017-03-29 | 2017-07-21 | 淮南矿业(集团)有限责任公司 | A kind of floor undulation destruction band deep drilling water filling detection method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139011A (en) * | 2018-08-02 | 2019-01-04 | 缪协兴 | A kind of coal seam is the waterproof coal-mining method of Main aquifer |
| CN109635508A (en) * | 2019-01-14 | 2019-04-16 | 内蒙古科技大学 | A kind of earth's surface skewness subsidence factor pre-judging method based on key stratum structure |
| CN109635508B (en) * | 2019-01-14 | 2022-08-12 | 内蒙古科技大学 | Surface deviation state sinking coefficient prejudging method based on key layer structure |
| CN111102008A (en) * | 2019-12-14 | 2020-05-05 | 陕西煤业化工技术研究院有限责任公司 | Method for exploring damage depth of bottom plate for non-pillar mining on pressure-bearing water body |
| CN111102008B (en) * | 2019-12-14 | 2021-06-29 | 陕西煤业化工技术研究院有限责任公司 | Method for exploring damage depth of bottom plate for non-pillar mining on pressure-bearing water body |
| CN112709565A (en) * | 2021-01-27 | 2021-04-27 | 国家能源集团宁夏煤业有限责任公司双马煤矿 | Method for determining plugging depth of waste petroleum well in coal mining area |
| CN112709565B (en) * | 2021-01-27 | 2022-07-29 | 国家能源集团宁夏煤业有限责任公司双马煤矿 | Method for determining plugging depth of waste petroleum well in coal mining area |
| CN114397421A (en) * | 2021-11-29 | 2022-04-26 | 中煤科工开采研究院有限公司 | Mining coal seam floor damage depth monitoring method |
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