CN107165626A - A kind of coal-face floods prevention method with cranny development country rock top plate - Google Patents
A kind of coal-face floods prevention method with cranny development country rock top plate Download PDFInfo
- Publication number
- CN107165626A CN107165626A CN201710520654.0A CN201710520654A CN107165626A CN 107165626 A CN107165626 A CN 107165626A CN 201710520654 A CN201710520654 A CN 201710520654A CN 107165626 A CN107165626 A CN 107165626A
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- rock
- top plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
Abstract
The invention discloses a kind of coal-face floods prevention method with cranny development country rock top plate, including adopt preceding detection, bore detecting checking, security evaluation, floods threat assessment, dynamic and monitor, adopt the steps such as rear water flowing fractured zone development observation and site operation.This has the coal-face floods prevention method of cranny development country rock top plate due to carrying out overall merit to working face hydrogeologic condition, Spray water way according to physical prospecting, drilling situation, by a series of detections such as rock mechanics experiment, physical prospecting, numerical simulation, height of water flowing fractured zone detections and overall merit is carried out to detection data, therefore, it is possible to effectively prevent the floods of coal-face in same exploiting field, the coal-face with cranny development country rock top plate is particularly suitable for use in.
Description
Technical field
It is specifically a kind of that there is crack hair suitable for underground coal mine the present invention relates to a kind of roof fracture water detection method
The coal-face floods prevention method of country rock top plate is educated, belongs to Safety of Coal Mine Production technical field.
Background technology
Crevice water is underground water of the preservation in rock cranny, by the origin cause of formation in water-bearing media crack, can be divided into weathering fissures
Water, diagenesis crevice water and structural fissured water.By mode of occurence, it can be diving or artesian water, be compared with pore water, crack moisture
Cloth is uneven, and hydraulic connection is bad, and the permeability of medium has inhomogeneity and anisotropy.
It is frequently encountered in mine, tunnel, underground engineering in cranny development country rock, weak surrounding rock and infiltration country rock, country rock
Containing obvious weak intercalated layer, siltized intercalation, all kinds of structural planes, and all kinds of composite constructions, wherein, soft surrounding rock containing mudstone foundation
With strong dilatancy and it is efflorescence properties the characteristics of, especially for coal mining, as seam mining is constantly deepened, big thickness coal seam
Exploitation is mined using the modernization that three machines are supporting or four machines are supporting equip at present, is adopted depth, is adopted thickness, balkstone lithology, work
Face inclination angle, push to adopt the factors such as speed, working face span and coal winning technology directly affects the water guide of cranny development country rock top plate and split
Gap band development mechanism and height.
Mine is in construction and production process, and the surface water and underground water are gushed by the various passages such as crack, tomography, subsidence area
Enter mine, when swallet exceedes proper drainage ability, result in mine water disaster, it is also commonly referred to as permeable；Caving zone, which refers to, to be adopted
Destruction is directly caving caused by after ore deposit working face caving, the band is not only permeable but also saturating sand；Fissure zone refers to big on caving zone
What amount occurred cut layer, absciss layer and fracture gap or fracture extension zone, the band will not sand but energy is permeable thoroughly；Caving zone and fissure zone are collectively referred to as
Water flowing fractured zone, water flowing fractured zone development height, mining exploitation and roof rock migration etc. influence factor to preventing and treating crack hair
Educate wall-rock crack water most important.
Current cranny development wall-rock crack floods administer cranny development country rock at present mostly with rear goaf delaying water bursting
The method of crevice water is also normally only to adopt preceding physical prospecting, drill unrestrained water, but to roof water migration, coal-getter in exploitation process
Making face water flowing fractured zone development mechanism does not have pertinent literature to discuss record.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of coal-face floods prevention side with cranny development country rock top plate
Method, overall merit is carried out according to physical prospecting, drilling situation to working face hydrogeologic condition, Spray water way etc., can be effectively pre-
The generation of anti-floods, is particularly suitable for use in the coal-face with cranny development country rock top plate.
To achieve the above object, there is the coal-face floods prevention method of cranny development country rock top plate to be according to thing for this
Visit, drilling situation carries out overall merit to working face hydrogeologic condition, Spray water way, comprise the following steps that：
A. preceding detection is adopted：After coal-face is formed, using underground VHD 3 D resistivity method on working face
Cover, tunnel lateral wall top country rock water-bearing layer water enrichment area is detected, and according to the resistivity detected, demarcates mining face top
Roof rock water-bearing layer rich water exceptions area above plate, rib；
B. bore detecting is verified：Hydrology drilling verification is carried out to Geophysical Anomalies area, it is synchronous to obtain profit after top plate core rock sample
Wall-rock crack water-bearing layer hydrous fluids are carried out with three axle rock mechanics experiment machines unrestrained；
C. security evaluation：Rock mechanics experiment is carried out to top plate core rock sample, carried out according to the rock mechanics parameters of acquirement
Stope stope roof and floor numerical simulation, designs the detection of top plate height of water flowing fractured zone using numerical simulation result and drills,
Observe the original fractured situation of stope top plate；
D. floods threat assessment：According to physical prospecting, results of drilling, wall-rock crack is evaluated using conventional water damage threat assessment method
Water-bearing layer is evaluated by working face mining danger；
E. dynamic monitoring：Working face is often pushed to adopt after setpoint distance using VHD 3 D resistivity method to coal work
Side, rear goaf top plate country rock watery are detected in front, and monitoring roof rock hydrous fluids change with pressure from surrounding rock is adopted
And the migration occurred, prevent the delayed water burst in goaf；
F. rear water flowing fractured zone development observation and site operation are adopted：Stope is pushed to adopt to stopping adopting after line, is stopping adopting line
Outside utilizes numerical simulation result in step c to design water flowing fractured zone development bore detecting again；Moved and managed according to roof rock
By above goaf rock stratum being divided into caving zone, fissure zone, warp damage, according to adopting upper the three of country rock motion theory
Band is theoretical, and design bore direction points to above goaf, and inclination angle is determined according to back production country rock motion value simulated test, and is utilized
Double-end sealing leak detection carries out site operation.
Compared with prior art, this has the coal-face floods prevention method of cranny development country rock top plate due to basis
Physical prospecting, drilling situation carry out overall merit to working face hydrogeologic condition, Spray water way, pass through rock mechanics experiment, thing
A series of detections such as spy, numerical simulation, height of water flowing fractured zone detection simultaneously carry out overall merit to detection data, therefore, it is possible to have
Imitate and the floods of coal-face in same exploiting field are prevented, be particularly suitable for use in the coal-getter with cranny development country rock top plate
Make face.
Embodiment
There is the coal-face floods prevention method of cranny development country rock top plate to be to work according to physical prospecting, drilling situation for this
Make face hydrogeologic condition, Spray water way and carry out overall merit, comprise the following steps that：
A. preceding detection is adopted：After coal-face is formed, using underground VHD 3 D resistivity method on working face
Cover, tunnel lateral wall top country rock water-bearing layer water enrichment area is detected, and according to the resistivity detected, demarcates mining face top
Roof rock water-bearing layer rich water exceptions area above plate, rib；
B. bore detecting is verified：Hydrology drilling verification is carried out to Geophysical Anomalies area, it is synchronous to obtain profit after top plate core rock sample
Wall-rock crack water-bearing layer hydrous fluids are carried out with three axle rock mechanics experiment machines it is unrestrained, when water-bearing layer water yield be more than 3m3During/h
By water drainage；
C. security evaluation：Rock mechanics experiment is carried out to top plate core rock sample, carried out according to the rock mechanics parameters of acquirement
Stope stope roof and floor numerical simulation, designs the detection of top plate height of water flowing fractured zone using numerical simulation result and drills,
Observe the original fractured situation of stope top plate；
D. floods threat assessment：According to physical prospecting, results of drilling, wall-rock crack is evaluated using conventional water damage threat assessment method
Water-bearing layer is evaluated by working face mining danger；
E. dynamic monitoring：Working face often push to adopt after 200m using VHD 3 D resistivity method to coal work in face of
Side, rear goaf top plate country rock watery are detected, and monitoring roof rock hydrous fluids are sent out with pressure from surrounding rock change is adopted
Raw migration, prevents the delayed water burst in goaf；
F. rear water flowing fractured zone development observation and site operation are adopted：Stope is pushed to adopt to stopping adopting after line, is stopping adopting line
Outside utilizes numerical simulation result in step c to design water flowing fractured zone development bore detecting again；Moved and managed according to roof rock
By above goaf rock stratum being divided into caving zone, fissure zone, warp damage, according to adopting upper the three of country rock motion theory
Band is theoretical, and design bore direction points to above goaf, and inclination angle is determined according to back production country rock motion value simulated test, and is utilized
Double-end sealing leak detection carries out site operation.
This has the coal-face floods prevention method of cranny development country rock top plate due to according to physical prospecting, drilling situation pair
Working face hydrogeologic condition, Spray water way carry out overall merit, pass through rock mechanics experiment, physical prospecting, numerical simulation, water guide
A series of detections such as fissure zone height detecting simultaneously carry out overall merit to detection data, therefore, it is possible to effectively to being adopted in same exploiting field
The floods of coal working face are prevented, and are particularly suitable for use in the coal-face with cranny development country rock top plate.
Claims (1)
1. a kind of coal-face floods prevention method with cranny development country rock top plate, it is characterised in that according to physical prospecting, bore
Spy situation carries out overall merit to working face hydrogeologic condition, Spray water way, comprises the following steps that：
A. preceding detection is adopted：After coal-face is formed, using underground VHD 3 D resistivity method to working face overlying, lane
Country rock water-bearing layer water enrichment area is detected above road lateral wall, according to the resistivity detected, demarcates mining face top plate, coal
Roof rock water-bearing layer rich water exceptions area above wall；
B. bore detecting is verified：Hydrology drilling verification is carried out to Geophysical Anomalies area, synchronous obtain utilizes three after top plate core rock sample
Axle rock mechanics experiment machine carries out unrestrained to wall-rock crack water-bearing layer hydrous fluids；
C. security evaluation：Rock mechanics experiment is carried out to top plate core rock sample, back production is carried out according to the rock mechanics parameters of acquirement
Working face stope roof and floor numerical simulation, designs the detection of top plate height of water flowing fractured zone using numerical simulation result and drills, observation
The original fractured situation of stope top plate；
D. floods threat assessment：According to physical prospecting, results of drilling, wall-rock crack is evaluated using conventional water damage threat assessment method aqueous
Layer is evaluated working face mining danger；
E. dynamic monitoring：Working face often push to adopt after setpoint distance using VHD 3 D resistivity method to coal work in face of
Side, rear goaf top plate country rock watery are detected, and monitoring roof rock hydrous fluids are sent out with pressure from surrounding rock change is adopted
Raw migration, prevents the delayed water burst in goaf；
F. rear water flowing fractured zone development observation and site operation are adopted：Stope is pushed to adopt to stopping adopting after line, is stopping adopting on the outside of line
Water flowing fractured zone development bore detecting is designed again using numerical simulation result in step c；, will according to roof rock motion theory
Above goaf rock stratum is divided into caving zone, fissure zone, warp damage, is managed according to upper three band for adopting country rock motion theory
By design bore direction points to above goaf, and inclination angle is determined according to back production country rock motion value simulated test, and utilizes both-end
Block the carry out site operation that leaks hunting.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622164A (en) * | 2017-09-25 | 2018-01-23 | 中国煤炭地质总局勘查研究总院 | A kind of method for porecasting water upwelling amount of mine well and device |
| CN110221357A (en) * | 2019-05-20 | 2019-09-10 | 深圳市勘察研究院有限公司 | A kind of long-span and shallowly buried limestone goaf integrated survey method |
| CN110501473A (en) * | 2019-09-19 | 2019-11-26 | 六盘水师范学院 | A kind of goaf leting speeper experimental provision and its working method |
| CN110675273A (en) * | 2019-10-15 | 2020-01-10 | 神华神东煤炭集团有限责任公司 | Method for judging water and sand bursting disasters of coal face |
| CN111140229A (en) * | 2020-01-23 | 2020-05-12 | 中国矿业大学 | Simulation system for roof destruction process after water-soluble mining of layered salt rock |
| CN111764837A (en) * | 2020-07-06 | 2020-10-13 | 中国矿业大学 | Double-end water plugging detection rod, overburden fracture drilling and measuring integrated device and drilling and measuring method |
| CN111997688A (en) * | 2020-07-15 | 2020-11-27 | 陕西麟北煤业开发有限责任公司 | Method for preventing and controlling water damage of coal seam roof separation layer |
| CN113404484A (en) * | 2021-07-27 | 2021-09-17 | 中国矿业大学 | Ground double-bare-hole combined monitoring method for internal movement of water-rich stratum mining rock stratum |
| 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 |
| CN114415260A (en) * | 2022-01-19 | 2022-04-29 | 中国矿业大学 | Detection and evaluation method for water inrush accident of reservoir above goaf |
| CN110501473B (en) * | 2019-09-19 | 2024-04-30 | 六盘水师范学院 | Goaf water exploring and draining experiment device and working method thereof |
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| 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 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622164A (en) * | 2017-09-25 | 2018-01-23 | 中国煤炭地质总局勘查研究总院 | A kind of method for porecasting water upwelling amount of mine well and device |
| CN110221357A (en) * | 2019-05-20 | 2019-09-10 | 深圳市勘察研究院有限公司 | A kind of long-span and shallowly buried limestone goaf integrated survey method |
| CN110221357B (en) * | 2019-05-20 | 2020-10-09 | 深圳市勘察研究院有限公司 | Large-span shallow-buried limestone goaf comprehensive exploration method |
| CN110501473A (en) * | 2019-09-19 | 2019-11-26 | 六盘水师范学院 | A kind of goaf leting speeper experimental provision and its working method |
| CN110501473B (en) * | 2019-09-19 | 2024-04-30 | 六盘水师范学院 | Goaf water exploring and draining experiment device and working method thereof |
| CN110675273A (en) * | 2019-10-15 | 2020-01-10 | 神华神东煤炭集团有限责任公司 | Method for judging water and sand bursting disasters of coal face |
| CN110675273B (en) * | 2019-10-15 | 2022-08-12 | 神华神东煤炭集团有限责任公司 | Method for judging water and sand bursting disasters of coal face |
| CN111140229B (en) * | 2020-01-23 | 2021-09-24 | 中国矿业大学 | Simulation system for roof destruction process after water-soluble mining of layered salt rock |
| CN111140229A (en) * | 2020-01-23 | 2020-05-12 | 中国矿业大学 | Simulation system for roof destruction process after water-soluble mining of layered salt rock |
| CN111764837A (en) * | 2020-07-06 | 2020-10-13 | 中国矿业大学 | Double-end water plugging detection rod, overburden fracture drilling and measuring integrated device and drilling and measuring method |
| CN111997688A (en) * | 2020-07-15 | 2020-11-27 | 陕西麟北煤业开发有限责任公司 | Method for preventing and controlling water damage of coal seam roof separation layer |
| CN113404484A (en) * | 2021-07-27 | 2021-09-17 | 中国矿业大学 | Ground double-bare-hole combined monitoring method for internal movement of water-rich stratum mining rock stratum |
| 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 |
| CN114415260A (en) * | 2022-01-19 | 2022-04-29 | 中国矿业大学 | Detection and evaluation method for water inrush accident of reservoir above goaf |
| CN114415260B (en) * | 2022-01-19 | 2023-02-21 | 中国矿业大学 | Detection and evaluation method for water inrush accident of reservoir above goaf |
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Application publication date: 20170915 |