CN108549994A - A kind of evaluation method of coal mine empty water water damage always - Google Patents
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- 239000003245 coal Substances 0.000 title claims abstract description 122
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 title claims abstract description 72
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- 238000011156 evaluation Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 19
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 238000003325 tomography Methods 0.000 claims description 49
- 230000008595 infiltration Effects 0.000 claims description 22
- 238000001764 infiltration Methods 0.000 claims description 22
- 238000005273 aeration Methods 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 4
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Abstract
The invention discloses a kind of evaluation methods of coal mine empty water water damage always, include the following steps：1) the engineering geology information and hydrogeological information of coal mine are collected；2) expert point rating method is used to determine that coal mine the master control evaluation index of empty water water damage and is given a mark always；3) it uses GIS-Geographic Information System to handle the master control evaluation index of coal mine empty water water damage always, establishes coal mine spatial database and attribute database；4) analytic hierarchy process (AHP) is used to calculate the weight of each evaluation index；5) use GIS-Geographic Information System that each evaluation criterion weight result of calculation generation image is shown and stored；6) to coal mine, empty water water damage danger is predicted and is evaluated always, can preferably solve the problems, such as complicated, nonlinear, fills up the blank of coal mine empty water water damage evaluation method always, and the generation of coal mine empty water water damage always is effectively predicted, reduces the generation of safety accident.
Description
Technical field
The present invention relates to the evaluation sides of coal mine Evaluation of Harmfulness technical field more particularly to a kind of coal mine empty water water damage always
Method.
Background technology
Coal mine the main reason for empty water is mine water disaster accident always, in general, the hydraulic pressure of old sky water is very big, has very strong
Destruction, and the water quality acidity of old empty water is larger, and water taste is astringent, has stronger corrosion work to the metal equipment of underground coal mine
With, it also tends to gush out with toxic gas, seriously threatens coal mine production safety, once generation water leak accident, will not only increase and adopt
Mine cost delays mining progress, can also jeopardize the life security of miner, cause serious personnel casualty accidents, so, how
This time bomb in coal production is effectively rooted out, the current most important thing for safeguarding Safety Work in Colliery is become.
Currently without specially to the evaluation method of coal mine empty water water damage always, therefore propose that empty water water damage is commented always for a kind of coal mine
The overall condition of coal mine can be analyzed and evaluated in valence method, and the generation of coal mine empty water water damage always is effectively predicted, reduces safety
The generation of accident.
Invention content
Present invention solves the technical problem that：The evaluation method that a kind of coal mine empty water water damage always is provided, to solve not having at present
There is special coal mine empty water water damage evaluation method always, the problem of mine safety accidents take place frequently.
Technical scheme of the present invention：
A kind of evaluation method of coal mine empty water water damage always, includes the following steps：
Step 1：Collect the engineering geology information and hydrogeological information of coal mine；
Step 2：Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method；
Step 3：The master control evaluation index of coal mine empty water water damage always is handled using GIS-Geographic Information System, establishes coal mine
Spatial database and attribute database；
Step 4：The weight of each evaluation index is calculated using analytic hierarchy process (AHP)；
Step 5：Each evaluation criterion weight result of calculation generation image is shown and stored using GIS-Geographic Information System；
Step 6：To coal mine, empty water water damage danger is predicted and is evaluated always.
The engineering geology information and hydrogeological information of collection coal mine described in step 1, the hydrogeological information packet
Include spring point, river characteristic, primary aqueous channel type and main water proof channel type.
The engineering geology information and hydrogeological information of collection coal mine described in step 1, the engineering geology packet
Topography and geomorphology, formation lithology, geological structure situation and goaf are included, old kiln is discarded, close bad drilling, major faults, falls
The quantity and distribution situation of water crack seamed belt.
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method described in step 2, it is described
Master control evaluation index include close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and specific capacity.
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method described in step 2, score value
Range is between 1-10.
(1) close bad geotechnical boring：Considered according to the speed of the transmissibility of close bad geotechnical boring and mode,
It scores close bad geotechnical boring coverage, when any two or three close bad geotechnical borings in research area
Range it is superimposed when, then corresponding score value is added, such as：Close bad geotechnical boring scores in the range of 0~80m
It is 8, scoring is 5 in the range of 80~130m, if two kinds of close bad geotechnical boring ranges have overlapping, is scored superimposed
It is 13, another is 1 in more than 130m.
(2) old empty water：Considered according to the concealment and gushing water mode of coal mine empty water always, on coal mine, empty water influences model always
It encloses and scores, when the range for studying any two in area or three coal mines empty water always is superimposed, then will score accordingly
Value is added, such as：Empty water score coal mine in the range of 0~80m always is 8, and scoring is 5 in the range of 80~130m, if
Empty water range has overlapping to two kinds of coal mines always, then scoring, which is stacked, adds as 13, another is 2 in more than 500m.
(3) water flowing fractured zone：After mine coal seam is mined out, a certain range of rock stratum occurs disconnected above coal mine gob
It splits, and the perforation of its overlying rock can be made to become the main conduit pipe of coal mine empty water water damage always, be the key that coal mine flood, according to
《Mine shaft geology handbook》Middle hard rock water flowing fractured zone formula calculates as follows：
In formula, M adopts thickness, and HL is water flowing fractured zone maximum height, m；∑ M is to add up to adopt thickness, m；± 5.6 be calculating error
, according to the maximum height of water flowing fractured zone calculated compared with the elevation in earth's surface elevation or top last layer goaf, draw
Separate high crack zone, middle crack zone, low crack zone.
(4) annual rainfall for many years：Atmospheric precipitation is the main Source Of Supply of coal mine empty water always.Precipitation Vertical movement is to coal mine
Old dead zone, and spread wherein by horizontal runoff.Rainfall is inhaled during entering to blend migration by aeration zone and water-bearing layer
It is attached.When precipitation is sufficiently large the increment of underground water can increase, to increase the preservation amount of coal mine empty water always.Therefore, greatly
Gas rainfall is bigger, and atmospheric precipitation infiltration capacity is bigger, and the risk value of coal mine empty water always is bigger.
(5) infiltrated water：Infiltrated water is the principal element that rainfall infiltrates the recharge of ground water, influences precipitation recharge coefficient
There are many factor, mainly there is aeration zone type, underground water buried depth, precipitation size and intensity.It is the main of coal mine empty water supply always
One of parameter.In general, river valley area, depression, cheuch area are conducive to a large amount of ponding, rainfall infiltration amount is big, and coal mine is always empty
Water increment is stronger, and empty water water damage is more dangerous always for coal mine.
(6) terrain slope：What the size of terrain slope affected precipitation infiltrates situation.In the case of soft, flow is slow
Slowly, precipitation and earth's surface contact area are abundant enough, are trapped in earth's surface for a long time, and precipitation can be infiltrated largely, on the contrary, terrain slope
When big, precipitation will be flowed away in a manner of rainwash, and rainfall infiltration amount is few, and the danger of coal mine empty water always is smaller.It is that coal mine is old
One of the parameter of Source Of Supply of empty water.
(7) aeration zone type：Aeration zone type decides rainfall from earth's surface to the supply for entering coal mine empty water always.Packet gas
Band medium, which also decides, infiltrates path and approach, and the particle of ordinary circumstance, aeration zone medium is bigger, and clay content is lower, coal mine
Old sky water increment is bigger, and on coal mine, empty water water damage influence is bigger always.It is one of the parameter of Source Of Supply of coal mine empty water always, packet
Gas belt type depends primarily on aeration zone lithology, and subregion is carried out according to the lithology combination characteristic in mining area.
(8) average infiltration coefficient：Infiltration coefficient is the constant for indicating rock stratum water penetration, can reflect Groundwater Flow
It is difficult to degree.Property of the infiltration coefficient depending on rock, the crack of rock interior, the size of karst and connecting degree,
The flow rate for influencing underground water lower to a certain degree, to affect the time that underground water is contacted with anaerobic condition.Infiltration system
Number is bigger, and the water penetration ability in water-bearing layer is stronger, and the speed that earth's surface fluid enters water-bearing layer is faster, coal mine always empty water supply just
Stronger, empty water water damage danger is bigger always for coal mine.
(9) old kiln coal mine：Main source one of of the old kiln coal mine as coal mine flood, according to old kiln mine water inrush speed and
Mode considers, and scores old kiln coal mine coverage, when the model of any two or three old kiln coal mines in mining area
When enclosing superimposed, then corresponding score value is added, such as：It is 8 that old kiln coal mine scores in the range of 0~100m, 100~
Scoring is 5 in the range of 400m, if old kiln coal mine range has overlapping, scoring, which is stacked, adds as 13, another is more than 400m
It is inside 2.
(10) tomography intersection point is distributed with endpoint：Tomography intersection point and endpoint refer to the friendship of the starting point, terminal and fault line of fault line
Point.When considering influence of the construction to old empty water water damage, at tomography crosspoint and endpoint, rock mass is more broken, cranny development
Strongly, the possibility of water guide is larger.When being influenced by mining production, it is easier the easy hair as coal mine roof plate gushing water
Area.
Mining area is carried out Rectangular Partition by the coverage for considering fault influence zone, and subdivision is the grid of 5OOm × 5OOm, system
The intersection point of the tomography in each grid and the number of endpoint are counted, rectangular centre point coordinates represents the rectangular coordinates, and final draw is broken
Layer intersection point and endpoint value isopleth thematic map.
(11) Fault density：Fault density, usually with fault trace on tomography item number on unit area or unit area
Length indicates.Both extent of the destruction of the tomography to coal seam is reflected from certain one side, the latter is because measuring cumbersome and less adopt
With.Tomography is the important conduit pipe of mine roof gushing water.
Mining area is carried out Rectangular Partition by the coverage for considering Fault density, and subdivision is the grid of 5OOm × 5OOm, statistics
The tomography number in each rectangular mesh is counted, rectangular centre point coordinates represents the rectangular coordinates, final to draw Fault density etc.
It is worth line thematic map.
(12) tomography scaled index：Tomography scaled index, in unit area all fault throws and strike length product it
With it is closely related with the transmissibility of tomography.Calculation formula：
S is rectangular area unit m2, h is fault throw unit m, and l is fault strike length unit m, and F is that tomography scale refers to
Number.
Unit grid is established according to the size of 500m × 500m, and the drop of each tomography and length is moved towards in statistic unit grid
Then drop and the product of strike length divided by-thousand are calculated its tomography scaled index by degree, then extracting must point coordinates in grid
And then assignment, it is final to draw tomography scaled index isopleth thematic map.
(13) specific capacity：Coal mine specific capacity is one of the important evidence that hydrogeological type of mine divides, together
When be also coal mine roof plate gushing water Risk Assessments important indicator.
Each evaluation criterion weight result of calculation generation image is shown and is stored up by the use GIS-Geographic Information System described in step 5
It deposits, it is further comprising the steps of：
Step 5.1：By close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the three-dimensional coordinate information of specific capacity index input GIS-Geographic Information System；
Step 5.2：Establish respectively close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrate and be
Number, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography
The thematic map of scaled index and specific capacity index；
Step 5.3：By close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the thematic map of specific capacity index are overlapped；
Step 5.4：GIS-Geographic Information System by close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall,
Infiltrated water, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, tomography are close
The weight calculation result of degree, tomography scaled index and specific capacity generates image and shows.
Described in step 6 to coal mine, empty water water damage danger is evaluated always, it is further comprising the steps of：
Step 6.1：To coal mine, empty water water damage danger carries out subregion always, is divided into low danger area, relatively low danger area, medium
Danger area, higher risk area and the region of high-risk danger zone five.
Step 6.2：Establish coal mine empty water water damage danger forecasting result map always.
Beneficial effects of the present invention：The evaluation method that a kind of coal mine empty water water damage always is provided, based on GIS-Geographic Information System with
Analytic hierarchy process (AHP) is to coal mine empty water water damage Risk Assessments always, since empty water water damage evaluation area is one complicated, non-thread to coal mine always
Sexual system, the influence that each evaluation points generates it is different, and analytic hierarchy process (AHP) can be asked by expert point rating method
Take evaluation criterion weight, GIS-Geographic Information System that can directly show the influence situation of each factor of evaluation in the form of graph
Come, and comprehensive consideration that all factors of evaluation can be stacked up, can preferably solve the problems, such as complicated, nonlinear, fills out
The blank for mending coal mine empty water water damage evaluation method always is effectively predicted the generation of coal mine empty water water damage always, reduces the hair of safety accident
It is raw.
Description of the drawings
Fig. 1 is evaluation method flow chart of the present invention；
Specific implementation mode
A kind of evaluation method of coal mine empty water water damage always, includes the following steps：
Step 1：Collect the engineering geology information and hydrogeological information of coal mine；
Step 2：Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method；
Step 3：The master control evaluation index of coal mine empty water water damage always is handled using GIS-Geographic Information System, establishes coal mine
Spatial database and attribute database；
Step 4：The weight of each evaluation index is calculated using analytic hierarchy process (AHP)；
Step 5：Each evaluation criterion weight result of calculation generation image is shown and stored using GIS-Geographic Information System；
Step 6：To coal mine, empty water water damage danger is predicted and is evaluated always.
The engineering geology information and hydrogeological information of collection coal mine described in step 1, the hydrogeological information packet
Include spring point, river characteristic, primary aqueous channel type and main water proof channel type.
The engineering geology information and hydrogeological information of collection coal mine described in step 1, the engineering geology packet
Topography and geomorphology, formation lithology, geological structure situation and goaf are included, old kiln is discarded, close bad drilling, major faults, falls
The quantity and distribution situation of water crack seamed belt.
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method described in step 2, it is described
Master control evaluation index include close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and specific capacity.
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method described in step 2, score value
Range is between 1-10.
Each evaluation criterion weight result of calculation generation image is shown and is stored up by the use GIS-Geographic Information System described in step 5
It deposits, it is further comprising the steps of：
Step 5.1：By close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the three-dimensional coordinate information of specific capacity index input GIS-Geographic Information System；
Step 5.2：Establish respectively close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrate and be
Number, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography
The thematic map of scaled index and specific capacity index；
Step 5.3：By close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the thematic map of specific capacity index are overlapped；
Step 5.4：GIS-Geographic Information System by close bad geotechnical boring, old empty water water flowing fractured zone, for many years annual rainfall,
Infiltrated water, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, tomography are close
The weight calculation result of degree, tomography scaled index and specific capacity generates image and shows.
Described in step 6 to coal mine, empty water water damage danger is evaluated always, it is further comprising the steps of：
Step 6.1：To coal mine, empty water water damage danger carries out subregion always, is divided into low danger area, relatively low danger area, medium
Danger area, higher risk area and the region of high-risk danger zone five.
Step 6.2：Establish coal mine empty water water damage danger forecasting result map always.
Claims (7)
1. a kind of evaluation method of coal mine empty water water damage always, it includes the following steps：
Step 1：Collect the engineering geology information and hydrogeological information of coal mine；
Step 2：Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method；
Step 3：The master control evaluation index of coal mine empty water water damage always is handled using GIS-Geographic Information System, establishes coal mine space
Database and attribute database；
Step 4：The weight of each evaluation index is calculated using analytic hierarchy process (AHP)；
Step 5：Each evaluation criterion weight result of calculation generation image is shown and stored using GIS-Geographic Information System；
Step 6：To coal mine, empty water water damage danger is predicted and is evaluated always.
2. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 1
Collect the engineering geology information and hydrogeological information of coal mine, the hydrogeological information includes spring point, river characteristic, aqueous
Channel type and water proof channel type.
3. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 1
Collect coal mine engineering geology information and hydrogeological information, the engineering geology information include topography and geomorphology, formation lithology,
Old kiln, close bad drilling, tomography, the quantity of pouring slit band and distribution feelings are discarded in geological structure situation and goaf
Condition.
4. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 2
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method, the master control evaluation index includes envelope
Close unfavorable geology drilling, old empty water water flowing fractured zone, 1 year or more annual rainfall, infiltrated water, terrain slope, aeration zone class
Type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scaled index and unit water burst
Amount.
5. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 2
Determine that coal mine the master control evaluation index of empty water water damage and is given a mark always using expert point rating method, score range is between 1-10.
6. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 5
Each evaluation criterion weight result of calculation generation image is shown and stored using GIS-Geographic Information System, it is further comprising the steps of：
Step 5.1：By close bad geotechnical boring, old empty water water flowing fractured zone, 1 year or more annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the three-dimensional coordinate information of specific capacity index input GIS-Geographic Information System；
Step 5.2：Close bad geotechnical boring is established respectively, old empty water water flowing fractured zone, 1 year or more annual rainfall, is infiltrated and is
Number, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography
The thematic map of scaled index and specific capacity index；
Step 5.3：By close bad geotechnical boring, old empty water water flowing fractured zone, 1 year or more annual rainfall, infiltrated water,
The shape gradient, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, Fault density, tomography scale
Index and the thematic map of specific capacity index are overlapped；
Step 5.4：GIS-Geographic Information System by close bad geotechnical boring, old empty water water flowing fractured zone, 1 year or more annual rainfall,
Infiltrated water, terrain slope, aeration zone type, average infiltration coefficient, old kiln coal mine, tomography intersection point and endpoint distribution, tomography are close
The weight calculation result of degree, tomography scaled index and specific capacity generates image and shows.
7. a kind of evaluation method of coal mine according to claim 1 empty water water damage always, it is characterised in that：Described in step 6
To coal mine, empty water water damage danger is evaluated always, is included the following steps：
Step 6.1：To coal mine, empty water water damage danger carries out subregion always, is divided into low danger area, relatively low danger area, moderate risk
Area, higher risk area and the region of high-risk danger zone five.
Step 6.2：Establish coal mine empty water water damage danger forecasting result map always.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110008302A (en) * | 2019-04-12 | 2019-07-12 | 长江岩土工程总公司（武汉） | More impact factor precipitation recharge coefficient quantitative evaluation methods |
| CN111927555A (en) * | 2020-08-14 | 2020-11-13 | 南京大学 | Dynamic prediction method for water inflow of coal mine working face under mining disturbance condition |
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Application publication date: 20180918 |