CN109670729A - A kind of top plate aquifer water well evaluation method - Google Patents
A kind of top plate aquifer water well evaluation method Download PDFInfo
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- CN109670729A CN109670729A CN201910001823.9A CN201910001823A CN109670729A CN 109670729 A CN109670729 A CN 109670729A CN 201910001823 A CN201910001823 A CN 201910001823A CN 109670729 A CN109670729 A CN 109670729A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
Abstract
The present invention relates to a kind of top plate aquifer water well evaluation methods, specific steps establish each Dominated Factors thematic map (3) using GIS including the Dominated Factors (2) that (1) chooses influence top plate watery and show that rich water sex index (6) establishes top plate watery block plan using GIS with weighted value by the data that Information Entropy determines that each data are normalized after (5) superposition normalization in the weighted value (4) of each Dominated Factors, make reasonable evaluation to mining area roof water-bearing layer according to block plan.The present invention is based on GIS powerful data processings and spatial analysis functions, in conjunction with Information Entropy theory, it is easy to operate, step clear and definite, Qualitative and Quantitative research is combined, evaluation result is more accurate, meets mining area actual conditions, reasonable evaluation can be made for top plate watery subregion, and provides a kind of new idea and method for mine water disaster prevention and treatment.
Description
Technical field
The present invention relates to roof gushing water water damage prevention and control fields, and in particular to a kind of top plate aquifer water well evaluation side
Method.
Background technique
In process of coal mining, due to working face of coal seam back production, inevitably discloses, disturbs or destroy top plate and contain
Water layer leads to the generation of water filling of mine water damage, and the grade of water damage depends on the size of water, therefore verifies water filling source and its richness
The aqueous regularity of distribution prevents and treats coal mine flood most important.
It is at present watery index method for the more comprehensive and systematic prediction technique of top plate aquifer water well rule, but this side
For method in terms of weight determination, that generally use is analytic hierarchy process (AHP) i.e. AHP, needs expert estimation in the process, acquiring way compared with
Difficulty, so that the solution procedure of weight is complex, and the subjective objective factor of AHP method considers less, the selection to index
There is more limitation that it is larger can not to be layered error when index number chooses less, and excessively difficulty in computation is then caused to increase, this
Invention provides a kind of simple top plate watery evaluation method of calculating for this problem.
Summary of the invention
In view of the above problems, simple top plate watery evaluation method is calculated the purpose of the present invention is to provide a kind of, more
Further object is to provide a kind of method of evaluation and forecast of pratical and feasible comprehensive high-efficiency for the prediction of water bursting in mine water damage.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of top plate watery based on GIS and Information Entropy
Evaluation method, specifically includes the following steps:
(1) Dominated Factors (2) for choosing influence top plate watery are established each Dominated Factors thematic map (3) using GIS and are passed through
Information Entropy determines that the weighted value (4) of each Dominated Factors each data is normalized the data after (5) superposition normalization
Show that rich water sex index (6) establishes top plate watery block plan using GIS with weighted value.
The invention has the advantages that: the present invention is based on GIS powerful data processing and spatial analysis functions, in conjunction with
Information Entropy theory, easy to operate, step clear and definite combines Qualitative and Quantitative research, and evaluation result is more accurate, meets
Mining area actual conditions can make reasonable evaluation for top plate watery subregion, and provide a kind of new think of for mine water disaster prevention and treatment
Road and method.
Detailed description of the invention
It is used to illustrate that attached drawing is intended merely to further illustrate herein and illustrates the present invention, the present invention can not be limited.
Fig. 1 is top plate aquifer water well evaluation method flow chart of the present invention.
Specific embodiment
Referring to Figure of description 1, the specific embodiment of the invention is described in detail below:
1. determining research object (i.e. selection mining area and coal seam), research area is carried out according to detailed hydrogeologic data comprehensive
Analysis is closed, the Dominated Factors for influencing the coal seam aquifer water well are chosen, as water-bearing layer thickness, core recovery, crisp modeling rock are thick
Degree ratio etc., and pass through the statistical data such as borehole data, hydrological observation wells data information, mine geology report.
2. each Dominated Factors statistical data vector quantization is established each Dominated Factors thematic map using GIS.
3. solving the weighted value of each Dominated Factors with Information Entropy, steps are as follows for calculating: 1) marking to initial data
Quasi-ization processing, in order to eliminate the influence of dimension, it is assumed that the numerical value of j-th of drilling, i-th Dominated Factors is xij, drilling points are n,
The number of Dominated Factors is m, then initial matrix is X={ xij}m×n, the average value of i-th Dominated Factors can be found outAnd standard deviation
si.Positive index is acquired according to the following formula(formula (1)) and reverse index(formula (2)).
The ideal value of hypothesis evaluation index is xi, for positive indexIt is the bigger the better, is denoted asFor reverse
For index,It is the smaller the better to be denoted asIt is Y={ y so as to define the canonical matrix of initial dataij}m×n；2) it counts
The specific gravity for calculating the data value at j-th of boring point under i-th Dominated Factors, such as formula (3).
3)EiThe unordered degree that can reflect information calculates the comentropy E of i-th index according to formula (4)i:
4) value of utility of information, D are calculated againiReflect the degree of consistency of each Numerical Contributions degree under i-th Dominated Factors,
DiSmaller consistency is better, and depending on the dispersion degree of data, calculation formula is as follows:
Di=1-Ei (5)
5) weight of Dominated Factors can be finally defined, then the weight of i-th Dominated Factors are as follows:
4. making data that there is statistical significance and comparativity, using formula (7) to brill to eliminate the influence of different data dimension
Hole statistical data is normalized.
5. aquifer water well evaluation model is established, to normalization data and each master control according to Multi-source Information Fusion principle
Factor weight value carries out complex superposition, obtains roof aquifer water well index, sees formula (8):
6. the watery index value that step 5 obtains is imported in GIS and establishes roof watery block plan, in conjunction with mining area
Practical hydrogeologic condition researchs and analyses block plan, and hydrological observation wells actual measurement specific capacity numerical value is added to subregion
In figure, the accuracy of evaluation result is verified.
The scope of the present invention is not limited to above embodiment, and those skilled in the relevant arts should be understood that without prejudice to originally
Under the premise of inventive principle, various improvement can be carried out, all belong to the scope of protection of the present invention within.
Claims (4)
1. a kind of top plate aquifer water well evaluation method, which is characterized in that this method comprises:
Step (1) chooses the Dominated Factors for influencing top plate watery；
Step (2) establishes each Dominated Factors thematic map using GIS；
Step (3) determines the weighted value of each Dominated Factors by Information Entropy；
Each data are normalized in step (4)；
Data and weighted value after step (5) superposition normalization obtain rich water sex index；
Step (6) establishes top plate watery block plan using GIS.
2. top plate aquifer water well evaluation method as described in claim 1, which is characterized in that in step (1), should be taken into account
The difference of different mine geology conditions chooses reasonable factor from the geologic(al) factor for influencing mining area coal seam aquifer water well
As Dominated Factors.
3. top plate aquifer water well evaluation method as described in claim 1, which is characterized in that in step (2), collect mining area
Data vector is established each Dominated Factors thematic map using GIS by geologic information statistical data.
4. top plate aquifer water well evaluation method as described in claim 1, which is characterized in that in step (3), determine weight
Method selection objective assignment method --- Information Entropy, need to be standardized data, that is, find out the positive index of data and inverse
To index, the standardized value of data is defined.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112132454A (en) * | 2020-09-22 | 2020-12-25 | 中国矿业大学 | Comprehensive evaluation method for water-rich property of coal seam roof or floor aquifer |
| CN112302718A (en) * | 2020-10-29 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | Method for protecting water resource of water-bearing stratum of coal seam roof |
| CN113190793A (en) * | 2020-09-17 | 2021-07-30 | 合肥工业大学 | Dynamic determination method for water-rich property of loose bearing water-containing layer region |
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| CN103362509A (en) * | 2013-07-15 | 2013-10-23 | 中国矿业大学 | Coal mine unconsolidated aquifer mining upper limit evaluation and mining risk evaluation method |
| CN105005700A (en) * | 2015-07-21 | 2015-10-28 | 河海大学 | Sedimentation criticality compartmenting method based on entropy, inner weight and outer weight |
| CN106528707A (en) * | 2016-10-26 | 2017-03-22 | 中国矿业大学 | Coal seam roof sandstone aquifer water-abundance evaluation method |
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| CN103362509A (en) * | 2013-07-15 | 2013-10-23 | 中国矿业大学 | Coal mine unconsolidated aquifer mining upper limit evaluation and mining risk evaluation method |
| CN105005700A (en) * | 2015-07-21 | 2015-10-28 | 河海大学 | Sedimentation criticality compartmenting method based on entropy, inner weight and outer weight |
| CN106528707A (en) * | 2016-10-26 | 2017-03-22 | 中国矿业大学 | Coal seam roof sandstone aquifer water-abundance evaluation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113190793A (en) * | 2020-09-17 | 2021-07-30 | 合肥工业大学 | Dynamic determination method for water-rich property of loose bearing water-containing layer region |
| CN112132454A (en) * | 2020-09-22 | 2020-12-25 | 中国矿业大学 | Comprehensive evaluation method for water-rich property of coal seam roof or floor aquifer |
| CN112132454B (en) * | 2020-09-22 | 2023-09-01 | 中国矿业大学 | Comprehensive evaluation method for water-rich property of water-bearing layer of roof or floor of coal seam |
| CN112302718A (en) * | 2020-10-29 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | Method for protecting water resource of water-bearing stratum of coal seam roof |
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