Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method

Bo Chen; Junchao Cui; Qi Wang; Bo Zhang; Xinyi Wang

doi:doi:10.11648/j.earth.20221101.12

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Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method

Bo Chen, Junchao Cui, Qi Wang, Bo Zhang, Xinyi Wang

Published in Earth Sciences (Volume 11, Issue 1)

Received: 19 January 2022 Accepted: 4 February 2022 Published: 16 February 2022

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Abstract

The composite strata of coal floor is an important barrier to block the lifting and bursting of thick limestone groundwater into the mining space. Taking J3 and J4 mining areas of Handicapping Coalfield as the object, this paper selected the thickness ratio of plastic brittle rock core recovery rate, composite comprehensive strength, Equivalent water barrier coefficient, Effective water-resistant layer thickness and fault complexity as the main control factors, and determined the comprehensive weight of index factors based on the entropy weight theory. Using the Archaist vulnerability index grading evaluation model, the water-isolation ability of the composite strata in the floor of J_16-17 coal seam is quantitatively evaluated and divided into five grades: extremely weak, weak, medium, strong and extremely strong. The results show that the areas with strong and extremely strong water-isolation ability of the composite strata of coal floor account for 38.67% of the total area, the areas with moderate and extremely weak water-isolation ability account for 51.45%, and the areas with weak and extremely weak water-isolation ability account for 9.88%. In this paper, the coupling effect of multiple factors on composite strata is considered, and the quantitative classification and zoning discrimination of water-isolation ability of composite strata is realized, which provides technical support for accurate evaluation of water-inrush risk of coal floor.

Published in	Earth Sciences (Volume 11, Issue 1)
DOI	10.11648/j.earth.20221101.12
Page(s)	6-15
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Composite Rock Formations, Entropy Theory, Geographic Information System (GIS), Vulnerability Index, Classification of Natural Discontinuities

References

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APA Style

Bo Chen, Junchao Cui, Qi Wang, Bo Zhang, Xinyi Wang. (2022). Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sciences, 11(1), 6-15. https://doi.org/10.11648/j.earth.20221101.12

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ACS Style

Bo Chen; Junchao Cui; Qi Wang; Bo Zhang; Xinyi Wang. Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sci. 2022, 11(1), 6-15. doi: 10.11648/j.earth.20221101.12

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AMA Style

Bo Chen, Junchao Cui, Qi Wang, Bo Zhang, Xinyi Wang. Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sci. 2022;11(1):6-15. doi: 10.11648/j.earth.20221101.12

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@article{10.11648/j.earth.20221101.12,
  author = {Bo Chen and Junchao Cui and Qi Wang and Bo Zhang and Xinyi Wang},
  title = {Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method},
  journal = {Earth Sciences},
  volume = {11},
  number = {1},
  pages = {6-15},
  doi = {10.11648/j.earth.20221101.12},
  url = {https://doi.org/10.11648/j.earth.20221101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221101.12},
  abstract = {The composite strata of coal floor is an important barrier to block the lifting and bursting of thick limestone groundwater into the mining space. Taking J3 and J4 mining areas of Handicapping Coalfield as the object, this paper selected the thickness ratio of plastic brittle rock core recovery rate, composite comprehensive strength, Equivalent water barrier coefficient, Effective water-resistant layer thickness and fault complexity as the main control factors, and determined the comprehensive weight of index factors based on the entropy weight theory. Using the Archaist vulnerability index grading evaluation model, the water-isolation ability of the composite strata in the floor of J16-17 coal seam is quantitatively evaluated and divided into five grades: extremely weak, weak, medium, strong and extremely strong. The results show that the areas with strong and extremely strong water-isolation ability of the composite strata of coal floor account for 38.67% of the total area, the areas with moderate and extremely weak water-isolation ability account for 51.45%, and the areas with weak and extremely weak water-isolation ability account for 9.88%. In this paper, the coupling effect of multiple factors on composite strata is considered, and the quantitative classification and zoning discrimination of water-isolation ability of composite strata is realized, which provides technical support for accurate evaluation of water-inrush risk of coal floor.},
 year = {2022}
}

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TY  - JOUR
T1  - Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method
AU  - Bo Chen
AU  - Junchao Cui
AU  - Qi Wang
AU  - Bo Zhang
AU  - Xinyi Wang
Y1  - 2022/02/16
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221101.12
DO  - 10.11648/j.earth.20221101.12
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 6
EP  - 15
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221101.12
AB  - The composite strata of coal floor is an important barrier to block the lifting and bursting of thick limestone groundwater into the mining space. Taking J3 and J4 mining areas of Handicapping Coalfield as the object, this paper selected the thickness ratio of plastic brittle rock core recovery rate, composite comprehensive strength, Equivalent water barrier coefficient, Effective water-resistant layer thickness and fault complexity as the main control factors, and determined the comprehensive weight of index factors based on the entropy weight theory. Using the Archaist vulnerability index grading evaluation model, the water-isolation ability of the composite strata in the floor of J16-17 coal seam is quantitatively evaluated and divided into five grades: extremely weak, weak, medium, strong and extremely strong. The results show that the areas with strong and extremely strong water-isolation ability of the composite strata of coal floor account for 38.67% of the total area, the areas with moderate and extremely weak water-isolation ability account for 51.45%, and the areas with weak and extremely weak water-isolation ability account for 9.88%. In this paper, the coupling effect of multiple factors on composite strata is considered, and the quantitative classification and zoning discrimination of water-isolation ability of composite strata is realized, which provides technical support for accurate evaluation of water-inrush risk of coal floor.
VL  - 11
IS  - 1
ER  -

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Author Information

Bo Chen

Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo, China
Junchao Cui

Pingdingshan Tian'an Coal Industry Co. Ltd, Pingdingshan, China
Qi Wang

College of Geosciences and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China
Bo Zhang

Institute of Energy and Chemical Industry, China Pingmei Shenma Group, Pingdingshan, China
Xinyi Wang

Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo, China

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Plain Text BibTeX RIS

APA Style

Bo Chen, Junchao Cui, Qi Wang, Bo Zhang, Xinyi Wang. (2022). Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sciences, 11(1), 6-15. https://doi.org/10.11648/j.earth.20221101.12

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ACS Style

Bo Chen; Junchao Cui; Qi Wang; Bo Zhang; Xinyi Wang. Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sci. 2022, 11(1), 6-15. doi: 10.11648/j.earth.20221101.12

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AMA Style

Bo Chen, Junchao Cui, Qi Wang, Bo Zhang, Xinyi Wang. Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method. Earth Sci. 2022;11(1):6-15. doi: 10.11648/j.earth.20221101.12

Copy | Download

@article{10.11648/j.earth.20221101.12,
  author = {Bo Chen and Junchao Cui and Qi Wang and Bo Zhang and Xinyi Wang},
  title = {Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method},
  journal = {Earth Sciences},
  volume = {11},
  number = {1},
  pages = {6-15},
  doi = {10.11648/j.earth.20221101.12},
  url = {https://doi.org/10.11648/j.earth.20221101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221101.12},
  abstract = {The composite strata of coal floor is an important barrier to block the lifting and bursting of thick limestone groundwater into the mining space. Taking J3 and J4 mining areas of Handicapping Coalfield as the object, this paper selected the thickness ratio of plastic brittle rock core recovery rate, composite comprehensive strength, Equivalent water barrier coefficient, Effective water-resistant layer thickness and fault complexity as the main control factors, and determined the comprehensive weight of index factors based on the entropy weight theory. Using the Archaist vulnerability index grading evaluation model, the water-isolation ability of the composite strata in the floor of J16-17 coal seam is quantitatively evaluated and divided into five grades: extremely weak, weak, medium, strong and extremely strong. The results show that the areas with strong and extremely strong water-isolation ability of the composite strata of coal floor account for 38.67% of the total area, the areas with moderate and extremely weak water-isolation ability account for 51.45%, and the areas with weak and extremely weak water-isolation ability account for 9.88%. In this paper, the coupling effect of multiple factors on composite strata is considered, and the quantitative classification and zoning discrimination of water-isolation ability of composite strata is realized, which provides technical support for accurate evaluation of water-inrush risk of coal floor.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Evaluation of Water Isolation Capability of Coal Floor Rocks Based on ArcGIS Vulnerability Index Method
AU  - Bo Chen
AU  - Junchao Cui
AU  - Qi Wang
AU  - Bo Zhang
AU  - Xinyi Wang
Y1  - 2022/02/16
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221101.12
DO  - 10.11648/j.earth.20221101.12
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 6
EP  - 15
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221101.12
AB  - The composite strata of coal floor is an important barrier to block the lifting and bursting of thick limestone groundwater into the mining space. Taking J3 and J4 mining areas of Handicapping Coalfield as the object, this paper selected the thickness ratio of plastic brittle rock core recovery rate, composite comprehensive strength, Equivalent water barrier coefficient, Effective water-resistant layer thickness and fault complexity as the main control factors, and determined the comprehensive weight of index factors based on the entropy weight theory. Using the Archaist vulnerability index grading evaluation model, the water-isolation ability of the composite strata in the floor of J16-17 coal seam is quantitatively evaluated and divided into five grades: extremely weak, weak, medium, strong and extremely strong. The results show that the areas with strong and extremely strong water-isolation ability of the composite strata of coal floor account for 38.67% of the total area, the areas with moderate and extremely weak water-isolation ability account for 51.45%, and the areas with weak and extremely weak water-isolation ability account for 9.88%. In this paper, the coupling effect of multiple factors on composite strata is considered, and the quantitative classification and zoning discrimination of water-isolation ability of composite strata is realized, which provides technical support for accurate evaluation of water-inrush risk of coal floor.
VL  - 11
IS  - 1
ER  -

Copy | Download