Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM

A study on the risk of Cretaceous water inrush in the Ordos Basin in China is of great significance to the safe production and environmental protection of the western coal seam. This paper selects the following five key influencing factors for Cretaceous water inrush: the coal seam mining thickness,...

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Autores principales:	Tingen Zhu, Wenping Li, Weichi Chen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cretaceous water inrush fuzzy analytic hierarchy process entropy method yingpanhao coal mine River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/0bd58a3a49d340899259a3d92d1dd0c1
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spelling	oai:doaj.org-article:0bd58a3a49d340899259a3d92d1dd0c12021-11-05T20:20:07ZRisk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM1366-70171996-975910.2166/wp.2021.028https://doaj.org/article/0bd58a3a49d340899259a3d92d1dd0c12021-10-01T00:00:00Zhttp://wp.iwaponline.com/content/23/5/1249https://doaj.org/toc/1366-7017https://doaj.org/toc/1996-9759A study on the risk of Cretaceous water inrush in the Ordos Basin in China is of great significance to the safe production and environmental protection of the western coal seam. This paper selects the following five key influencing factors for Cretaceous water inrush: the coal seam mining thickness, rock quality designation, distance between the top boundary of the water-conducting fracture zone and the bottom boundary of the Cretaceous system, the thickness of the Cretaceous aquifer, and the height of the water head. Furthermore, based on an analysis of geological and hydrogeological conditions of the Yingpanhao coal mine, the comprehensive weights of these factors were found using a fuzzy analytic hierarchy process and the entropy method (FAHP-EM) to be 0.27, 0.25, 0.22, 0.08, and 0.18, respectively. This paper describes the use of ArcGIS's spatial overlay analysis to create a risk assessment zoning map using these weightings. By comparing the evaluation results of the FAHP-EM and the water inrush coefficient method, it is shown that the FAHP-EM provides additional insight in assessing the risk of coal seam roof water inrush. The research results of this paper provide a theoretical basis for coal mining safety in western China to assess water inrush. HIGHLIGHTS Based on the fuzzy analytic hierarchy process and the entropy method (FAHP-EM), a method for evaluating the risk of water inrush from coal roof is proposed.; This paper selects the following five key influencing factors for Cretaceous water inrush: the coal seam mining thickness, rock quality designation, distance between the top boundary of the water-conducting fracture zone and the bottom boundary of the Cretaceous system, the thickness of the Cretaceous aquifer, and the height of the water head, established the Cretaceous water disaster evaluation system.; Based on an analysis of geological and hydrogeological conditions of the Yingpanhao coal mine, this paper uses the FAHP-EM to create a risk assessment zoning map.;Tingen ZhuWenping LiWeichi ChenIWA Publishingarticlecretaceous water inrushfuzzy analytic hierarchy processentropy methodyingpanhao coal mineRiver, lake, and water-supply engineering (General)TC401-506ENWater Policy, Vol 23, Iss 5, Pp 1249-1265 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cretaceous water inrush fuzzy analytic hierarchy process entropy method yingpanhao coal mine River, lake, and water-supply engineering (General) TC401-506
spellingShingle	cretaceous water inrush fuzzy analytic hierarchy process entropy method yingpanhao coal mine River, lake, and water-supply engineering (General) TC401-506 Tingen Zhu Wenping Li Weichi Chen Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
description	A study on the risk of Cretaceous water inrush in the Ordos Basin in China is of great significance to the safe production and environmental protection of the western coal seam. This paper selects the following five key influencing factors for Cretaceous water inrush: the coal seam mining thickness, rock quality designation, distance between the top boundary of the water-conducting fracture zone and the bottom boundary of the Cretaceous system, the thickness of the Cretaceous aquifer, and the height of the water head. Furthermore, based on an analysis of geological and hydrogeological conditions of the Yingpanhao coal mine, the comprehensive weights of these factors were found using a fuzzy analytic hierarchy process and the entropy method (FAHP-EM) to be 0.27, 0.25, 0.22, 0.08, and 0.18, respectively. This paper describes the use of ArcGIS's spatial overlay analysis to create a risk assessment zoning map using these weightings. By comparing the evaluation results of the FAHP-EM and the water inrush coefficient method, it is shown that the FAHP-EM provides additional insight in assessing the risk of coal seam roof water inrush. The research results of this paper provide a theoretical basis for coal mining safety in western China to assess water inrush. HIGHLIGHTS Based on the fuzzy analytic hierarchy process and the entropy method (FAHP-EM), a method for evaluating the risk of water inrush from coal roof is proposed.; This paper selects the following five key influencing factors for Cretaceous water inrush: the coal seam mining thickness, rock quality designation, distance between the top boundary of the water-conducting fracture zone and the bottom boundary of the Cretaceous system, the thickness of the Cretaceous aquifer, and the height of the water head, established the Cretaceous water disaster evaluation system.; Based on an analysis of geological and hydrogeological conditions of the Yingpanhao coal mine, this paper uses the FAHP-EM to create a risk assessment zoning map.;
format	article
author	Tingen Zhu Wenping Li Weichi Chen
author_facet	Tingen Zhu Wenping Li Weichi Chen
author_sort	Tingen Zhu
title	Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
title_short	Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
title_full	Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
title_fullStr	Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
title_full_unstemmed	Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM
title_sort	risk assessment of cretaceous water inrush in the ordos basin based on the fahp-em
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/0bd58a3a49d340899259a3d92d1dd0c1
work_keys_str_mv	AT tingenzhu riskassessmentofcretaceouswaterinrushintheordosbasinbasedonthefahpem AT wenpingli riskassessmentofcretaceouswaterinrushintheordosbasinbasedonthefahpem AT weichichen riskassessmentofcretaceouswaterinrushintheordosbasinbasedonthefahpem
_version_	1718444019549208576

Risk assessment of Cretaceous water inrush in the Ordos Basin based on the FAHP-EM

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