励磁涌流
煤矿开采
水文地质学
含水层
采矿工程
地质学
煤
构造盆地
白垩纪
水质
水资源管理
石油工程
地下水
岩土工程
环境科学
工程类
古生物学
生物
电气工程
生态学
电压
变压器
废物管理
作者
Ting Zhu,Wenping Li,Weichi Chen
出处
期刊:Water Policy
[IWA Publishing]
日期:2021-09-18
卷期号:23 (5): 1249-1265
被引量:7
摘要
Abstract 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.
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