Water-conserving mining influencing factors identification and weight determination in northwest China
Limin Fan
Liqiang Ma
Yihe Yu
Shuokang Wang
Yujun Xu
摘要：Water-conserving mining is an effective way to alleviate the contradiction between fragile ecological environment and high-intensity coal mining in the arid and semi-arid region of northwest China.It needs to consider the engineering and geological conditions,hydrogeological conditions and mining methods of coal seams.From the three aspects,this paper systematically analyzes the influencing factors and establishes an identification model with multi-level structures.The model includes three primary factors (including the engineering and geological conditions,hydrogeological conditions and mining methods),nine secondary factors (including overlying strata thickness,aquiclude,mining parameters and etc.),sixteen third-tier factors (including the faults,aquiclude thickness and effective mining height and etc.) and twelve fourth-tier factors (including the fault throw exponent,aquiclude permeability and coal pillar sizes and etc.).On the basis,the analytic hierarchy process is used to build the judgment matrix and obtain the weight of each influencing factor.The results indicate that the overlying strata thickness,aquiclude and effective mining height are the most important factors among the primary factors of engineering and geological conditions,hydrogeological conditions and mining methods,respectively.The research results could provide theoretical references for the water-conserving mining of coal resources in northwest China.
机标关键词：
资助基金：This paper was supported by the National Key Basic Research Program of China (973 Program)(grant number 2015CB251600)the National Natural Science Foundation of China(51874280)the Open Project of Key Laboratory of Mine Geological Hazards Mechanism and Control(grant number KF2017-02)
论文发表日期：2019-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：7( 95-101 )
英文信息