西部生态脆弱矿区矿井突水溃沙危险性分区

以榆神府矿区为例，开展了以多因素融合为基础的突水溃沙评价研究。在突水溃沙机理分析的基础上讨论了突水溃沙灾害形成的影响因子，选取沙层厚度、含水层富水性、有效隔水层厚度和采动空间等作为研究榆神府矿区突水溃沙的关键因素，编制了无量纲图，采用熵权法确定了各因素的权重，在GIS平台下构建了基于多因素融合技术的榆神府矿区突水 溃沙评价模型，以此为基础对榆神府矿区突水溃沙危险性进行综合分区，经验证，评价结果较为合理，说明构建的评价模型适用于榆神府矿区突水溃沙危险性评价。

Risk evaluation on water and sand inrush in ecologically fragile coal mine

This paper studied the risk evaluation methods of water and sand inrush from coal roof based on the dimensionless multi factor information fusion technique.Taking Yushenfu coal mine as example,based on the analysis of water inrush mechanism,the paper identified four key factors affecting the water inrush and sand inrush from the roof,which include sand thickness,water richness of aquifer,effective thickness of aquiclude layer and mining space.Each factor was dealt with dimensionless quantity according to the structural and hydro geological conditions,and the weights of each factors were determined by entropy weight method,synchronously.Then,the dimensionless multi factor information fusion model for the risk evaluation Yushenfu coal mine was established on the basis of the ArcGIS.Using the model,the authors got the water inrush and sand inrush risk zoning map in Yushenfu coal mine.The result shows that it is reliable to apply the model on the evaluation and partition of the water inrush and sand inrush from the coal roof in Yushenfu coal mine.