【摘要】 华北石炭—二叠纪煤系山西组煤层开采受顶板砂岩含水层水影响严重。砂岩含水层富水性取决于多种因素,以龙固煤矿山西组3煤开采为例,分析了煤层顶板砂岩富水性的影响因素。在单因素分析的基础上,应用模糊聚类方法对含水层富水性进行了评价。研究表明,龙固煤矿山西组砂岩含水层富水性受砂岩厚度、砂泥岩组合特征及构造发育程度等因素影响,将这些影响因素作为含水层富水性指示信息样本进行聚类分析,对含水层富水性进行了分级分区。研究成果对该区矿井水防治具有一定的指导意义,也为含水层富水性的预测研究开辟了一种新的途径。更多还原

【Abstract】 The coal mining of Shanxi formation,Permo-Carboniferous system in North China is severely affected by the water from roof sandstone aquifer and the water enrichment of sandstone aquifer depends on many factors.The paper analyzed the influencing factors of the water enrichment of the roof sandstone taking the mining of Seam No.3,Shanxi formation in Longgu mine as an example.On the basis of single factor analysis,the authors used the fuzzy clustering method to evaluate the water enrichment of sandstone aquifers.The analysis showed that the water enrichment of sandstone aquifers of Shanxi formation in Longgu mine were affected by many factors,such as the thickness of sandstone,the combination features of sandstone and mudstone,and the development level of geological structure,etc.Taking the influencing factors as the information samples of aquifer water enrichment indices,we made the clustering analysis of grading and zoning on the water enrichment of sandstone aquifer by using the fuzzy clustering method,providing a certain directive significance for the water prevention and control and a new approach for the prediction of water enrichment of sandstone aquifer.更多还原