摘要
在综合分析煤层底板突水危险性影响因素的基础上,提取评价煤层底板突水危险性关键指标。为解决突水系数法评价煤层底板突水危险性的局限性,引入模糊聚类法综合评价煤层底板突水危险性。模糊聚类法综合考虑多种因素,解决了突水系数法评价中临界值的问题。以南屯下组煤十一采区为例,提取采深、隔水层厚度和水压为关键指标,运用突水系数法和模糊聚类法综合评价其底板突水危险性,对南屯下组煤开采奥灰水防治具有重要的指导意义。
Based on comprehensive analysis of the influence factors of water-inrush risk from seam floor,this paper extracted the key indexes for evaluating water-inrush risk from seam floor.The paper introduced the comprehensive method of fuzzy cluster to evaluate the water-inrush risk from seam floor in order to solve the limitations in evaluation of water-inrush risk from seam floor by the method of water-inrush coefficient.The method of fuzzy cluster gave a comprehensive consideration of many influence factors and it solved the problems of critical values in evaluation by the method of water-inrush coefficient.By taking the lower group of coal seams in No.11 mining area of Nantun Mine as an example,this paper extracted the mining depth,the thickness of water-resisting layer and water pressure as the key indexes,and conducted a comprehensive evaluation on the water-inrush risk from seam floor by both water-inrush coefficient and fuzzy cluster methods,so this has important guiding significance for the prevention and control of water in Ordovician limestone during mining of the lower group of coal seams of Nantun Mine.
出处
《矿业安全与环保》
北大核心
2010年第1期24-26,共3页
Mining Safety & Environmental Protection
基金
国家自然科学基金重点资助项目(50539080)
山东省自然科学基金资助项目(Y2007F46)
教育部博士学科点专项科研基金资助项目(20070424005)
