基于绿色部分充填采煤的保水开采技术研究

摘要

In view of the technical problems of water-conservation mining in Shendong Mining Area,based on the systematic analysis of the problems of water-retention,the author puts forward the research ideas and methods of green-part filling mining to solve the water-holding problems through theoretical analysis,field investigation and numerical simulation.The mechanism of filling and water conservation,technical characteristics and filling process are analyzed,the relationship between the partial filling method and the water-resisting key strata is deduced and calculated,under the premise of complete water-resisting key strata,and the mining width and retaining width are deduced according to the water-resisting key strata theory and effective area theory.Numerical simulation shows that the selection of partial filling parameters has an important influence on the height of the water-bearing fracture zone.%针对神东矿区保水开采技术难题,在系统分析了现解决保水问题的基础上,通过理论分析、现场调研及数值模拟等方法,提出了以绿色部分充填开采解决保水开采研究思路及方法并进行了研究.对部分充填保水开采机理、技术特征、充填工艺进行了分析,推导计算出部分充填法开采满足隔水关键层不发生破断的关系,并根据隔水关键层理论及有效面积理论推导出采、留宽.数值模拟表明,部分充填参数的选择对导水裂隙带的高度有重要影响.