【摘要】 王村乡寺沟煤矿采区路基下煤层开采方法为房柱式开采。在线路上形成的采空区位于k72+980~k73+240范围内,随着公路施工及煤层开采,采空区安全隐患逐渐暴露。利用计算机数值模拟分析,结合采空区情况,给出稳固性初步评价,为合理选择跨越采空区桥梁形式提供依据。更多还原

【Abstract】 The mining method of Sigou Coal Mine on Wangcun town under the roadbed is room-and-pillar mining.The mined-out area on the line lies in the range of k72-k73 +980 +240.With highway construction and coal mining,the security risks of mined-out area are gradually exposed.Combining the factual instance of minedout area,using computer simulates analysis,the fringe estimate of stability is given.Thereunder is offered for rational choosing of spanning mined-out area bridge modality.更多还原