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。
The mining method of Sigou Coal Mine on Wangcun town under the roadbed is roomand-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.
出处
《公路工程》
2007年第6期118-122,共5页
Highway Engineering
关键词
采空区
桥基
变形失稳机理
数值模拟
mined-out area
foundation of bridge
distortion and stability of mechanism
numerical stimulation
