论文部分内容阅读
随着我国公路工程深入山区,高标准等级公路增多,公路隧道的建设将大规模增加。在西南地区,工程地质条件复杂,尤其是穿越煤层的隧道施工区,将对隧道施工造成巨大困难,监控量测是保证煤系地层地区浅埋暗挖隧道施工安全的重要手段。通过对某浅埋煤系地层隧道拱顶下沉与周边收敛监控量测数据的分析,总结了施工期内煤系地层浅埋隧道开挖后围岩的变形规律,可为类似工程地质条件下的隧道施工提供借鉴。
With the deepening of highway engineering in our country and the increase of high standard grade highways, the construction of highway tunnels will increase on a large scale. In Southwest China, complicated engineering geological conditions, especially the tunnel construction area crossing the coal seam, will cause great difficulties in tunnel construction. Monitoring and measuring are an important means to ensure the construction safety of shallow-buried tunnels in coal-bearing strata. Based on the analysis of monitoring data of vault settlement and surrounding convergence monitoring in a shallow coal measure strata tunnel, the deformation law of surrounding rock after excavation of shallow tunnel in coal measure strata during construction period is summarized. Tunnel construction to provide reference.