【摘要】 以缙云公路隧道为例 ,通过对缙云公路隧道现场实测的围岩位移资料分析 ,综合考虑公路隧道所处地质环境及施工工艺水平等因素 ,讨论了公路隧道施工中围岩位移和区域性地质构造、围岩类别、应力水平之间的关系 ,分析了水平收敛和拱顶沉降及不同方向的测线位移与围岩稳定基准之间的关系 ,提出了位移敏感率的概念 ,以便合理规范地评判公路隧道围岩位移的稳定性 ,得出了沿隧道纵向的围岩位移分布与其区域性地质构造和水平应力相适应的结论。其结果对于复杂地质环境中公路隧道的设计、施工和研究工作具有借鉴意义。更多还原

【Abstract】 As an example, through analyses of in situ measurements of Jinyun Road Tunnel and considering the geological environment and construction technics synthetically, relation among rockmass displacement and geological tectonics, rockmass sort, horizontal displacement and vertical subsidence, a new concept"sensitivity of displacement" are presented in order to evaluate stability of displacement normally. The characteristic of distribution of rockmass displacement along the longitudinal direction of road tunnel related to geological tectonics is concluded. It can be used for reference of design, construction and research of road tunnel.更多还原