论文部分内容阅读
西南山区地质状况复杂,公路工程建设多存在地质灾害预警处治的问题。以西南某山区公路1#隧道为例,对覆松散崩坡积体浅埋偏压隧道的地质状况及可能发生的地质灾害进行研究,提出可行的处治措施并进行现场监测,研究隧道加固处治效果。结果表明:1#隧道洞口及沿线地质环境差,地质灾害类型多,存在崩塌、滑坡等地质灾害发生的可能;隧道洞口崩坡积体较多,承载力弱,稳定性差,需加固提高承载力;洞口注浆加固作为有效处治方法,效果良好,可有效减小洞顶松散土体在隧洞开挖及开挖完成后整个时期的总沉降量。
Geological conditions in the southwestern mountainous areas are complex, and there are many problems in early warning and treatment of geological disasters in highway construction. Taking 1 # tunnel in a mountain highway in southwest China as an example, the geological conditions of shallow buried biased tunnels in FuSaosan landslide and the possible geological disasters are studied, feasible treatment measures are put forward and on-site monitoring is conducted to study the effect of tunnel reinforcement . The results show that there are many geological disasters in the tunnel entrance and along the route, such as landslides and landslides. There are many landslides and landslides in the tunnel entrance, which are weak in bearing capacity and poor in stability. They need to be reinforced to improve the bearing capacity ; Grouting reinforcement as an effective method of hole treatment, the effect is good, can effectively reduce the loose roof of the tunnel in the tunnel excavation and excavation completed the entire period of the total settlement.