复杂地质条件下水工长隧洞开挖支护方案优化

摘要

结合木里河卡基娃电站引水隧洞的开挖施工，分析了该电站引水隧洞施工中所遇见的几种典型地质条件的开挖支护方案，并对各方案的开挖支护措施作了具体阐述，以促进复杂地质条件下水工长隧洞开挖支护方案的研究。%Combining with the diversion tunnel excavation of Mulihe Kajiwa power station,the paper analyzes diversion tunnel excavation scheme under several typical geological conditions of the power station,and specifically describes their own excavation support measures,with a view to promote the long tunnel excavation support scheme research under complicated geological conditions.