摘要
输水隧洞开挖后的围岩稳定性问题是影响工程设计和施工安全的关键问题。文章选取胜利水电站输水隧洞的出口段作为研究对象,利用新奥法支护时机原理选取出口段的某一洞段为应用实例,计算分析了该洞段的最佳支护时机问题。
The stability of surrounding rock after excavation of water conveyance tunnel was the key issue that affects the safety of engineering design and construction. It took the export section of Shengli Hydropower Station as a research object. This paper analyzed the optimal support time of the hole section by using the support time principle of New Austrian Tunneling method.
关键词
输水隧洞
数值模拟
支护时机
water conveyance tunnel
numerical simulation
support time
