摘要
Abstract
As the complex geological condition, diverse cross-section shape, bigger span and larger height difference in the cross section area of diversion tunnel and spillway tunnel in Jishixia Hydropower Station project, the engineering safety is significant. For guaranteeing the safe construction, the excavation and support program, including sub-sequence excavation and spraying plain concrete, anchor rode and pre-stressed anchorage cable supporting, are determined after numerical analysis of surrounding rock stability. The program is strictly implemented in practice without safety incident, and show that it is feasible and effective.关键词
导流洞/交叉段/开挖/支护/施工技术/积石峡水电站工程Key words
diversion tunnel/ cross section/ excavation/ support/ construction technology/ Jishixia Hydropower Station Projec分类
建筑与水利
