摘要
溪洛渡水电站的拱肩槽开挖高边坡最高约250 m,进水口开挖高边坡最高约160 m,其稳定性是复杂的空间问题。通过对拱肩槽及进水口边坡的应力场、位移场和破坏区域模拟计算表明:拱肩槽、进水口边坡在拟订的开挖坡比条件下整体均处于稳定状态。边坡局部稳定性分析表明:拱肩槽、进水口边坡均存在不同程度的不稳定性块体,对边坡开挖施工和后期工程运行存在不同程度威胁。针对研究中发现的上述问题提出了相应的处理措施。
The spandrel groove excavation of the Xiluodu Hydropower Station forms a slope of 250 m high, whose stability is a complicated space problem. The system calculation and analysis on stress field, displacement field and failure zone indicate the high rock slope of spandrel groove and water inlet are stable if they are excavated in the designed slope ratio. The local stability analysis on the rock slope indicates there exist unstable rockmass blocks in the rock slope of spandrel groove and water inlet which have different level threats to the excavation and operation of the slope. The relevant steps have been put forward to solve the problems about the stability of the slopes of the spandrel groove and water inlet.
出处
《长江科学院院报》
CSCD
北大核心
2007年第2期17-21,共5页
Journal of Changjiang River Scientific Research Institute
关键词
溪洛渡水电站
岩石高边坡
稳定
Xiluodu Hydropower Station
high rock slope
stability
