摘要
预可研阶段坝址初选时对三台坝址两岸进行勘探工作,基本查明了危岩体的基本特征,并对危岩体的稳定性进行计算,结果表明:三台1号危岩体整体在蓄水后基本稳定,各次级危岩体基本稳定;在围堰挡水期除次级危岩体①在地震工况下不稳定外,其他次级危岩体稳定性较差,蓄水后次级危岩体均不稳定。提出了对危岩体进行加固和防护的建议。
The basic characteristics of the perilous rock block are ascertained during the exploration of both bank sides of Santai damsite in the initial site selection of pre-feasibility study period. The stability of the rock block is calculated. The results show that the whole and subprime perilous rock block is basically stable after impoundment. The No. 1 sub- prime perilous rock block is unstable under earthquake condition and the other subprime perilous rock blocks are in poor stability during the cofferdam water retaining period. All the subprime perilous rock blocks are unstable after impound- ment. The suggestions of consolidation and protection for the perilous rock blocks are put forward with.
出处
《水电与新能源》
2012年第3期24-28,共5页
Hydropower and New Energy
关键词
危岩体
基本特征
稳定性分析
perilous rock block
basic characteristics
stability analysis
