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小浪底泄洪、发电、引水等建筑物集中布置于左岸 ,该区域岩层软硬相间 ,各种结构面较为发育。通过对岩体各种可能滑动模式的稳定计算、有限元分析 ,并根据开挖施工中出现的具体情况 ,确定了对出口边坡采用以预应力锚索和抗滑桩为主的加固措施。施工中大量采用双层保护预应力锚索 ,在国内水利工程尚属首次。原型观测资料表明 ,处理效果好 ,边坡稳定。
Xiaolangdi flood discharge, power generation, water diversion and other buildings are mainly arranged on the left bank. The rock strata in this area are interlaced with various structural planes. Based on the stability calculation and finite element analysis of all possible sliding modes of rock mass, and according to the specific situations in excavation, the reinforcement measures of prestressed anchor cables and anti-slide piles are mainly adopted for the exit slopes. The construction of a large number of double protection prestressed anchor cable, the first time in the domestic water conservancy project. Prototype observation data show that the treatment effect is good, slope stability.