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龙滩水电站进水口边坡最大坡高达 4 2 0m ,岩质高边坡稳定问题是设计必须解决的重大工程技术问题之一 ,通过多种数值分析方法确定了合理的开挖体型、恰当的加固支护措施以及施工程序 ,并对多种运行工况进行了模拟。介绍三维有限元稳定分析计算成果 ,计算表明 :边坡在施工期整体稳定 ;大坝建成后有利于边坡稳定 ;拟定的边坡加固支护措施及预应力锚索的加固作用明显 ,设计参数是可行的。
Longtan Hydropower Station inlet slope maximum slope up to 4220m, rock slope stability is the design must be solved one of the major engineering and technical issues, through a variety of numerical analysis to determine the reasonable excavation size, the appropriate reinforcement Support measures and construction procedures, and a variety of operating conditions were simulated. The results of three-dimensional finite element analysis are introduced. The calculation results show that the slope is stable in the whole construction period, and the stability of the slope is favorable after the completion of the dam. The proposed reinforcement measures of the slope and reinforcement of the prestressed anchor cable are obvious. The design parameters It works.