糯租水电站首部枢纽三维有限元计算与分析

3D Finite Element Calculation and Analysis on the Head Complex of Nuozu Hydropower Station

因受右岸坝肩处昆河铁路制约，糯租水电站坝基部位的冲积层（中砂）无法全部清除，有必要采用三维有限元方法对其进行结构计算与分析。计算中主要针对坝体及地基进行三维有限元计算并分析河床冲积层部位是否满足承载力要求，结果证明只需适当基础处理即可满足要求，该首部枢纽布置是合理的、可行的。

For the confinement of Kunming-Hekou railway on the right dam abutment, the alluvium （medium sand） on the dam foundation of Nuozu Hydropower Station can not be removed completely, so it is necessary to adopt the 3D finite element method to conduct the structural calculation and analysis. The calculation is for the dam body and foundation, and whether the riverbed alluvium part meets the bearing capacity requirements or not is analyzed. And the results show that the requirements can be met only after proper foundation treatment and the head complex layout is reasonable and feasible.