石头峡面板堆石坝应力变形分析

本文运用单元生死、荷载步、荷载子步的联合设置,采用分级加载来模拟面板堆石坝逐层填筑的施工过程,对青海省石头峡水电站面板堆石坝进行仿真模拟分析,得到了坝体在竣工期、一期蓄水期与运行期的应力变形特性。结果表明,坝体应力变形满足安全要求,对石头峡面板堆石坝的后期建设和坝体内部观测具有一定的参考价值。

Analysis on Stress-deformation of Shitouxia Slab Rockfill Dam

In this paper,with the combination settings of Element Birth and Death,Load Step and Load Substep,and by adopting stepping loading to simulate the layer-by-layer filling construction process of slab rockfill dam,a simulation analysis is made on the slab rockfill dam of Qinghai Shitouxia hydropower station and the stress deformation characteristics of dam body are obtained in completion period,Phase-I storage period and running period.Results show that stress deformation of dam body meets safety requirements and they have a certain reference value for late construction of Shitouxia slab rockfill dam and internal observation of dam body.