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以虎跳峡滑石板边坡拉裂区失稳可能形成的滑坡为研究对象,依据滑石板边坡稳定性分析结果预测滑坡规模,在分析深切峡谷天然河道滑坡灾害特点的基础上,从滑坡涌浪、堰塞体上游壅水过程、堰塞溃坝水流挟带块石粒径等方面,对滑石板滑坡可能造成的两家人水电站各厂址区域危害进行分析预测,得出的结论可作为两家人工程厂址选择可行性论证的决策依据。提出了基于Delft3D软件水动力学数值模拟的滑坡堰塞体上游水位壅高过程仿真分析方法,以及应用水利水电工程立堵截流抛石粒径计算理论进行堰塞体溃坝水流挟带最大块石粒径估算的方法,为深切峡谷天然河道滑坡灾害防治措施和滑坡后果影响的综合分析提供参考。
Based on the landslide which may be formed by the instability of the fractured zone in the TGP area of Tiger Leaping Gorge, the scale of the landslide is predicted based on the stability analysis of the slope. Based on the analysis of the characteristics of natural river landslides in the deep gorges, Wave and dam body upstream 壅 water process, barrier damped water flow entrained with rock particle size and other aspects of the landslide of the two people may cause hydropower station hazards of the site analysis and forecast, the conclusion can be used as two people Decision basis of feasibility study of construction site selection. Based on the numerical simulation of Delft3D software, the simulation analysis method of the water level in the upstream of landslide dam body based on the numerical simulation of Delft3D software is presented. The maximum rock mass The method of particle size estimation provides reference for the comprehensive analysis of the influence of natural river landslide disaster prevention and control and landslide consequences in deep gorges.