阿海重力坝倾斜层状地基力学参数敏感性分析

基于大型通用商业软件ADINA,研究了倾斜层状岩体地基的有限元模型,并以云南阿海水电站混凝土重力坝为背景,通过调整地基垂直层面和平行层面的力学参数,进行敏感性分析.研究结果表明,复杂层状地基的力学参数变化对坝体应力和变形有明显影响,随着坝基岩体垂直和平行层面变形模量的改变,坝体应力和变形相应改变.

Sensitivity analysis of mechanical parameters of sloping layered rock foundation of Ahai gravity dam

Based on the commercial software ADINA,a finite element model of a sloping layered rock foundation was studied.Using the concrete gravity dam of the Ahai Hydropower Station in Yunnan province as an example,parameter sensitivity analysis was performed by adjusting the mechanical parameters of the vertical layer and parallel layer.The analysis results show that the mechanical parameters have an obvious effect on the dam stresses and displacements,and that the dam stresses and displacements vary with the deformation modulus of the vertical layer and parallel layer.