【摘要】 基于发展的堆石料的静动力耦合模型,提出一种可以在加载过程中每一时步进行外荷载和位移的平衡迭代的三维有限元分析方法,一次性完成堆石坝的施工、蓄水、地震等渐近加载过程的数值仿真模拟.应用该方法对公伯峡面板堆石坝进行全过程的数值计算,得到坝体最大沉降为98.7cm,面板峰值动拉应力为5.36MPa;进一步说明计算得到的坝体静动态响应更接近实际情况.更多还原

【Abstract】 On the basis of static-dynamic force coupling model of rockfill material,a 3D finite element method is developed in which exterior loads and displacements can be evenly iterated in each step during the process of loading.It can complete the numerical simulation of construction of rockfill dam,storing water and seismic effect once only.This method is applied in Gong Boxia project to numerically analyze the whole process of rockfill dam.The maximum vertical displacement of the dam is 98.7 cm and the maximum dynamic major principal stress on slab is 5.36 MPa.The results approve that the static and dynamic response calculated with this method further approximate to actual circumstance.更多还原