【摘要】 随着土石坝坝体高度的增加,土石坝的应力和变形分析已成为大型土石坝设计中不可缺少的一部分,有限元法是进行应力和变形分析的一种有效方法.在土石坝有限元计算中,难点主要是ANSYS中并不包含土石坝材料的本构关系.利用ANSYS提供的APDL语言二次开发平台,开发出了在土石坝工程中应用广泛的邓肯-张E-B模型,并应用于安宁水电站沥青混凝土心墙堆石坝的应力与变形计算,结果较好地反映了土石坝的实际应力变形规律.更多还原

【Abstract】 The stress and displacement compute of rock fill dam has become necessary with the increase of the dam height,and the most effective measure of computing stress and displacement is the finite element method(FEM).The most difficulty in FEM analysis of rock fill dam is there is no apprppriate model in ANSYS for the matrials of rock fill dam.In this paper,the second development of APDL language which is provided by ANSYS is used to perform Duncan-Chang E-B model in ANSYS,then is applied to the stress and displacement compute of Anning Hydropower station.The results are proved to accord with the laws of actual stress and displacement.更多还原