【摘要】 根据温度场和渗流场的相似性,利用有限元分析软件ANSYS的热分析功能计算土石坝渗流问题。通过AN-SYS的优化设计功能,建立了基于ANSYS的渗透系数反演模型,反演得到更符合大伙房水库大坝实际工况的渗透系数,利用该渗透系数进行渗流数值计算,通过对计算值与实测值的对比表明,有限元计算值与实测值相对误差较小,拟合结果能够满足精度要求。说明所求得的渗透系数比较合理,可以用于渗流数值计算。更多还原

【Abstract】 According to the similarity of temperature field and seepage field,ANSYS,the thermal analysis function of finite element analysis software is used to compute the seepage problem about earth and rock-fill dam.The permeability coefficient inversion model was established based on ANSYS through optimization design function of ANSYS,a new permeability coefficient more accorded with practical project situation of the Dahuofang Reservoir was obtained in the inversion.The new permeability coefficient was used to calculate the value of seepage,by comparing the computed value with the measured value,showing that the relative error between finite element calculated value and measured value is less,the fitting result can meet the demand of accuracy,it is stated that the permeability coefficient obtained is fairly reasonable and may be used to calculate the seepage value.更多还原