双塔水库大坝渗流反演分析与特征水位渗流计算研究

摘要

结合双塔水库大坝现场检查以及地质勘探情况,通过渗流观测资料分析对坝体渗漏成因进行了分析,通过AutoBank软件建立平面典型断面有限元模型,通过参数渗流参数反演分析调整了本次计算的渗透系数,计算得到浸润线规律符合一般均质坝分布.并进行了特征水位下稳定渗流计算分析,计算结果表明心墙下游侧出逸点偏高,并未自心墙与坝基接触部位形成出逸,坝脚出逸处渗透坡降满足要求.%This paper combined with the on-site inspection of Twin Towers reservoir dam and geological exploration,through the analysis of the seepage observation data of dam leakage causes are analyzed,a typical section plane finite element model by AutoBank software.The parameters are analyzed by the parameter seepage parameter analysis.The calculated permeability coefficient is calculated to be consistent with the general homogeneous dam distribution.And the characteristics of water seepage calculation,the calculation results show that the downstream side of the core wall is too high,and the contact point between the core wall and the dam foundation is formed.