沥青混凝土心墙风化料坝施工及蓄水过程模拟  

Construction and Water Storage Simulation of Weathered Material Dam with Asphalt Concrete Core Wall

作　　者：孙立国[1] 江守燕[1] 杜成斌[1] 黄文仓 黎亚生 曹庆明 SUN Liguo;JIANG Shouyan;DU Chengbin;HUANG Wencang;LI Yasheng;CAO Qingming(College of Mechanics and Materials,Hohai Univ.,Nanjing 211100,China;Yunnan Provincial Investigation,Design&Research Institute of Water Conservancy&Electric Power,Kunming 650021,China)

机构地区：[1]河海大学力学与材料学院,南京211100 [2]云南省水利水电勘测设计研究院,昆明650021

出　　处：《三峡大学学报（自然科学版）》2022年第6期35-41,共7页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(11372098)。

摘　　要：针对沥青混凝土心墙风化料坝的施工和蓄水过程模拟进行研究,建立了大坝-地基系统三维有限元模型,根据现场施工资料拟定大坝施工及蓄水过程模拟方案.对比分析了施工期沥青混凝土心墙竖向变形和坝基基础沉降的有限元计算结果与现场对应的监测数据.结果表明,施工期心墙垂直应变和坝基沉降的计算值与实测值的变化趋势及数值基本上保持一致.在此基础上,进一步对大坝满蓄期的应力-变形进行了预测计算,大坝应力-变形分布符合沥青混凝土心墙坝的一般分布规律,量值基本合理,满蓄期大坝变形及应力性态良好.A three-dimensional finite element model of the dam-foundation system is established based on the study of the construction and water storage process simulation of the weathered asphalt concrete core dam. According to the site construction data, the dam construction and water storage process simulation scheme is formulated. The finite element calculation results of the vertical deformation of the asphalt concrete core wall and the settlement of the dam foundation during the construction period are compared and analyzed with the field monitoring data. The results show that the calculated values of the vertical strain of the core wall and the settlement of the dam foundation during the construction period are basically consistent with the measured results. Furthermore, the stress deformation of the dam during the full storage period is predicted and calculated. The stress and deformation distributions of the dam conform to the general distribution law of asphalt concrete core dam, and the quantity value is basically reasonable. The deformation and stress behavior of the dam during the full storage period are good.

关 键 词：沥青混凝土 风化料坝 心墙 邓肯-张模型 现场监测 应力-变形 

分 类 号：TV641[水利工程—水利水电工程]