土石坝施工模拟中填筑层数的选取  

Selection of Fill Layer Number on Simulation of Earth-rockfill Dam Construction

作　　者：赵开伟[1] 李同春[2] 程井[1] 丁林[1] 季昀[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]河海大学水资源高效利用与工程安全国家工程研究中心,江苏南京210098

出　　处：《水电能源科学》2014年第4期106-108,共3页Water Resources and Power

基　　金：国家自然科学基金项目(51009056);教育部博士后流动站青年教师支持项目(20100094120005)

摘　　要：鉴于土石坝施工仿真中分层填筑层数对坝体沉降的影响很大，选取不同高度的土石坝，将同一土石坝分成不同层数填筑，并采用有限单元法模拟施工过程，通过选择不同筑坝材料及地基材料，对比分析了采用不同填筑层数时坝体施工完成后的最大沉降值及最大沉降发生的部位，从而对填筑层数的选取给出建议，即中低高度的土石坝分15~20层填筑、高坝分25~30层填筑比较合适。Aiming at the influence of fill layer number on the dam settlement during construction simulation, different height earth rockfill dam is selected. And the same earth rockfill dam is divided into different fill layer number. At the same time, FEM is used to simulate dam construction process. By choosing different dam material and foundation, the maximum settlement value and the largest settlement occurred are analyzed when dam construction is completed between different fill layer number. Finally, the selection of fill layer number is suggested, that is the simulated layer number for the low earth rockfill dam should be 15 20 and for the high dam should be 25 30.

关 键 词：土石坝 填筑层数 坝体沉降 有限单元法 

分 类 号：TV641[水利工程—水利水电工程] TV311