坝下埋管三维有限元分析  

Three Dimensional FEM Analysis of Culvert under Earth Dam

作　　者：李宗坤[1] 赵庆[1] 乔小琴[1] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450002

出　　处：《水电能源科学》2010年第7期89-91,77,共4页Water Resources and Power

摘　　要：在考虑埋管分缝基础上,利用有限元软件ABAQUS对坝下埋管施工过程进行三维有限元模拟,以研究材料参数对埋管垂直土压力与沉降的影响规律。结果表明,埋管分缝对埋管受力有利,土压力系数随弹性模量的增加而减小、随填土摩擦角增大而增大、随地基刚度的增加而增大;埋管沉降随弹性模量的增大而减小、随地基刚度的增加而减小,填土摩擦角值对沉降影响不大。On the basis of considering the parting of buried pipe,three dimensional finite element simulation of the culvert under earth dam during construction process is implemented by using finite element method software ABAQUS.The influence laws of material parameters on vertical earth pressure and settlement of buried pipe is analyzed.The results show that the parting of buried pipe is beneficial to the stress;the earth pressure coefficient decreases with increase of elastic modulus,whereas it increases with increase of filling angle of friction and foundation stiffness;on the contrary,the settlement of buried pipe decreases with increase of elastic modulus and foundation stiffness,but it is unaffected by filling angle of friction.

关 键 词：坝下 埋管 三维有限元分析 Earth Dam FEM Analysis 地基刚度 弹性模量 三维有限元模拟 摩擦角 沉降影响 有限元软件 土压力系数 垂直土压力 影响规律 填土 施工过程 分缝 材料参数 ABAQUS 受力 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程] TV7[水利工程—水利水电工程]