梯形与准梯形渠道冻胀有限元分析  

Finite Element Analysis on Frost-heaving of Channel with Trapezoidal or Quasi-Trapezoidal Cross Section Based on ANSYS Software

作　　者：郭利霞[1] 王正中[1] 李甲林[1] 张茹[1] 钟凌[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《节水灌溉》2007年第4期44-47,50,共5页Water Saving Irrigation

摘　　要：根据混凝土衬砌梯形渠道冻胀变形及破坏特征,通过恰当的假设及简化,利用有限元分析软件ANSYS对其冻胀过程进行数值模拟,对温度场和应力场及变形场进行分析研究,模拟结果与野外观测资料基本吻合,表明渠道冻胀的二维有限元数值模拟能够为季节冻土区渠道工程设计及力学计算提供参考和科学依据,同时模拟了准梯形渠道冻胀,指出准梯形断面抗冻胀能力高于梯形断面。Based on the characteristic of frost-heaving distortion and damage of concrete lining channel with trapezoidal cross section , through reasonable assumption and simplification, this paper simulated its frost heaving process with the application of FEM software ANSYS , studied its temperature field ,the stress and deformation field. The theoretical analysis results agreed well with the local test data. This indicated that the 2-dimension FEM numerical simulation result of frost-heaving channel could provide theoretical base for channel design and dynamics calculation in seasonal frozen area. Moreover, this paper simulated channel with quasl-trapezoidal cross section and pointed out that its anti-frost heaving damage capability was better than trapezoidal cross section channel. ..

关 键 词：ANSYS软件 渠道 冻胀 

分 类 号：S27[农业科学—农业水土工程] TV3[农业科学—农业工程]