滑坡作用下的埋地管道强度失效分析

英文篇名：Strength Failure Analysis of Buried Piping Loaded with Landslide
中文刊名：化工设备与管道
英文刊名：Process Equipment & Piping
作者：李华 ; 徐震 ; 杨永和 ; 陈小辉 ; 陈旭
英文作者：LI Hua~1 ; XU Zhen~2 ; YANG Yong-he~2 ; CHEN Xiao-hui~1 ; CHEN Xu~1 (1.School of Chemical Engineering and Technology ; Tianjin University ; Tianjin 300072 ; China ; 2.Petro China ; West Pipeline Company ; Urumqi 830012 ; China)
中文关键词：滑坡 ; 埋地管线 ; 土弹簧模型 ; 应力应变 ; 有限元分析
英文关键词：landslide ; buried pipeline ; soil spring model ; stress-strain ; FEA
出版日期：2012-12-15
机构：天津大学化工学院;中国石油西部管道公司;
年：2012
期：06
出版单位：化工设备与管道

摘要

利用ANSYS有限元分析软件,建立了滑坡作用下管道的分析模型,用土弹簧模型模拟地下管道的变形及应力特点,考虑管土之间相互作用的非线性特征。通过算例分析管道在发生滑坡作用时的应力应变曲线,探讨了管道在发生滑坡作用时的受力特征,得出了一些有意义的结果。最后,由计算结果推导出便于工程实际应用的判别管道强度失效的拟合公式。
An analysis model for buried pipeline subjected to the landslide was established by using finite element software ANSYS. In order to simulate the deformation and force features of the buried pipeline,the soil spring model was used and the nonlinear characteristics of pipe-soil interaction were also considered.The stress-strain curves of the buried pipeline caused by landslide response were analyzed through the examples.The study resulted in a formula as engineering criterion which is available for the safety design and evaluation for the failure of pipeline due to landslide.

引文

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