| 洪水中漂浮管道的应力分析 |
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| 引用本文： | 王晓霖,帅健. 洪水中漂浮管道的应力分析[J]. 工程力学, 2011, 0(2): 212-216 |
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| 作者姓名： | 王晓霖 帅健 |
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| 作者单位： | 中国石油大学(北京)机电工程学院;中原油田博士后科研工作站; |
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| 基金项目： | “十一五”国家科技支撑计划课题项目(2006BAK02B01) |
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| 摘 要： | 洪水对管道构成严重威胁,可能导致管道冲出、裸露甚至大范围漂浮.管道在动水作用力、浮力、重力及岸边土体抗力的共同作用下发生空间弯曲变形.建立洪水管道力学分析模型,考虑管-土间非线性相互作用、管道轴力和管材非线性等因素,推导了管道空间变形曲线方程和变形协调方程,采用迭代方法求解管道的应力与应变.基于解析方法开发计算程序,通...
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| 关 键 词： | 管道 洪水 应力-应变 解析方法 空间弯曲变形 非线性 |
STRESS ANALYSIS OF PIPELINE FLOATING IN FLOOD |
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| WANG Xiao-lin,SHUAI Jian. STRESS ANALYSIS OF PIPELINE FLOATING IN FLOOD[J]. Engineering Mechanics, 2011, 0(2): 212-216 |
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| Authors: | WANG Xiao-lin SHUAI Jian |
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| Affiliation: | WANG Xiao-lin1,2,SHUAI Jian1(1.Faculty of Mechanical and Electronic Engineering,China University of Petroleum,Beijing 102249,China,2.Postdoctoral Scientific Research Workstation,Zhongyuan Oil Field,Puyang 457001,China) |
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| Abstract: | River-crossing pipeline is threatened by flood which could induce the pipeline being eroded and exposed,moreover,floating in a large scale.Under the combined effects of dynamic water,buoyancy,gravity and resistance of bank soil,pipeline generally presents three-dimensional bending.A mechanical analysis model is built to investigate the mechanical behaviour of pipeline exposed in flood.Taking into account the nonlinear pipe-soil interaction,the axial force and material nonlinearity of pipeline steel,the dime... |
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| Keywords: | pipeline flood stress and strain analytical methodology dimensional bending nonlinear |
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