Analysis of influcnce of surcharge loads on buried pipelines with variable cross-sections

CAI Zhong-xiang; ZHANG Chen-rong; HUANG Mao-song

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Analysis of influcnce of surcharge loads on buried pipelines with variable cross-sections

更新时间：2026-06-25

- Analysis of influcnce of surcharge loads on buried pipelines with variable cross-sections
- Vol. 32, Issue S1, (2011)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 同济大学岩土与地下工程教育部重点实验室,上海,200092
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU431
- Online First：16 May 2011，
  
  Published：2011
- 稿件说明：
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CAI Zhong-xiang, ZHANG Chen-rong, HUANG Mao-song. Analysis of influcnce of surcharge loads on buried pipelines with variable cross-sections[J]. 2011, 32(S1).
DOI：

CAI Zhong-xiang, ZHANG Chen-rong, HUANG Mao-song. Analysis of influcnce of surcharge loads on buried pipelines with variable cross-sections[J]. 2011, 32(S1). DOI：

摘要

地埋管线在市政建设中容易损坏，基于Winkler地基模型，将地埋管线简化为变刚度Euler-Bernoulli梁，根据梁单元微分方程，采用传递矩阵法求解梁截面处位移、转角、弯矩及剪力，给出变刚度梁的一般分析方法。通过算例验证方法的合理性和适用性，分析了接头刚度变化对管线位移、内力的影响，为市政建设中地埋管线保护提供理论指导。

Abstract

Municipal construction causes damage to nearby pipelines. Based on the Winkler foundation model

which simplified the pipeline as Euler-Bernoulli beams of variable stiffness

the transfer matrix method is proposed to analyze the performance of the pipeline according to the beam’s element differential equation. This method is verified by comparing with analytic solutions for beam with constant stiffness section. Then it shows the influence of joint stiffness on the deflection and internal force of the pipelines. It’s hoped that the work above can supply technical support and guidance to the design and construction of pipelines

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