Journal of Liaoning Petrochemical University

Journal of Liaoning Petrochemical University ›› 2017, Vol. 37 ›› Issue (5): 22-25.DOI: 10.3969/j.issn.1672-6952.2017.05.005

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The Effect Analysis of Settlement of Soil on Stress Fields of  Horizontal Section of Crossing Pipeline Structure

  

  1. (College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China)
  • Received:2016-08-25 Revised:2016-10-15 Online:2017-10-31 Published:2017-11-09

土体沉降对管道跨越结构水平管段应力场的影响分析

吴 昊,马贵阳,项 楠,张亚鑫,孙亚丹,张一楠   

  1. (辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001)
  • 通讯作者: 马贵阳(1965-),男,博士,教授,从事计算流体力学及多孔介质传热传质的研究;E-mail:guiyangma1@163.com。
  • 作者简介:吴昊(1989-),男,硕士研究生,从事埋地管道的应力研究;E-mail:849721562@qq.com。

Abstract: Based on the aerial crossing pipeline structure was widely used in the construction of longdistance pipeline, due to the particularity of its structure, crossing structure extremely vulnerable to soil collapse and other geological disasters. The stress field variation law of the horizontal pipeline section of the crossing structure was studied by establishing the finite element model of the interaction between the buried pipeline and the soil. A detailed analysis of the stress changes in the pipeline was obtained when crossing pipeline structure used different horizontal pipeline section. The maximum stress value along with the variation of the settlement range of the horizontal pipeline was studied when the length of the horizontal pipe was 20 meters. The research showed that the range of horizontal section of crossing pipeline structure and soil sedimentation had greater impact on the stress field in the pipeline crossing the structure. 

Key words: Settlement of soil,    ,  Stress field of pipeline,    ,  Crossing structure,    ,  Horizontal pipeline section,   ,  Numerical simulation

摘要: 跨越结构是长输埋地管道建设中较为常见的结构,由于它的特殊结构,非常容易受到土体塌陷等地质灾害的影响。建立跨越段埋地管道与土壤相互作用的有限元力学模型,研究了跨越结构水平管段应力场的变化规律。详细分析了跨越结构水平管段长度对水平管段应力场的影响;重点分析了当跨越结构水平管段的长度为20 m 时,水平管段内的最大应力随沿河土体沉降范围的变化情况。通过研究发现,土体沉降的范围与管道跨越结构水平管段的长度对管道跨越结构应力场的影响较大。

关键词: 土体沉降,    ,  管道应力场,    ,  跨越结构,    , 水平管段,    , 数值模拟

Cite this article

Wu Hao, Ma Guiyang, Xiang Nan,et al. The Effect Analysis of Settlement of Soil on Stress Fields of  Horizontal Section of Crossing Pipeline Structure[J]. Journal of Liaoning Petrochemical University, 2017, 37(5): 22-25.

吴 昊,马贵阳,项 楠. 土体沉降对管道跨越结构水平管段应力场的影响分析[J]. 辽宁石油化工大学学报, 2017, 37(5): 22-25.

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