Numerical Calculation of the Effect of Soil Settlement Position on Stress of Aerial Crossing Pipeline Structure

doi:10.3969/j.issn.1672-6952.2016.05.006

Journal of Liaoning Petrochemical University ›› 2016, Vol. 36 ›› Issue (5): 25-28.DOI: 10.3969/j.issn.1672-6952.2016.05.006

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Numerical Calculation of the Effect of Soil Settlement Position on Stress of Aerial Crossing Pipeline Structure

Zhang Yinan， Ma Guiyang， Wang Tongyu， Qi Lin， Qi Chao

College of Petroleum Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China

Received:2015-12-20 Revised:2016-02-28 Published:2016-10-20 Online:2016-10-29

土体沉降位置对管道跨越结构应力影响的数值计算

张一楠,马贵阳,王桐宇,齐林,齐超

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等方面的研究;E-mail:guiyangma1@163.com。
作者简介:张一楠(1990-),男,硕士研究生,从事埋地管道的应力研究;E-mail:1114320959@qq.com。
基金资助:
辽宁省高等学校优秀人才支持计划项目(LR2013016)。

Abstract

Abstract: The earth's settlement would generate additional stress on pipeline , which was common security problems of buried pipelines. Because of the force of aerial crossing pipeline structure was more complicated, therefore a finite element mechanical model of interactions between the pipeline and soil in acrossing segments of buried pipelines was established, to analysis the changes of the stress in aerial crossing pipeline structure, when aerial crossing pipeline structure used different angles. Further, based on the model, a detailed analysis of the stress changes in the pipeline was obtained, when soil settlement occurred at different locations nearby the acrossing segments. The variation was studied on the relationships of the maximum stress within the pipeline with the position of soil settlement, when the angle between the oblique pipeline of crossing structure and the horizontal direction was 50°, provide a theoretical basis for building construction of buried pipelines.

Key words:

摘要： 当土体发生沉降时会使管道产生额外应力,给埋地管道带来安全隐患。埋地管道跨越结构的受力较为复杂,因此建立了跨越段埋地管道与土壤相互作用的有限元力学模型,分析了采用不同角度跨越结构时,管道跨越结构的应力变化情况。此外,根据该模型,详细分析了跨越段附近不同位置土体发生沉降时管道应力的变化情况,重点研究了当跨越结构中斜管段与水平方向夹角为50°时管道内的最大应力随土体沉降位置的变化情况,可为埋地管道的施工建设提供理论依据。

关键词: 土体沉降, 埋地管道, 管道应力, 跨越结构, 数值计算

Zhang Yinan， Ma Guiyang， Wang Tongyu， Qi Lin， Qi Chao.

Numerical Calculation of the Effect of Soil Settlement Position on Stress of Aerial Crossing Pipeline Structure[J]. Journal of Liaoning Petrochemical University, 2016, 36(5): 25-28.

张一楠,马贵阳,王桐宇,齐林,齐超. 土体沉降位置对管道跨越结构应力影响的数值计算[J]. 辽宁石油化工大学学报, 2016, 36(5): 25-28.

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Numerical Calculation of the Effect of Soil Settlement Position on Stress of Aerial Crossing Pipeline Structure

土体沉降位置对管道跨越结构应力影响的数值计算

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