|本期目录/Table of Contents|

[1]张一楠,马贵阳,周玮,等.沉降土体对管道跨越结构应力影响的分析[J].中国安全生产科学技术,2015,11(8):106-111.[doi:10.11731/j.issn.1673-193x.2015.08.018]
　ZHANG Yi-nan,MA Gui-yang,ZHOU Wei,et al.Analysis on influence to stress of pipeline with crossover structure by soil mass settlement[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(8):106-111.[doi:10.11731/j.issn.1673-193x.2015.08.018]
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沉降土体对管道跨越结构应力影响的分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年8期
页码:
106-111
栏目:
职业安全卫生管理与技术
出版日期:
2015-08-30

文章信息/Info

Title:
Analysis on influence to stress of pipeline with crossover structure by soil mass settlement
作者:
张一楠1; 马贵阳1;  周玮2; 王磊3; 张红芳4
( 1.辽宁石油化工大学 石油与天然气工程学院，辽宁 抚顺113001；2.中国石油工程设计有限责任公司 西南分公司，四川 成都610041；3.中国石油新疆油田公司采油二厂，新疆 克拉玛依8340003； 4.中国石油新疆油田公司油气储运分公司，新疆 克拉玛依834000)
Author(s):
ZHANG Yi-nan1;  MA Gui-yang1;  ZHOU Wei2;  WANG Lei3;  ZHANG Hong-fang4
(1. College of Petroleum and Natural Gas Engineering, Liaoning University of Petroleum & Chemical Technology (Liaoning Shihua University), Fushun Liaoning 113001, China; 2. China Petroleum Engineering Co.,Ltd. Southwest Company,Chengdu Sichuan 610041, Ch
关键词:
土体沉降; 埋地管道; 管道应力; 跨越结构; 数值计算
Keywords:
soil mass settlement;  buried pipeline;  stress of pipeline;  crossover structure;  numerical calculation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.08.018
文献标志码:
A
摘要:
为了更好地保障长输管道的安全稳定运行，针对长输管道当中的跨越结构进行了应力分析与计算。基于管道跨越结构其结构的特殊性，极容易受到断层、土体塌陷等地质灾害的影响。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30°、40°、50°、60°跨越结构和不同范围土体发生沉降时，管道的应力变化情况。结果显示，当跨越结构中斜管段的角度确定后，便可计算出相应的安全沉降长度；当斜管段角度为50°时，沉降长度控制在13.6m以内，可保证跨越结构不发生塑性变形。通过研究为管道跨越段的安全设计提供了理论依据，该方法可应用在类似的管道跨越结构的应力设计当中。
Abstract:
To better protect the safe and stable operation of long-distance pipeline, the stress on crossover structure of long-distance pipeline was analyzed and calculated. Based on the particularity of its structure, the crossover structure is extremely vulnerable to fault, soil collapse and other geological disasters. Therefore a finite element mechanical model of interactions between the pipeline and soil in the crossover segments of buried pipelines was established, and a detailed analysis on the stress changes of pipeline was conducted when the crossover structure adopted 30, 40, 50 and 60 degrees respectively and the settlement occurred in different range of soil mass. The results showed that the corresponding safe settlement length can be calculated when the angle of inclined pipeline in crossover structures is determined. The settlement length can be controlled within 13.6m, and the plastic deformation will not happen in crossover structures when the angle of inclined pipeline is 50°. It provides a theoretical basis for the safety design of the crossover segment on the buried pipeline, and the method can be applied in the stress design of pipeline with similar crossover structure.

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备注/Memo

备注/Memo:
辽宁省高等学校优秀人才支持计划项目（LR2013016）
更新日期/Last Update: 2015-09-06