油气管道纵向穿越滑坡受力特征分析
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- 英文论文题名：Stress characteristic analysis of oil-gas pipeline traversing landslide longitudinally
- 论文作者：赵连 ; 辜利江 ; 康盛 ; 刘玉国
- 英文论文作者：Zhao lian ; Gu lijiang ; Kang sheng ; Liu yuguo ; China petroleum group engineering design co. ; LTD.Southwest branch
- 年：2016
- 作者机构：中国石油集团工程设计有限责任公司西南分公司;
- 论文关键词：油气管道 ; 纵向穿越 ; 滑坡 ; 受力特征
- 英文论文关键词：Oil-gas pipeline ; Traversing longitudinally ; Landslide ; Stress characteristic
- 会议召开时间：2016-08-26
- 会议录名称：石油天然气勘察技术中心站第二十二次技术交流会论文集
- 语种：中文
- 分类号：TE973.4
- 学会代码：ZJKC
- 会议名称：石油天然气勘察技术中心站第二十二次技术交流会
- 会议地点：中国河北廊坊
- 主办单位：中国建筑学会工程勘察分会、石油天然气勘察技术中心站
- 学会名称：中国建筑学会工程勘察分会
- 页数：9
- 文件大小：1485k
- 原文格式：D
- 会议级别：全国
摘要
分别在滑坡土体产生大位移塑性变形和弹性变形两种情况下对管道纵向穿越滑坡的位移和内力进行了理论公式推导,并结合工程实例加以计算,同时采用数值模拟方法进行分析验证,得出了在滑坡土体发生弹性变形条件下,管道位移、轴向应力和轴向应变均关于管道跨中处对称,管道跨中处位移最大,上部为拉应力,下部为压应力,两端处应力和应变均为最大值,而在考虑内压作用时管道Mises应力最大值出现在管道下端,得出管道下端最容易发生应力破坏。
According to the landslide soil produces large plastic deformation or elastic deformation, derive the theory calculation formulas of the pipeline's displacement and internal force respectively when oil-gas pipeline traverses landslide longitudinally, and then apply to engineering example, meanwhile carry out the numerical simulation method to verify the results reciprocally, come to the conclusion that, with the landslide soil producing elastic deformation, pipeline's displacement, axial stress and strain are symmetrical about the mid-span of the pipeline, the maximum displacement occurs at the mid-span, the tensile stress occurs at the upper part and the compressive stress occurs at the lower part, the maximum stress and strain both occurs at the ends of pipeline. The maximum Mises stress occurs at the bottom while the pipeline bear the internal pressure, so that the bottom of the pipeline is the most easily subjected to damaged.
According to the landslide soil produces large plastic deformation or elastic deformation, derive the theory calculation formulas of the pipeline's displacement and internal force respectively when oil-gas pipeline traverses landslide longitudinally, and then apply to engineering example, meanwhile carry out the numerical simulation method to verify the results reciprocally, come to the conclusion that, with the landslide soil producing elastic deformation, pipeline's displacement, axial stress and strain are symmetrical about the mid-span of the pipeline, the maximum displacement occurs at the mid-span, the tensile stress occurs at the upper part and the compressive stress occurs at the lower part, the maximum stress and strain both occurs at the ends of pipeline. The maximum Mises stress occurs at the bottom while the pipeline bear the internal pressure, so that the bottom of the pipeline is the most easily subjected to damaged.
引文
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[12]许小路,滑坡地区油气管线力学效应数值模拟分析[D],中国地质大学(北京),2015.[13][苏]П·П·勃洛达夫金,冯亮译.埋设管线[M].石油工业出版社,1980.1:78~163.
[2]林冬等.油气管道滑坡的分类.焊管[J].2009,32(12):66-68.
[3]Rajani.B.B.,Robertson.P.K.and Morgenstern.N.R.1995.Simplified design methods for pipelines subjected to transverse and longitudinal soil movements.Canadian Geotechnical Journal[C].No.32.309-323.
[4]Chan,Peter Doug Sing,M.Sc.,Soil-pipeline Interaction In Slopes[J]University of Calgary(Canada),2000.
[5]N.Challamel,P,de Buhan.Mixed modeling applied to soil-pipe intercation.Computers Geotechnics,2003.30:16-205.
[6]Seyed Abdolhamid Karimian.Response of buried steel Pipelines subjected to longitudinal and transverse ground movement[D].Vancouver:University of British Columbia,2006.
[7]张东臣,滑坡条件下埋地管道受力分析.石油规划设计[J].2001,6(1):1-5.
[8]王泸毅.输气管线在地质灾害中的力学行为研究[D].西北工业大学,2003.3.
[9]刘慧.滑坡作用下埋地管线反应分析[D].大连理工大学,2008.
[10]王磊,邓清禄.滑坡作用对输气管道危害的静力学分析[J].工程地质学报,2010.18卷增刊:340-345.
[11]林冬,雷宇,许可方,等.横向滑坡对管道的影响试验[J].石油学报,2011,32(4):728-732.
[12]许小路,滑坡地区油气管线力学效应数值模拟分析[D],中国地质大学(北京),2015.[13][苏]П·П·勃洛达夫金,冯亮译.埋设管线[M].石油工业出版社,1980.1:78~163.