|本期目录/Table of Contents|

[1]张鹏,姚正学.交通荷载作用下埋地含缺陷PE管道力学行为研究[J].中国安全生产科学技术,2020,16(1):25-31.[doi:10.11731/j.issn.1673-193x.2020.01.004]
　ZHANG Peng,YAO Zhengxue.Study on mechanical behavior of buried PE pipeline with defect under traffic load[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(1):25-31.[doi:10.11731/j.issn.1673-193x.2020.01.004]
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交通荷载作用下埋地含缺陷PE管道力学行为研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年1期
页码:
25-31
栏目:
学术论著
出版日期:
2020-01-30

文章信息/Info

Title:
Study on mechanical behavior of buried PE pipeline with defect under traffic load
文章编号:
1673-193X(2020)-01-0025-07
作者:
张鹏; 姚正学
(西南石油大学 土木工程与测绘学院，四川 成都 610500)
Author(s):
ZHANG Peng;  YAO Zhengxue
(College of Civil Engineering and Geomatics,Southwest Petroleum University,Chengdu Sichuan 610500,China)
关键词:
埋地管道; 缺陷; 管道应力; 有限元
Keywords:
buried pipeline;  defect; pipeline stress;  finite element
分类号:
X937;TU990.3
DOI:
10.11731/j.issn.1673-193x.2020.01.004
文献标志码:
A
摘要:
为分析埋地含缺陷PE管道在交通荷载作用下的力学行为，选用Prony级数模拟管道，并采用ABAQUS有限元软件建立不同缺陷PE80管道模型和不同埋深的管土模型。通过对管道轴向与环向应力的研究，确定不同条件下管道的应力大小与分布。结果表明：当管道存在缺陷时，缺陷处会出现应力突变；不同位置的缺陷对管道的应力分布影响不同；缺陷相对深度改变会使缺陷处应力变化明显，通过建立多元回归方程得出对缺陷管道最大Von Mises应力影响程度为，缺陷相对深度（Q）>管道埋深（H）>车辆荷载（P）。
Abstract:
In order to analyze the mechanical behavior of buried PE pipeline with defect under the traffic load,the pipeline was simulated by using Prony series,then the models of PE80 pipeline with different defects and the pipesoil models with different burial depths were built by using the ABAQUS finite element software.Through the research on axial stress and circumferential stress of the pipeline,the magnitude and distribution of the pipeline stress under different conditions were determined.The results showed that when there was a defect in the pipeline,the stress mutation would appear at the defect location.The defects at different locations had different influence on the stress distribution of pipeline.The change of the relative depth of defect would make the stress change at the defect location obvious.A multivariate regression equation was established,and the influence degree on the maximum Von Mises stress of the pipeline with defect was obtained as: the relative depth of defect (Q)>buried depth of pipeline (H)>vehicle load (P).

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2019-10-19
* 基金项目： 国家自然科学基金项目（50974105）；中国工程院重大咨询研究项目（2011-ZD-20）；高等学校博士学科点专项科研基金项目（20105121110003）
作者简介： 张鹏，博士，教授，主要研究方向为管道风险评价、完整性管理及结构可靠性技术研究等。
通信作者： 姚正学，硕士研究生，主要研究方向为油气管道安全风险评价。
更新日期/Last Update: 2020-03-02