[1]伍颖,查四喜,金鹏威,等.泥石流作用下埋地管道的可靠度分析[J].自然灾害学报,2019,28(02):199-206.[doi:10.13577/j.jnd.2019.0222]
 WU Ying,ZHA Sixi,JIN Pengwei,et al.Reliability analysis of buried gas pipeline subject to debris flow[J].,2019,28(02):199-206.[doi:10.13577/j.jnd.2019.0222]
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泥石流作用下埋地管道的可靠度分析
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
28
期数:
2019年02期
页码:
199-206
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Reliability analysis of buried gas pipeline subject to debris flow
作者:
伍颖1 查四喜1 金鹏威2 豆利军3
1. 西南石油大学 土木工程与建筑学院, 四川 成都 610500;
2. 江西省宜春市铜鼓县水务局, 江西 宜春 336200;
3. 四川亚大塑料制品有限公司, 四川 成都 611830
Author(s):
WU Ying1 ZHA Sixi1 JIN Pengwei2 DOU Lijun3
1. School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu 610500, China;
2. Water Bureau of Tonggu County, Yichun 336200, China;
3. Sichuan Yada plastic products Co., Ltd. Chengdu 611830, China
关键词:
泥石流长输管道FEA应力-强度干涉模型MATLAB可靠度分析
Keywords:
debris flowlong distance pipelineFEAstress-strength interference modelMATLABreliability analysis
分类号:
TE88;X9;P642.23
DOI:
10.13577/j.jnd.2019.0222
摘要:
随着地质灾害和极端天气数量的增多,因泥石流引起的管道失效事故不断发生。将泥石流冲击速度作为随机变量,确定其分布规律。利用ABAQUS有限元软件,考虑管-土接触非线性,建立了泥石流-土-埋地管道的相互作用模型。计算不同流速泥石流冲击作用下埋地输气管道的最大应力,确定了最大等效应力的分布规律。最后结合管道强度的分布规律,运用应力-强度干涉模型的可靠度计算方法,采用MATLAB软件运用两种不同方法求得管道可靠度。研究对于埋地长输管道就泥石流灾害的预防具有重要的参考价值。
Abstract:
With the increasing number of geological disasters and extreme weather, the pipeline failure caused by debris flow is constantly occurring. According to relevant data, the velocity of debris flow was regard as a random variable, and its distribution was determined. Based on ABAQUS, considering the nonlinear contact between tube and soil, the interaction model among debris flow, soil and buried pipeline is established. Then, the maximum stress of buried gas pipelines subject to debris flow with different velocity was calculated. Consequently, the distribution of the maximum stress was determined. Finally, by means of the normal distribution of pipeline yield strength r taken from the related literature, the reliability of pipeline was evaluated by two different methods using MATLAB software. The research is of great reference value for the prevention of pipeline subject to debris flow.

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备注/Memo

备注/Memo:
收稿日期:2018-05-31;改回日期:2018-07-12。
基金项目:国家自然科学基金(50974105);国家安全生产监督管理总局安全生产重大事故防治关键技术科技项目(Sichuan-0016-2016AQ)
作者简介:伍颖(1983-),女,副教授,博士,主要从事油气储运可靠性方面的科研和教学工作.E-mail:wy_swpi@163.com
通讯作者:查四喜(1994-),男,硕士研究生,主要从事供热、供燃气、通风及空调工程方面的研究.E-mail:zsxswpu@foxmail.com
更新日期/Last Update: 1900-01-01