泥石流作用下埋地管道的可靠度分析
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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。
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.
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.
引文
[1] 张伯君.山体滑坡区域内长输埋地油气管道强度研究[D].浙江大学,2013.ZHANG Bojun.Research on Strength Behavior of Long-distance Buried Pipe for Oil and Gas Transportation in the Landslide Area[D].Hangzhou:Zhejiang University,2013.(in Chinese)
[2] 苏培东,罗倩,姚安林,等.西气东输管道沿线地质灾害特征研究[J].地质灾害与环境保护,2009,20(2):25-28.SU Peidong,LUO Qian,YAO Anling,et al.Study on the characters of geological hazards along west-east gas transportation pipeline [J].Journal of Geological Hazards and Environment Preservation,2009,20(2):25-28.(in Chinese)
[3] Sergey Chernomorets.Measuring the internal velocity of debris flows using impact pressure detecting in the flum experiment[J].Journal of Mountain Science,2011(8):109-116.
[4] Christian Scheidl,Michael Chiari,and Roland Kaitna,et al.Analysing debris-flow impact model,based on a small scale modeling approach[J].Surveys in Geophysics,2012(12):199-204.
[5] 刘雷激,魏华.泥石流冲击力研究[J].四川联合大学学报(工程科学版),1997(2):101-104.LIU Leiji,WEI Hua.Study of impace of debris flow [J].Journal of Sihcuan Union University (engineering science edition),1997(2):101-104.(in Chinese)
[6] 何思明,吴永,沈均.泥石流大石块冲击力的简化计算[J].自然灾害学报,2009,18(5):51-56.HE Siming,WU Yong,SHEN Jun.Simplified calculation of impact force of massive stone in debris flow [J].Journal of Natural Disasters,2009,18(5):51-56.(in Chinese)
[7] 王小梅.地质灾害作用下X80钢质管道应变设计研究[D].中国石油大学(华东),2014.WANG Xiaomei.The Strain Based Design of X80 Steel Pipeline under Geological Disasters[D].Qingdao:China University of Petroleum,2014.(in Chinese)
[8] Yuan,Feng.Wang,Lizhong.Guo,Zhen,and Xie,Yonggui,et al.Analytical model for landslide or debris flow impact on pipelines-Part I:surface pipelines [J].Applied Ocean Research,2011(35):95-104.
[9] Yuan,Feng.Wang,Lizhong.Guo,Zhen.and Xie,Yonggui.A refined analytical model for landslide or debris flow impact on pipelines-Part II Embedded pipelines [J].Applied Ocean Research,2012(35):105-114.
[10] Kunert H.G,Otegui J.L,and Marquez A.Nonlinear FEM strategies for modeling pipe-soil interaction[J].Engineering Failure Analysis,2012(24):46–56.
[11] 帅健,王晓霖,叶远锡,等.地面占压荷载作用下的管道应力分析[J].中国石油大学学报(自然科学版),2009,33(02):99-103+108.SHUAI Jian,WANG Xiaolin,YE Yuanxi,et al.Stress analysis of pipe line subject to surface load[J].Journal of China University of Petroleum,2009,33(02):99-103+108.(in Chinese)
[12] 吴小刚,张土乔,宋洁人,等.管道受随机荷载作用的损伤概率方法初探[J].水利水电技术,2004,35(10):64-66.WU Xiaogang,ZHANG Tuqiao,SONG Jieren,et al.Method on damage probability of pipelines under random traffic loads [J].Water Resources and Hydropower Engineering,2004,35(10):64-66.(in Chinese)
[13] 吴小刚,张土乔,张仪萍.等.基于损伤累积模型的交通荷载下管道剩余寿命的可靠度分析方法初探[J].水利水电技术,2004,35(2):66-67.WU Xiaogang,ZHANG Tuqiao,ZHANG Yiping,et al.Methods of reliability analysis on remaining life of pipe based on cumulative damage model under traffic load [J].Water Resources and Hydropower Engineering,2004,35(2):66-67.(in Chinese)
[14] 徐涛龙,曾祥国,姚安林,等.夯击载荷作用下埋地输气管道的可靠度分析[J].四川大学学报(工程科学版),2012,44(S2):96-100.XU Taolong,ZENG Xiangguo,YAO Anlin,et al.Reliability analysis of buried gas pipeline under ramming impact loading [J].Journal of Sichuan University (Engineering Science Edition),2012,44(S2):96-100.(in Chinese)
[15] 廖公云,黄晓明.ABAQUS有限元软件在道路工程中的应用[M].南京:东南大学出版社,2008:137-139.LIAO Gongyun.,HUANG Xiaoming.Application of ABAQUS Finite Element Software in Road Engineering[M].Nanjing:Southeast University Press,2008.(in Chinese)
[16] 赵师平,曾祥国,姚安林,等.第三方载荷作用下埋地输气管道动力响应的数值模拟[J].四川建筑科学研究,2009,35(01):134 -139.ZHAO Shiping,ZENG Xiangguo,YAO Anlin,et al.Dynamic response numerical simulation of buried gas pipeline during third-party interference [J].Sichuan Building Science,2009,35(01):134-139.(in Chinese)
[17] Hill,R.On discontinuous plastic states,with special reference to localized necking in thin sheets[J].Journal of the Mechanics and Physics of Solids,1952,1(1):19-30.
[18] DZT 0239-2004泥石流灾害防治工程设计规范[S].北京:地质出版社,2004.DZ/T0239-2004.Debris Flow Disaster Prevention Engineering Design Specifications[S].Beijing:Geological Publishing House,2004.(in Chinese)
[19] 康志成,崔鹏,韦方强,等.中国科学院东川泥石流观测研究站观测实验资料集(1995-2000)[M].北京市:科学出版社,2007.KANG Zhicheng,CUI Peng,WEI Fangqiang,et al.Data Collection Dong Chun Flow Observation and Research Station Chiese Academy of Sciences (1995-2000)[M].Beijing:Science Press,2007.(in Chinese)
[20] 张洪才.应力-强度干涉模型的可靠度计算方法的研究[J].机械设计,2001,6(6):45-47.ZHANG Hongcai.Study the reliability calculation method of stress-strength interference model[J].Machine Design,2001,6(6):45-47.(in Chinese)
[21] 包洪兵,姚卫星.考虑模型性不确定性的应力-强度干涉模型[J].力学学报,2008,40(6):834-839.BAO Hongbing,YAO Weixing.Stress-strength interference model including model uncertainty[J].Chinese Journal of Theoretical and Applied Mechanics,2008,40 (6):834-838.(in Chinese)
[22] 杨忠清,钱祖钰,张霄文.应力极值分布、强度威布尔分布的可靠性[J].南京航空航天大学学报,1991,23(2):27-31.YANG Zhongqing,QIAN Zuyu,ZHANG Xiaowen.Reliability of extreme value distributed stress and weibull distributed strength[J].Journal of Nanjing University of Aeronautics &Astronautics,1991,23(2):27-31.(in Chinese)
[23] 张伟福,高建忠,王长安,等.川气东送管道工程用国产X70钢级直缝埋弧焊管的性能分析[J].钢管,2011(2):50-53.ZHANG Weifu,GAO Jianzhong,WANG Changan,et al.Performance analysis of home-made X70 SAWL pipes used for Sichuan-East natural gas pipeline project[J].Steel Pipe,2011(2):50-53.(in Chinese)
[24] 陈胜军.基于MATLAB的可靠度快速算法[J].机械设计,2007(5):47-49.CHEN Shengjun.Rapid algorithm of reliability based on MATLAB[J].Journal of Machine Design,2007(5):47-49.(in Chinese)
[2] 苏培东,罗倩,姚安林,等.西气东输管道沿线地质灾害特征研究[J].地质灾害与环境保护,2009,20(2):25-28.SU Peidong,LUO Qian,YAO Anling,et al.Study on the characters of geological hazards along west-east gas transportation pipeline [J].Journal of Geological Hazards and Environment Preservation,2009,20(2):25-28.(in Chinese)
[3] Sergey Chernomorets.Measuring the internal velocity of debris flows using impact pressure detecting in the flum experiment[J].Journal of Mountain Science,2011(8):109-116.
[4] Christian Scheidl,Michael Chiari,and Roland Kaitna,et al.Analysing debris-flow impact model,based on a small scale modeling approach[J].Surveys in Geophysics,2012(12):199-204.
[5] 刘雷激,魏华.泥石流冲击力研究[J].四川联合大学学报(工程科学版),1997(2):101-104.LIU Leiji,WEI Hua.Study of impace of debris flow [J].Journal of Sihcuan Union University (engineering science edition),1997(2):101-104.(in Chinese)
[6] 何思明,吴永,沈均.泥石流大石块冲击力的简化计算[J].自然灾害学报,2009,18(5):51-56.HE Siming,WU Yong,SHEN Jun.Simplified calculation of impact force of massive stone in debris flow [J].Journal of Natural Disasters,2009,18(5):51-56.(in Chinese)
[7] 王小梅.地质灾害作用下X80钢质管道应变设计研究[D].中国石油大学(华东),2014.WANG Xiaomei.The Strain Based Design of X80 Steel Pipeline under Geological Disasters[D].Qingdao:China University of Petroleum,2014.(in Chinese)
[8] Yuan,Feng.Wang,Lizhong.Guo,Zhen,and Xie,Yonggui,et al.Analytical model for landslide or debris flow impact on pipelines-Part I:surface pipelines [J].Applied Ocean Research,2011(35):95-104.
[9] Yuan,Feng.Wang,Lizhong.Guo,Zhen.and Xie,Yonggui.A refined analytical model for landslide or debris flow impact on pipelines-Part II Embedded pipelines [J].Applied Ocean Research,2012(35):105-114.
[10] Kunert H.G,Otegui J.L,and Marquez A.Nonlinear FEM strategies for modeling pipe-soil interaction[J].Engineering Failure Analysis,2012(24):46–56.
[11] 帅健,王晓霖,叶远锡,等.地面占压荷载作用下的管道应力分析[J].中国石油大学学报(自然科学版),2009,33(02):99-103+108.SHUAI Jian,WANG Xiaolin,YE Yuanxi,et al.Stress analysis of pipe line subject to surface load[J].Journal of China University of Petroleum,2009,33(02):99-103+108.(in Chinese)
[12] 吴小刚,张土乔,宋洁人,等.管道受随机荷载作用的损伤概率方法初探[J].水利水电技术,2004,35(10):64-66.WU Xiaogang,ZHANG Tuqiao,SONG Jieren,et al.Method on damage probability of pipelines under random traffic loads [J].Water Resources and Hydropower Engineering,2004,35(10):64-66.(in Chinese)
[13] 吴小刚,张土乔,张仪萍.等.基于损伤累积模型的交通荷载下管道剩余寿命的可靠度分析方法初探[J].水利水电技术,2004,35(2):66-67.WU Xiaogang,ZHANG Tuqiao,ZHANG Yiping,et al.Methods of reliability analysis on remaining life of pipe based on cumulative damage model under traffic load [J].Water Resources and Hydropower Engineering,2004,35(2):66-67.(in Chinese)
[14] 徐涛龙,曾祥国,姚安林,等.夯击载荷作用下埋地输气管道的可靠度分析[J].四川大学学报(工程科学版),2012,44(S2):96-100.XU Taolong,ZENG Xiangguo,YAO Anlin,et al.Reliability analysis of buried gas pipeline under ramming impact loading [J].Journal of Sichuan University (Engineering Science Edition),2012,44(S2):96-100.(in Chinese)
[15] 廖公云,黄晓明.ABAQUS有限元软件在道路工程中的应用[M].南京:东南大学出版社,2008:137-139.LIAO Gongyun.,HUANG Xiaoming.Application of ABAQUS Finite Element Software in Road Engineering[M].Nanjing:Southeast University Press,2008.(in Chinese)
[16] 赵师平,曾祥国,姚安林,等.第三方载荷作用下埋地输气管道动力响应的数值模拟[J].四川建筑科学研究,2009,35(01):134 -139.ZHAO Shiping,ZENG Xiangguo,YAO Anlin,et al.Dynamic response numerical simulation of buried gas pipeline during third-party interference [J].Sichuan Building Science,2009,35(01):134-139.(in Chinese)
[17] Hill,R.On discontinuous plastic states,with special reference to localized necking in thin sheets[J].Journal of the Mechanics and Physics of Solids,1952,1(1):19-30.
[18] DZT 0239-2004泥石流灾害防治工程设计规范[S].北京:地质出版社,2004.DZ/T0239-2004.Debris Flow Disaster Prevention Engineering Design Specifications[S].Beijing:Geological Publishing House,2004.(in Chinese)
[19] 康志成,崔鹏,韦方强,等.中国科学院东川泥石流观测研究站观测实验资料集(1995-2000)[M].北京市:科学出版社,2007.KANG Zhicheng,CUI Peng,WEI Fangqiang,et al.Data Collection Dong Chun Flow Observation and Research Station Chiese Academy of Sciences (1995-2000)[M].Beijing:Science Press,2007.(in Chinese)
[20] 张洪才.应力-强度干涉模型的可靠度计算方法的研究[J].机械设计,2001,6(6):45-47.ZHANG Hongcai.Study the reliability calculation method of stress-strength interference model[J].Machine Design,2001,6(6):45-47.(in Chinese)
[21] 包洪兵,姚卫星.考虑模型性不确定性的应力-强度干涉模型[J].力学学报,2008,40(6):834-839.BAO Hongbing,YAO Weixing.Stress-strength interference model including model uncertainty[J].Chinese Journal of Theoretical and Applied Mechanics,2008,40 (6):834-838.(in Chinese)
[22] 杨忠清,钱祖钰,张霄文.应力极值分布、强度威布尔分布的可靠性[J].南京航空航天大学学报,1991,23(2):27-31.YANG Zhongqing,QIAN Zuyu,ZHANG Xiaowen.Reliability of extreme value distributed stress and weibull distributed strength[J].Journal of Nanjing University of Aeronautics &Astronautics,1991,23(2):27-31.(in Chinese)
[23] 张伟福,高建忠,王长安,等.川气东送管道工程用国产X70钢级直缝埋弧焊管的性能分析[J].钢管,2011(2):50-53.ZHANG Weifu,GAO Jianzhong,WANG Changan,et al.Performance analysis of home-made X70 SAWL pipes used for Sichuan-East natural gas pipeline project[J].Steel Pipe,2011(2):50-53.(in Chinese)
[24] 陈胜军.基于MATLAB的可靠度快速算法[J].机械设计,2007(5):47-49.CHEN Shengjun.Rapid algorithm of reliability based on MATLAB[J].Journal of Machine Design,2007(5):47-49.(in Chinese)
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