试压工况下盾构隧道内输气管道应力分析
|
摘要
目前输气管道的应力分析主要针对普通埋设管道,对隧道内的输气管道(尤其是在试压工况下)的应力分析还比较少,一般情况下管道试压压力大于运行压力。因此,有必要分析试压工况下穿越输气管道的应力分布情况。为此,采用CAESARⅡ建立了试压工况下XX竖井盾构隧道穿越管道的应力分析模型,得到了穿越管道的应力分布情况,确定了应力关键点,校核了管道强度,通过实例分析发现管道应力的最大值在管道的弯管处。一次应力、二次应力和管道自重引起的应力对比分析结果表明,在试压压力较高的情况下,内压是产生管道应力的主要因素,而温度、管道自重对管道应力的影响很小。最后建议:在穿越管道的设计中应进行试压工况下的应力分析,以便找出应力集中点,采取相应的工程措施,保证穿越管道的安全运行。
Stress analysis has rarely been conducted of gas pipelines through shield tunnels especially under pressure testing conditions.In general,the testing pressure is higher than the operating pressure so it is quite necessary for the operators to analyze the distribution of pressure on the gas pipeline through shield tunnels under such conditions.In view of this,the integraph CAESAR Ⅱ software was adopted to build a stress analysis model for a case study of XX silo shield tunnel.On this basis,the stress distribution was clearly shown;the stress key points were determined;the strength of the pipe was checked;and the maximum value of stress was found on the gas pipe elbows.Moreover,the primary stress,the secondary stress,and the self-weight stress were comparatively analyzed to demonstrate that under higher testing pressure,the internal pressure is the main factor inducing the pipe stress while both temperature and the self weight of the pipe have little impact on the pipe stress.In the end,this paper suggests that stress analysis especially under pressure testing conditions should be done in the design of tunnel-through pipelines;in this way,the stress concentration position will be so easily found out that corresponding engineering measures should be taken to ensure safe operation of tunnel-through pipelines.
Stress analysis has rarely been conducted of gas pipelines through shield tunnels especially under pressure testing conditions.In general,the testing pressure is higher than the operating pressure so it is quite necessary for the operators to analyze the distribution of pressure on the gas pipeline through shield tunnels under such conditions.In view of this,the integraph CAESAR Ⅱ software was adopted to build a stress analysis model for a case study of XX silo shield tunnel.On this basis,the stress distribution was clearly shown;the stress key points were determined;the strength of the pipe was checked;and the maximum value of stress was found on the gas pipe elbows.Moreover,the primary stress,the secondary stress,and the self-weight stress were comparatively analyzed to demonstrate that under higher testing pressure,the internal pressure is the main factor inducing the pipe stress while both temperature and the self weight of the pipe have little impact on the pipe stress.In the end,this paper suggests that stress analysis especially under pressure testing conditions should be done in the design of tunnel-through pipelines;in this way,the stress concentration position will be so easily found out that corresponding engineering measures should be taken to ensure safe operation of tunnel-through pipelines.
引文
[1]岳进才.压力管道技术[M].北京:中国石化出版社,2006.YUE Jincai.The technology of pressure pipeline[M].Bei-jing:China Petrochemical Press,2006.
[2]向勇.西气东输中卫黄河隧道设计[J].石油工程建设,2011,37(3):51-57.XIANG Yong.Tunnel design of Huanghe Zhongwei atWest-East Gas Transmission[J].Petroleum EngineeringConstruction,2011,37(3):51-57.
[3]彭星煜,梁光川,张鹏,等.人工爆破地震作用下输气管道动力响应分析[J].天然气工业,2012,32(11):81-84.PENG Xingyu,LIANG Guangchuan,ZHANG Peng,et al.Dynamic response for buried gas pipelines under artificial ex-plosion[J].Natural Gas Industry,2012,32(11):81-84.
[4]唐永进.压力管道应力分析[M].2版.北京:中国石化出版社,2007.TANG Yongjin.Analysis of penstock[M].2nd Edition.Bei-jing:China Petrochemical Press,2007.
[5]于浦义,张德姜,唐永进,等.石油化工压力管道设计手册[M].北京:化学工业出版社,2010.YU Puyi,ZHANG Dejiang,TANG Yongjin,et al.Petro-leum chemical pressure piping design manual[M].Beijing:Chemical Industry Press,2010.
[6]隋之锋.输气管道特殊管段应力分析及安全性研究[D].北京:中国石油大学,2009.SUI Zhifeng.The stress analysis of special pipe section andsafety study of the gas pipeline[D].Beijing:China Univer-sity of Petroleum,2009.
[7]中华人民共和国城乡住房建设部.GB50251—2003输气管道工程设计规范[S].北京:石油工业出版社,2004.Ministry of Housing and Urbon-Rural Development of thePeople's Republic of China.GB 50251-2003Gas pipeline en-gineering design specifications[S].Beijing:Petroleum In-dustry Press,2004.
[8]AMSE.AMSE B31.8输气和配气管线系统管道标准[S].北京:石油工业出版社,2004.American Society of Mechanical Engineers.AMSE B31.8Gas transmission and distribution piping systems[S].Bei-jing:Petroleum Industry Press,2004.
[9]中华人民共和国城乡住房建设部.GB50423—2007油气输送管道穿越工程设计规范[S].北京:石油工业出版社,2008.Ministry of Housing and Urban-Rural Development of thePeople's Republic of China.GB 50423-2007 Oil and gaspipeline through engineering design specifications[S].Bei-jing:Petroleum Industry Press,2008.
[10]郎需庆,赵志勇,宫宏,等.油气管道事故统计分析与安全运行对策[J].安全、健康和环境,2006,6(10):15-17.LANG Xuqing,ZHAO Zhiyong,GONG Hong,et al.Ac-cidents statistical analysis and safety operation measuresof the oil-gas pipeline[J].Safety,Health and Environ-ment,2006,6(10):15-17.
[11]蔡思维.结构力学的矩阵方法[M].北京:科学出版社,1975.CAI Siwei.Structural mechanics matrix method[M].Bei-jing:Science Press,1975.
[12]王坚白.超静定结构力学[M].北京:水利电力出版社,1970.WANG Jianbai.Statically indeterminate structure me-chanics[M].Beijing:Water Conservancy Power Press,1970.
[13]赵祖武.塑性理论基础[M].北京:人民教育出版社,1963.ZHAO Zuwu.Foundation of plasticity theory[M].Bei-jing:People's Education Press,1963.
[14]袁晓鹏,高翔.管道应力分析软件在工程中的应用[J].燃料与化工,2005,36(5):5-6.YUAN Xiaopeng,GAO Xiang.Piping stress analysissoftware in the application in the engineering[J].Fuelsand Chemical,2005,36(5):5-6.
[15]刘亚江.CAESARII管道应力分析理论[J].管道计算与设备,2003,6(2):6-9.LIU Yajiang.The theory of CAESAR II piping stress analysis[J].Pipe Calculation and Equipment,2003,6(2):6-9.
[2]向勇.西气东输中卫黄河隧道设计[J].石油工程建设,2011,37(3):51-57.XIANG Yong.Tunnel design of Huanghe Zhongwei atWest-East Gas Transmission[J].Petroleum EngineeringConstruction,2011,37(3):51-57.
[3]彭星煜,梁光川,张鹏,等.人工爆破地震作用下输气管道动力响应分析[J].天然气工业,2012,32(11):81-84.PENG Xingyu,LIANG Guangchuan,ZHANG Peng,et al.Dynamic response for buried gas pipelines under artificial ex-plosion[J].Natural Gas Industry,2012,32(11):81-84.
[4]唐永进.压力管道应力分析[M].2版.北京:中国石化出版社,2007.TANG Yongjin.Analysis of penstock[M].2nd Edition.Bei-jing:China Petrochemical Press,2007.
[5]于浦义,张德姜,唐永进,等.石油化工压力管道设计手册[M].北京:化学工业出版社,2010.YU Puyi,ZHANG Dejiang,TANG Yongjin,et al.Petro-leum chemical pressure piping design manual[M].Beijing:Chemical Industry Press,2010.
[6]隋之锋.输气管道特殊管段应力分析及安全性研究[D].北京:中国石油大学,2009.SUI Zhifeng.The stress analysis of special pipe section andsafety study of the gas pipeline[D].Beijing:China Univer-sity of Petroleum,2009.
[7]中华人民共和国城乡住房建设部.GB50251—2003输气管道工程设计规范[S].北京:石油工业出版社,2004.Ministry of Housing and Urbon-Rural Development of thePeople's Republic of China.GB 50251-2003Gas pipeline en-gineering design specifications[S].Beijing:Petroleum In-dustry Press,2004.
[8]AMSE.AMSE B31.8输气和配气管线系统管道标准[S].北京:石油工业出版社,2004.American Society of Mechanical Engineers.AMSE B31.8Gas transmission and distribution piping systems[S].Bei-jing:Petroleum Industry Press,2004.
[9]中华人民共和国城乡住房建设部.GB50423—2007油气输送管道穿越工程设计规范[S].北京:石油工业出版社,2008.Ministry of Housing and Urban-Rural Development of thePeople's Republic of China.GB 50423-2007 Oil and gaspipeline through engineering design specifications[S].Bei-jing:Petroleum Industry Press,2008.
[10]郎需庆,赵志勇,宫宏,等.油气管道事故统计分析与安全运行对策[J].安全、健康和环境,2006,6(10):15-17.LANG Xuqing,ZHAO Zhiyong,GONG Hong,et al.Ac-cidents statistical analysis and safety operation measuresof the oil-gas pipeline[J].Safety,Health and Environ-ment,2006,6(10):15-17.
[11]蔡思维.结构力学的矩阵方法[M].北京:科学出版社,1975.CAI Siwei.Structural mechanics matrix method[M].Bei-jing:Science Press,1975.
[12]王坚白.超静定结构力学[M].北京:水利电力出版社,1970.WANG Jianbai.Statically indeterminate structure me-chanics[M].Beijing:Water Conservancy Power Press,1970.
[13]赵祖武.塑性理论基础[M].北京:人民教育出版社,1963.ZHAO Zuwu.Foundation of plasticity theory[M].Bei-jing:People's Education Press,1963.
[14]袁晓鹏,高翔.管道应力分析软件在工程中的应用[J].燃料与化工,2005,36(5):5-6.YUAN Xiaopeng,GAO Xiang.Piping stress analysissoftware in the application in the engineering[J].Fuelsand Chemical,2005,36(5):5-6.
[15]刘亚江.CAESARII管道应力分析理论[J].管道计算与设备,2003,6(2):6-9.LIU Yajiang.The theory of CAESAR II piping stress analysis[J].Pipe Calculation and Equipment,2003,6(2):6-9.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心