地下管线-土非一致激励振动台试验研究
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摘要
地下管线的非一致激励振动台试验研究在国内外还属于空白。通过设置在两个振动台上的层装剪切箱,埋入钢制管道,输入合成相干地震波,进行了埋地钢管管土相互作用非一致激励振动台模型试验研究,探讨了非一致地震激励下的埋地管线-土的反应规律及发展变化过程。试验数据分析表明:(1)非一致激励输入的结构反应大于对应一致输入下的结构反应;(2)管土接触面不同点处的破坏发展是不同步的;(3)土体的相对位移是影响管体应变的直接因素(4)随输入振幅的增大,管土的振动形态出现很大差别。
The experimental research on the underground oil and gas pipes subjected to non-uniform earthquake wave excitation is still vacant at present.With two layered-equipped shear boxes set on two shaking tables respectively,this paper,by inputting intervening seismic waves,studies the interaction between the steel pipes embedded in the boxes and their surrounding soil.Based on the data from the experiment,both the damage mechanism of the pipes and the soil in the boxes and the whole damage evolution process are discussed.The following results can be concluded:(1)The responses of pipe subjected to non-uniform earthquake wave excitation is bigger than that subjected to uniform earthquake wave excitation.(2)The failure of pipe-soil interface develops from outside to inside and isn′t isochronous.(3)Soil displacement difference is the direct facfor affectiong the pipe strain value.(4)The acceleration of pipe can not be assumed to be the same as surrounding soil under increasing non-uniform earthquake excitation.
The experimental research on the underground oil and gas pipes subjected to non-uniform earthquake wave excitation is still vacant at present.With two layered-equipped shear boxes set on two shaking tables respectively,this paper,by inputting intervening seismic waves,studies the interaction between the steel pipes embedded in the boxes and their surrounding soil.Based on the data from the experiment,both the damage mechanism of the pipes and the soil in the boxes and the whole damage evolution process are discussed.The following results can be concluded:(1)The responses of pipe subjected to non-uniform earthquake wave excitation is bigger than that subjected to uniform earthquake wave excitation.(2)The failure of pipe-soil interface develops from outside to inside and isn′t isochronous.(3)Soil displacement difference is the direct facfor affectiong the pipe strain value.(4)The acceleration of pipe can not be assumed to be the same as surrounding soil under increasing non-uniform earthquake excitation.
引文
[1]SY/T0450-2004.输油(气)钢质管道抗震设计规范[S].石油工业出版社,2004.(SY/T0450-2004.Code for seismic design of oil and gas steel pipeline[S].Oil Industry Publishing House,2004.(in Chi-nese))
[2]候忠良,王筠.我国地下管线抗震研究进展[J].冶金工业部建筑研究总院院刊.1997-3.4:60-66.(HOU Zhongliang,WANG Jun.Research progress ofburied pipeline[J].Journal of Building Reseach Insti-tute,Ministry of Metallurgical Industry.1997-3.4:60-66.(in Chinese))
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[6]徐志英,施善云.土与地下结构动力相互作用的大型振动台试验与计算[J].岩土工程学报,1993,(4):1-7.(XUZhiyun,SHI Shanyun.Shaking Table Test ofSoil-underground structure dynamic interaction[J].Chinese Journal of Geotechnical Engineering.1993,(4):1-7.(in Chinese))
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[8]林皋,朱彤,林蓓.结构动力模型试验的相似设计[J].大连理工大学学报,2000,40(1):1-8.(LIN Gao,ZHU Tong,LIN Bei.A scale modelingmethod ofstructure dynamic model test[J].Journal ofDalian University of S&T,2000,40(1):1-8.(inChinese))
[9]吕西林,陈跃庆.结构-地基相互作用体系的动力相似关系研究[J].地震工程与工程振动.2001,21(3):85-92.(LV Xilin,CHEN Yueqing.Study on dy-namic similitude theory of soil-structure interactionsystem[J].Journal of Earthquake Engineering and En-gineering Vibration,2001,21(3):85-92.(in Chi-nese))
[10]屈铁军,王君杰,王前信.空间变化的地震动功率谱的实用模型[J].地震学报,1996,18(1):55-62.(QU Tiejun,WANG Junjie,WANG Qianxin.Appliedmodel of spatial change power spectrum[J],Earthquakejournal,1996,18(1):55-62.(in Chinese))
[11]李杰,李国强.地震工程学导论[M].地震出版社,2005.(LI Jie,LI Guoqiang.Introduction of earthquakeengineering[M].Earthquake Press,2005.(in Chi-nese))
[12]殷宗泽,朱泓等.土与结构材料接触面的变形及其数学模拟[J].岩土工程学报,1994,16(3):14-22.(YIN Zongze,ZHU Hong.Numerical Simulation ofthe Deformation in the Interface between Soil and Struc-tural Material[J].Chinese Journal of Geotechnical En-gineering,1994,16(3):14-22.(in Chinese))
[13]Harichandran R,Vanmareke E,1986.Stochastic vari-ation of earthquake ground motion in space and time,ASCE,J.EM.112(2):154-174.
[14]Xiaojun SHI,Huayong WU,Jun CHEN and Jie LI,Design of laminar shear box with openings for shakingtable test and experimental verification,pp.798-806,Proceedings of the International Symposium on Innova-tion&Sustainability of Structures in Civil Engineering,Nov.28-30,2007,Shanghai,China.
[2]候忠良,王筠.我国地下管线抗震研究进展[J].冶金工业部建筑研究总院院刊.1997-3.4:60-66.(HOU Zhongliang,WANG Jun.Research progress ofburied pipeline[J].Journal of Building Reseach Insti-tute,Ministry of Metallurgical Industry.1997-3.4:60-66.(in Chinese))
[3]李杰.生命线工程抗震——基础理论与应用[M].北京:科学出版社.2005.1.(LI Jie.Lifeline engineer-ing-basic theory and application[M].Beijing:SciencePublisher,2005.1.(in Chinese))
[4]陈国兴,庄海洋等.土-地铁隧道动力相互作用的大型振动台试验:试验方案设计[J].地震工程与工程振动,2006,26(6):178-183.(CHEN Guoxing,ZHUANG Haiyang.Alarge-scale shaking table test fordynamic soil-metro tunnel interaction:Analysis of testresults[J].Journal of Earthquake Engineering And En-gineering Vibration,2006,26(6):178-183.(inChinese))
[5]季倩倩.地铁车站结构振动台试验研究[D].上海:同济大学,2002.(JI Qianqian.Shaking table test ofsubway station[D].Shanghai:Tongji University.(inChinese))
[6]徐志英,施善云.土与地下结构动力相互作用的大型振动台试验与计算[J].岩土工程学报,1993,(4):1-7.(XUZhiyun,SHI Shanyun.Shaking Table Test ofSoil-underground structure dynamic interaction[J].Chinese Journal of Geotechnical Engineering.1993,(4):1-7.(in Chinese))
[7]凌贤长,王臣.液化场地桩-土桥梁结构动力相互作用振动台试验模型相似设计方法[J].岩石力学与工程学报,2004,23(3):450-456.(LING Xian-chang,WANG Chen.Scale modeling method of shakingtable test of dynamic interaction of pile-soil-bridgestructure in ground of soil liquefaction[J]Chinese Jour-nal of Rock Mechanics and Engineering.2004,23(3):450-456.(in Chinese))
[8]林皋,朱彤,林蓓.结构动力模型试验的相似设计[J].大连理工大学学报,2000,40(1):1-8.(LIN Gao,ZHU Tong,LIN Bei.A scale modelingmethod ofstructure dynamic model test[J].Journal ofDalian University of S&T,2000,40(1):1-8.(inChinese))
[9]吕西林,陈跃庆.结构-地基相互作用体系的动力相似关系研究[J].地震工程与工程振动.2001,21(3):85-92.(LV Xilin,CHEN Yueqing.Study on dy-namic similitude theory of soil-structure interactionsystem[J].Journal of Earthquake Engineering and En-gineering Vibration,2001,21(3):85-92.(in Chi-nese))
[10]屈铁军,王君杰,王前信.空间变化的地震动功率谱的实用模型[J].地震学报,1996,18(1):55-62.(QU Tiejun,WANG Junjie,WANG Qianxin.Appliedmodel of spatial change power spectrum[J],Earthquakejournal,1996,18(1):55-62.(in Chinese))
[11]李杰,李国强.地震工程学导论[M].地震出版社,2005.(LI Jie,LI Guoqiang.Introduction of earthquakeengineering[M].Earthquake Press,2005.(in Chi-nese))
[12]殷宗泽,朱泓等.土与结构材料接触面的变形及其数学模拟[J].岩土工程学报,1994,16(3):14-22.(YIN Zongze,ZHU Hong.Numerical Simulation ofthe Deformation in the Interface between Soil and Struc-tural Material[J].Chinese Journal of Geotechnical En-gineering,1994,16(3):14-22.(in Chinese))
[13]Harichandran R,Vanmareke E,1986.Stochastic vari-ation of earthquake ground motion in space and time,ASCE,J.EM.112(2):154-174.
[14]Xiaojun SHI,Huayong WU,Jun CHEN and Jie LI,Design of laminar shear box with openings for shakingtable test and experimental verification,pp.798-806,Proceedings of the International Symposium on Innova-tion&Sustainability of Structures in Civil Engineering,Nov.28-30,2007,Shanghai,China.
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