基于整体风险分析法的地震荷载作用下地下管道易损性评估
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摘要
地下管道的易损性评价是生命线地震工程风险评价体系的重要研究内容.基于整体风险分析法构建地下管道评估模型,进行致灾因子筛选,建立管道风险评估图,最终获得地震荷载作用下地下管道易损性估计值的计算公式.并对海城及丽江地震中的地下管道进行实例验证,评价结果与实际情况有较好的一致性,能有效地解决地震中地下管道易损性的综合评价问题.
The vulnerability assessment of underground pipelines is significant for risk assessment system of lifeline anti-seismic engineering.Established an assessment model as a catastrophic factor sieving tool based on the holistic risk analysis approach and the pipeline risk assessment diagram as well,and combining with statistics-based forecasting tools,obtained a underground pipeline vulnerability estimating cacutation formula under the seismic loads.The proposed model was preliminarily verified by the pipeline behaviors checked in Haicheng and Lijiang earthquakes.And the study results were in good agreement with the fact.It may scientifically offer suggestion to government for disaster relief.
The vulnerability assessment of underground pipelines is significant for risk assessment system of lifeline anti-seismic engineering.Established an assessment model as a catastrophic factor sieving tool based on the holistic risk analysis approach and the pipeline risk assessment diagram as well,and combining with statistics-based forecasting tools,obtained a underground pipeline vulnerability estimating cacutation formula under the seismic loads.The proposed model was preliminarily verified by the pipeline behaviors checked in Haicheng and Lijiang earthquakes.And the study results were in good agreement with the fact.It may scientifically offer suggestion to government for disaster relief.
引文
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[10]谢振福,陈起鸿.海口市地下管线的可能震害分析及抗震对策[J].工程抗震与加固改造,2007,29(4):100-104.Xie Zhenfu,Chen Qihong.Potential seismic damage analysis andcountermeasures of the underground pipelines in haikou[J].Earthquake Resistant Engineering and Retrofitting,2007,29(4):100-104.
[2]苗崇刚,胡永龙,周光全,等.云南宁洱6.4级地震应急行动及灾害特征[J].国际地震动态,2007,342(6):5-11.Miao Conggang,Hu Yonglong,Zhou Guangquan,et al.The e-mergency action and disaster characters of Ning′er Ms 6.4 earth-quake in Yunnan[J].Recent Developments in World Seismolo-gy,2007,342(6):5-11.
[3]侯建盛,苗崇刚,李成日,等.2003年中国大陆震害述评[J].自然灾害学报,2004,13(3):24-29.Hou Jiansheng,Miao Conggang,Li Chengri,et al.Review onearthquake disasters in chinese mainland in 2003[J].Journal ofNatural Disasters,2004,13(3):24-29.
[4]汤爱平,欧进萍.城镇埋地管网震害特征与破坏机理[J].地震工程与工程振动,2002,22(4):120-126.Tang Aiping,Ou Jinping.Damage mechanism of city buriedPipelines during earthquake and smart monitoring system basedon GIS[J].Earthquake Engineering and Engineering Vibration,2002,22(4):120-126.
[5]Allouche E N,Bowman A L.Holistic approach for assessing thevulnerability of buried pipelines to earthquake loads[J].NaturalHazards Review,2006,1(12):12-18.
[6]郭恩栋,余世舟,吴伟.地下管道工程震害分析[J].地震工程与工程振动,2006,26(3):180-183.Guo Endong,Yu Shizhou,Wu Wei.Seismic damage analysis ofburied pipeline engineering[J].Earthquake Engineering and En-gineering Vibration,2006,26(3):180-183.
[7]毛建猛,李鸿晶.跨越断层地下管线震害因素分析[J].国际地震动态,2005,316(4):27-31.Mao Jianmeng,Li Hongjing.Analysis of seismic damage on bur-ied pipeline crossing a fault[J].Recent Developments in WorldSeismology,2005,316(4):27-31.
[8]王莲芳,许树柏.层次分析法引论[M].北京:中国人民大学出版社,1990.
[9]铁永波,唐川.层次分析法在单沟泥石流危险度评价中的应用[J].中国地质灾害与防治学报,2006,17(4):79-84.Tie Yongbo,Tang Chuan.Application of AHP in single debrisflowrisk assessment[J].The Chinese Journal of Geological Haz-ard and Control,2006,17(4):79-84.
[10]谢振福,陈起鸿.海口市地下管线的可能震害分析及抗震对策[J].工程抗震与加固改造,2007,29(4):100-104.Xie Zhenfu,Chen Qihong.Potential seismic damage analysis andcountermeasures of the underground pipelines in haikou[J].Earthquake Resistant Engineering and Retrofitting,2007,29(4):100-104.
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