发震断层附近场点的最大永久位移估计
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摘要
借鉴Lee等提出的发震断层引起的地表最大永久位移估计方法,结合中国第四代地震区划图的潜在震源区参数、断层模型及地震危险性分析方法,本文提出了发震断层附近最大永久位移场的估计方法.以大岗山水电站工程为例,结合工程场点所在区域的地震危险性分析及距离场点最近的发震断层-磨西断裂地震地质资料和地震活动性资料,计算了不同概率水准所对应的设定地震下的地表最大永久位移.与《建筑抗震设计规范》和《水工建筑物抗震设计规范》要求地震动概率水准一样,发震断层附近场点不同概率水准下的地表永久位移评估为水坝等工程提供了基础数据,以便采取合理的抵抗永久地表位移措施,以减小地震灾害带来的损失.
A approach to evaluate permanent peak displacement near causative faults was presented,which was based on the frame work of Lee,et al,the parameters of potential source zone affirmed by the 4th seismic zoning map of China,fault model and approach to seismic risk analysis.The proposed approach was applied to Dagangshan hydropower station,and the peak values of permanent displacement near Moxi fault corresponding to design earthquakes in different probabilistic levels were given by using the results of seismic risk analysis and the data of seismic geology and characteristics of seismic activity.The objective of this paper is to determine the peak value of permanent displacement near causative faults in individud probabilistic level,which have the same of probabilistic levels of strong ground motion claimed on the code for seismic design of buildings and the code for seismic design of hydraulic structure of China.Based on the results,some measures of anti-displacement are took in dam engineering,as to minimize loss caused by earthquakes.
A approach to evaluate permanent peak displacement near causative faults was presented,which was based on the frame work of Lee,et al,the parameters of potential source zone affirmed by the 4th seismic zoning map of China,fault model and approach to seismic risk analysis.The proposed approach was applied to Dagangshan hydropower station,and the peak values of permanent displacement near Moxi fault corresponding to design earthquakes in different probabilistic levels were given by using the results of seismic risk analysis and the data of seismic geology and characteristics of seismic activity.The objective of this paper is to determine the peak value of permanent displacement near causative faults in individud probabilistic level,which have the same of probabilistic levels of strong ground motion claimed on the code for seismic design of buildings and the code for seismic design of hydraulic structure of China.Based on the results,some measures of anti-displacement are took in dam engineering,as to minimize loss caused by earthquakes.
引文
[1]中华人民共和国行业标准.水工建筑物抗震设计规范(DL5073-2000)[M].2000Industry standard of the People's Republic of China,Specifications for seismic design of hydraulic structures[M](DL5073-2000),2000.(in Chinese)
[2]赵纪生,刘艳琼,师黎静,等.基于第四代地震区划的跨越发震断层永久位移概率分析方法[J].地震工程与工程振动,2008,24(4):22-27Zhao Jisheng,Liu Yanqiong,Shi Lijing,et al.A probabilistic approach to evaluate permanent displacement crossing fault by the4th generation seismic zoning map of China[J].Earthquake Engineering and Engineering Vibration,2008,24(4):22-27
[3]Todorovska M I,Trifunac M D,Lee V W.Shaking hazard compatible methodology for probabilistic assessment of permanent ground displacement across earthquake faults[J].Soil Dynamics and Earthquake Engineering,2007,27(6):586-597
[4]赵纪生,周正华.发震断层的永久位移概率评估方法[J].岩土力学与工程学报,2009,28(2):3349-3356Zhao Jisheng,Zhou Zhenghua.A probabilistic approach to evaluate permanent displacement on causative faults[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):3349-3356
[5]赵纪生,陶夏新,师黎静.地震地表破裂特征及其对应的分析方法[J].世界地震工程,2007,23(3):68-73Zhao Jisheng,Tao Xiaxin,Shi Lijing.Characteristics of earthquake surface ruptures and related analytical methods[J].World Earthquake Engineering,2007,23(3):68-73
[6]Zhao J S,Tao X X,Shi L J.An approach to evaluate ground surface rupture caused by reverse fault movement[J].Earthquake Engineering and Engineering Vibration,2006,5(1):27-39
[7]Lee V W,Trifunac M D,Todorovska M I,Novikova E I.Empirical equations describing attenuation of the peaks of strong ground motion,in terms of magnitude,distance,path effects and site conditions[R].Department of Civil Engineering,University of Southern California,1995
[8]钟菊芳,胡晓,易立新,等.重大工程设定地震方法研究进展[J].水力发电,2005,31(4):22-24Zhong Jufang,Hu Xiao,Yi Lixin,et al.Advances in scenario earthquake methods for key controrl[J].Water power,2005,31(4):22-24
[9]Mc Guire R K.Probabilistic seismic hazard analysis and design earthquake[J].Closing the loop,BSSA,1995,85(5):1275-1284
[10]Donald L Wells,Kevin J.Coppersmith,new empirical relationships among magnitude,rupture length,rupture width,rupture area,and surface displacement[J].Bulletin of the Seismological Society of America,1994,84(4):974-1002
[11]Lee V W,Trifunac M D.Frequency dependent attenuation function and Fourier amplitude spectra of strong earthquake ground motion in California[R].Department of Civil Engineering,University of Southern California,1995
[12]Lee V W,Trifunac M D.Pseudo relative velocity spectra of strong earthquake ground motion in California[R].Department of Civil Engineering,University of Southern California,1995
[13]国家质量监督检验检疫总局.中国地震动参数区划图(GB18306-2001)[M].2001General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Seismic Ground Motion Parameter Zonation Map of China(GB18306-2001)[M],2001.(in Chinese)
[14]四川省地震局工程地震研究院,中国地震局地质研究所,中国地震局地球物理研究所.大渡河大岗山水电站工程场地地震安全性评价报告[R].2004Institute of engineering earthquake,Sichuan Earthquake Administration,Institute of Geology,China Earthquake Administration and Instiute of Geophysics,China Earthquake Administration.Earthquakes safety evaluation Dagangshan hydroelectric power station in DaDu River,2004.(in Chinese)
[2]赵纪生,刘艳琼,师黎静,等.基于第四代地震区划的跨越发震断层永久位移概率分析方法[J].地震工程与工程振动,2008,24(4):22-27Zhao Jisheng,Liu Yanqiong,Shi Lijing,et al.A probabilistic approach to evaluate permanent displacement crossing fault by the4th generation seismic zoning map of China[J].Earthquake Engineering and Engineering Vibration,2008,24(4):22-27
[3]Todorovska M I,Trifunac M D,Lee V W.Shaking hazard compatible methodology for probabilistic assessment of permanent ground displacement across earthquake faults[J].Soil Dynamics and Earthquake Engineering,2007,27(6):586-597
[4]赵纪生,周正华.发震断层的永久位移概率评估方法[J].岩土力学与工程学报,2009,28(2):3349-3356Zhao Jisheng,Zhou Zhenghua.A probabilistic approach to evaluate permanent displacement on causative faults[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):3349-3356
[5]赵纪生,陶夏新,师黎静.地震地表破裂特征及其对应的分析方法[J].世界地震工程,2007,23(3):68-73Zhao Jisheng,Tao Xiaxin,Shi Lijing.Characteristics of earthquake surface ruptures and related analytical methods[J].World Earthquake Engineering,2007,23(3):68-73
[6]Zhao J S,Tao X X,Shi L J.An approach to evaluate ground surface rupture caused by reverse fault movement[J].Earthquake Engineering and Engineering Vibration,2006,5(1):27-39
[7]Lee V W,Trifunac M D,Todorovska M I,Novikova E I.Empirical equations describing attenuation of the peaks of strong ground motion,in terms of magnitude,distance,path effects and site conditions[R].Department of Civil Engineering,University of Southern California,1995
[8]钟菊芳,胡晓,易立新,等.重大工程设定地震方法研究进展[J].水力发电,2005,31(4):22-24Zhong Jufang,Hu Xiao,Yi Lixin,et al.Advances in scenario earthquake methods for key controrl[J].Water power,2005,31(4):22-24
[9]Mc Guire R K.Probabilistic seismic hazard analysis and design earthquake[J].Closing the loop,BSSA,1995,85(5):1275-1284
[10]Donald L Wells,Kevin J.Coppersmith,new empirical relationships among magnitude,rupture length,rupture width,rupture area,and surface displacement[J].Bulletin of the Seismological Society of America,1994,84(4):974-1002
[11]Lee V W,Trifunac M D.Frequency dependent attenuation function and Fourier amplitude spectra of strong earthquake ground motion in California[R].Department of Civil Engineering,University of Southern California,1995
[12]Lee V W,Trifunac M D.Pseudo relative velocity spectra of strong earthquake ground motion in California[R].Department of Civil Engineering,University of Southern California,1995
[13]国家质量监督检验检疫总局.中国地震动参数区划图(GB18306-2001)[M].2001General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Seismic Ground Motion Parameter Zonation Map of China(GB18306-2001)[M],2001.(in Chinese)
[14]四川省地震局工程地震研究院,中国地震局地质研究所,中国地震局地球物理研究所.大渡河大岗山水电站工程场地地震安全性评价报告[R].2004Institute of engineering earthquake,Sichuan Earthquake Administration,Institute of Geology,China Earthquake Administration and Instiute of Geophysics,China Earthquake Administration.Earthquakes safety evaluation Dagangshan hydroelectric power station in DaDu River,2004.(in Chinese)
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