堰塘滑坡的地震危险性分析
|
摘要
姚家坪水利枢纽工程位于湖北省恩施市,堰塘滑坡是库区内主要的巨型滑坡,直接威胁姚家坪电站系统安全,危害性较大。滑坡体在天然状态下处于稳定状态,但在地震作用下,滑坡体处于极限平衡或不稳定状态。依据区域地震活动性、地质构造背景,分析现今各断裂带的地震活动性,判断出潜在的强震、中强震危险震源区,确定地震活动性参数和地震动参数衰减规律,为姚家坪电站系统的抗震设防和制定防灾对策提供依据。
Yaojiaping Hydro-junction Project is located in Enshi City, Hubei Province. Yantang landslide is a large landslide in the reservoir area, which directly threatens the safey of the Yaojiaping Hydropower Station system, it has more harmfulness. The landslide will be steady in natural condition, but under the seismic action, it will be in unsteady or ultimately balanced condition. On the basis of the activity of surrounding historical earthquakes and geological structure of Yantang landslide,the paper analyzes the activity on fault zone,and finds out the potentially seismic source of the strong and medium strong earthquakes, parameters of its activity and the attenuation laws of seismic parameters. The study provides an essential basis for seismic design and anti-seismic countermeasures of the Yaojiaping Hydropower Station system.
Yaojiaping Hydro-junction Project is located in Enshi City, Hubei Province. Yantang landslide is a large landslide in the reservoir area, which directly threatens the safey of the Yaojiaping Hydropower Station system, it has more harmfulness. The landslide will be steady in natural condition, but under the seismic action, it will be in unsteady or ultimately balanced condition. On the basis of the activity of surrounding historical earthquakes and geological structure of Yantang landslide,the paper analyzes the activity on fault zone,and finds out the potentially seismic source of the strong and medium strong earthquakes, parameters of its activity and the attenuation laws of seismic parameters. The study provides an essential basis for seismic design and anti-seismic countermeasures of the Yaojiaping Hydropower Station system.
引文
[1]魏贵春.GM(1,1)模型在滑坡预测中的应用[D].武汉:中国地震局地震研究所,2008.(WEI Gui-chun.The application of the GM(1,1)to prediction of landslide hazard[D].Wuhan:Institute of Seismology,CEA,2008.(in Chinese))
[2]李志祥,毛玉平,谢建斌,等.云南景洪电站水库库区断层与地震危险性分析[J].地震研究,2008,31(2):174-179.(LI Zhi-xiang,MAO Yu-ping,XIE Jian-bin,et al.Faults in the Reservoir Area of Jinghong,Yunnan,Hydropower Station and the Risk of Reservoir-induced Seismicity[J].Journal of Seismological Re-search,2008,31(2):174-179(in Chinese))
[3]王国新,梁树霞.改进的确定性地震危险性分析方法及其应用[J].世界地震工程研究,2009,25(2):24-29.(WANG Guo-xin,LIANG Shu-xia.Improved deter-ministic method of seismic hazard analysis and its applica-tion[J].World Earthquake Engineering,2009,25(2):24-29.(in Chinese))
[4]郭星,潘华,高孟潭.基于蒙特卡罗方法的梯级电站系统地震危险性分析[J].中国地震,2009,25(1):94-99.(GUO Xing,PAN Hua,GAO Meng-tan.Seismic hazard analysis of cascade hydropower stations system by the MonteCarlo Method[J].Earthquake Re-search in China,2009,25(1):94-99.(in Chinese))
[5]陈德兴,张恩立,陈锡晶.郯城-庐江断裂带北段现今活动习性及地震危险性分析[J].华北地震科学,2008,26(4):7-12.(CHEN De-xing,ZHANG En-li,CHEN Xi-jing.Analysis of current activity and strong seismic risk on the northern part of Tancheng-Lujiang fault zone[J].North China Earthquake Sciences,2008,26(4):7-12.(in Chinese))
[6]GUTENBERG B,RICHTER C F.Frequency of earth-quakes in California[J].Bulletin of the Seismological So-ciety of America,1944,(34):185-188.(in Chinese))
[2]李志祥,毛玉平,谢建斌,等.云南景洪电站水库库区断层与地震危险性分析[J].地震研究,2008,31(2):174-179.(LI Zhi-xiang,MAO Yu-ping,XIE Jian-bin,et al.Faults in the Reservoir Area of Jinghong,Yunnan,Hydropower Station and the Risk of Reservoir-induced Seismicity[J].Journal of Seismological Re-search,2008,31(2):174-179(in Chinese))
[3]王国新,梁树霞.改进的确定性地震危险性分析方法及其应用[J].世界地震工程研究,2009,25(2):24-29.(WANG Guo-xin,LIANG Shu-xia.Improved deter-ministic method of seismic hazard analysis and its applica-tion[J].World Earthquake Engineering,2009,25(2):24-29.(in Chinese))
[4]郭星,潘华,高孟潭.基于蒙特卡罗方法的梯级电站系统地震危险性分析[J].中国地震,2009,25(1):94-99.(GUO Xing,PAN Hua,GAO Meng-tan.Seismic hazard analysis of cascade hydropower stations system by the MonteCarlo Method[J].Earthquake Re-search in China,2009,25(1):94-99.(in Chinese))
[5]陈德兴,张恩立,陈锡晶.郯城-庐江断裂带北段现今活动习性及地震危险性分析[J].华北地震科学,2008,26(4):7-12.(CHEN De-xing,ZHANG En-li,CHEN Xi-jing.Analysis of current activity and strong seismic risk on the northern part of Tancheng-Lujiang fault zone[J].North China Earthquake Sciences,2008,26(4):7-12.(in Chinese))
[6]GUTENBERG B,RICHTER C F.Frequency of earth-quakes in California[J].Bulletin of the Seismological So-ciety of America,1944,(34):185-188.(in Chinese))
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