逆冲型地震地表破裂带宽度与活断层“避让带”的分析研究
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摘要
综合分析大量汶川地震地表破裂带宽度资料与其它逆冲型断层历史地震地表破裂带宽度数据,采用统计分析方法,计算得出逆冲型活断层"避让带"的有效宽度约为30 m,并给出活断层上盘的避让宽度约20~22.5 m,下盘的避让宽度约为7.5~10 m。研究结果可为建筑工程避让逆冲型断层和其他类型断层提供参考依据。
A lot of width data surface rupture zone of Wenchuan M8.0 earthquake and other historical earthquakes occurred on the thrust fault are comprehensively analyzed.We calculated that the effective width of thrust faults "avoiding belt" is about 30 m by statistical analysis methods,and obtained that the width of "avoiding belt" of hanging wall of active fault is about 20~22.5 m,and its foot wall is about 7.5~10 m.The research results can provide references for construction engineering for avoiding thrusting fault and other fault types.
A lot of width data surface rupture zone of Wenchuan M8.0 earthquake and other historical earthquakes occurred on the thrust fault are comprehensively analyzed.We calculated that the effective width of thrust faults "avoiding belt" is about 30 m by statistical analysis methods,and obtained that the width of "avoiding belt" of hanging wall of active fault is about 20~22.5 m,and its foot wall is about 7.5~10 m.The research results can provide references for construction engineering for avoiding thrusting fault and other fault types.
引文
陈桂华,徐锡伟,郑荣章,等.2008.2008年汶川M8.0地震地表破裂变形定量分析:北川一映秀断裂地表破裂带[J].地震地质,30(3):723-738.
郭婷婷,徐锡伟,于贵华.2010.基于抗震设防要求的汶川地震建筑物破坏分析[J].地震研究,33(4):346-353.
国家地震局地质研究所,国家地震局兰州地震研究所.1993.祁连山一河西走廊活动断裂系[M].北京:地震出版社.
国家地震局兰州地震研究所.1992.昌马活动断裂带[M].北京:地震出版社.
李传友,魏占玉.2008.2008年汶川MS8 .0地震北川以北段地表破裂变形的主要样式[J].第四纪研究,29(3):416-425.
李传友,叶建青,谢富仁,等.2008.汶川MS8 .0地震地表破裂带北川以北段的基本特征[J].地震地质,30(3):683-696.
李锡堤,郑锦桐,廖启雯.2000.921集集大地震的地盘变形现象及断层禁限建问题[A]//第八届台湾地区地球物理研讨会论文集,669 -675.
吴珍汉,张作辰.2008.汶川M S8 .0级地震的地表变形与同震位移[J].地质通报,27(12):2 067-2 075.
徐锡伟,闻学泽,叶建青,等.2008.汶川M8.0地震地表破裂带及其发震构造[J].地震地质,30(3):597-629.
徐锡伟,杨晓平,杨忠东,等.1996.城市地震地质灾害及其预测问题初论[J].水文地质工程地质,23(3):32-35.
徐锡伟,于贵华,马文涛,等.2002.活断层地震地表破裂“避让带”宽度确定的依据与方法[J].地震地质,24(4):470-483.
于贵华,徐锡伟,陈桂华,等.2009.汶川8.0级地震地表变形局部化样式与建筑物破坏特征关系初步研究[J].地球物理学报.52(12):3027-3041.
张永双,孙萍,石菊松,等.2010.汶川地震地表破裂影响带调查与建筑场地避让宽度探讨[J].工程地质学报,18(3):312-319.
郑文俊,李传友,王伟涛,等.2008.汶川8.0级地震陡坎(北川以北段)探槽的记录特征[J].地震地质,30(3):697-709.
周庆,徐锡伟,于贵华,等.2008.汶川8.0级地震地表破裂带宽度调查[J].地震地质,30(3):778-788.
Kelson K I,Kang K H,Page W D,et al.2001.Representative styles of deformation along the Chelungpu Fault from the 1999 Chi-Chi(Taiwan)Earthquake:Geomorphic characteristics and responses of man.made structures[J].Bull Seism Soc Am,91(5):930-952.
Lee J C,Chen Y G,Sieh K,et al.2001.A vertical exposure of the 1999surface rupture of the Chelungpu Fault at Wufeng,Western Taiwan:structural and paleoseismic implications for an active thrust fault[J].Bull Seism Soc Am,91(5):914-929.
Wu Z H,Patrick J,Barosh,et al.2012.Effects from the Wenchuan Earthquake and seismic hazard in the Longmenshan Mountains at the eastern margin of the Tibetan Plateau.Engineering Geology,143-144:28-36.
郭婷婷,徐锡伟,于贵华.2010.基于抗震设防要求的汶川地震建筑物破坏分析[J].地震研究,33(4):346-353.
国家地震局地质研究所,国家地震局兰州地震研究所.1993.祁连山一河西走廊活动断裂系[M].北京:地震出版社.
国家地震局兰州地震研究所.1992.昌马活动断裂带[M].北京:地震出版社.
李传友,魏占玉.2008.2008年汶川MS8 .0地震北川以北段地表破裂变形的主要样式[J].第四纪研究,29(3):416-425.
李传友,叶建青,谢富仁,等.2008.汶川MS8 .0地震地表破裂带北川以北段的基本特征[J].地震地质,30(3):683-696.
李锡堤,郑锦桐,廖启雯.2000.921集集大地震的地盘变形现象及断层禁限建问题[A]//第八届台湾地区地球物理研讨会论文集,669 -675.
吴珍汉,张作辰.2008.汶川M S8 .0级地震的地表变形与同震位移[J].地质通报,27(12):2 067-2 075.
徐锡伟,闻学泽,叶建青,等.2008.汶川M8.0地震地表破裂带及其发震构造[J].地震地质,30(3):597-629.
徐锡伟,杨晓平,杨忠东,等.1996.城市地震地质灾害及其预测问题初论[J].水文地质工程地质,23(3):32-35.
徐锡伟,于贵华,马文涛,等.2002.活断层地震地表破裂“避让带”宽度确定的依据与方法[J].地震地质,24(4):470-483.
于贵华,徐锡伟,陈桂华,等.2009.汶川8.0级地震地表变形局部化样式与建筑物破坏特征关系初步研究[J].地球物理学报.52(12):3027-3041.
张永双,孙萍,石菊松,等.2010.汶川地震地表破裂影响带调查与建筑场地避让宽度探讨[J].工程地质学报,18(3):312-319.
郑文俊,李传友,王伟涛,等.2008.汶川8.0级地震陡坎(北川以北段)探槽的记录特征[J].地震地质,30(3):697-709.
周庆,徐锡伟,于贵华,等.2008.汶川8.0级地震地表破裂带宽度调查[J].地震地质,30(3):778-788.
Kelson K I,Kang K H,Page W D,et al.2001.Representative styles of deformation along the Chelungpu Fault from the 1999 Chi-Chi(Taiwan)Earthquake:Geomorphic characteristics and responses of man.made structures[J].Bull Seism Soc Am,91(5):930-952.
Lee J C,Chen Y G,Sieh K,et al.2001.A vertical exposure of the 1999surface rupture of the Chelungpu Fault at Wufeng,Western Taiwan:structural and paleoseismic implications for an active thrust fault[J].Bull Seism Soc Am,91(5):914-929.
Wu Z H,Patrick J,Barosh,et al.2012.Effects from the Wenchuan Earthquake and seismic hazard in the Longmenshan Mountains at the eastern margin of the Tibetan Plateau.Engineering Geology,143-144:28-36.
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