鲜水河地震带炉霍段泥石流特征初步研究
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摘要
鲜水河地震带是我国8大地震带之一,其附近区域地质灾害活动强烈。鲜水河地震带炉霍段是泥石流多发段,该地带的泥石流发育特征与活动断裂分布、地形地貌和水文气象因子密切相关。结合GIS技术,分别从地质构造、地理位势、地层岩性、水文气象和人类活动5个方面揭示了该区域泥石流的成因和分布特征。调查结果表明,研究区的泥石流发育具有明显的区域性和季节性,其发育程度与距离鲜水河断裂带的远近密切相关。
Xianshuihe seismic zone is one of eight major seismic zones in China.In the vicinity of this seismic zone,the activities of geological disasters are strong.Luhuo region in this Xianshuihe seismic zone is prone to debris flow,where the development characteristics of debris flow are closely related to distribution of active faults,topography and hydrological and meteorological factors.Based on GIS technology,the causes and distributions of debris flows in this region are revealed from the perspective of geological structure,geographical location,stratum lithology,hydro-meteorological and human activities in the region.The results show that the development of the debris flow in the study area is of obvious regional and seasonal characteristics and the extent of its development is closely related with the distance to Xisnshuihe fault zone.
Xianshuihe seismic zone is one of eight major seismic zones in China.In the vicinity of this seismic zone,the activities of geological disasters are strong.Luhuo region in this Xianshuihe seismic zone is prone to debris flow,where the development characteristics of debris flow are closely related to distribution of active faults,topography and hydrological and meteorological factors.Based on GIS technology,the causes and distributions of debris flows in this region are revealed from the perspective of geological structure,geographical location,stratum lithology,hydro-meteorological and human activities in the region.The results show that the development of the debris flow in the study area is of obvious regional and seasonal characteristics and the extent of its development is closely related with the distance to Xisnshuihe fault zone.
引文
[1]田连权.四川炉霍地震泥石流[M]//泥石流(3).重庆:科学技术文献出版社重庆分社,1986:58-66.
[2]徐俊名,谭万沛.1976年松潘平武地震泥石流[M]//泥石流(3).重庆:科学技术文献出版社重庆分社,1986:58-66.
[3]周必凡,兰肇声.1976年唐山地震区的泥石流[M]//泥石流(3).重庆:科学技术文献出版社重庆分社,1986:58-66.
[4]Chia-Nan Liu,Hsiao-Fung Huang,Jia-Jyun Dong.Impactsof September21,1999 Chi-Chi earthquake on the characteristicsof gully-type debris flows in central Taiwan[J].Nature Haz-ards,2008(47):349-368.
[5]Ching-Weei Lin,Chjeng-Lun Shieh,Bee-Deh Yuan,et al.Impact of Chi—Chi earthquake on the occurrence of landslides anddebris flows:example from the Chenyulan River watershed,Nan-tou,Taiwan[J].Engineering Geology,2003(71):49-61.
[6]唐川,梁京涛.汶川震区北川暴雨泥石流特征研究[J].工程地质学报,2008,16(6):751-758.
[7]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994:140-146.
[8]钟敦伦.论地震在泥石流活动中的作用[C]//泥石流论文集(1).重庆:科学技术文献出版社重庆分社,1981:30-35.
[9]柳金锋,欧国强,游勇.四川甘孜达曲各目弄巴沟泥石流及其防治对策[J].灾害学,2008,23(3):36-40.
[2]徐俊名,谭万沛.1976年松潘平武地震泥石流[M]//泥石流(3).重庆:科学技术文献出版社重庆分社,1986:58-66.
[3]周必凡,兰肇声.1976年唐山地震区的泥石流[M]//泥石流(3).重庆:科学技术文献出版社重庆分社,1986:58-66.
[4]Chia-Nan Liu,Hsiao-Fung Huang,Jia-Jyun Dong.Impactsof September21,1999 Chi-Chi earthquake on the characteristicsof gully-type debris flows in central Taiwan[J].Nature Haz-ards,2008(47):349-368.
[5]Ching-Weei Lin,Chjeng-Lun Shieh,Bee-Deh Yuan,et al.Impact of Chi—Chi earthquake on the occurrence of landslides anddebris flows:example from the Chenyulan River watershed,Nan-tou,Taiwan[J].Engineering Geology,2003(71):49-61.
[6]唐川,梁京涛.汶川震区北川暴雨泥石流特征研究[J].工程地质学报,2008,16(6):751-758.
[7]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994:140-146.
[8]钟敦伦.论地震在泥石流活动中的作用[C]//泥石流论文集(1).重庆:科学技术文献出版社重庆分社,1981:30-35.
[9]柳金锋,欧国强,游勇.四川甘孜达曲各目弄巴沟泥石流及其防治对策[J].灾害学,2008,23(3):36-40.
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