汶川地震中甘肃滑塌灾害特征及减轻对策刍议

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英文篇名：A Preliminary Discussion on the Characteristics of Landslide-collapse Disaster Induced by Wenchuan Earthquake in Gansu and Countermeasures for Disaster Mitigation 中文刊名：西北地震学报 英文刊名：Northwestern Seismological Journal 作者：陈永明 ; 滕光亮 英文作者：CHEN Yong-ming 1 ; 2 ; 3 ; TENG Guang-liang 1 ; 2(1.Lanzhou Institute of Seismology ; CEA ; Lanzhou 730000 ; China ; 2.Open Laboratory of Loess Earthquake Engineering ; CEA ; Lanzhou 730000 ; China ; 3.Geotechnical Disaster Prevention Engineering Technology Research Center of Gansu Province ; Lanzhou 730000 ; China) 中文关键词：汶川地震 ; 陇南地区 ; 滑塌灾害 ; 影响因素 ; 减轻对策 英文关键词：Wenchuan earthquake ; Southern Gansu province ; Landslide and collapse disaster ; Influence factor ; Countermeasures for disaster mitigation 出版日期：2011-08-10 机构：中国地震局兰州地震研究所;中国地震局黄土地震工程开放实验室;甘肃省岩土防灾工程技术研究中心; 年：2011 期：S1 出版单位：西北地震学报

摘要

汶川地震在甘肃南部造成了极为严重的滑塌灾害。本文在武都区附近地震滑塌灾害统计研究的基础上,阐述了其主要类型和发育特征;论述了甘肃地震滑塌灾害的展布主要受地形、岩性、地震烈度、人类工程活动和植被发育程度等因素影响,在空间上分布很不均匀。地震烈度高的陇南灾区地震滑塌密度相对较大;节理发育的厚层(块状)岩层滑塌较为突出;黄土滑塌较为突出。进而提出了山区地震滑塌灾害减轻的注意事项以及甘肃省不同区域滑塌灾害减轻对策。
Wenchuan earthquake caused severe landslides and collapse disasters in southern Gansu province.The main types and characteristics of the disaster are expounded based on the statistical analysis on the earthquake disasters after Wenchuan earthquake in Wudu area.The earthquake slide-collapse disasters in Gansu were mainly affected by terrain,lithological characters,seismic intensity,human engineering activity,vegetation covering ratio and other factors.The distribution is not uniform.The density of earthquake slide-collapse disasters in southern Gansu with higher earthquake intensity was relatively bigger than other areas;and the disasters are concentrated in the thick layer rock area where exists widespread joints and in loess area.According to the research result,this paper put forward the attentions on lightening seismic slide-collapse disasters in mountainous region and some countermeasures for disaster mitigation in different zones of Gansu province.

引文

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