| 台风“菲特”引发的浙江余姚地质灾害类型与特征分析 |
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| 引用本文： | 廖克武,丁晓光,潘池泓.台风“菲特”引发的浙江余姚地质灾害类型与特征分析[J].中国地质灾害与防治学报,2014(2):130-134. |
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| 作者姓名： | 廖克武 丁晓光 潘池泓 |
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| 作者单位： | 浙江省第七地质大队,浙江杭州310030 |
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| 摘 要： | 余姚市地处浙东沿海，受2013年23号强台风“菲特”影响，遭受百年一遇强降雨，农村山区地质灾害频发，因灾损失达200×10^8元以上。通过对余姚159处地质灾害的调查和统计分析，余姚市地质灾害类型主要为崩塌、滑坡和泥石流，滑坡占本次地质灾害总数的64．2％，主要为小型浅表土质滑坡，中型泥石流2处。地质灾害的发生与降雨、地形地貌、松散层厚度以及人类活动等多个方面因素有关，其中松散层厚度和人类工程活动影响最为明显。文中提出了相关的预防措施，通过加强防灾避灾宣传，严格审批农村切坡建房，对重要地段的适当回避等，防治并举，以减轻同类地质灾害的影响。
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| 关 键 词： | 台风“菲特” 地质灾害 类型与特征 余姚市 |
Types and characteristics of geologic disasters induced by typhoon ＂Fitow＂ in Yuyao city |
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| LIAO Ke-wu,DING Xiao-guang,PAN Chi-hong.Types and characteristics of geologic disasters induced by typhoon ＂Fitow＂ in Yuyao city[J].The Chinese Journal of Geological Hazard and Control,2014(2):130-134. |
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| Authors: | LIAO Ke-wu DING Xiao-guang PAN Chi-hong |
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| Institution: | (The Seventh Geological Unit of zhejiang Province, Hangzhou 310030,China) |
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| Abstract: | Yuyao is located in eastern zhejiang coastal, suffered a once-in-a-century heavy rainfall because of this yearthe number 23 ＂ fitow＂ powerful typhoon, many geological disasters in rural areas happened and losses more than 20billion. Through the Yuyao 159 geological disasters investigation and statistical analysis, the types of geologicaldisasters are collapse, landslides and debris flows, and the landslide accounting for 64.2% of the total number ofgeological disasters, mainly for small shallow soil landslide, and two medium-sized debris flows. The occurrence ofgeological hazards related to rainfall, landform, loose bed thickness and human activities and so on, the most obviousfactors including the thickness of the loose bed and human engineering activities. The paper puts forward the measuresand proposals, by strengthening avoid and prevention disaster propaganda, rural construction by cut slope examinationand approval strictly and the dangerous section of prevention, to alleviate the impact of similar geological disasters. |
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| Keywords: | typhoon Fitow geologic disaster type and characteristic Yuyao city |
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