“5.12”地震重灾区陇南某沟泥石流特征及防治对策
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摘要
"5.12"汶川地震不仅直接造成了巨大的人员和财产损失,同时还诱发了大量的崩塌、滑坡、泥石流等次生山地灾害。崩塌、滑坡直接为泥石流活动提供了丰富的松散固体物质,使这些泥石流沟在今后较长一段时间内处于活跃期。以地震重灾区陇南某泥石流沟为例,在分析泥石流沟流域和泥石流基本特征的基础上,预测了其发展趋势,并根据泥石流危险性提出了相应的防治对策。
The Wenchuan May 12th Earthquake has caused heavy casualties and property losses immediately,and induced a mass of secondary mountainous disasters such as collapse,landslide and debris flow.Collapse and landslide provide abundant incompact solid matter for movement of debris flow directly,which makes the debris flow ravines be active in a long period in the future.Taking a gully debris flows of southern Gansu in severe earthquake disaster area of "5·12" earthquake as an example,according to the basic features of the valley and the debris flow,the development trend of the debris flow was discussed.Finally,the prevention suggestion for the debris flow was proposed.
引文
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