摘要:
黄渚镇位于地质灾害高频发地区—陇南山地的北部。2010年8月12日,黄渚镇一带遭遇百年不遇的暴雨,形成暴洪灾害,并诱发泥石流、滑坡、矿坑突水、道路岸坡坍塌等次生灾害,给当地群众及厂坝铅锌矿作业区造成重大灾害与损失。通过对本次暴洪泥石流灾害的特征及成因进行分析,得出:百年不遇的暴雨是灾害形成的直接原因,而人类不合理的活动则加重了灾害的危害程度,同时当地的地形地貌、地层岩性等条件也是灾害形成的有利条件。
关键词:
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甘肃
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黄渚镇
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暴洪泥石流
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灾害特征
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分析
Abstract:
The Huangzhu town be located in the geological disasters in high frequency area-in the hill country of Longnan North. On 12 August in 2010, around the town Huangzhu,happened heavy rain with since the century, form flash-flood disasters, and induced debris flow, landslides, collapse of mine water bursting, road bank such as secondary disasters, to the local people and factory operation caused significant deposits of disasters and loss. In this paper, the characteristics of the flash-flood debris flow hazards and cause analysis, reach a decision : the heavy rain is immediate cause of the formation of the disaster, the humans unreasonable activity is increasing the disaster damage degree, and at the same time the local topography and landforms, rocks and conditions are also of the formation of the disaster favorable conditions.
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