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甘肃省舟曲县因发生“8.8”特大山洪泥石流灾害而倍受世人关注。本文在概述县域自然地理条件,地质背景及生态环境变化的基础上,深入讨论了舟曲县地质灾害的类型、分布、规模、稳定状态及危害性特征,并以泄流坡滑坡和三眼峪泥石流为例,详细分析了地质灾害的影响因素、发育特征及危害评估,以期对正在舟曲实施的地质灾害防治工程有所帮助。
Zhouqu County, Gansu Province due to the occurrence of “8.8” extraordinary flood debris flow disaster and much attention. Based on the introduction of the natural geography conditions, geological background and the change of ecological environment in county, this paper discusses the types, distribution, scale, steady state and hazardous characteristics of geological disasters in Zhouqu County deeply. Taking the debris flow as an example, this paper analyzes in detail the influencing factors, development characteristics and hazard assessment of geological disasters, with a view to helping the geological disaster prevention and control project being implemented in Zhouqu.