新疆孔吾拉齐水库地质灾害危险性评估

Risk Assessment of Geological Hazards at Kowulaqi Reservoir in Xinjiang Province of China

在对新疆孔吾拉齐水库工程项目评估区主要环境地质条件进行野外调查的基础上,对水库工程项目评估区范围内各种类型地质灾害的危险性进行了现状评估,并对水库蓄水后库区可能引发或加剧的地质灾害危险性进行了预测评估。结果表明:评估区内主要发育有崩塌和泥石流沟两种类型地质灾害;根据评估区地质灾害危害程度进行综合分区,可将评估区划分为地质灾害危险性小区(I)和地质灾害危险性中等区(Ⅱ)两个区;该水库建设用地适宜性为基本适宜-适宜,并针对水库建设项目可能加剧的地质灾害,提出了具体的防治措施与建议。

Based on the field investigation of the main environmental geological conditions of the assessment area of Kowulaqi reservoir project,this paper conducts the assessment on all kinds of geological hazards at Kowulaqi reservoir.The results show that there are mainly two kinds of geological hazards:collapse and debris flow.Then,the paper predicts the risk of geological hazards that leads to or aggravates the geological hazards after the impouding of the reservoir.Next,the paper conducts the comprehensive zoning according to the risk of the geological hazards and divides the assessment area of geologic disasters into two zones:the low danger area(I),and the medium danger area(Ⅱ).The suitability of the construction land for the reservoir is basically suitable.Finally,the paper puts forward specific measures and suggestions concerning the potential geological disasters that could be exacerbated by the project.