南水北调西线工程区主要山地灾害  

Main Mountain Disasters in West Route of South-to-north Water Transfer Project Area

作　　者：符新阁[1] 杨伟[1] 应敬浩[1] 屈龙[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《华北水利水电学院学报》2011年第4期122-125,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：南水北调西线工程地处青藏高原东部,地质条件复杂,新构造活动强烈,崩塌、滑坡、泥石流等山地灾害较为发育.分析了工程区主要山地灾害的发生机制及其影响因素,深入研究了山地灾害存在和活动的时空分布规律.研究表明,泥石流的活动具有很强的季节性,崩塌、滑坡的发生也具有季节性,随着人类工程活动加剧,崩塌、滑坡发生的频度会更高,危害更大;在区域上,达曲、杜柯河崩塌、泥石流最为发育,其次是泥曲;杜柯河、玛柯河滑坡最为发育.西线工程的建设可能诱发新的山地灾害,影响工程的正常运行.了解并掌握山地灾害的诱因及分布规律有助于采取相应的防范措施,减少人为山地灾害的发生,降低山地灾害造成的损失.The West Route Project of South-to-North Water Transfer is located in the eastern Tibetan plateau with complex geological conditions, strong new construction activity. Mountain disasters such as avalanches, landslides, mudslides occur frequently. In this paper, the temporal and spatial distribution laws of existence and activities of mountain disasters are analyzed. Research shows that mudslides activity has a strong seasonal characteristics, also avalanches and landslides. With the increase of human engineering activities, occurrence frequency of avalanches and landslides will be higher, and more dangerous. In the area distribution, avalanches and mudslides are mostly developed in Daqu and Duke river, secondly Niqu, while landslides are mostly developed in Duke river and Make river. The West Route Project construction may trigger new mountain disasters, which may affect the normal operation of the project. Understanding and mastering the incentives and distribution law of the mountain disasters will help to take appropriate preventive measures. This can reduce man-made mountain disasters and reduce losses caused by mountain disasters.

关 键 词：山地灾害 崩塌 滑坡 泥石流 时空分布规律 

分 类 号：TV68[水利工程—水利水电工程]