摘要
长江三峡地区滑坡崩塌分布广泛，灾害严重，特别是在三峡水利工程枢纽兴建以后，古滑崩体的复活以及岸坡失稳势必会对未来的三峡水库以及城镇居民建设、公路交通安全造成一定的影响。因此，以长江三峡地区的滑坡编目资料为基础，对该地区的滑坡特征进行了全面的分析，并对其形成机制进行了初步的探讨。同时，综合滑坡灾害诱发因素，运用信息量预测模型进行了滑坡灾害空间预测，并以此为基础结合土地使用情况将该地区划分五个不同等级即极危险区、危险区、中等危险区和低危险区、无危险区，实现了库区滑坡灾害危险性评价。
On the basis of the catalogue about regional landslides,the features of landslides have been comprehensively analysized in Three Gorges Reservoir area of the Yangtze River .Connected with the forming conditions ,the prediction of landslide zonation has been studied by using information model,which points out the trend of landslides' distribution.According to the results in the prediction,five subregions are demarcated with reference to the riskiness of landslide harzard,i.e., very risky subregions,risky subregions,relatively risky subregions,low risk subregions and no risk subregions.The divisions are related to the transportation in the Yangtze River and on highway,the building of cities and towns as well as the safety of the people living in this region.Accordingly,different counter measures should be applied to different subregions.
出处
《长江流域资源与环境》
CAS
CSCD
1998年第2期186-192,共7页
Resources and Environment in the Yangtze Basin
基金
中国科学院山地灾害基金
