摘要
在对清江隔河岩水库库岸5个滑坡体进行稳定性监测工作的基础上,总结出3种不同类型的滑坡位移曲线:平稳型变化曲线、发展型变化曲线、收敛型变化曲线,并提出了相应的位移数学模型。初步认为:平稳型变化曲线采用线性函数来拟合,发展型变化曲线采用灰色理论建立GM(1.1)模型来拟合,收敛型变化曲线采用对数函数来拟合。位移模型的建立有助于对各滑坡体趋势性位移进行定量分析和中短期预测并能直接或间接地反映出滑坡体变形的总趋势,分析了清江库岸5个滑坡体各自位移特征及发展趋势,为水库蓄水及库区移民和当地政府防灾决策提供科学依据。
Based on the stability of five landslide masses on the banks of Geheyan reservoir on Qingjiang river, three different types of displacement curves of landslides are summed up, i. e. the stational-type, developing-type and convergent-type variation curves, and the mathematical model corresponding to each type of displacement curves has been devioped. It is preliminarly considered that the stational-type, developing-type, and convergent-type variation curves can be fitted with linear functions, GM (1. 1) model developed by grey therory, and logarithmic function, respectively. The development of displacement models is favourable to quantitative analyses and medium-short term forecast of diplacement of landslide masses, and it can directly or indirectly reflect the general trend of deformation of a landslide mass. The characteristics and the development trend of displacement for each of five landslide masses on the reservoir bank are analysed, which provides scientific basis for the impoundment of the reservoir, emigration from the reservoir area and the local government,s decision on preventing disaster.
出处
《人民长江》
北大核心
1995年第12期38-42,共5页
Yangtze River
关键词
水库
库岸
滑坡
变形
位移
蠕变强度
Slide monitoring Deformation observation Movement observation Creep strength Geheyan Hydropower Station