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在三峡库区典型地段滑坡灾害调查评价和统计分析的基础上,结合典型滑坡变形发展的阶段性变形现象、标志和临界诱发因素分析,初步提出3个层次的滑坡预警预报判据27条,包括:(1)滑坡空间预测识别判据11条,主要用于滑坡或潜在危岩体空间识别和危险性区划,是滑坡空间预测的基本判据;(2)滑坡状态判据7条,主要用于滑坡单体稳定性评价的亚临界-临界状态预警判据,是滑坡状态预警判据系统的重要组成部分;(3)滑坡临界时间预报判据9条,主要用于单体滑坡剧烈变形或临滑预报,是滑坡时间预报研究的关键判据。
Based on the survey, evaluation and statistical analysis of landslide disasters in the typical area of the Three Gorges Reservoir, combining with the analysis of the stage deformation, signs and critical inducing factors of typical landslide deformation, three levels of landslide warning and forecasting criteria are initially proposed, including 27 : (1) Landslide Spatial Prediction Identification Criterion 11, which is mainly used for spatial identification and risk zoning of landslide or potentially dangerous rock mass, which is the basic criterion of landslide space prediction; (2) Landslide condition criterion of 7 (3) Criteria for predicting landslide critical time are 9, which are mainly used for the severe deformation of single landslide or It is the key criterion for the study of landslide time forecast.