降雨型滑坡形成机理及其预测判据研究现状

Formation Mechanism and Forecast Criteria Research Status of Rainfall- Induced Landslide

降雨型滑坡分布地域广，发生频度高，致灾程度重，是滑坡灾害研究的最主要对象。在明确降雨型滑坡概念及其分类属性的基础上，详细分析了降雨型滑坡的诱发因素，尤其是动力因素，并由滑坡触发因素的作用机理推及降雨对降雨型滑坡的形成机理。并在整理分析国内外大量文献资料的基础上，按降雨型滑坡预测判据研究现状进行了纵向论述，认为降雨型滑坡预测判据不能单靠降雨量，还要结合遥感地质、水文地质、工程地质，进行系统研究，才能得出更准确、合理的预报结果。

Rainfall-indueed landslide, characterized by wide range of distribution, high frequency of occurrence and serious degree of hazard,is the most important object for landslide hazard research. On the basis of making certain of the concept and classification attribute of rainfall-induced landslide, this paper analyzes the inducing factors for rainfall-induced landslide in details, especially dynamic factor, and furthermore analogizes the action mechanism of landslide inducing factors to the formation mechanism of rainfall-induced landslide. In addition, based on sorting out and analyzing a great quantity of domestic ＆ foreign document literatures, longitudinal discussion has been done as per the research status of rainfallinduced landslide forecast criteria. It believes that the rainfall-induced landslide forecast criteria can not only rely on precipitation but also be subject to the systematic research in combination with remote sensing, hydrologic g~ engineering geology, so as to obtain more accurate and reasonable forecast results.