三叉沟泥石流形成原因及防治措施

通过对三叉沟泥石流成灾历史及研究区的地层岩性、地质构造、地形地貌条件、水源条件和物源条件进行深入分析,表明三叉沟暴发大规模泥石流可能性大。进而对其泥石流动力学特征进行了分析计算,并根据泥石流形成特征及威胁对象分布,提出了"梳齿坝+修建非全防护排导槽"防治措施。

Genesis and Preventive Measure of Debris Flow in Sancha Gully

Through deep analysis on the disaster history of debris flow in Sancha Gully, as well as the lithologic character of strata in the study area, the geological structure and the conditions of landform, water and matter sources thereof, it was shown that there had high possibility to break out large-scale debris flow in Sancha Gully. Furthermore, the kinetic characteristics of the debris flow was calculated and studied and, according to its formation characteristics and the distribution of objects under the threat, the prevention measures of "comb dam + non-full protection drainage groove" was proposed.