浙江省临安市小流域泥石流与降雨关系分析

Analysis on the Relationships Between the Small Range Debris Flow and Rainfall in Linan,Zhejiang Province

浙江省临安市"9.3"洪灾期间在昌化地区发生了几十处大小不一的泥石流灾害,通过对历史发生泥石流的地质环境条件解析,以及对临安市历年较典型泥石流发生时的降雨条件分析,得出了临安市不同地质环境条件下,泥石流的发生存在一定的临界雨量特征,对今后浙江省地质灾害的防治工作具有一定指导意义。

During the ＂9.30＂ flood disaster in linan city, Zhejiang province, there were dozens of varying sizes debris flow happened in changhua area. Through the dissection of the geological environmental conditions of the debris flow area, and the analysis of the rainfall condition when the typical landslides occurred over the years, it concludes that un- der different geological settings, the occurrence of debris flow in this city has some critical rainfall characteristics, and it＇ s meaningful to disaster prevention and mitigation of Zhejiang.