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论述了2007年9月19日发生于青田县小舟山乡的一次泥石流活动,揭示了泥石流的启动原因以及物质输移过程中组分的变化,认为强降雨是泥石流启动的重要诱发因素,泥石流的形成主要是违背地质环境条件的人类工程活动所致。阐述了泥石流在输移过程中物质组分从泥流变化为泥石流再到泥流的过程,同时从物质构成上确定该泥石流为稀性泥石流。最后总结得出人类工程活动应符合地质环境的生态规律,否则将导致不良后果。
Discusses a debris flow activity occurred in Xiaoshan Zhoushan of Qingtian County on September 19, 2007, reveals the reasons for the start of debris flow and the change of components in the process of material transport. It is considered that heavy rainfall is an important inducing factor for the start of debris flow. Due to human engineering activities that mainly violate the geological and environmental conditions. The process of debris flow changing from mud flow to debris flow to mud flow during the transportation of debris flow is explained. At the same time, the debris flow is determined to be a dilute debris flow from the material composition. The conclusion is concluded that human engineering activities should conform to the ecological laws of the geological environment, otherwise it will lead to adverse consequences.