泥石流源地松散体起动人工降雨模拟及放水冲刷实验

EXPERIMENTS OF ARTIFICIAL SIMULATION RAINFALL AND SETTING WATER INITIATING ACCUMULATED MATERIAL IN DEBRIS FLOW ORIGIN PLACE

以神府－东胜矿区人为泥石流及云南东川蒋家沟自然泥石流为研究对象，采用人工降雨及放水冲刷模拟实验方法，分析了不同类型、不同地区泥石流源地松散体起动条件及泥石流过程，得出一些有意义的结论。

Through a great deal of experiments of artificial simulation rainfall and setting water rushing in ShenFu_DongSheng mine area and Dong Chuang Jiang Jia Gou debris flow gully,this reserach has induced four results.1.The initiating of material accumulated by human activity needed relatively small external force and led to large erosion modulus,debris flow is easy to occur;2.The whole debris flow process could be observed throuth the model simulation experiment of debris flow gully.At present,the experiment method is the best way to analyse debris flow genesis and process;3.In the debris folw process of Jiang Jia Gou,the accumulation is mainly from hillslide and slope collapsing during torrential rain;4.Debris flow caused by human activity is easy to occur,but scale is smaller and disaster extent is more serious than that of the natural.