Mechanism About Debris Flow's Formation And Investigation On Method Of Treatment In HaiLiu Clough

The debris flow is a very serious geologic hazard which explodes suddenly. It is induced not only by nature facts but also by mans activity. Recently,the occurrence of debris flow is closely interrelated to mans activity, especially when people exploit the nature resources of mountainous area. In the progress of the Western of China, each large-scale hydro-junction project relatively the national economy and the people's livelihood in the construction and the movement in the remote mountain must inevitablely face the debris flow disaster threat. In this stage, the debris flow disaster becomes the question which the water conservation worker can not but face it. Based on the reason above, the author give a pathbreaking study of the mechanism of debris flow formation in Hailiu clough.Any debris flow clough is a nonequilibrium opening system which is influnced by warious factors. Its information must possess the three essential condition: geologic factor, topographical factor and hydrometeorological factor. The different type debris flow also has respectively the different material composition ingredient, the different formation mechanism, the different fluid characteristic and the different harm degree. Therefore, in view of the different debris flow clough, must unify their own characteristic to conduct the research.This article take HaiLiu clough debris flow which influence the DaGangshan hydroelectric power station at construction and the movement as a model. Firstly to affected each kind of factor which the debris flow formed to carry on the elaboration, mainly research HaiLiu clough debris flow formation mechanism, analyzed the HaiLiu clough debris flow material origination, the landform characteristic as well as the starting mechanism. Simultaneously it has also suitably considered the function that the human factor in the Hailiu clough debris flow forming process. Through the research, we consider the HaiLiu clough is a typical coherent debris flow clough, as soon as the total quantity in hundred years meet may reach 3.71×10~6m~3. And the article has also conducted the research to the HaiLiu clough debrise flow disaster government, and proposed the corresponding preventing and controlling measure, adopted including has obstructed, the platoon leads the improvement plan which unified with the bank supports and protections. Finally,put forward the proposal to the HaiLiu clough debris flow early warning forecast.