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Mountains of debris flow is a common natural disasters, which often occur in the small mountain Gully. included is a lot of sand and boulders, concrete blocks which the solid-liquid two-phase fluid, geological features of hydro-meteorological soil vegetation and other natural factors and human factors and the role of the comprehensive results Mountain is the result of the deterioration of the environment. Huge debris flow hazards. Mainly to the destruction of towns, villages, mining, transport water conservancy and hydropower project, farmland and the safety of mankind. Therefore, the debris flow control is important

The mud-rock flow is our country mountainous area common one kind of natural disaster it often occurs in the mountainous area rill ditch, is one kind contains the massive grit clod and the boulder liquid-solid two fluids, is the geological landform hydrometeorology soil vegetation and so on natural factor and the human factor grand total function result, is the mo