泥石流堆积模式的试验研究

Experimental research on prediction model of debris flow deposition

泥石流的堆积形态和范围是泥石流危险区划分的重要参数，它们不仅与泥石流体浓度（Cvt）、下游流路坡度（Qu）有关，还与流通坡度（Qc）和冲出量有关。本文通过小型水槽试验，求得了泥石流堆积范围与形态比的堆积模式，并根据野外测量的堆积形态进行了泥三流体浓度的计算和验证，该模式可为泥石流防治工程的设计提供有科学依据的参数。

The shape and the range of deposition of debris flow are important parameters forits dangerous area division. They are relative not only to debris flow density and slope-down,but also to flow slope and volume of the flow. Based on an experiment with srnall flume thedeposition range and shape ratio are obtained. According to the shape measured in field thedensities of the debris flow are calcu1ated and verified. The model can be used to engineeringdesign for debris flow's prevention and control with scientific basis.