泥石流的容重和流速是泥石流运动学研究的主要内容之一，也是泥石流防治工程设计必备的基本参数。在分析研究国内多种泥石流容重与流速计算公式的基础上，开展柿树沟泥石流调查与试验。经资料分析研究对比推荐适宜本区的计算公式。经验证，其容重公式计算结果与试验结果吻合较好；选用修正的曼宁泥石流流速计算公式计算结果与实际调查资料基本一致，且公式具有涉及参数较为全面、具有一定普遍意义、适用性强等特点。推荐的泥石流容重与流速计算公式适用于本区，从而为本区后期泥石流防治工程设计提供了地质依据。%the density and velocity of debris flow is one of main contents of debris flow kinematics, and also basic parameter for prevention of debris flow. Based on studies on many calculation formulas of the density and velocity, a debris flow survey and test is carried on in Shishu. After study and analysis on data, a proper calculation formula is recommended. The density formula was verified, calculation result has good agreement with the test results; the calculation results of chosen Manning debris flow velocity formula have basically agreement with actual survey data, and the formula has comprehensive parameters, common significance and applicability. The recommended formula is appropriate for this area, and it provides geological basis for engineering design of debris flow prevention.
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