Empirical Relationships for Debris Flows
Empirical Relationships for Debris Flows
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DOI：
10.1023/a:1008064220727
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发表时间：
1999
期刊：
影响因子：
3.7
通讯作者：
D. Rickenmann
中科院分区：
文献类型：
--
作者：
D. Rickenmann
泥石流危险性的评估一直依赖于半定量的方法。由于泥石流过程的复杂性，泥石流的数值模拟模型在实际应用中仍然有限。因此，本文概述了可用于估计泥石流行为最重要参数的经验关系。在可能的程序中，在评估最大泥石流量之后，可能会估计峰值流量、平均流速、总行程距离和风机上的跳动距离。将几个经验方程的适用性与现有的现场和实验室数据进行了比较，并使用尺度考虑来讨论参数在大范围内的变异性。除了提倡实地勘察和尽可能查找历史事件外，还就实践工程师应用所呈现的关系提出了一些建议。
The assessment of the debris flow hazard potential has to rely on semi-quantitative methods. Due to the complexity of the debris-flow process, numerical simulation models of debris flows are still limited with regard to practical applications. Thus, an overview is given of empirical relationships that can be used to estimate the most important parameters of debris-flow behavior. In a possible procedure, an assessment of a maximum debris-flow volume may be followed by estimates of the peak discharge, the mean flow velocity, the total travel distance, and the runout distance on the fan. The applicability of several empirical equations is compared with available field and laboratory data, and scaling considerations are used to discuss the variability of the parameters over a large range of values. Some recommendations are made with regard to the application of the presented relationships by practicing engineers, apart from advocating field reconnaissance and searching for historic events wherever possible.