基于HEC-HMS模型的不同雨型下泥石流清水流量特征探讨

发布时间：2018-06-20 23:12

本文选题：HEC-HMS + SCS　；参考：《工程地质学报》2017年04期

【摘要】：基于HEC-HMS模型,选择SCS及Kinematic wave理论为基础构建了曾达沟泥石流的流域模型,并设置不同类型的12种降雨模型进行了流量计算以探讨不同降雨类型下泥石流清水流量的特征。结果显示泥石流沟口清水流量同降雨峰值到来时间、降雨集中程度(降雨模型幂次数)分别线性正相关;流量峰值延时(沟口峰值流量到来时间相较峰值雨强时间的延后值)同降雨峰值到来时间、降雨集中程度分别呈二次相关,相关关系主要为负相关,但随着第三变量的增加,相关关系不再单调;对前后两组各3个变量进行了二元多次方程拟合,拟合效果良好;将计算结果同生产中常用的推理公式法的计算结果进行对比,并分析了两者的区别及优缺点。
[Abstract]:Based on HEC-HMS model, the basin model of Zendagou debris flow was constructed based on SCS and Kinematic wave theory, and 12 kinds of rainfall models were set up to calculate the flow of debris flow under different rainfall types. The results show that the flow of clear water at the gully of debris flow is linearly positively correlated with the arrival time of peak rainfall and the degree of rainfall concentration (power number of rainfall model). The peak flow delay (the delay between the arrival time of the peak flow at the gully and the time of the peak rain intensity) has a quadratic correlation with the arrival time of the peak rainfall and the degree of rainfall concentration. The correlation is mainly negative correlation, but with the increase of the third variable, The correlation relation is no longer monotone, the two groups of three variables are fitted with binary multiple equations, and the results are compared with the results of the reasoning formula method commonly used in production. The differences, advantages and disadvantages of the two are also analyzed.
【作者单位】：地质灾害防治与地质环境保护国家重点实验室(成都理工大学);中国地质科学院探矿工艺研究所;四川大学建筑与环境学院;西藏自治区地质环境监测总站;
【基金】：“藏南罗布莎铬铁矿集中开采区地质环境调查”中国地质调查局项目(DD201600338)资助
【分类号】：P642.23

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