舒安平,张欣,唐川,潘华利.不同坡度条件下非均质泥石流堆积过程与特征[J].水利学报,2013,44(11): |
不同坡度条件下非均质泥石流堆积过程与特征 |
Analysis on the deposition processes and characteristics of non-homogeneous debris flow |
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DOI: |
中文关键词: 非均质泥石流 坡降 容重 堆积量 |
英文关键词: non-homogeneous debris flow hydraulic gradient specific weight gravity deposition |
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中文摘要: |
陡峻的地形、大量松散的固体物质条件、短时强降水构成了泥石流发生的三大要素,同时也是直接影响泥石流堆积数量与规模的重要因素。通过改变泥石流流通区、堆积区不同区段的坡度对非均质泥石流堆积过程进行室内模拟实验,探究流通区、堆积区不同坡度条件下非均质泥石流的堆积厚度、面积等特征值的变化特征,即随着流通区坡度增大,泥石流堆积厚度减少,而堆积面积和体积均增大,并进一步建立了不同坡度因子与泥石流堆积数量之间的关系,为预测不同坡度地形条件下泥石流堆积规模提供科学依据。 |
英文摘要: |
Basic conditions of debris flow formation generally include steep slope, loose solid particle and heavy rain, which are influenced on the deposition of non-homogeneous debris flow. A series of deposition
simulation experiments for non-homogeneous debris flow were carried out in lab. By means of the changing of hydraulic gradient and specific weight gravity,the influences of gradients on the deposition of non-homogeneous debris flow were studied. Furthermore, the meaning relations between the deposition and gradients were established. The results above are significant for predicting deposition scales and disasters control project for debris flow. |
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