| 稀性泥石流容重计算的改进方法 |
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| 引用本文： | 余斌.稀性泥石流容重计算的改进方法[J].山地学报,2009,27(1). |
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| 作者姓名： | 余斌 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都,610059 |
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| 摘 要： | 稀性泥石流的沉积样的粒度不能反映稀性泥石流的实际粒度,过渡(亚粘性)泥石流的沉积样的粒度也不能完全反映亚粘性泥石流的实际粒度.通过分析稀性泥石流和亚粘性泥石流沉积样中的粗颗粒和细颗粒组成的百分比与稀性泥石流和亚粘性泥石流的实际粒度分布关系,得出稀性泥石流以细颗粒为主,>5 mm的粗颗粒的百分比较小,大多数稀性泥石流的沉积样中这部分粗颗粒百分含量被夸大.去掉稀性泥石流沉积样中>5 mm的粗颗粒可以修正被夸大的粗颗粒比例,由此粒度分布和修正公式计算的稀性泥石流容重与实际容重吻合较好.去掉亚粘性泥石流沉积样中>20 mm的粗颗粒,可以修正亚粘性泥石流的粒度分布,由此粒度分布计算的亚粘性泥石流容重与实际容重吻合更好.
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| 关 键 词： | 稀性泥石流 改进 容重 粒度分布 百分含量 |
Research on the Improved Calculating Density of Less Viscosity Debris Flows |
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| YU Bin.Research on the Improved Calculating Density of Less Viscosity Debris Flows[J].Journal of Mountain Research,2009,27(1). |
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| Authors: | YU Bin |
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| Institution: | State Key Laboratory of Geohazard Prevention;Chengdu University of Technology;Chengdu 610051;China |
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| Abstract: | The particle distribution of the deposition of less viscosity debris flow is not the real particle distribution as the sorting of less viscosity of debris flow. The deposition of transitional debris flow is close to its real particle distribution as the transitional debris flow is weak sorting. Comparing the particle distributions of depositions of less viscosity and transitional debris flows with their real particle distributions,we get the fine particle is the main part of less viscosity debris flow,and t... |
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| Keywords: | less viscosity debris flows improved density particle distribution percentage |
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