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《Research of Soil and Water Conservation》 2007-05
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Study on the Granularity Characteristic of Ancient Accumulation Matter

CHEN Wei REN Guang-ming (Environment and Civil Engineering College of Chengdu University of Technology,Chengdu 610059,China)  
The authors took the open country practical investigation and the room tests as foundation,and conducted the analysis rearch on the granularity characteristic of ancient accumulation matter from two aspects which is granularity rank and the gran- ularity curve,the result shows that:(1)the content of gravel and powder sand in the ancient accumulation matter is high;(2)in the frequency curve of the peak value appears in the scopes of-2~0Φ,5~6Φand 7~8Φ;the beginnings and ends of the accu- mulation curve is to be steeper and middle is gentle,and appears two obvious inflection points;according to the curve of proba- bility,the content of the rolls component and the aerosol component is higher.
【CateGory Index】: P642
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