| 无粘性粗颗粒土的渗透性研究 |
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| 引用本文： | 罗林峰,张林洪,杨松,靳娟娟,魏业清.无粘性粗颗粒土的渗透性研究[J].云南水力发电,2008,24(1):22-25. |
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| 作者姓名： | 罗林峰 张林洪 杨松 靳娟娟 魏业清 |
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| 作者单位： | 1. 昆明理工大学电力工程学院,云南,昆明,650051
2. 昆明理工大学建筑工程学院,云南,昆明,650224 |
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| 摘 要： | 影响无粘性粗颗粒土渗透性的因素有很多，其中孔隙比是其中的主要因素。为了研究影响无粘性粗颗粒土渗透系数的因素，利用某土石坝的3种材料，进行了在6种不同级配情况下的12组大型常水头渗透试验，探讨了颗粒大小、不均匀系数Cu和曲率系数Cc、孔隙比与粗颗粒土渗透性的关系，建立了3种材料渗透系数和孔隙比之间的线性关系。
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| 关 键 词： | 粗颗粒土 渗透系数 孔隙比 级配 |
| 文章编号： | 1006-3951(2006)01-0022-03 |
| 修稿时间： | 2007年9月26日 |
Study on Permeability of Cohesionless Coarse-grained Soil |
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| LUO Lin-feng,ZHANG Lin-hong,YANG Song,JIN Juan-juan,WEI Ye-qing.Study on Permeability of Cohesionless Coarse-grained Soil[J].Yunnan Water Power,2008,24(1):22-25. |
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| Authors: | LUO Lin-feng ZHANG Lin-hong YANG Song JIN Juan-juan WEI Ye-qing |
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| Affiliation: | LUO Lin-feng,ZHANG Lin-hong,YANG Song ,JIN Juan-juan,WEI Ye-qing( 1. College of Electric Power Engineering, Kunming University of Science and Technology, Kunming 690051, Yunnan. China; 2. College of Civil Engineering, Kunming University of Science and Technology, Kunming 650051, Yunnan, China) |
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| Abstract: | Many factors have influence on permeability of cohesionless coarse - grained soil, in which void ratio is the major one. In order to study the factors that have influence on coefficient of permeability of cohesionless coarse - grained soil 12 groups of test samples taken from 3 types of soil of an earth - rock fill dam were tested under 6 different gradations. The tests gave some idea of grain size, uniformity coefficient Cu, curvature coefficient Cc and relationship between void ratio and permeability of coarse - grained soil. The tests have also established the linear relationship between permeability coefficient and void ratio for 3 soil materials. |
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| Keywords: | coarse- grained soil permeability coefficient void ratio grading |
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