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| 堆石体粒径特征对其渗透性的影响 | |
| 引用本文： | 邱贤德,阎宗岭,刘立,王辉.堆石体粒径特征对其渗透性的影响[J].岩土力学,2004,25(6):950-954. |
| 作者姓名： | 邱贤德 阎宗岭 刘立 王辉 |
| 作者单位： | 1. 重庆大学,西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400030 2. 重庆交通科研设计院,重庆,400067 3. 西华大学,土木与建筑工程系,四川,成都,610039 |
| 基金项目： | 重庆市科委应用基础研究资助项目,渝科发计字[2001]74号(编号:29) |
| 摘 要： | 堆石体属于典型的多孔材料,其渗透特性与颗粒的形状、大小及分布特征关系密切。研究表明,在渗流速度较大时应对达西定律加以修正。结合堆石体颗粒的概率统计分布模型,建立了堆石体颗粒含量与渗透系数之间的经验关系式,把渗透率和堆石体的粒径特征结合起来。在工程设计中可以通过合理调整堆石体的粒径级配,达到控制其渗透能力的目的。 |
| 关 键 词： | 堆石体 多孔介质 渗透 级配 粒径 |
| 文章编号： | 1000-7598-(2004)06-0950-05 |
| 修稿时间： | 2003年1月7日 |
Effect of particle-size characteristics on seepage property of rockfill |
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| QIU Xian-de,YAN Zong-ling,LIU Li,WANG Hui.Effect of particle-size characteristics on seepage property of rockfill[J].Rock and Soil Mechanics,2004,25(6):950-954. | |
| Authors: | QIU Xian-de YAN Zong-ling LIU Li WANG Hui |
| Abstract: | Rockfill is a typical porous medium, and its seepage is closely related to the particle shape, particle-size and its distributing characteristics. It is proved through experimental research that the Darcy law should be revised to adapt to high seepage velocity. And an empirical formula is established to describe the relation between particle content and seepage coefficient through probability statistical distributing characteristics of particles in rockfill. So the seepage rate and statistical characteristics of rockfill particles can be organically combined together. Changing the gradation rationally is a feasible method to control the seepage ability of rockfill in engineering. |
| Keywords: | rockfill porous medium seepage gradation particle-size |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |