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中国沙漠 ›› 2004, Vol. 24 ›› Issue (5): 657-661.

• 实验研究 • 上一篇    

黄土压实的影响因素研究

刘小伟1, 谌文武1, 梁收运1, 韩文峰1,2   

  1. 1. 兰州大学 资源环境学院, 甘肃 兰州 730000;
    2. 天津城市建设学院 土木工程系, 天津 300381
  • 收稿日期:2003-10-12 修回日期:2004-02-09 出版日期:2004-10-20 发布日期:2004-10-20
  • 作者简介:刘小伟(1976-),男(汉族),助教,主要从事岩土工程与地质灾害等方面的教学和研究工作。E-mail:liuxw@lzu.edu.cn
  • 基金资助:
    西部交通建设科技项目'黄土路基压实技术'(2001-318-000-18)资助

Influencing Factors of Loess Compacting

LIU Xiao-wei1, CHEN Wen-wu1, LIANG Shou-yun1, HAN Wen-feng1,2   

  1. 1. School of Resources and Environment, Lanzhou University, Lanzhou 730000, China;
    2. Department of Civil Engineering, Tianjin College of Urban Construction, Tianjin 300381, China
  • Received:2003-10-12 Revised:2004-02-09 Online:2004-10-20 Published:2004-10-20

摘要: 黄土在我国广泛分布, 黄土路基沉陷变形是黄土地区公路的主要病害之一。解决路基沉陷变形的核心是提高路基土的压实密度。通过常规土工试验、标准重型击实试验、显微电镜, 从宏观到微观, 定性定量分析了影响黄土压实的因素。指出黄土的粒度成分、显微结构、含水率、击实功率是影响黄土压实的主要因素。

关键词: 黄土, 粒度成分, 显微结构, 含水率, 击实功率, 压实

Abstract: Loess widely distributes in China and the subsidence deformation of loess roadbed is one of the common highway disasters in loess areas. Improving the compacting density is the key to solve this question. From macroscale and microscale, the factors that influence compacting are analyzed qualitatively and quantitatively. It is concluded that granulometric composition, microstructure, specific moisture content, compacting power efficiency are the main factors influencing loess compacting.

Key words: loess, granulometric composition, microstructure, specific moisture content, compacting power efficiency, compacting

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