作　　者： ; ; ; (龚海科）;

机构地区： 长安大学公路学院特殊地区公路工程教育部重点实验室

出　　处： 《河北工业大学学报》 2006年第3期112-117,共6页

摘　　要： 总结了风积沙的形成条件及内蒙古省际通道工程所在地区风积沙的基本物理力学性质,并在该工程建设中收集的大量有关风积沙的试验数据和工地现场实践经验总结的基础上,发现粒径d<0.074的细粒组分含量对最大干密度试验方法和现场压实施工工艺及质量控制措施有显著影响,提出了以粒径d<0.074的细粒组分含量和是否具有塑性成分作为主要评价指标将风积沙分为I-1、I-2、II、III4种类别及确定相应类别最大干密度的标准试验方法,总结了风积沙的压实特性,最后介绍了不同种类的风积沙的干法湿法施工工艺,为该地区同类地区的工程建设提供了可借鉴的经验. Based on the data from laboratory test and practical experience of aeolian sand in an expressway construction situated in Inner Mongolian, this paper symmarized the physical and mechanical property oflnner Mongolia aeolian sand and got a discovery that the quanlity of grain with d 〈 0.074 mm in Aeolian sand was the most important substantial part in experiment of pdmax and construction means. Based on this discovery, the author proposed to classify the aerolian sand into four varieties Ⅰ-1、Ⅰ-2、Ⅱ、Ⅲ and the proper experiment method to determine the maximum dry density of different type of aerolian sand, Finally, three filling methods and practical construction process to fill subgrade of expressway using aerolian sand were then generalized and concluded. This would give some practical and construction guides to build the other projects in aeolian sand region.

关 键 词： 风积沙 工程分类 最大干密度 压实工艺

领　　域： [交通运输工程]