沙漠路基风积沙特性和压实机理研究  

Study on Aeolian Sand Properties of Desert Subgrade and Compaction Mechanism

作　　者：薛成 李洪文 胡冰 

机构地区：[1]中交二公局华盟公司,西安市710065

出　　处：《公路》2013年第6期20-24,共5页Highway

摘　　要：风积沙广泛分布于沙漠地区,储量非常丰富、取材十分方便,成为修筑路基的主要材料。风积沙颗粒松散无黏性,具有颗粒细、天然含水率小、保水性差等特性。其整体强度与稳定性对通车后使用寿命将起到关键作用,但其压实一直是施工中的难题,风积沙的压实控制成为修筑沙漠公路之关键所在。文中以榆佳高速公路路基实体工程为对象,通过研究分析,探讨出较为合理地碾压控制方法。Aeolian sand is widely distributed in desert areas. Because of its abundant reserve and easy obtaining,it becomes the main material used for roadbed. Due to its loose and Cohesionless particles, aeolian sand has some obvious short comings： fine-grained, small natural content, and bad water retention. Its overall strength and stability play a key role in service life, however the compaction is always a difficult problem in the construction. Aeolian sand compaction technology becomes crucial during desert highway construction. The Author takes Yujia Highway roadbed engineering as the research object, through research and analysis, to explore a reasonable compaction control method.

关 键 词：道路工程 风积沙 特性 压实机理 控制方法 

分 类 号：U416.1[交通运输工程—道路与铁道工程]