沙漠腹地高速公路风积沙压实特性与数字化技术研究  

Research on Compaction Characteristics and Digital Technology of Eolian Sand on Expressway in Desert Hinterland

作　　者：袁红伟 王宏刚 王盛兴 李征 YUAN Hong-wei;WANG Hong-gang;WANG Sheng-xing;LI Zheng(The No.6 Engineering Company of CCCC Second Highway Engineering Co.Ltd.,Xi'an 710000,China;Xi'an Huachuang Civil Engineering Science&Technology Co.Ltd.,Xi'an 710000,China)

机构地区：[1]中交二公局第六工程有限公司,西安市710000 [2]西安华创土木科技有限公司,西安市710000

出　　处：《公路》2025年第2期66-73,共8页Highway

摘　　要：以某高速公路沙漠路段为工程实例,深入探讨沙漠腹地高速公路上风积沙的压实特性与数字化技术的研究现状。风积沙的颗粒结构与承载比呈现出正相关变化关系,相关击实曲线的变化趋势基本保持一致,呈现了横向的“S”型变形趋势。试验段风积沙粒径主要分布在0.075~0.25 mm范围内,占总比重的95%左右,粒径超过0.5 mm的粗砂粒含量较少,粉黏粒含量则小于5%;随着含水率的增加,风积沙的最大干密度呈现先减小后增大再减小的变化趋势。Based on a desert section of an expressway as the practice background,the compaction characteristics and the research status of digital technology of upwind sand on the expressway in the desert hinterland are discussed.The grain structure of aeolian sand has a positive correlation with the bearing ratio,and the trend of the correlation compaction curve is basically the same,showing a transverse"s"shape deformation trend.The particle structure of aeolian sand is positively correlated with the load bearing ratio.The particle size of the aeolian soil in the test section is mainly in the range of 0.075~0.25 mm,accounting for about 95% of the total proportion.The coarse sand content is less than 0.5 mm,and the silty clay content is less than 5%.With the increase of water content,the dry density of aeolian sand decreases gradually.Under the same compaction condition,the maximum dry density of aeolian sand shows a decreasing trend.

关 键 词：沙漠公路 风积沙 压实特性 数字化 

分 类 号：U416.166[交通运输工程—道路与铁道工程] U495