| 高液限红粘土路堤碾压工艺试验研究 |
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| 引用本文： | 查旭东,王宏祥,万剑平.高液限红粘土路堤碾压工艺试验研究[J].长沙交通学院学报,2011,27(1):1-6,13. |
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| 作者姓名： | 查旭东 王宏祥 万剑平 |
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| 作者单位： | 长沙理工大学交通运输工程学院;湖南省交通科学研究院; |
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| 基金项目： | 国家自然科学基金项目(51078045) |
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| 摘 要： | 碳酸岩风化形成的高液限红粘土具有天然含水率高、孔隙比大及结构性强等特点,施工时要达到规范要求的压实度较为困难.为此,依托湖南省洞新高速公路的建设,对红粘土填料的含水率、碾压机械和松铺厚度等多种工况组合下的现场碾压进行了试验研究.试验结果表明,使用凸块振动碾碾压3~5遍、松铺厚度控制在25~30 cm及土体含水率控制在大于最佳含水率（3%~6%）时,现场碾压效果较好,可为高液限红粘土路堤的碾压工艺提供借鉴.
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| 关 键 词： | 红粘土 路堤 含水率 碾压 压实度 凸块振动碾 |
Experimental research on roller compacted process for red-clay embankment with high liquid limit |
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| ZHA Xu-dong,WANG Hong-xiang,WAN Jian-ping.Experimental research on roller compacted process for red-clay embankment with high liquid limit[J].Journal of Changsha Communications University,2011,27(1):1-6,13. |
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| Authors: | ZHA Xu-dong WANG Hong-xiang WAN Jian-ping |
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| Institution: | ZHA Xu-dong1,WANG Hong-xiang1,WAN Jian-ping2(1.School of Traffic and Transportation Engineering,Changsha University of Science & Technology,Changsha 410004,China,2.Hunan Communications Research Institute,Changsha 410007,China) |
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| Abstract: | Because the red-clay with high liquid limit from the weathering carbonatite has the properties,such as high natural moisture content,large void ratio and strong structural property,etc.,it is more difficult to meet the compactness requirements of specifications in construction.For this reason,relying on the construction of Dong-xin Expressway in Hunan Province,the experimental study of field roller compaction for the red-clay filler was carried out under the multiple combinations of working condition includ... |
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| Keywords: | red-clay embankment moisture content roller compaction compactness bumping vibration roller |
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