摘要
针对常张高速公路采用冲击压实技术压实土石混填路基的问题,选取试验段进行了不同虚铺厚度路基的施工工艺及质量控制等试验研究,提出了虚铺厚度、冲压遍数、冲压沉降率(单级沉降量)、填料最大粒径等施工控制参数.其中不同虚铺厚度填料有相应的最佳碾压遍数,并从技术经济的角度提出了最佳的虚铺厚度及其碾压遍数,并建议施工控制以沉降率为主.图3,表4,参9.
The soil-rock foundation was applied in highway of Changde-Zhangjiajie, and in order to assure soil-rock foundation quality by shocking and compaction test,different virtual height of soil-rock foundation was constructed and it's quality was controlled for in-situ test,it was considered as parameter for virtual height,shocking and compaction quantities,shocking and compaction sediment rate and maximum diameter of packing materials.The test shows that optimum shocking and compaction quantities is different to different virtual height of packing materials,and optimum virtual height and shocking and compaction quantities is put forward.3figs.,4tabs.,9refs.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2005年第2期62-64,75,共4页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家高技术研究发展专项经费资助项目(2003AA601090)
建设部"十五"科技攻关基金资助项目(02-2-2.10)
关键词
道路工程
土石混填料
冲击压实试验
虚铺厚度
碾压
Road engineering
soil-rock foundation packing material
shocking and compaction test
virtual height
optimum shocking
