华东交通大学学报2017，Vol.34Issue(3)：34-39,6.
含红砂岩砾粒红黏土路基碾压特性及效果研究
Study of Compaction Characteristics and Effect of Red Clay Roadbed Containing Red Sandstone Gravel
摘要
Abstract
Based on the actual demand for engineering projects, this study explored the characteristics of red clay containing red sandstone gravel grains in Ganzhou filling as roadbed filling. In the test,the roller compaction test was carried out by using vibratory rolling, impact rolling and combined rolling. The causes of different com-paction effects were analyzed with combination of dynamic stress monitoring. At the same time,the environmental vibration caused by roller compaction was monitored during the test,and the safe distance of the rolling vibration was analyzed. In the test,EVD and K30 were adopted to detect the effect of rolling simultaneously in order to obtain the relationship between them,which may provide reference for the detection of red clay roadbed contain-ing red sandstone gravel. The results showed that the suitable depth for the red clay containing red sandstone gravel in Jiangxi province is 40 ~ 50 cm. It is better to use impact rolling until the compactness of roadbed reaches 80%,and then the vibration rolling is adopted. The vibration safety distance of rolling compaction con-struction is 25m. For the compaction test of red clay containing red sandstone gravel,the value of K30 can be calculated by formula K30=2.03EVD+23 during the initial inspection of EVD.关键词
红黏土/碾压/虚铺厚度/压实度/振动Key words
red clay/compaction/virtual paving thickness/degree of compaction/compaction vibration分类
建筑与水利引用本文复制引用
杨园野,丁海滨,赵秀绍,方焘,郭国君..含红砂岩砾粒红黏土路基碾压特性及效果研究[J].华东交通大学学报,2017,34(3):34-39,6.基金项目
江西省岩土工程基础设施安全与控制重点实验室(20161BCD40010) （20161BCD40010）
国家自然科学基金资助项目(51668018) （51668018）
