云南原状红黏土强夯法地基处理试验研究

Experimental Study on Foundation Treatment of Undisturbed Red Clay by Dynamic Compaction in Yunnan Province

文中以云南泸西绿色低碳示范产业园建设项目地基处理为例,介绍了研究区的工程概况和地质背景,对强夯能级5000kN·m原状红黏土地基强夯试验进行了分析,选取同一试验区内深度相近夯前钻孔取样与夯后钻取进行对比。结果表明,强夯后,孔隙比明显较小,孔隙比减小0.05~0.24,夯后原状红黏土压缩模量增大,压缩模力量增加0.3~3.5。

The study area is located in the karst landform unit of low Zhongshan hills and gentle slopes and denudation residual hills.Based on the dynamic tamping test(dynamic tamping level of 5000kN·m)of the original red clay foundation in the study area,combined with the construction technology of dynamic tamping,indoor geotechnical test and in-situ test,the effect of using 5000kN·m for the original red clay foundation treatment is obvious.Can meet the design requirements,and meet the relevant specifications.