期刊论文

中文

长沙理工大学学报(自然科学版)

1672-9331

2012

9

1

12-16+84

10.3969/j.issn.1672-9331.2012.01.002

国家自然科学基金资助项目（51078045）；

本校为第一机构

为了评价动态圆锥贯入仪（DynamicConePenetrometer，简称DCP）快速检测土体压实性能的合理性，选取湖南省典型的红粘土填料，室内制作6种不同含水率和3种不同压实度的土体压实试件，采用DCP快速检测了土体贯入度．同时，还进行了PFWD动模量和浸水前后CBR对比试验．回归分析表明，贯入度与含水率和压实度之间呈显著的多元线性关系，而与动模量和CBR值之间具有良好的幂函数关系．在压实度相同的情况下，当含水率小于最佳含水率时，贯入度随含水率的增加呈线性减小；而当含水率大于最佳含水率时，贯入度随含水率的增加呈线性增加．在含水率相同的条件下，贯入度随压实度增加呈线性减小,因此，DCP测...

In order to evaluate the rationality of rapid testing of soil compaction performance by using Dynamic Cone Penetrometer（DCP）, the typical red-clay filler in Hunan Province was selected to make the soil compaction specimens with 6 kinds of different moisture con- tent and 3 kinds of different compactness in the laboratory. The soil penetrations were rap- idly tested with the DCP, and the PFWD dynamic moduli and the CBRs before and after soaking were also tested. The regression analysis show that there is a significant multivari- ate linear rel...