基于DCP的路基压实度及承载能力评定

Evaluation of the compaction and capacity of the subgrade based on DCP

通过在试验室内对不同压实度的路基的土样进行动态圆锥贯入仪(DCP)测试,得出平均贯入比率PR与压实度之间的关系,并在现场进行测试,得出现场路基的PR平均值、CBR值、弹性模量E与压实度。通过测试结果分析,认为DCP可以快速地对路基压实度乃至承载能力进行检测和评价。

Through test on the different degree of compaction of soil subgrade with dynamic cone penetrometer（DCP）,arrive at the relationship between the average penetration rate of PR and the degree of compaction,and tested in the field,abtained the average PR,CBR values,elastic modulus E and the degree of compaction of the subgrade.Through the analysis to the test result,we considered that the DCP can detest and evaluate the compactness even the capacity of subgrade quickly.