Testing of Effect of Dynamic Compaction in a Mountain Area
During the dynamic compaction,multiple testing methods are used to verify the effectiveness of the ground improve-ment.However,the duration of some of the testing methods is long.How to quickly and effectively determine the effectiveness of dynamic compaction,to provide preliminary testing results in a timely manner,and to shorten the testing cycle have become a problem that needs to be resolved in on-site testing work.Based on the analysis of the reference test project for the dynamic compaction in a mountainous area,different detection methods such as standard penetration test,shallow plate load test on the treated soil,and multi-channel transient surface wave test were used on site to evaluate the bearing capacity and effectiveness of the dynamic compaction.And by comparing and analyzing the surface wave test results before and after dynamic compaction in each experimental area,combined with the standard penetration test results,the relationship between the shear wave velocity and soil compaction degrees in the plain fill experimental area is obtained,providing a good basis for the large-scale dynamic compaction construction in the later stage.
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