With the advantage of economic, good effect and wide range of application, the dynamic compaction is widely used in ground construction. According to the technical regulations, ramming value measurement method is currently applied in real-time compaction degree detection, but the existing methods all have their defects. To solve the situation, come out the idea using the rammer impact acceleration to detect the compaction degree. Firstly, set up dynamic compaction math model and confirm the connection between acceleration and ramming times through theoretical analysis, then build the test model based on similarity theory, using experiment to prove the hypothesis, finally come to the conclusion that the relative change percentage of single ramming value and peak acceleration are associated, put forward the assumption detecting real-time compaction degree based on impact acceleration, thus provide a new way to detect the real-time compaction during the construction.
Key words
dynamic compaction /
acceleration /
real-time detection
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