Study on Test Criterion of Dynamic Penetration About Dynamic Compaction Ground of Artificial Broken Stone

The evaluation method of broken-stone soil according to relative standards by means of dynamic penetration is clearly specified. But it is only fit for natural broken-stone soil. This test standard is suitable for artificial broken-stone soil is calling in question. Abased on dynamic compaction construction project of Shiyan 500 kV converting station, this question is studied by contrast on the loading test and dynamic penetration test in same location. It is found that the criterion specified in standards is higher than the real one, and that the error of deformation parameters is higher than loading capacity one.