Now China main use the dynamic sounding equipment. The machine is China national regulation the penetrometer and spec.
type Hammer weight(kg) Distance of Drop (CM) penetrometer Penetrometer
Index Penetration pole out diameter(mm).
Light 10 50 Penetration angle:60℃
tapered bottom area
12.6cm2 N10 Penetration 30CM hammer times 25
Name: Marry Li& Summer Zhu& Eric Yin
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