Page 2 - Dynamic Compaction Brochure

Dynamic Compactors have developed signicantly since those early days.
The 5 sided 15kJ and 3 sided 25kJ Impact Compactors are depicted below.

HOW DYNAMIC COMPACTION WORKS

Dynamic Compaction is the transfer of energy into the soil by means of the lifting and falling motion of a
non-circular rotating mass. Dynamic Compaction is thus a process of transferring impact loads similar to
those found in Dynamic Compaction on a continuous basis

E25 = m.g.h
= 12.5 * 9.81 *0.210
= 25.7 kJ

E15 = m.g.h
= 12 * 9.81 *0.136
= 16.0 kJ