Page 3 - Dynamic Compaction Brochure

FEATURES OF DYNAMIC COMPACTION

High Energy

Ÿ Energy ranges from 10kJ to 25kJ
Ÿ Compaction loads up to 300 tonnes (3000 kN)
Ÿ Higher Energy results in higher Maximum Dry
Density than conventional rollers Impact
Dry Compaction
Ÿ Higher Energy allows for compaction over a Density
wider range of moisture contents than (kg/m )
3
Conventional
conventional compactors. Compaction
Required
Density

Moisture Content (%)

Depth Of Inuence
Ÿ Contact stress : 300kPa – 1200kPa
Ÿ Contact area : Dynamic Compaction Mass radius not
referenced to centre of drum – greater contact area

d d
3d

Uniform density proile Stepped density proile

Load Duration High Operating Speeds

Ÿ Dynamic Compactors operate at speeds of up
to 5 times faster than conventional compaction
equipment.
Ÿ
They are capable of compacting up to 10 times
Soil Response Vibratory Rollers greater volume per day than conventional
compaction equipment.

Impact Rollers

0.02s Duration of load (s) 0.12s 8