10 Ton Steel Ram
with Mechanical Release
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30 Ton Steel Ram
with Hydraulic Release
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Variable (20 to 35 Ton) Heavy Welded H Piles System, Cabled
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40 Ton Steel Ram
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APPLE variable (5-40 Ton) System
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10 Ton Cabled System Made of
2 Air Steam Rams
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Drop Hammer on CFA
(auger cast-in-place) Pile
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20 Concrete Ram Ton with Mechanical Trip
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2 Ton Cabled System on CFA (auger cast-in-place) Pile
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Small Concrete Ram with Trip
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20 Ton Hydraulic Hammer
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Various drop weight systems maybe used for testing drilled shafts, bored piles, and auger cast-in-place (CFA) piles. The hammer mass may be made out of steel or heavily reinforced concrete, and is usually guided to assure concentric impact. It is lifted, supported by a frame, and then released either by a mechanical trip device, by cutting a support cable, or by releasing hydraulic jaws. These systems may test pile or shaft capacities 50 to 100 times the hammer weight. The use of plywood cushioning protects the shaft from damage during impact. |
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