Modern pile drivers are quiet and have many advantages compared to traditional pile drivers which use a large weight to strike the pile. For instance the greatest advantage is that vibratory hammers can drive and extract piles much faster. Beside this, they are small, very quiet and light weight, environmental friendly. So they can drive piles much more quickly, extract old piles out of the ground, can be used underwater, are lightweight, protect the environment (especially animal life), can be used in close proximity to residential areas without noise complaints, and are small and easy to ship. Moreover, in some vibratory hammers vibration can be fully controlled, which is a necessity if the work has to be carried out in residential or historical places.
How Does Vibro Hammer Work?
OMS Vibro Hammer Machines also known as vibro drivers and vibratory hammers work on the idea of reducing the resistance of the ground with vibration and by changing the formation of the ground. The vibratory piling machine transfers vertical vibrations to the pile via the hydraulic clamp. This, in turn, transfers vibration to the ground which reduces the friction between the pile and the ground allowing the pile to be driven or extracted with less force. The pile is driven into the ground by a combination of the vibrators weight and the centrifugal force it produces.
If you are interested in soil improvement, you may want to read How to Install Wick Drain top feed/bottom feed vibroflotation systems and stone column equipment you can read about Ground Improvement Techniques.
Types of Vibratory Hammers
Working Principle of Vibratory Pile Drivers
Working Principle of Resonance-Free Vibratory Hammers
The “Phase Shifter Motor” patented by OMS, displaces the eccentric masses and allows adjustment of the vibration level. Eccentric masses can be adjusted from 0 to 180°. The maximum vibration level is reached at 180°.
Working Principle of Excavator Mounted Vibratory Drivers
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