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Resonance technology in the foundation industry: a promising innovation

Who doesn't remember the famous Tintin episode where opera singer Bianca Castafiore breaks glass using only her voice? This interesting phenomenon has everything to do with the concept of resonance. The technique simply supplies vibration power in tune with the natural frequency of the object. In the comic series, exceeding the natural resonance of the glass caused it to break. In the foundation industry, using the natural resonance of objects (not exceeding them!) to drive piles into the soil or seabed is one of the latest and 'state of the art' technologies on the market.

Right now, vibratory hammers are the most common used equipment for foundation jobs. They exist since the 30's and have evolved through the years to the current models that are used today. The machines use vibration to drive foundation material into the soil. Now, the world is getting ready to meet the latest innovation: resonance technology.

A brief explanation on the workings of resonance technology

Resonance TechnologyTo apply resonance technology in the foundation industry, so-called Resonators or Resonance Drivers have been developed. Using a cylindric principle on a very high frequency (100 – 180 hertz), the energy is transmitted at the exact right place: the very end of the sheet pile, pipe or H-beam.

The Resonator uses a proprietary algorithm to maintain constant tuning of the Driver frequency to the resonant frequency of the pile and ground. Think of it like a child on a swing: by simply giving a small push, the swing maintains a steady motion. The same principle is applied with the Resonator. When the ideal resonance is reached, enormous G-forces are generated from 100 to 200G! Therefore they drive the profile in the soil at a very high pace.

The movie below provides a very complete image of Resonance Technology in the foundation industry.

What are the main differences between resonance and vibratory techniques?

Resonance technologyThere are some important differences between a resonator and a vibratory hammer. With a Resonator, the pile stores energy elastically as a spring, while the vibro technique brings the profile in vertical vibration.

During the vibratory process, the vibratory hammers reach a frequency of 38 hertz, so therefore the energy coming from the vibratory hammer makes the soil move. Exceeding a frequency of 100 hertz, the Resonance Driver creates no loss of energy in the soil. The Resonator creates less vibrations to the surroundings, making it highly suitable for use in urban areas.

How resonance technology benefits your foundation work

Resonators have some impressive advantages.

  • The foundation process can be executed very quickly
  • No loss of energy in the soil
  • The Resonator is small, compact and light, but still has great penetration power due to the enormous G-powers
  • When using the right power pack to drive the Resonator, you are now able to control the ideal resonance frequency

Learn everything about Resonance Technology at Bauma

Are you curious what the future of the construction industry holds? From April 11th until 17th all eyes are on Munich, when bauma 2016 takes place. Dieseko Group will teach you everything you need to know about Resonance Technology.

Download the brochure (Tom)


Topics: Piling and vibratory equipment

Posted by Tom van der Jagt on Feb 23, 2016 10:00:00 AM


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