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  • A crew of 3-4 men air hammer an uneven area around manhole and extract pieces using manual labor.

  • The air hammer chisels at an angle, creating a vortex shape around the edges of the cutout.

  • When asphalt or concrete is poured against the existing street at this angle, it naturally creates a push-and-pull effect.

  • Over time, this rubbing will push the new casting away from the street causing the manhole to "pop up" and fail.  

  • One man operation of special cutter truck (every control on truck is radio remote controlled).

  • Evenly cuts a perfect circle in asphalt or concrete up to 60" in diameter and 12" deep.

  • When asphalt or concrete is poured against this cylinder shape, it creates a strong bond and eliminates the push-and-pull effect.

  • This flush bond is much stronger and will stay level for years to come.

Typical Manhole Installation

The Manhole Man Installation

Besides having a much better structure, other advantages include saving time, money and liabilities:

 

  • Amount of laborers reduced with 1 man operation of truck

  • Each cut takes only minutes so we will work as fast as you let us

  • Liabilities are greatly reduced with less workers using less dangerous tools (air hammers, street saws, etc.)

© 2014 Trentini Inc.

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