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Rock Excavation with Boom Mounted Hydraulic Impact Hammers

by Jack T. Anderson, NPK Construction Equipment Inc, United States,
William N. Papineau, NPK Construction Equipment Inc, United States,



Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices

Abstract:

A hydraulic demolition hammer mounted on a common backhoe or excavator carrier has gained world wide acceptance in the construction industry as a viable alternative to blasting. This paper briefly describes the history, operating principle, and rock breaking techniques for boom mounted hydraulic impact hammers. Case histories of rock excavation applications are detailed, with comparison to other methods.

Subject Headings: Excavation | Rocks | Hydraulics | Demolition | Case studies | History | Foundations

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