Hey all,
I am working on the conceptual design for a rapid bridge replacement project in NH. The major issue with this location is not the bridge....its the profile of the roadway. To meet modern standards for vertical curves, grades, and sight distance, the road needs to come down up to 2.5 feet for several stations.
The problem is.....bedrock is only 5' below the existing road grade.
Due to the need to accelerate this replacement (only detour is 12 miles), we are looking into the feasibility of milling the bedrock down to grade. Drill and blast is not going to happen here.
Being in the Northeast, surface mining equipment like Vermeer Terrain Levelers aren't common. Can a modern cold planer mill rock (Diorate, slightly weathered....its the Granite State!)?
I am working on the conceptual design for a rapid bridge replacement project in NH. The major issue with this location is not the bridge....its the profile of the roadway. To meet modern standards for vertical curves, grades, and sight distance, the road needs to come down up to 2.5 feet for several stations.
The problem is.....bedrock is only 5' below the existing road grade.
Due to the need to accelerate this replacement (only detour is 12 miles), we are looking into the feasibility of milling the bedrock down to grade. Drill and blast is not going to happen here.
Being in the Northeast, surface mining equipment like Vermeer Terrain Levelers aren't common. Can a modern cold planer mill rock (Diorate, slightly weathered....its the Granite State!)?
Question About Milling Rock?
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