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determining critical particle velocity for a marine structure

determining critical particle velocity for a marine structure

determining critical particle velocity for a marine structure

I have question on determining critical particle velocity for a concrete wharf, or the natural frequency of the structure. Blasting operations will be near the structure and need to provide a upper limit which a blaster cannot exceed. Is there a proven method which I can quickly calculate or understand. To better aid your response, the following parameters are:

Structure to Remain:
The Wharf is supported on 24" Square Concrete Bearing Piles. All piles were driven to refusal to a depth of 45 feet. The structure has no batter piles. The uniform Live Load for the structure was design to be 800 psf.

Structure to Remove:
The derelict structure is 80 feet waterward from the face berth, and is submerged to a depth of 35 feet and is 15 feet deep.

The area is comprised of Clay,sand, sandstone, Limestone. Both structures are resting on limestone.

Any hints, suggestions, books, programs will be very useful and handy.


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