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New Rig Allows Contractor To Dig Deep and Slipform Core

Publication Date: 17-JUN-09
Author: Peter Reina
Format: HTML

    
Description:
Builders of the U.K.’s tallest skyscraper, London’s Shard, will save valuable time by excavating its three-floor basement while slipforming the core. A novel machine is now at work, plunging columns into pile tops some 15 meters below ground to prop up the rising core as soil beneath is removed.
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