LST MULTIPLE PILE DRIVING RIG (BARGE MOUNTED) NY 113 001-3 Type 8

摘要

The design of an LST bow-mounted pile driving rig was accom¬plished under BUDOCKS Contract NOy-74816 with Foster and Cafarelli, Consulting Engineers, New York City.nDue to the unavailability of an LST, it was decided to test the general feasibility of the multiple pile driving concept oh a pontoon barge, prior to testing on an LST. Alterations to the design were submitted by the Contractor for the purpose of mounting the driving assembly on the stern of a double-tier, 10 x 24 pontoon barge. Subsequently, the fabrication and mounting of the multiple pile driving rig was accomplished atf and bv, the Laboratory.nThe engineering evaluation consisted of mooring studies and the driving of pile bents. Results of these tests indicated that the mechan¬ical and structural design was unsatisfactory and that satisfactory mooring of the barge for pile driving operations was virtually impossible, within practical and economic limitations. In view of the test results, further testing on an LST is not warranted.