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Technical paper: Deep compaction with the Vibro-Wing method

By Bengt B Broms, Nanyang Technological Institute and Osten Hansson, Tyrens Foretagsgrupp

This paper was first published in GE’s July 1984 issue

Introduction

During the construction of an extension of the harbour at Rostock, German Democratic Republic, for handling general cargo, a 1.2M.m3 hydraulic fill has been compacted by the Vibro-Wing method down to a maximum depth of 15m. The extension consists of a 1,250m long wharf constructed of precast concrete caissons and anchored sheet pile walls and a 25,000m2 storage area designed to carry a uniformly distributed load of 300kPa. Within the area are also several portal cranes and a number of warehouses. The method has also been used below water to compact the sand beneath the concrete caissons. 

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