Review Of The Methods Used To Construct Large Diameter Bored Piles For Top Down Construction

Findlay, J. D.
Organization: Deep Foundations Institute
Pages: 12
Publication Date: Jan 1, 1989
The demands on development in London in recent years has led to the increasing use of top down construction methods in which there is a requirement to place steel columns to high tolerances into large diameter bored piles with deep cut-offs. A number of different proposals for the sequence of construction are being suggested. The tolerances requires for the steel columns are becoming increasingly stringent. This review examines a number of basic construction proposals and comments on the problems and solutions used by foundation contractors to provide the required foundations.
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