DEVELOPMENT OF THE SPECIFICATION FOR GROUND INVESTIGATION

The document "The specification for ground investigation. Site investigation in construction, Part 3" was published by Thomas Telford Services in December 1993, as part of the Site Investigation Steering Group initiative. The development of the specification, based on earlier specifications by the Department of Transport (1987) and the Institution of Civil Engineers (1989), is described together with the philosophy adopted in its preparation. Problems with the previously existing specifications are noted. The format of the new document and the use of schedules to provide detailed information for a particular contract are described. The paper describes the elements of the specification including the comprehensive notes for guidance and the bill of quantities. (A)