Recent applications of grouting : Merrifield, C M Ground EngngV17, N5, July 1984, P7–10

Abstract

The author reports on the British Geotechnical Society's January 1984 informal meeting where three speakers provided examples of the use of grouting in conditions varying from the highly saline conditions of the Dead Sea to fabric formwork for over 5000 km of North Sea gas and oil pipelines. Extensive laboratory and site trials were needed to produce a slurry of the required characteristics for the 14 km long diaphragm wall in Jordan. New anchorages were installed in the floor of an existing dry dock at Alexandria in Egypt. The installation of 400 tonne anchorages for anchoring marine piles required extensive pre-grouting. The concept of squeeze grouting, needs careful matching of rheological properties of grout and ground to control hydrofracture. Combination grouting has been used to stabilise milonitic material in advance of a tunnelling face. Squeeze grouting has also been used effectively for precompression. A brief illustration was given of the variety of grout applications in civil engineering, mining and offshore engineering. These included large diameter piles in Jeddah, tunnelling in Hong Kong without the use of compressed air and the grouting of the Asprokremmos Dam. (TRRL)