UNWIN MEMORIAL LECTURE 1992. DEVELOPMENTS IN GEOTECHNICAL ENGINEERING RESEARCH: APPLICATION TO TUNNELS AND DEEP EXCAVATIONS. DELIVERED AT THE ICE ON 17 MARCH 1992. (ABRIDGED). (WINNER OF 1994 GEOTECHNICAL RESEARCH MEDAL).

Keywords: GEOTECHNICS, ENGINEERING, RESEARCH, GEOTECHNICAL, APPLICATIONS, TUNNELS, DEEP, EXCAVATIONS, SITE INVESTIGATION, LABORATORIES, TESTS, SOILS, SAMPLING, IN SITU, TESTING, CLAYS, LONDON CLAY, COLLAPSE, MODELLING, ANALYSIS, DESIGN, BORED, CONSTRUCTION, ESCALATORS, STATIONS, UNDERGROUND, BASEMENTS, PERFORMANCE, BUILDINGS, SETTLEMENT, MOL, ANGEL, ISLINGTON, LONDON, VICTORIA, EMBANKMENT, HAREWOOD AVENUE, BELGIUM, UK