Civil Engineering Association

COMPUTING AND COMPUTER MODELLING IN GEOTECHNICAL ENGINEERING

A broad review is presented of the role of computing in geotechnical engineering. Included in the discussions are the conventional deterministic techniques for numerical modelling, stochastic techniques for dealing with uncertainty, Ôsoft-computingÕ tools, as well as modern database software for geotechnical applications. Considerable emphasis is given to the methods commonly used for the solution of boundary and initial value problems. Constitutive modelling of soil and rock mass behaviour and material interfaces is an essential component of this type of computing, and so a review of recent developments and capabilities of constitutive models is also included. The importance of validating computer simulations and geotechnical software is emphasised, and some methodologies for achieving this are suggested. A description of several previously conducted validation studies is included. The paper also includes discussion of the limitations ofvarious numerical modelling techniques and some of the more notable pitfalls.

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