A knowledge-based system for the estimation of geotechnical properties. The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source• a link is made to the metadata record in Durham E-Theses• the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. STATEMENT OF COPYRIGHTThe copyright of this thesis rests with the author. No quotation from it should be published without his prior written consent and information derived from it should be acknowledged. ABSTRACTGround properties are mainly evaluated from direct measurements obtained from either laboratory or field tests. As an alternative, or in conjunction with test measurements, ground properties can also be estimated from correlations and published summaries of "typical" values. The advantages of their use are that both are simple, easy to use and they provide a cheap, if crude, means for the rapid estimation of ground properties.A knowledge-based system has been developed to provide a tool for storing and using correlations and "typical" values for the estimation of ground properties. The system was implemented in the ProKappa software, running under X windows on a Sun Spark 2 workstation. The system developed is intended to provide geotechnical engineers with a decision-support tool and to demonstrate the applicability of knowledge-based system technology to the ground property evaluation problem.

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