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https://hdl.handle.net/2440/80911
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Type: | Journal article |
Title: | The application of genetic algorithms to optimisation problems in geotechnics |
Author: | Simpson, A. Priest, S. |
Citation: | Computers and Geotechnics, 1993; 15(1):1-19 |
Publisher: | Elsevier |
Issue Date: | 1993 |
ISSN: | 0266-352X |
Statement of Responsibility: | Angus R. Simpson and Stephen D. Priest |
Abstract: | The paper presents an introduction to a relatively new optimisation technique, known as genetic algorithms, and discusses its potential for application to geotechnical problems. The method of genetic algorithms is a search technique based on the mechanics of natural selection and natural genetics implemented by coding each state of a particular optimisation problem as a string of binary digits. The objective function provides a measure of the 'fitness' of each state. Further generations of the binary string are created by a process of reproduction, crossover and mutation that favours the survival of the fitter strings. An optimal, or near optimal solution is identified after a relatively small number of generations that represent only a small fraction of the complete set of possible enumerations. After a brief explanation of the principal elements of genetic algorithms the paper outlines the background theory to the identification of discontinuity frequency extrema in fractured rock masses - an optimisation problem that is computationally demanding. The technique is then implemented through a case example involving a rock structure containing up to 100 discontinuities, each one treated as a set. It is shown that genetic algorithms provide an efficient and computationally powerful optimisation technique. |
Rights: | © 1993 Elsevier Science Publishers |
DOI: | 10.1016/0266-352X(93)90014-X |
Published version: | http://dx.doi.org/10.1016/0266-352x(93)90014-x |
Appears in Collections: | Aurora harvest Civil and Environmental Engineering publications |
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