Design charts for a deep circular tunnel under non-uniform loading |
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| Authors: | Emmanuel Detournay Christopher M St John |
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| Institution: | (1) Dowell Schlumberger, Tulsa, OK, U.S.A.;(2) Principia Mechanica Ltd., London, U.K. |
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| Abstract: | Summary This paper describes  design charts which can be used to quickly predict the size and shape of the failed rock regions caused by the excavation of a deep tunnel, and the induced closure for cases of non-uniformin-situ stress fields. Through a simple graphical construction, the design charts can also be used to evaluate the performance of a support system.Previously of J. F. T. Agapito and Associates, U.S.A. |
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