Safety Assessment in Tunnel Grouting Using Fuzzy Rotational and Angular Models
Publication: Journal of Performance of Constructed Facilities
Volume 23, Issue 6
Abstract
Grouting operations in sewage tunnel construction are performed to prevent water inflow and to strengthen and solidify the ring shape of the tunnel. Such operations have hazards. Safety assessments of these operations often involve subjective judgment. These judgments frequently employ linguistic expressions that are not easily defined although they are useful. Rotational and angular fuzzy logic models, which are useful in evaluating judgments commonly expressed linguistically, have been established to determine the performance and safety of tunnel grouting operations. The graphical models involve the use of ramp functions having both positive and negative characteristics.
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Acknowledgments
Pictures were provided by H. R. Gray, Inc., Columbus, Ohio, who employed the first author as a construction engineer for a sewage tunnel project. The writers wish to thank Ms. Ann Weaver Hart for editing this paper.
References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 23 • Issue 6 • December 2009
Pages: 423 - 431
Copyright
© 2009 ASCE.
History
Received: Jul 23, 2008
Accepted: Apr 20, 2009
Published online: Nov 13, 2009
Published in print: Dec 2009
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