A closed-form elastic solution for stresses and displacements around tunnels

Exadaktylos, GE; Stavropoulou, MC

dc.contributor.author	Exadaktylos, GE	en
dc.contributor.author	Stavropoulou, MC	en
dc.date.accessioned	2014-03-01T01:17:20Z
dc.date.available	2014-03-01T01:17:20Z
dc.date.issued	2002	en
dc.identifier.issn	1365-1609	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14469
dc.subject	Analytical Model	en
dc.subject	Conformal Map	en
dc.subject	Cross Section	en
dc.subject	Linear Elasticity	en
dc.subject	Numerical Model	en
dc.subject	Potential Function	en
dc.subject	Stress Distribution	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Mining & Mineral Processing	en
dc.subject.other	Mapping	en
dc.subject.other	Soils	en
dc.subject.other	Stresses	en
dc.subject.other	Tunnels	en
dc.subject.other	Elastic solution	en
dc.subject.other	Mining	en
dc.subject.other	displacement	en
dc.subject.other	plane strain	en
dc.subject.other	stress analysis	en
dc.subject.other	tunnel	en
dc.title	A closed-form elastic solution for stresses and displacements around tunnels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1365-1609(02)00079-5	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1365-1609(02)00079-5	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	A closed-form plane strain solution is presented for stresses and displacements around tunnels based on the complex potential functions and conformal mapping representation. The tunnel is assumed to be driven in a homogeneous, isotropic, linear elastic and pre-stressed geomaterial. Further, the tunnel is considered to be deep enough such that the stress distribution before the excavation is homogeneous. Needless to say that tunnels of semi-circular or "D" cross-section, double-arch cross-section, or tunnels with arched roof and parabolic floor, have a great number of applications in soil/rock underground engineering practice. For the specific type of semi-circular tunnel the distribution of stresses and displacements around the tunnel periphery predicted by the analytical model are compared with those of the FLAC(2D) numerical model, as well as, with Kirsch's "circular" solution. Finally, a methodology is proposed for the estimation of conformal mapping coefficients for a given cross-sectional shape of the tunnel. (C) 2002 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Rock Mechanics and Mining Sciences	en
dc.identifier.doi	10.1016/S1365-1609(02)00079-5	en
dc.identifier.isi	ISI:000180860400005	en
dc.identifier.volume	39	en
dc.identifier.issue	7	en
dc.identifier.spage	905	en
dc.identifier.epage	916	en