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The author reviews three developments in the design and manufacture of segmental concrete linings used for subway stations in the C.I.S. (Commonwealth of Independent States: formerly the Soviet Union): (1) in-situ concrete linings used in constructing subway stations incorporating permanent...
A semi-empirical method has been developed for the design of support systems consisting of rock bolts/anchors, shortcrete/fibre-reinforced shortcrete, steel ribs and grouted arches to support tunnels and caverns, especially in poor rock conditions. The empirical relations for mobilizing factors...
At a series of meetings held in Acapulco in May 1992, the International Tunnelling Association (ITA) Working Group no. 13 decided to launch a research programme on underground car parks. This introductory report, together with the associated articles, is the first study of the group concerning a...
A new analytical method based on the convergence-confinement approach to the design of pretunnel lining is presented. The results obtained with the proposed model are compared with the results obtained with an FEM axisymmetric model, for the geometrical and geomechanical parameters of a real...
This paper summarizes the reports from members of the ITA Working Group “Direct and Indirect Advantages of Underground Structures” on underground parking conditions in various ITA countries.
The new Meteor metro line in Paris is forging a new relationship between the underground Metro system and the City on the surface. The author traces the development of the Paris metro and examines the current situation with regard to its underground transportation network. The paper presents...
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