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Advisor(s)
Abstract(s)
The economic development of a region depends on the speed that people and goods can travel. The reduction of people and goods travel time can be achieved by planning smooth road layouts, which are obtained by crossing natural obstacles such as hills, by tunneling at great depths, and allowing the reduction of the road alignment length. The stress state in rock masses at such depths, either because of the overburden or due to the tectonic conditions of the rock mass induces high convergences of the tunnel walls. These high convergence values are incompatible with the supports structural performance installed in the excavation stabilization. In this article it is intended to evaluate and analyze some of the solutions already implemented in several similar geological and geotechnical situations, in order to establish a methodological principle for the design of the tunnels included in a highway section under construction in the region influenced by the Himalayas, in the state of Himachal Pradesh (India) and referenced by "four laning of Kiratpur to Ner Chowk section".
Description
Keywords
Tunnelling Rock Mass Tectonics Convergences
Citation
BHAVSAR, H.; [et al] -Design and construction of tunnels in zones subjected to high convergences. In Proceedings of World Tunnel Congress 2014. Iguassu Falls: ITA, International Tunnelling and Underground Space Association, 2014. ISBN 978-85-67950-00-6. p. 79.
Publisher
ITA, International Tunnelling and Underground Space Association