Hydraulic Significance of Fractured Zones in Subsea Tunnels
- 25 May 2011
- journal article
- research article
- Published by Taylor & Francis Ltd in Marine Georesources & Geotechnology
- Vol. 29 (3), 230-247
- https://doi.org/10.1080/1064119x.2011.555712
Abstract
This article presents the effect of fractured zones on subsea tunnels. Generally, a subsea tunnel is designed to support high water pressure so that the hydraulic condition is of fundamental interest. In cases where fractured zones exist along the tunnel route, attention should be paid to it at the design stage. However, there is not much information about the hydraulic influences on the fractured zones. Pore water pressure and inflow rates are the main hydraulic factors to be considered in the design. In this article, the hydraulic effects on the fractured zones of a subsea tunnel under construction and during operation have been investigated using a numerical method and small scale model tests. The Vardø tunnel, which is a subsea tunnel in Norway (Grønhaug and Lynnegerg, 1984 Grønhaug , A. and T. E. Lynneberg . 1984. The Vardø subsea tunnel – a low cost project? Proceedings of International Symposium on Low Cost Road Tunnels, Tapir Publishers: 185–203. [Google Scholar]), is used for the numerical modeling. Based on the analysis results, the significance of fractured zones in subsea tunnels is identified.Keywords
This publication has 9 references indexed in Scilit:
- Effective control of pore water pressures on tunnel linings using pin-hole drain methodTunnelling and Underground Space Technology, 2009
- A numerical study of the effect of groundwater movement on long-term tunnel behaviourGéotechnique, 2002
- Behavior of Pressure Tunnels and Guidelines for Liner DesignJournal of Geotechnical Engineering, 1994
- Large undersea tunnels and the progress of tunnelling technologyTunnelling and Underground Space Technology, 1994
- Analysis of potential cave-in from fault zones in hard rock subsea tunnelsRock Mechanics and Rock Engineering, 1994
- Technical development for the Seikan tunnelTunnelling and Underground Space Technology, 1986
- The proposed design of the English Channel TunnelTunnelling and Underground Space Technology, 1986
- Loads on leaking and watertight tunnel linings, sewers and buried pipes due to groundwaterGéotechnique, 1983
- Discussion: The circular tunnel in elastic groundGéotechnique, 1976