Water infiltration estimation in tunnels: with reference to the Melbourne underground

Tan, Y, Smith, J, Li, C and Dauth, J 2016, 'Water infiltration estimation in tunnels: with reference to the Melbourne underground', in RJ Mair, K Soga, Y Jin, AK Parlikad and JM Schooling (ed.) Proceedings of the International Conference on Smart Infrastructure and Construction (ICSIC 2016), Cambridge, United Kingdom, 27-29 June 2016, pp. 597-602.


Document type: Conference Paper
Collection: Conference Papers

Title Water infiltration estimation in tunnels: with reference to the Melbourne underground
Author(s) Tan, Y
Smith, J
Li, C
Dauth, J
Year 2016
Conference name ICSIC 2016: Transforming the Future of Infrastructure through Smarter Information
Conference location Cambridge, United Kingdom
Conference dates 27-29 June 2016
Proceedings title Proceedings of the International Conference on Smart Infrastructure and Construction (ICSIC 2016)
Editor(s) RJ Mair, K Soga, Y Jin, AK Parlikad and JM Schooling
Publisher Institution of Civil Engineers
Place of publication Cambridge, United Kingdom
Start page 597
End page 602
Total pages 6
Abstract Understanding the potential for water flow into a tunnel through the surrounding rock mass and the tunnel lining is essential for tunnel design and assessment. Typically, water penetrates through a lining along discrete paths such as joints and cracks. However, the hydraulic conductivity can be non-uniform through the lining for a range of reasons. A method describing the flow through a lining with progressively changing hydraulic conductivity is presented. When the hydraulic conductivity of the outer surface of the lining is higher than that of the inner surface, the water inflow rate can be several times higher compared to a homogenous lining with hydraulic conductivity equal to the inner surface. The inhomogeneity of the lining could also affect the water pressure on the tunnel, which could be an important factor for the stability study. A water seepage factor chart for engineering applications, incorporating inhomogeneous hydraulic conductivity, is presented.
Subjects Civil Geotechnical Engineering
Hydrogeology
Copyright notice © 2016 Authors and ICE Publishing: All rights reserved.
ISBN 9780727761279
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