Model Test Study on a Large-Section Cable Tunnel

Abstract:

The profile layout rationality and internal stress structure of a large-section cable tunnel and a cable-laying scheme at splicing locations were studied through full-scale model test. The full scale shield tunnel which the diameter was 6m was built on the ground. The model tests test the displacement of cable bearers, the coupling area between horizontal beam and steel ring, the coupling area between horizontal beam and steel pillar, edge beam and center beam under design loads, and the safety and reliability of an arc steel framing system that supports the cable load inside the cable tunnel during the operation stage were demonstrated. The cable-laying schemes for the cross section and straight-through-type and T-type couplings of a large-section cable tunnel were optimized through experiment on actually laid-out cables. For the section layout of a large-section cable tunnel, it is believed that the double-deck scheme prevails over the single-deck scheme, and such a cable-splicing scheme can meet the cable-laying requirement.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 1411-1416
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.1411
• Online since: August 2013
• Authors: Jun Sheng Chen, Shu Zhuo Liu, Ren Guo Gu, Ying Guang Fang, Hai Hong Mo
• Keywords: Cable Tunnel, Full-Scale Model Test, Large-Section

References

[1] Morgan Sindall Group plc, 2011. Croydon Cable Tunnel Beddington to Rowdown, Greater London, Morgan Sindall Group plc, London, UK.

DOI: 10.1093/ww/9780199540884.013.u245113

[2] Karakitsiou, M.; Bowler, R.; Sadler, S.; Pepper, S., 2007. Outline design and construction of the 10 km (6. 25 mile) Croydon cable (high voltage) tunnel through Groundwater Source Protection Zones, United Kingdom. Rapid Excavation And Tunneling Conference, Toronto, ON, Canada, pp.117-136.

[3] Ausgrid, 2011. City East Cable Tunnel, Ausgrid, Sydney, Australia.

[4] Ashley, J.J., 2008. Design and construction of the City West cable tunnel, Sydney Australia. 13th Australian Tunnelling Conference, Melbourne, VIC, Australia, pp.7-19.

[5] Drowley, L.; Kuras, A., 2008. Design of a steel fibre reinforced concrete segmental tunnel Lining - City west cable tunnel project, Sydney. 13th Australian Tunnelling Conference, Melbourne, VIC, Australia, pp.471-478.

[6] Woodrow, S., 2008. Lower Lea Valley Cable Tunnels - A case study of a program critical project. 13th Australian Tunnelling Conference, Melbourne, VIC, Australia, pp.273-277.

[7] Mainwaring, G.D., Lam, Y.K., 2001. The planning, design and construction of the TUCAS Cable Tunnel and future power transmission cable tunnels in Singapore. Rapid Excavation and Tunneling (RETC) Conference, San Diego, USA, pp.647-658.

[8] Dragages Hong Kong Limited, 2007. Castle Peak Cable Tunnel, Dragages Hong Kong Limited, Hongkong, China.