Numerical Statical Analysis of Umbrella Drain Performance in Deep Circular Not-lined Tunnel for Steady-State Seepage

Document Type : پژوهشی

Authors

• Ali Hosseinbalam
• Mahmoud Hashemi

University of Isfahan

10.22067/civil.v29i1.43560

Abstract

In this article, Umbrella drainage system is presented as a alternative drainage system for the tunnels under steady state-seepage condition. The arrangement of this system is inspired from pin-hole drainage system and forepoling method of support installation. In this study, the performance of this drainage system is investigated through numerical statical analysis for deep circular tunnels subjected to steady-state seepage by using ABAQUS finite element software. In this regard, three monitoring parameters have been investigated: tunnel domain’s maximum effective principle strain, pore water pressure distribution of the tunnel walls and hydraulic gradient around the drainages. By taking into account these parameters, an optimum arrangement for the draining system is presented through exploring all of the factors affecting the drainage tube performance.

Keywords

• Umbrella Drainage
• Deep Circular Tunnel
• Steady-State Seepage and Numerical Statical Analysis

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References

1. H-S.Shin., D-J.Youn., S-E.Chae., and J-H.Shin., "Effective Control of Pore Water Pressures on Tunnel Linings Using Pin-Hole Drain Method", Tunnelling and Underground Space Technology, Vol. 24, pp. 555-561, (2009).

2. H-S.Jung., Y-S.Han., S-R.Chung., B-S.Chun., and Y-J.Lee., "Evaluation of Advanced Drainage Treatment for Old Tunnel Drainage System in Korea", Tunnelling and Underground Space Technology, Vol. 38, pp. 476-486, (2013).

3. S-W.Nam., and A.Bobet., "Liner Stresses in Deep Tunnels Below the Water Table", Tunnelling and Underground Space Technology, Vol. 21, pp. 626-635, (2006).

4. A.Fahimifar., and M.Zareifard., "A Theoretical Solution for Analysis of Tunnels Below Groundwater Considering the Hydraulic-Mechanical Coupling", Tunnelling and Underground Space Technology, Vol. 24, pp. 634-646, (2009).

5. S-W.Lee., J-W.Jung., S-W.Nam., and I-M.Lee., "The Influence of Seepage Forces on Ground Reaction Curve of Circular Opening", Tunnelling and Underground Space Technology, Vol. 22, pp. 28-38, (2006).

6. Y-J.Shin., B-M.Kim., J-H.Shin., and I-M.Lee., "The Ground Reaction Curve of Underwater Tunnels Considering Seepage Forces", Tunnelling and Underground Space Technology, Vol. 25, pp. 315-324, (2010).

7. I-M.Lee., and S-W.Nam., "Effect of Tunnel Advance Rate on Seepage Forces Acting on the Underwater Tunnel Face", Tunnelling and Underground Space Technology, Vol. 19, pp. 273-281, (2004).

8. S-C.Li., and M-B.Wang., "Elastic Analysis of Stress-Displacement Field for a Lined Circular Tunnel at Great Depth Due to Ground Loads and Internal Pressure", Tunnelling and Underground Space Technology, Vol. 23, pp. 609-617, (2008).

9. C.Callari., "Coupled Numerical Analysis of Strain Localization Induced by Shallow Tunnels in Saturated Soils", Computers and Geotechnics, Vol. 31, pp. 193-207, (2004).

10. J-H.Shin., S-H.Kim., and Y-S.Shin., "Long-Term Mechanical and Hydraulic Interaction and Leakage Evaluation of Segmented Tunnels", Soils and Foundations, Vol. 52, pp. 38-48, (2012).

11. P. Arjnoi., J-H. Jeong., C-Y.Kim., and K-H.Park., "Effect of Drainage Conditions on Porewater Pressure Distributions and Lining Stresses in Drained Tunnels", Tunnelling and Underground Space Technology, vol. 24, pp. 376-389, (2009).

12. W. Xiuyinga., T. Zhongsheng., W. Mengshu., Z. Mi., and H. Ming., "Theoretical and Experimental Study of External Water Pressure on Tunnel Lining in Controlled Drainage Under High Water Level", Tunnelling and Underground Space Technology, Vol. 23, pp. 552-560, (2008).

13. A. Bobet., "Effect of Pore Water Pressure on Tunnel Support During Static and Seismic Loading", Tunnelling and Underground Space Technology, vol. 18, pp. 377-393, (2003).

14. Y-J. Shin., K-I. Song., I-M. Lee., and G-C. Cho., "Interaction Between Tunnel Supports and Ground Convergence-Consideration of Seepage Forces", International Journal of Rock Mechanics and Mining Sciences, vol. 48, pp. 394-405, (2011).

15. I-M. Lee., J-S. Lee., and S-W. Nam., "Effect of Seepage Force on Tunnel Face Stability Reinforced with Multi-Step Pipe Grouting", Tunnelling and Underground Space Technology, Vol. 19, pp. 551-565, (2004).

16. I-M. Lee., and S-W. Nam., "The Study of Seepage Forces Acting on the Tunnel Lining and Tunnel Face in Shallow Tunnels", Tunnelling and Underground Space Technology, Vol. 16, pp. 31-40, (2001).

17. D. Kolymbas., and P. Wagner., "Groundwater Ingress to Tunnels - The Exact Analytical Solution", Tunnelling and Underground Space Technology, Vol. 22, pp. 23-27, (2007).

18. C. Butscher., "Steady-State Groundwater Inflow into a Circular Tunnel", Tunnelling and Underground Space Technology, Vol. 32, pp. 158-167, (2012).

19. K-H. Park., A. Owatsiriwong., and J-G. Lee., "Analytical Solution for Steady-State Groundwater Inflow into a Drained Circular Tunnel in a Semi-Infinite aQuifer: A Revisit", Tunnelling and Underground Space Technology, Vol. 23, pp. 206-209, (2008).

20. G. Fernandez., and J. Moon., "Excavation-Induced Hydraulic Conductivity Reduction Around a Tunnel - Part 1: Guideline for Estimate of Ground Water Inflow Rate", Tunnelling and Underground Space Technology, Vol. 25, pp. 560-566, (2010).

21. حسین‌بالام، علی، "تحلیل عددی استاتیکی عملکرد زه‌کش چتری در تونل دایروی عمیق تحت تراوش پایدار"، پایان‌نامۀ کارشناسی ارشد مهندسی عمران (خاک و پی)، گروه عمران، دانشکدۀ فنی و مهندسی، دانشگاه اصفهان، (1393).

22. Simulia, ABAQUS 6-13-1 reference manual, (2014).