Influence Analysis of Drainage Mode on the Karst Tunnel Lining under High Water Pressure
Keywords:
Karst Tunnel, Tunnel Drainage, Tunnel Lining Water Pressure, Drainage Ditch under Invert Arch.Abstract
In order to avoid lining cracking caused by high water pressure deformation and damage of the disease, the lining water pressure of many domestic karst tunnels are summed up, showing that the tunnel drainage is the main factor causing the high lining water pressure. For a passenger line tunnel, the numerical calculation model of finite difference method FLAC2D is established. It analyzes the characteristics of tunnel lining water pressure under side wall corner drainage mode of ditch at “two side ditch + center ditch”, pointing out that the invert arch pressure is huge and the lining safety is low under the condition of high pressure and rich water and drainage mode of “two side ditch + center ditch”. In order to improve the safety and reduce the water pressure, the drainage sheme of the drainage ditch under the inverted arch is proposed and the water pressure of the tunnel lining is calculated and analyzed. The analysis shows that the drainage ditch can effectively reduce the water pressure of the inverted arch, which can improve the safety of the tunnel structure through the drainage ditch under the invert of the high pressure water rich karst tunnel.
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References
Feng, S., Xia, Q. Y. and Zhu, J. H. (2012): Karst tunnel operation disease treatment technology of Mining technology, 12(9): 33-36.
Xu, Z. H., Li, S. C. and Li, L. P. (2011): “A typical karst tunnel lining for the prevention and treatment of water inrush disasters.” Rock Mechanics and Engineering, 30 (7):1396-1404.
Zhang, H. L. (2006): “Beijing Guangzhou railway Nanling tunnel.” Tunnel Construction, 26(3):82-85.
Zhang, Y. T. (2001): “External water pressure on lining of tunnels in mountain area.” Modern Tunnelling Science and Technology, 551-556.
Wang, J. Y. (2008): “Tunnel surrounding rock seepage and lining water pressure load.” Railway Construction Technology, 2:1-6.
Li, P. F., Zhang, D. L. and Zhao, Y. (2012): Tunnel composite lining water pressure distribution and reasonable grouting parameters of Circle of rock mechanics and engineering, 31(2): 280-288.
(2012): High pressure and rich water tunnel lining water pressure reduction coefficient of. Beijing: Beijing Jiaotong University, 2012.
Zhang, Z. D. (1995): “Discussion of groundwater treatment and structure design of mountain tunnel.” Journal of Railway Engineering, 1: 103-111.
Zhang, Y., Wan, X. Y. and Chen, L. W. (2006): “Experimental analysis of anti water pressure lining structure in karst area of Liangshan tunnel.” China Railway Science, 27(4): 62-67.
Yan, Q. X., Zhang, M. and Cheng, X. (2013): The distribution of model test on characteristics of rock mechanics and engineering. Water pressure drainage segment lining after 32(S1): 2617-2623.
Chi, Y. L. (2011): Research on construction technology of water rich karst area in Liangshan tunnel. Beijing: Beijing Jiaotong University.
Huang, X. H., Wang, C. M., Wang, T. Z. and Zhang, Z. M. (2015): “Quantification of geological strength index based on discontinuity volume density of rock masses.” International Journal of Heat and Technology, 33(4): 255-261.
Adewumi, O. O., Bello-Ochende, T. and Meyer, J. P. (2016): “Constructal design of single microchannel heat sink with varying axial length and temperature-dependent fluid properties.” International Journal of Heat and Technology, 34(S1): S167-S172.
Sivakumar, A., Alagumurthi, N. and Senthilvelan, T. (2015): “Experimental and numerical investigation of forced convective heat transfer coefficient in nanofluids of Al2O3/water and CuO/EG in a serpentine shaped microchannel heat sink.” International Journal of Heat and Technology, 31(1): 155-160.
Liao, W. T., Zhu, H. Q., Yang, Y., Wu, Y. L. and Fan, Y. C. (2016): “Study on Low Temperature Mechanical Properties of Rocks under High Strain Rate.” Revista de la Facultad de Ingeniería, 31(5): 197-208.
Xia, B. W., Zhao, B. Q., Lu, Y. Y., Liu, C. W. and Song, C. P. (2016): “Drainage Radius after High Pressure Water Jet Slotting Based on Methane Flow Field.” International Journal of Heat and Technology, 34(3): 507-512.
(2005): TB1003-2005, code for design of railway tunnel. Beijing: China Railway Publishing House, 2005.