An Innovation Simulation Method for Flow State Evolution Laws of Water Inflow and Inrush in Course of Tunnel Excavation (Part I: Theories)

Abstract:

Hydrologic and engineering geological conditions of underground engineering and mining are highly complex. Geological hazards, especially water inflow or inrush, often occur during constructions. In order to get an insight into flow state evolution laws of water inflow and inrush in karst regions, as well as the influence of tunnel excavation, a numerical simulation method was proposed with COMSOL Multiphysics. Three water flow laws, Darcy’s law, Brinkman equations and incompressible Navier-Stokes equations, are coupled and linked with each other. Water pressure and velocity can be analyzed in the course of excavation, and it can be used for further study of risk control of water inflow and inrush.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 2565-2570
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.2565
• Online since: May 2011
• Authors: Zhen Hao Xu, Shu Cai Li, Li Ping Li, Shao Shuai Shi
• Keywords: Simulation Method, State Evolution Law, Tunnel Excavation, Water Flow, Water Inflow and Inrush

References

[1] Shucai Li, Shuchen Li and Qingsong Zhang et al: Chinese Journal of Rock Mechanics and Engineering, Vol. 26(2007), pp.217-225 (in Chinese)

[2] Wolkersdorfer C and Bowell R: Mine Water and the Environment, Vol. 23 (2004), p.161

[3] Kuzentsov S V and Troflmov V A: Journal of Mining Science, 39 (2002), pp.205-212

[4] Jincai Zhang: International Journal of Rock Mechanics & Mining Sciences. Vol. 42(2005), pp.350-360

[5] Liping Li, Shucai Li, Qingsong Zhang: Rock and Soil Mechanics, Vol. 31(2010), pp.523-528(in Chinese)

[6] Tianhong Yang, Shikuo Chen, Wancheng Zhu and et al: Water inrush mechanism in mines and nonlinear flow model for fractured rocks. Chinese Journal of Rock Mechanics and Engineering. Vol. 27(2008), p.1411~1416 (in Chinese)

[7] Qiang Wu and Wanfang Zhou: Environmental Geology, Vol. 56(2008), pp.245-254

[8] Zhenhao Xu, Shu-cai Li and Qingsong Zhang et al: Chinese Journal of Underground Space and Engineering, Vol. 4(2008), pp.640-644 (in Chinese)

[9] Information on http://www.cntech.com.cn

[10] COMSOL AB： Earth Science Module Users' Guide, (2008)

[11] I. Harari and T.J.R. Hughes: Comp. Meth. Appl. Mech. Engrg Vol. 97 (1992), pp.157-192

[12] Y. Bazilevs, V.M. Calo, T.E. Tezduyar, and T.J.R. Hughes: Int.J.Num. Meth. Fluids Vol. 54 (2007), pp.593-608

[13] G. Hauke and T.J.R. Hughes: Comp. Meth. Appl. Mech. Engrg Vol. 113 (1994), pp.389-395

[14] G. Hauke: Comp. Meth. Appl. Mech. Engrg Vol. 190 (2001), pp.6881-6893

[15] A. Soulaïmani and M. Fortin: Comp. Meth. Appl. Mech. Engrg Vol. 118 (2001), pp.319-350