Abstract
Well-connected seepage channels are the key components of tunnel water inrush. To study the trends of the pore water pressure in the rock mass in a seepage channel, the physical experiment and corresponding numerical model were established. First, in the seepage experiment under excavation disturbance, the propagation rate of the high-pressure water source and the growth rate of the pore water pressure in the rock mass were analyzed by considering the different water pressures. Second, under the same model size, parameters, and working conditions, the finite element method was used to simulate the seepage process of water in the rock mass. From the microlevel, the evolution process of the pore water pressure isosurface was obtained. The results showed that the pressure water head is positively correlated with the pore water pressure in the rock mass, which displays multiple approximate relationships. Moreover, when the water pressure is high, excavation disturbance can significantly increase the pore water pressure in the rock mass. The disturbance caused by the first excavation is larger than the subsequent excavations. In addition, the research results were compared with previous results. Reasonable agreements that would provide a reference for the conditions of high water-pressure disasters in deep buried tunnel construction were obtained.
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References
Bukowski P (2011) Water hazard assessment in active shafts in upper Silesian coal basin mines. Mine Water Environ 30(4):302–311. https://doi.org/10.1007/s10230-011-0148-2
Chen B, Zhang SC, Li YY et al (2020) Experimental study on water and sand inrush of mining cracks in loose layers with different clay contents. B Eng Geol Environ. https://doi.org/10.1007/s10064-020-01941-5
Farhadian H, Nikvar-Hassani A (2019) Water flow into tunnels in discontinuous rock: a short critical review of the analytical solution of the art. B Eng Geol Environ 78(5):3833–3849. https://doi.org/10.1007/s10064-018-1348-9
Golian M, Teshnizi ES, Nakhaei M (2018) Prediction of water inflow to mechanized tunnels during tunnel-boring-machine advance using numerical simulation. Hydrogeol J 26(8):2827–2851. https://doi.org/10.1007/s10040-018-1835-x
Huang Z, Li SJ, Zhao K et al (2018) Liquid-soild coupling model test to investigate seepage failure mechanism of intact confining rocks of tunnels. Chines Journal of Basic Science and Engineering 27(06):1345–1356. (in Chinese). https://doi.org/10.16058/j.issn.1005-0930.2019.06.014
Jiang Q, Yang B, Yan F et al (2020) New method for characterizing the shear damage of natural rock joint based on 3D engraving and 3D scanning. Int J Geomech 20(2):06019022. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001575
Jing HW, Yu LY, Su HJ et al (2019) Development and application of catastrophic experiment system for water inrush in surrounding rock of deep tunnels. Hazard Control in Tunnelling and Underground Engineering 1(1):102–110 (in Chinese)
Li SC, Wu J (2019) A multi-factor comprehensive risk assessment method of karst tunnels and its engineering application. B Eng Geol Environ 78(3):1761–1776. https://doi.org/10.1007/s10064-017-1214-1
Li SC, Wu J, Xu ZH et al (2016) Numerical analysis of water flow characteristics after inrushing from the tunnel floor in process of karst tunnel excavation. Geomech Eng 10(4):471–526
Li SC, Wang K, Li LP et al (2017) Mechanical mechanism and development trend of water-inrush disasters in karst tunnels. Chinese Journal of Theoretical & Applied Mechanics 49(1):22–30. (in Chinese). https://doi.org/10.6052/0459-1879-16-345
Li PF, Liu HC, Zhao Y et al (2018a) A bottom-to-up drainage and water pressure reduction system for railway tunnels. Tunn. Undergr Sp Tech 81:296–305. https://doi.org/10.1016/j.tust.2018.07.027
Li PF, Wang F, Long YY et al (2018b) Investigation of steady water inflow into a subsea grouted tunnel. Tunn. Undergr. Sp Tech 80:92–102. https://doi.org/10.1016/j.tust.2018.06.003
Li ZY, Wang YC, Olgun G et al (2020) Risk assessment of water inrush caused by karst cave in tunnels based on reliability and GA-BP neural network. Geomatics, Natural Hazards and Risk 11(1):1212–1232. https://doi.org/10.1080/19475705.2020.1785956
Lu W (2017) Study on karst water inrush mechanism and treatment method and its engineering applications in tunnels. Dissertation, Shandong University
Pan DD, Li SC, Xu ZH et al (2019) Experimental and numerical study of the water inrush mechanisms of underground tunnels due to the proximity of a water-filled karst cavern. B Eng Geol Environ 78(8):6207–6219. https://doi.org/10.1007/s10064-019-01491-5
Wang YC, Yin X, Jing HW et al (2016) A novel cloud model for risk analysis of water inrush in karst tunnels. Environ Earth Sci 75(22):1–13. https://doi.org/10.1007/s12665-016-6260-7
Wang YC, Jing HW, Yu LY et al (2017) Set pair analysis for risk assessment of water inrush in karst tunnels. B Eng Geol Environ 76(3):1199–1207. https://doi.org/10.1007/s10064-016-0918-y
Wang J, Li SC, Li LP et al (2019a) Attribute recognition model for risk assessment of water inrush. B Eng Geol Environ 78(2):1057–1071. https://doi.org/10.1007/s10064-017-1159-4
Wang XT, Li SC, Xu ZH et al (2019b) Risk assessment of water inrush in karst tunnels excavation based on normal cloud model. B Eng Geol Environ 78(5):3783–3798. https://doi.org/10.1007/s10064-018-1294-6
Wang YC, Olgun CG, Wang LB et al (2019c) Risk assessment of water inrush in karst tunnels based on the ideal point method. Pol J Environ Stud 28(9):901–911. https://doi.org/10.15244/pjoes/85199
Wang YC, Geng F, Yang SQ et al (2019d) Numerical simulation of particle migration from crushed sandstones during groundwater inrush. J Hazard Mater 362:327–335. https://doi.org/10.1016/j.jhazmat.2018.09.011
Wang YC, Chen F, Yin X et al (2019e) Study on the risk assessment of water inrush in karst tunnels based on intuitionistic fuzzy theory. Geomatics, Natural Hazards and Risk 10(1):1070–1083. https://doi.org/10.1080/19475705.2018.1564374
Wu XJ (2017) Study on mechanism of seepage and water-inrush from filled karst conduit in tunnel. Dissertation, China University of Mining and Technology
Wu J, Li SC, Xu ZH et al (2019a) Determination of required rock thickness to resist water and mud inrush from karst caves under earthquake action. Tunn Undergr Sp Tech 85:43–55. https://doi.org/10.1016/j.tust.2018.11.048
Wu J, Li SC, Xu ZH (2019b) Numerical analysis of gas-liquid two-phase flow after water inrush from the working face during tunnel excavation in a karst region. B Eng Geol Environ 78(4):2973–3010. https://doi.org/10.1007/s10064-018-1312-8
Yang WM, Fang ZD, Wang H et al (2019) Analysis on water inrush process of tunnel with large buried depth and high water pressure. Processes 7(3). https://doi.org/10.3390/pr7030134
Zhang JQ, Li SC, Zhang QS et al (2018) Experimental research on destruction characteristics of tunnel mud inrush using transparent soils. China Journal of Highway and Transport 31(10):177–189 (in Chinese)
Zhang JQ, Li SC, Zhang QS et al (2019) Mud inrush flow mechanisms: a case study in a water-rich fault tunnel. B Eng Geol Environ 78(8):6267–6283. https://doi.org/10.1007/s10064-019-01508-z
Zhang Y, Zhang DL, Fang Q et al (2020) Analytical solutions of non-Darcy seepage of grouted subsea tunnels. Tunn Undergr Sp Tech:96. https://doi.org/10.1016/j.tust.2019.103182
Zhao N, Wang YC, Meng B et al (2018) Numerical simulation on the seepage properties of soil-rock mixture. Adv Mater Sci Eng 2018. https://doi.org/10.1155/2018/1859319
Zhou Y, Li SC, Li LP et al (2015) 3D fluid-solid coupled model test on water-inrush in tunnel due to seepage from filled karst conduit. Chin J Rock Mech Eng 34(9):1739–1749. https://doi.org/10.13722/j.cnki.jrme.2014.1393
Zhu HT (2010) Study on the rule of water pressure upon lining and treatment technique upon Qiyueshan karst. Dissertation, Beijing Jiaotong University
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Financial supports received from Self-determined Project of State Key Laboratory for Geomechanics and Deep Underground Engineering (Z19010) and the National Natural Science Foundation of China (41572263).
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Wang, Y., Li, Z., Jing, H. et al. Study on the seepage characteristics of deep buried tunnels under variable high-pressure water heads. Bull Eng Geol Environ 80, 1477–1487 (2021). https://doi.org/10.1007/s10064-020-01986-6
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DOI: https://doi.org/10.1007/s10064-020-01986-6