Abstract
Loess tunnels are widely used in transportation engineering and are irreplaceable parts of transportation infrastructure. In this paper, a dynamic finite element method is used to analyze the coupled effects of a train vibration load and rainfall seepage. By calculating the variation in the safety factor of a loess tunnel because of the effects of various factors, such as different rainfall intensities and soil thicknesses, the dynamic stability of the loess tunnel is studied under the condition of a near-field pulse-like earthquake. The results show that the security and stability of the tunnel decrease gradually with decreasing burial depth. In addition, the plastic strain of the tunnel is mainly distributed on both sides of the vault and the feet, and the maximum value of the critical strain occurs on both sides of the arch feet. Because of the effects of the train vibration load and rainfall seepage, the safety factor of the loess tunnel structure decreases to a certain degree. Moreover, the range and maximum value of the plastic strain increase to various degrees.
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References
Xian D Q. Analysis of main causes of foundation engineering accidents (in Chinese). Mineral Explor, 2004, 7: 11–13
Pan C S, Pande G N. Analysis of dynamic load response of loess tunnel by finite element method (in Chinese). China Civil Eng J, 1984: 21–30
Xie W P, Wang G B, Yu Y L. Calculation of soil deformation caused by moving load (in Chinese). Chin J Geotech Eng, 2004, 2: 318–322
Bian X C. Dynamic response analysis of foundation and tunnel under moving load of high speed train (in Chinese). Dissertation of Doctoral Degree. Zhejiang: Zhejiang University, 2005
Li L, Zhang B Q, Yang X L. Dynamic response analysis of large section tunnel under vibration load of high speed train (in Chinese). Chin J Rock Mech Eng, 2005, 24: 4259–4265
Zhai L H, Shi H O, Jiang P P. Analysis of soil dynamic response and impact of high speed railway vibration load on metro tunnel (in Chinese). Urban Mass Transit, 2012, 15: 32–37
Ye F, Ding W Q, Wang G B, et.al. Study on the influence of train moving load on stability of down road tunnel (in Chinese). Rock Soil Mech, 2008, 29: 549–552
Zhang K. Vibration response and settlement of loess stratum under subway driving load (in Chinese). Dissertation of Doctoral Degree. Xi’an: Xi’an University of Architecture and Technology, 2011
Wang X, Han X, Zhou H L. Study of the numerical calculation of ground response under metro traffic loading in a loess area. Mod Tunneling Technol, 2014, 51: 152–160
Zheng J, Yu S F. Dynamic responses of underground structures generated by high-speed train loads (in Chinese). Struct Eng, 2013, 29: 46–50
Farhadian H, Aalianvari A, Katibeh H. Optimization of analytical equations of groundwater seepage into tunnels: A case study of Amirkabir tunnel. J Geol Soc India, 2012, 80: 96–100
Liu J S. Seepage formula of a fracture subject to normal stress (in Chinese). Hydrol Eng Geol, 1987: 36–37
Anagnostou G, Kovári K. Face stability conditions with earth-pressure-balanced shields. Tunn Undergr Space Tech, 1996, 11: 165–173
Broere W. Face stability calculation for a slurry shield in heterogeneous soft soils. In: Negro Jr A, Ferreira A A, Eds. Tunnels and Metropolises. Netherlands: A.A. Balkema Publishers, 1998. 215–227
Li X, Zhang W, Li D, et al. Influence of underground water seepage flow on surrounding rock deformation of multi-arch tunnel. J Cent South Univ Technol, 2008, 15: 69–74
Zhang W J, Chen Y M, Ling D S. Seepage and stability analysis of bank slopes (in Chinese). J Hydraul Eng, 2005, 36: 1510–1516
Lee I M, Nam S W, Ahn J H. Effect of seepage forces on tunnel face stability. Can Geotech J, 2003, 40: 342–350
Li Z L, Ren Q W, Wang Y H. Elasto-plastic analytical solution of deep-buried circle tunnel considering fluid flow field (in Chinese). Chin J Rock Mech Eng, 2004, 23: 1291–1295
Ji X M, Wang Y H. Hydraulic coupling analysis of tunnel excavation process (in Chinese). Chin J Undergr Space Eng, 2005, 1: 848–852
Ji X M. Discussion on the research of coupled solid and fluid flow in tunnel engineering (in Chinese). Chin J Undergr Space Eng, 2006, 2: 149–154
Lee I M, Nam S W. The study of seepage forces acting on the tunnel lining and tunnel face in shallow tunnels. Tunn Undergr Space Tech, 2001, 16: 31–40
Lee I M, Nam S W. Effect of tunnel advance rate on seepage forces acting on the underwater tunnel face. Tunn Undergr Space Tech, 2004, 19: 273–281
Li D Y, Li X B, Zhang W, et al. Stability analysis of surrounding rock of multi arch tunnel based on fluid structure interaction theory (in Chinese). Chin J Rock Mech Eng, 2007, 26: 1056–1064
Li Z P, Zhang M. Study on transient safety factor of unsaturated soil slope considering rainfall infiltration (in Chinese). China Civil Eng J, 2001, 34: 57–60
Cheng X, Dowding C H, Tian R. New methods of safety evaluation for rock/soil mass surrounding tunnel under earthquake. J Cent South Univ, 2014, 21: 2935–2943
Liu M, Huang M S, Li J J. Long term settlement analysis of saturated soft clay under subway load (in Chinese). Chin J Undergr Space Eng, 2006, 2: 813–817
Cheng X, Feng H, Qi S, et al. Dynamic response of curved wall LTSLS under the interaction of rainwater seepage and earthquake. Geotech Geol Eng, 2017, 35: 903–914
Zheng Y R, Zhao S Y. Application of strength reduction FEM in soil and rock slope (in Chinese). Chin J Rock Mech Eng, 2004, 23: 3381–3388
Cheng X S, Zheng Y R, Tian R R. Dynamic finite element strength reduction method of earthquake stability analysis of surrounding rock of tunnel (in Chinese). Rock Soil Mech, 2011, 32: 1241–1248
Cheng X S, Zheng Y R. Calculation discussion about safety factor of unlined loess tunnel wall rock structure under earthquake (in Chinese). Rock Soil Mech, 2011, 32: 761–766
Xie W P, Sun H G. FEM analysis on wave propagation in soils induced by high speed train loads (in Chinese). Chin J Rock Mech Eng, 2003, 22: 1180–1184
Chen Z Y, Zhou J X, Wang H J. Soil Mechanics. Beijing: Tsinghua University Press, 2002
Wang T H, Luo Y, Zhang H. Two-dimensional steady flow rate equation for loess joints (in Chinese). Chin J Geotech Eng, 2013, 35: 1115–1120
Li P C, Kong X Y, Lu D T. Mathematical modeling of flow in saturated porous media on account of fluid-structure coupling effect (in Chinese). J Hydrodyn, 2003, 18: 419–426
Yuan L J, Li Z S, Wu S Z, et al. Engineering Seepage Mechanics and Its Application. Beijing: China Building Materials Press, 2001
ADINA R & D, Inc. ADINA Theory and Modeling Guide, Volume I: ADINA Solids & Structures. Watertown MA, 2010. 559–561
Wang X, Wang L B. Dynamic analysis of a water-soil-pore water coupling system. Comp Struct, 2007, 85: 1020–1031
Hu Z Y, Luo Y S, Li Y. Experimental study on damping ratio variation characteristics of loess in different areas (in Chinese). Earthq Eng Eng Vib, 2010, 30: 167–172
Chen L, Chen G X, Li L M. Seismic response characteristics of the double-layer vertical overlapping metro tunnels under near-field and far-field ground motions (in Chinese). China Railw Sci, 2010, 31: 79–86
Cui Y X, Bi Z Q, Gong Q M. Dynamic analysis of ballastless tracksubgrade considering frequency-dependent subgrade equivalent parameters (in Chinese). China Sciencepaper, 2015, 10: 745–749
Su H J, Liu Z Z, Huang Z H, et al. A model test investigation on infiltration depth of soil slope under sustained rainfall (in Chinese). China Sci Paper, 2015, 10: 91–94
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Cheng, X., Ma, L., Yu, D. et al. Seismic stability of loess tunnels under the effects of rain seepage and a train load. Sci. China Technol. Sci. 61, 735–747 (2018). https://doi.org/10.1007/s11431-017-9151-2
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DOI: https://doi.org/10.1007/s11431-017-9151-2