Investigation on the efficiency of different methods for evaluation of ground settlement due to excavation of Tabriz metro tunnel, line 2

Document Type : Research Article

Authors

1 Department of Civil Engineering, Seraj Institute of Higher Education, Tabriz, Iran

2 Department of Mining Engineering, Faculty of Engineering, Urmia University, Urmia, Iran

Abstract

Mechanized shallow tunneling in urban areas and soft grounds leads to horizontal and vertical displacements at the host materials of the tunnel and causes the ground settlement due to tunneling which can have undesirable and even destructive impacts on surface structures and subsurface Facilities. In the present study, ground settlement induced by the mechanized excavation of the Tabriz Metro tunnel, Line 2, is considered a case study using semi-experimental, analytical and numerical methods, and the impact of different factors will be investigated. For this purpose, a section of the studied tunnel was selected for evaluating the settlement via mentioned three methods, and the results were analyzed and compared with the real settlements, measured during the tunnel excavation. The results show that the semi-empirical method releases relatively higher values of settlement because of the intrinsic and fundamental specifications of the method while the analytical and, especially, numerical methods generally provide logical and reliable outcomes because of the utilization of more parameters of tunnel and host soil such as geotechnical characteristics of host soil and geometrical properties of the tunnel. In this regard, to emphasize the valuable capabilities of numerical methods, the effect of several factors on the amount of settlement was studied via FLAC 2D software. The outcomes showed that the ground settlement increases when the elasticity modulus of grout and the elasticity modulus of soil decrease as well as when the surface load increases and the groundwater level is dropped.

Keywords

Main Subjects

References

[1] K. Terzaghi, Rock Tunneling with Steel Supports, Commercial Shearing and Stamping Company, Youngstown, 1946.
[2] R.B. Peck, Deep excavation and tunneling in soft ground, in:  7th International Conference on Soil Mechanics and Foundation Engineering, Mexico, 1969, pp. 225-290.
[3] M.P. O'reilly, B.M. New, settlements above tunnels in the united kingdom - their magnitude and prediction, in:  Tunnelling 82. Papers presented at the third International Symposium, organized by the Institution of Mining and Metallurgy., 1982, pp. 173-181.
[4] P.B. Attewell, J. Yeates, A.R. Selby, Soil movements induced by tunnelling and their effects on pipelines and structures,  (1986).
[5] R.J. Mair, R. Taylor, Bored tunnelling in the urban environments, in:  Fourteenth International Conference on Soil Mechanics and Foundation Engineering. ProceedingsInternational Society for Soil Mechanics and Foundation Engineering, 1999.
[6] C. Zhu, S. Wang, S. Peng, Y. Song, Surface settlement in saturated loess stratum during shield construction: Numerical modeling and sensitivity analysis, Tunnelling Underground Space Technology, 119 (2022) 104205.
[7] X. Hu, C. He, G. Walton, Y. Fang, J.W. Ju, Response of sandy soil to the volume losses at the tunnel face level, Soils Foundations, 61(5) (2021) 1399-1418.
[8] T. Xu, A. Bezuijen, M. Thewes, Pressure infiltration characteristics of foam for EPB shield tunnelling in saturated sand – part 2: soil–foam mixture, Géotechnique, 72(4) (2022) 295-308.
[9] S.C. Möller, Tunnel induced settlements and structural forces in linings, Univ. Stuttgart, Inst. f. Geotechnik Stuttgart, Germany, 2006.
[10] R. Mair, Tunnelling and geotechnics: new horizons, Géotechnique, 58(9) (2008) 695-736.
[11] N. Loganathan, An innovative method for assessing tunnelling-induced risks to adjacent structures, Parsons Brinckerhoff Incorporated, 2011.
[12] V. Fargnoli, D. Boldini, A. Amorosi, TBM tunnelling-induced settlements in coarse-grained soils: The case of the new Milan underground line 5, unnelling Underground Space Technology, 38 (2013) 336-347.
[13] Y.-S. Fang, C.-T. Wu, S.-F. Chen, C. Liu, An estimation of subsurface settlement due to shield tunneling, Tunnelling underground space technology, 44 (2014) 121-129.
[14] M. Powers, Structural Reliability Analysis of Tunneling-Induced Ground Settlement and Damage to Adjacent Buildings: A Case Study using Moment Methods and FLAC2D, 2017.
[15] A. Hamrouni, D. Dias, X. Guo, Behavior of Shallow Circular Tunnels—Impact of the Soil Spatial Variability, Geosciences, 12(2) (2022) 97.
[16] A.H. Rezaei, M. Shirzehhagh, M.R. Baghban Golpasand, EPB tunneling in cohesionless soils: A study on Tabriz Metro settlements, Geomechanics Engineering, 19(2) (2019) 153-165.
[17] H. Katebi, A. Rezaei, M. Hajialilue-Bonab, A. Tarifard, Assessment the influence of ground stratification, tunnel and surface buildings specifications on shield tunnel lining loads (by FEM), Tunnelling Underground Space Technology, 49 (2015) 67-78.
[18] M.R. Baghban Golpasand, Evaluation of the effect of Engineering Geological characteristics of soil on ground settlement induced by shallow Tunneling in urban area (in Persian), Tarbiat Modares University, Tehran, Iran, 2015.
[19] M.R. Baghban Golpasand, M.R. Nikudel, A. Uromeihy, Effect of engineering geological characteristics of Tehran's recent alluvia on ground settlement due to tunneling, Geopersia, 4(2) (2014) 185-199.
[20] L. Nikakhtar, S. Zare, H. Mirzaei Nasirabad, Global Sensitivity Analysis in the Surface Settlement Prediction Caused by Mechanized Tunneling, Amirkabir Journal of Civil Engineering, 53(6) (2021) 15-15.
[21] R.J. Mair, R.N. Taylor, A. Bracegirdle, Subsurface settlement profiles above tunnels in clays, Géotechnique 43(2) (1993) 315-320.
[22] M.R. Baghban Golpasand, M.R. Nikudel, A. Uromeihy, Specifying the real value of volume loss (VL) and its effect on ground settlement due to excavation of Abuzar tunnel, Tehran, Bulletin of Engineering Geology and the Environment, 75(2) (2016) 485-501.
[23] M.R. Baghban Golpasand, M. Nikudel, A. Uromeihy, Effect of Engineering Geological Factors on the Parameters Associated with the Empirical Study of Ground Settlement due to Excavation of Abuzar Tunnel, Tehran, Journal of Engineering Geology, 10(3) (2017) 3559-3586.
[24] A.H. Rezaei, M. Ahmadi-adli, The Volume Loss: Real Estimation and Its Effect on Surface Settlements Due to Excavation of Tabriz Metro Tunnel, Geotechnical and Geological Engineering, 38(3) (2020) 2663-2684.
[25] V. Guglielmetti, P. Grasso, A. Mahtab, S. Xu, Mechanized Tunnelling in Urban Areas: Design methodology and construction control, CRC Press, 2008.
[26] W.J. Rankin, Ground movements resulting from urban tunnelling: predictions and effects, Engineering Geology Special Publications, 5(1) (1988) 79-92.
[27] M.R. Baghban Golpasand, M. Nikudel, A. Uromeihy, Predicting the occurrence of mixed face conditions in tunnel route of Line 2 Tabriz metro, Tabriz, Iran, in:  Global View of Engineering Geology, 2013, pp. 487-492.
[28] ITP_Consulting_Engineering_Company, Engineering geological profile of tunnel route from west shaft to S04 station, 2017.
[29] W.G. No, International_Tunnelling_Association, Guidelines for the design of shield tunnel lining, Tunnelling Underground Space Technology, 15(3) (2000) 303-331.
[30] DAUB, Recommendations for selecting and evaluating tunnel boring machines, in:  Tunnel 1997, pp. 20-35.
[31] A. Verruijt, J. Booker, Surface settlements due to deformation of a tunnel in an elastic half plane, Geotechnique, 48(5) (1998) 709-713.
[32] N. Loganathan, H.G. Poulos, Tunneling Induced Ground Deformation and their Effect on Adjacent Piles, in:  Proceeding of 10th Australian Tunneling Conf, Melbourne, Victoria, 1999, pp. 1-34.
[33] A. Bobet, Analytical Solutions for Shallow Tunnels in Saturated Ground, Journal of Engineering Mechanics, (ASCE), 127(12) (2001) 1258-1266.
[34] K.H. Park, Analytical solution for tunnelling-induced ground movement in clays, Tunnelling and Underground Space Technology, 20(3) (2005) 249-261.
[35] K. Lee, R.K. Rowe, K. Lo, Subsidence owing to tunnelling. I. Estimating the gap parameter, Canadian geotechnical journal, 29(6) (1992) 929-940.
[36] M.H. Khalaj Zadeh, M. Azadi, The Effects of Tunnel Excavation on the Seismic Response of Ground Surface Using Finite Difference Method, Amirkabir Journal of Civil Engineering, 51(1) (2019) 99-108.
[37] M.R. Baghban Golpasand, N.A. Do, D. Dias, M.-R. Nikudel, Effect of the lateral earth pressure coefficient on settlements during mechanized tunneling, Geomechanics and Engineering, 16(6) (2018) 643-654.
[38] M.R. Baghban Golpasand, N.A. Do, D. Dias, Impact of pre-existent Qanats on ground settlements due to mechanized tunneling, Transportation Geotechnics, 21 (2019) 100262.
[39] N.A. Do, D. Dias, P. Oreste, I.J.G.E. Djeran-Maigre, 2D numerical investigations of twin tunnel interaction, Geomechanics and Engineering, 6(3) (2014) 263-275.
[40] M. Shirzehhagh, M. Oliaei, Numerical Study of using Diaphragm Wall to Mitigate Mechanized Tunneling Induced Settlements, Amirkabir Journal of Civil Engineering, 53(12) (2022) 5-5.
[41] E. Farrokh, Face Pressure Evaluation in Serviceability Limit State, Amirkabir Journal of Civil Engineering, 53(8) (2021) 24-24.
[42] G.B. Golpasand, M. Farzam, S. Soleymani Shishvan, Experimental and numerical investigation of the effect of steel fiber on fiber reinforced concrete under multiaxial compression, Amirkabir Journal of Civil Engineering, 53(6) (2021) 23-23.
[43] G.B. Golpasand, M. Farzam, S.S. Shishvan, Concrete, FEM investigation of SFRCs using a substepping integration of constitutive equations, Computers and Concrete, 25(2) (2020) 181-192.
[44] G.B. Golpasand, M. Farzam, S.S. Shishvan, Behavior of recycled steel fiber reinforced concrete under uniaxial cyclic compression and biaxial tests, Construction and Building Materials, 263 (2020) 120664.
[45] N.A. Do, D. Dias, P. Oreste, Numerical investigation of segmental tunnel linings-comparison between the hyperstatic reaction method and a 3D numerical model, Geomechanics and Engineering, 14(3) (2018) 293-299.
[46] J. Dunnicliff, Geotechnical instrumentation for monitoring field performance, John Wiley & Sons, 1993.
[47] L. Piciullo, S. Ritter, A.O.K. Lysdahl, J. Langford, F. Nadim, Assessment of building damage due to excavation-induced displacements: The GIBV method, Tunnelling and Underground Space Technology, 108 (2021) 103673.
Amirkabir Journal of Civil Engineering
Volume 54, Issue 10
January 2023
Pages 3777-3800

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