Experimental Investigation on Deformation Behavior of Circular Underground Opening in Hard Soil using a 3D Physical Model | ||
| Journal of Mining and Environment | ||
| مقاله 7، دوره 13، شماره 3، مهر 2022، صفحه 727-749 اصل مقاله (4.06 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2022.12158.2213 | ||
| نویسندگان | ||
| Jinwei Fu1؛ Mohammad Reza Safaei2؛ Hadi Haeri1؛ Vahab Sarfarazi* 3؛ Mohammad Fatehi Marji4؛ Leige Xu1؛ Ali Arefnia5 | ||
| 1School of Civil Engineering and Transportation, North China University of Water Resources and Electric Power, Zhengzhou, 450046, China | ||
| 2School of Civil Engineering, Aria University of Sciences and Sustainability, Tehran, Iran | ||
| 3Department of mining engineering, Hamedan University of technology, Hamedan, Iran | ||
| 4Department of Mine Exploitation Engineering, Faculty of Mining and metallurgy, Institute of Engineering, Yazd University, Yazd, Iran | ||
| 5Department of Geotechnics & Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia | ||
| چکیده | ||
| In this work, the mechanical behavior of strata deformation due to drilling and surface loading is investigated using a 3D physical model. For this purpose, a scaled-down physical model is first designed. Then the tunnel drilling and support system are built. The subsidence experiments performed due to tunnel excavation and loading in a very dense and loose soil are performed. Soil is clayey sand (SC), and the percentages of its components are as sand (S = 1. 41%), gravel (G = 25%), and clay (C = 9.33%). Unstable tunnel support experiments are also carried out using physical simulation. Finally, deformations of soil surface and subsidence of strata are observed and recorded. In the tunnel with segmental support, 18.75% more load is applied than in the unsupported tunnel, and the total subsidence of the strata is reduced by 36.2%. The area of the deformed inner layers is decreased by 74.2%, and the length of the affected area in the largest layer is decreased by 48%. The depth of the cavity created at the surface is 46.66% less. | ||
| کلیدواژهها | ||
| 3D physical model؛ settlement؛ tunnel؛ excavation؛ segment | ||
| مراجع | ||
|
[1]. Meguid, M.A. Saada, O. Nunes, M.A. and Mattar, J. (2008). Physical modeling of tunnels in soft ground: A review. Tunn Undergr Sp Technol. 23 (2):185–98.
[2]. Idinger, G. Aklik, P. Wu, W. and Borja, RI. (2011). Centrifuge model test on the face stability of shallow tunnel. Acta Geotech. 6 (2):105–17.
[3]. Hoek, E. and Brown, E.T. (1980). Empirical Strength Criterion for Rock Masses. Vol. 106, Journal of the Geotechnical Engineering Division. pp. 1013–35.
[4]. Mair, R.J. Taylor, R.N. and Bracegirdle, A. (1993). Sub-surface settlement profiles above tunnels in clays. Géotechnique. 45 (2):361–2.
[5]. Hoek, E. and Diederichs, M.S. (2006). Empirical estimation of rock mass modulus. Int J Rock Mech Min Sci. 43 (2):203–15.
[6]. Kim, C. Baek, S. and Hong, S. (2005). Tunnel convergence analyses in heterogeneous/anisotropic rock masses. In: Yücel Erdem and Tülin Solak, editor. International World Tunnel Congress and the 31st ITA General Assembly. Istanbul, Turkey; pp. 1091–7.
[7]. Pickhaver, J.A. (2006). Numerical Modelling of Building Response to Tunnelling. University of Oxford, Thesis (Ph.D.), uk.bl.ethos.437034.
[8]. Zhou, K. Xia, M. (2009). Numerical Modelling for Designing Tunnel Support in Heavily Jointed Rock. 2009 Int Conf Electron Comput Technol. 471– 4.
[9]. Juneja, A. Roshan, N.S. (2010). Study on tunnelling induced ground deformation in reinforced soils. Phys Model Geotech–6th ICPMG ’06–Ng, Zhang &Wang © 2006 Taylor Fr Group, London.555–60.
[10]. Ma, L. Ding, L. and Luo, H. (2014). Non-linear description of ground settlement over twin tunnels in soil. Tunn Undergr Sp Technol. 42:144–51.
[11]. Hao, X.J. Feng, X.T. Yang, C.X. Jiang, Q. Li, S.J. (2015). Analysis of EDZ Development of Columnar Jointed Rock Mass in the Baihetan Diversion Tunnel. Rock Mech Rock Eng.43 (3):44-55.
[12]. Nikadat, N. Fatehi, M. and Abdollahipour, A. (2015). Numerical modelling of stress analysis around rectangular tunnels with large discontinuities (fault) by a hybridized indirect BEM. J Cent South Univ , 22 (11):4291–9.
[13]. Yang, F. Zhang, J. Yang, J. (2015). Stability analysis of unlined elliptical tunnel using finite element upper-bound method with rigid translatory moving elements. Tunn Undergr Sp Technol. 50:13–22.
[14]. Zhang, Z.X. (2016). Three-dimensional finite-element analysis on ground responses during twin-tunnel construction using the URUP method. Tunn Undergr Sp Technol Inc Trenchless Technol Res. 58:133–46.
[15]. Kiani, M. Akhlaghi, T. (2016). Experimental modeling of segmental shallow tunnels in alluvial affected by normal faults. Tunn Undergr Sp Technol. 51:108–19.
[16]. Wang, Y. (2017). Effect of a Fault Fracture Zone on the Stability of Tunnel-Surrounding Rock. Int J Geomech. 04016135:1-20.
[17]. Abdollahi, M.S. (2019). A 3D numerical model to determine suitable reinforcement strategies for passing TBM through a fault zone, a case study: Safaroud water transmission tunnel, Iran, Tunneling and Underground Space Technology 88, 186-199
[18]. Messerli, J. (2010). Experimental study into tunnel face collapse in sand. Phys Model Geotech. 1(1961):575–80.
[19]. Peck, R. (1969). Deep excavation and tunneling in soft ground. In: State of the Art Report. In: 7th International Conference on Soil Mechanics and Foundation Engineering. p. 225–90.
[20]. Sagasetta, C. (1987). Analysis of underground soil deformation due to the ground loss. Geotchhnique. 37(3):301–30.
[21]. Fraldi, M. and Guarracino, F. (2010). Analytical solutions for collapse mechanisms in tunnels with arbitrary cross sections. International Journal of Solids and Structures. 47 (2): 216-223.
[22]. Yang, X.L. Yang, Z.H. Li, Y.X. and Li, S.C. (2013). Upper bound solution for supporting pressure acting on shallow tunnel based on modified tangential technique. Journal of Central South University. 20 (12): 3676-3682.
[23]. Mollon, G. Dias, D. and Soubra, A.H. (2011). Rotational failure mechanisms for the face stability analysis of tunnels driven by a pressurized shield. International Journal for Numerical and Analytical Methods in Geomechanics. 35 (12): 1363-1388.
[24]. Ibrahim, E. Soubra, A.H. Mollon, G. (2015). Three-dimensional face stability analysis of pressurized tunnels driven in a multilayered purely frictional medium. Tunneling and Underground Space Technology, 49: 18-34.
[25]. Pan, Q. and Dias, D. (2017). Upper-bound analysis on the face stability of a non-circular tunnel. Tunnelling and Underground Space Technology, 62, 96-102.
[26]. Pan, Q. and Dias, D. (2017). Upper-bound analysis on the face stability of a non-circular tunnel. Tunnelling and Underground Space Technology, 62, 96-102.
[27]. Chen, R. P. (2013). Experimental study on face instability of shield tunnel in sand. Tunnelling and Underground Space Technology, 33, 12-21.
[28]. Yaylaci, M. Terzi, C. and Avcar, M. (2019). Numerical analysis of the receding contact problem of two bonded layers resting on an elastic half plane, Struct. Eng. Mech., 72 (6): 775-783.
[29]. Yaylaci, M. and Avcar, M. (2020). Finite element modeling of contact between an elastic layer and two elastic quarter planes, Comput. Concrete. 26 (2): 107-114.
[30]. Yaylaci, M., Adiyaman, E., Oner, E., and Birinci, A. (2020). Examination of analytical and finite element solutions regarding contact of a functionally graded layer, Struct. Eng. Mech. 76 (3): 325-336.
[31]. Yaylaci, M. Eyuboglu, A. Adiyaman, G. Uzun Yaylaci, E. O ner, E. and Birinci, A. (2021a). Assessment of different solution methods for receding contact problems in functionally graded layered mediums, Mech. Mater., 154, 103730.
[32]. Yaylaci, M. Yayli, M. Uzun Yaylaci, E. Olmez, H. and Birinci, A. (2021b). Analyzing the contact problem of a functionally graded layer resting on an elastic half plane with theory of elasticity, finite element method and multilayer perceptron, Struct. Eng. Mech., 78 (5): 585-597.
[33]. Gil., D.M. and Golewski, G.L. (2018). Effect of silica fume and siliceous fly ash addition on the fracture toughness of plain concrete in mode I, IOP Conf. Ser. Mater. Sci. Eng. 416 012065.
[34]. Golewski, G.L. (2018). An analysis of fracture toughness in concrete with fly ash addition, considering all models of cracking, IOP Conf. Ser. Mater. Sci. Eng, 416 012029
[35]. Golewski, G.L. (2019). Physical characteristics of concrete, essential in design of fracture-resistant, dynamically loaded reinforced concrete structures, Material Design and Processing Communications. 1 (5): 33-44.
[36]. Golewski, G.L. (2021). On the special construction and materials conditions reducing the negative impact of vibrations on concrete structures, Materials Today: Proceedings, 66-77.
[37]. Golewski, G.L. (2022). Strength and microstructure of composites with cement matrixes modified by fly ash and active seeds of CSH phase, Structural Engineering and Mechanics. 82 (4): 543-556.
[38]. Golewski, G.L. (2021). Application of the C-S-H phase nucleating agents to improve the performance of sustainable concrete composites containing fly ash for use in the precast concrete industry, Materials. 14 (21): 6514.
[39]. Das, R. Sirdesai, N.N. and Singh, T.N. (2017). Analysis of Deformational Behavior of Circular Underground Opening in Soft Ground Using Three-Dimensional Physical Model, the 51st US Rock Mechanics / Geomechanics Symposium held in San Francisco, California, USA, 25-28. | ||
|
آمار تعداد مشاهده مقاله: 525 تعداد دریافت فایل اصل مقاله: 677 |
||