Abstract
A crucial deformation phenomenon is observed in shale and silty clay sections in a tunnel. To analyse the reinforcement and support mechanism and behaviour of the tunnel support structure in layered soft rocks, field tests for the axial force of the cartridge rock bolt, surrounding rock pressure, stress of a steel I-beam and lattice girder were performed. Based on the field deformation analysis data, the reinforcement behaviours of the cartridge rock bolt and steel floral pipe, and support behaviours of lattice girder and steel I-beam in the layered rock mass and silty clay were analysed.
Similar content being viewed by others
References
Boon CW (2019) Study of reinforcement support mechanisms for wide-span horse-shoe-shaped openings in horizontally layered jointed rock using the distinct element method. Rock Mechanics and Rock Engineering 52(4):1179–1191, DOI: https://doi.org/10.1007/s00603-018-1615-x
Chen Z, He C, Xu G, Ma G, Yang W (2019a) Supporting mechanism and mechanical behavior of a double primary support method for tunnels in broken phyllite under high geo-stress. Bulletin of Engineering Geology and the Environment 78(7):5253–5267, DOI: https://doi.org/10.1007/s10064-019-01479-1
Chen Y, Teng J, Sadiq, RA Bin, Zhang K (2020) Experimental study of bolt anchoring mechanism for bedded rock mass. International Journal of Geomechanics 20(4):04020019, DOI: https://doi.org/10.1061/(ASCE)GM.1943-5622.0001561
Chen Y, Zhang Y, Li X (2019b) Experimental study on influence of bedding angle on gas permeability in coal. Journal of Petroleum Science and Engineering 179:173–179, DOI: https://doi.org/10.1016/j.petrol.2019.04.010
Chen Y, Zuo J, Liu D, Wang Z (2019c) Deformation failure characteristics of coal–rock combined body under uniaxial compression: Experimental and numerical investigations. Bulletin of Engineering Geology and the Environment 78(5):3449–3464, DOI: https://doi.org/10.1007/s10064-018-1336-0
Gao Y, Xu F, Zhang Q, He P, Qin Z (2018) Geotechnical monitoring and analyses on the stability and health of a large cross-section railway tunnel constructed in a seismic area. Journal of the International Measurement Confederation 122:620–629, DOI: https://doi.org/10.1016/j.measurement.2017.10.039
Kong X, Wang E, Hu S, Shen R, Li X, Zhan T (2016) Fractal characteristics and acoustic emission of coal containing methane in triaxial compression failure. Journal of Applied Geophysics 124:139–147, DOI: https://doi.org/10.1016/j.jappgeo.2015.11.018
Lisjak A, Garitte B, Grasselli G, Müller HR, Vietor T (2015) The excavation of a circular tunnel in a bedded argillaceous rock (Opalinus Clay): Short-term rock mass response and FDEM numerical analysis. Tunnelling and Underground Space Technology 45:227–248, DOI:https://doi.org/10.1016/j.tust.2014.09.014
Liu X, Liu F, Song K (2022) Mechanism analysis of tunnel collapse in a soft-hard interbedded surrounding rock mass: A case study of the yangshan tunnel in China. Engineering Failure Analysis 138:106304, DOI: https://doi.org/10.1016/j.engfailanal.2022.106304
Tavallali A, Vervoort A (2010) Effect of layer orientation on the failure of layered sandstone under Brazilian test conditions. Journal of Rock Mechanics and Geotechnical Engineering 47(2):313–322, DOI: https://doi.org/10.1016/j.ijrmms.2010.01.001
Vergara M R, Kudella P, Triantafyllidis T (2015) Large scale tests on jointed and bedded rocks under multi-stage triaxial compression and direct shear. Rock Mechanics and Rock Engineering 48(1):75–92, DOI: https://doi.org/10.1007/s00603-013-0541-1
Wang HT, Liu P, Li SC, Li XJ, Zhang X (2022) Limit analysis of uplift failure mechanisms for a high-pressure gas storage tunnel in layered Hoek-Brown rock masses. Engineering Failure Analysis 138:106274, DOI: https://doi.org/10.1016/j.engfailanal.2022.106274
Wang Q, Qin Q, Jiang B, Yu HC, Pan R, Li SC (2019) Study and engineering application on the bolt-grouting reinforcement effect in underground engineering with fractured surrounding rock. Tunnelling and Underground Space Technology 84:237–247, DOI: https://doi.org/10.1016/j.tust.2018.11.028
Xu F, Li S, Zhang Q, Li L, Shi S, Zhang Q (2017) A new type support structure introduction and its contrast study with traditional support structure used in tunnel construction. Tunnelling and Underground Space Technology 63:171–182, DOI: https://doi.org/10.1016/j.tust.2016.11.012
Zhu Q, Li T, Du Y, Zhang H, Ran J, Li W, Zhang S (2022) Failure and stability analysis of deep soft rock roadways based on true triaxial geomechanical model tests. Engineering Failure Analysis 137:106255, DOI: https://doi.org/10.1016/j.engfailanal.2022.106255
Acknowledgments
This study was financially supported by the National Natural Science Foundation of China (52009131).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, Y., Li, Z. & Cui, T. Field Investigation of the Reinforcement and Support Mechanism for a Tunnel in Layered Soft Rock Mass. KSCE J Civ Eng 27, 4534–4543 (2023). https://doi.org/10.1007/s12205-023-0668-x
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12205-023-0668-x