Geomechanics and Engineering

  • 제16권4호
  • /
  • Pages.399-413
  • /
  • 2018
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Field measurement and numerical simulation of excavation damaged zone in a 2000 m-deep cavern

  • Zhang, Yuting (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute) ;
  • Ding, Xiuli (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute) ;
  • Huang, Shuling (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute) ;
  • Qin, Yang (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute) ;
  • Li, Peng (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute) ;
  • Li, Yujie (Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Changjiang River Scientific Research Institute)
  • 투고 : 2018.06.04
  • 심사 : 2018.07.30
  • 발행 : 2018.11.20
⟨ 이전 논문 다음 논문 ⟩

초록

This paper addresses the issue of field measurement of excavation damage zone (EDZ) and its numerical simulation method considering both excavation unloading and blasting load effects. Firstly, a 2000 m-deep rock cavern in China is focused. A detailed analysis is conducted on the field measurement data regarding the mechanical response of rock masses subjected to excavation and blasting operation. The extent of EDZ is revealed 3.6 m-4.0 m, accounting for 28.6% of the cavern span, so it is significantly larger than rock caverns at conventional overburden depth. The rock mass mechanical response subjected to excavation and blasting is time-independent. Afterwards, based on findings of the field measurement data, a numerical evaluation method for EDZ determination considering both excavation unloading and blasting load effects is presented. The basic idea and general procedures are illustrated. It features a calibration operation of damage constant, which is defined in an elasto-plastic damage constitutive model, and a regression process of blasting load using field blasting vibration monitoring data. The numerical simulation results are basically consistent with the field measurement results. Further, some issues regarding the blasting loads, applicability of proposed numerical method, and some other factors are discussed. In conclusion, the field measurement data collected from the 2000 m-deep rock cavern and the corresponding findings will broaden the understanding of tunnel behavior subjected to excavation and blasting at great depth. Meanwhile, the presented numerical simulation method for EDZ determination considering both excavation unloading and blasting load effects can be used to evaluate rock caverns with similar characteristics.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. Almusallam, T.H., Elsanadedy, H.M., Abbas, H., Alsayed, S.H. and Al-Salloum, Y.A. (2010), "Progressive collapse analysis of a RC building subjected to blast loads", Struct. Eng. Mech., 36(3), 301-319. https://doi.org/10.12989/sem.2010.36.3.301
  2. Bayraktar, A., Turker, T., Altunisik, A.C. and Sevim, B. (2010), "Evaluation of blast effects on reinforced concrete buildings considering operational modal analysis results", Soil Dyn. Earthq. Eng., 30(5), 310-319. https://doi.org/10.1016/j.soildyn.2009.12.005
  3. Bobet, A. (2009), "Application to excavation damage zone and rockbolt support", Rock Mech. Rock Eng., 42(2), 147-174. https://doi.org/10.1007/s00603-007-0140-0
  4. Chen, J., Jiang, D., Jiang, D.Y., Fan, J.Y. and He, Y. (2016), "The mechanical properties of rock salt under cyclic loading-unloading experiments", Geomech. Eng., 10(3), 324-334.
  5. Christaras, B. and Chatziangelou, M. (2014), "Blastability quality system (BQS) for using it, in bedrock excavation", Struct. Eng. Mech., 51(5), 823-845. https://doi.org/10.12989/SEM.2014.51.5.823
  6. Frantziskonis, G. and Desai, C.S. (1987), "Constitutive model with strain softening", Int. J. Solid. Struct., 23(6), 733-750. https://doi.org/10.1016/0020-7683(87)90076-X
  7. Gholizadeh, S., Leman, Z. and Baharudin, B.T.H.T. (2015), "A review of the application of acoustic emission technique in engineering", Struct. Eng. Mech., 54(6), 1075-1095. https://doi.org/10.12989/sem.2015.54.6.1075
  8. Han, Y.Z. and Liu, H.B. (2016), "Failure of circular tunnel in saturated soil subjected to internal blast loading", Geomech. Eng., 11(3), 421-438. https://doi.org/10.12989/gae.2016.11.3.421
  9. Jeon, S., Kim, T.H. and You, K.H. (2015), "Characteristics of crater formation due to explosives blasting in rock mass", Geomech. Eng., 9(3), 329-344. https://doi.org/10.12989/gae.2015.9.3.329
  10. Jin, P., Wang, E. and Song, D. (2017), "Study on correlation of acoustic emission and plastic strain based on coal-rock damage theory", Geomech. Eng., 12(4), 627-637. https://doi.org/10.12989/gae.2017.12.4.627
  11. Lesparre, N., Gibert, D., Nicollin, F., Nussbaum, C. and Adler, A. (2013), "Monitoring the excavation damaged zone by three-dimensional reconstruction of electrical resistivity", Geophys. J. Int., 195(2), 972-984. https://doi.org/10.1093/gji/ggt282
  12. Li, H.B., Liu, M.C., Xing, W.B., Shao, S. and Zhou, J.W. (2017), "Failure mechanisms and evolution assessment of the excavation damaged zones in a large-scale and deeply buried underground powerhouse", Rock Mech. Rock Eng., 50(7), 1883-1900.
  13. Li, S.J., Feng, X.T., Li, Z.H., Chen, B.R., Jiang, Q., Wu, S.Y., Hu, B. and Xu, J.S. (2011), "In situ experiments on width and evolution characteristics of excavation damaged zone in deeply buried tunnels", Sci. China Technol. Sci., 54(s1), 167-174. https://doi.org/10.1007/s11431-011-4637-0
  14. Liang, M., Lu, F., Zhang, G. and Li, X. (2017), "Design of stepwise foam claddings subjected to air-blast based on voronoi model", Steel Compos. Struct., 23(1), 107-114. https://doi.org/10.12989/SCS.2017.23.1.107
  15. Liu, H.B., Xiao, M. and Chen, J.T. (2013), "Parametric modeling on spatial effect of excavation-damaged zone of underground cavern", J. Central South Univ., 20(4), 1085-1093. https://doi.org/10.1007/s11771-013-1588-6
  16. Lu, W.B., Yang, J.H. and Chen, M. (2011), "Mechanism and equivalent numerical simulation of transient release of excavation load for deep tunnel", Chin. J. Rock Mech. Eng., 30(6), 1089-1096.
  17. Oncu, M.E., Yon, B., Akkoyun, O. and Taskiran, T. (2015), "Investigation of blast-induced ground vibration effects on rural buildings", Struct. Eng. Mech., 54(3), 545-560. https://doi.org/10.12989/sem.2015.54.3.545
  18. Song, Z.P., Li, S.H., Wang, J.B., Sun, Z.Y., Liu, J. and Chang, Y.Z. (2018), "Determination of equivalent blasting load considering millisecond delay effect", Geomech. Eng., 11(5), 745-754.
  19. Tokiwa, T., Tsusaka, K., Matsubara, M., Ishikawa, T. and Ogawa, D. (2013), "Formation mechanism of extension fractures induced by excavation of a gallery in soft sedimentary rock, Horonobe area, Northern Japan.", Geosci. Front., 4(1), 105-111. https://doi.org/10.1016/j.gsf.2012.05.003
  20. Toy, A.T. and Sevim, B. (2017), "Numerically and empirically determination of blasting response of a RC retaining wall under TNT explosive", Adv. Concrete Construct., 5(5), 493-512. https://doi.org/10.12989/acc.2017.5.5.493
  21. Wang, H.P., Li, Y., Li, S.C., Zhang, Q.S. and Liu, J. (2016), "An elasto-plastic damage constitutive model for jointed rock mass with an application", Geomech. Eng., 11(1), 77-94. https://doi.org/10.12989/gae.2016.11.1.077
  22. Xue, X., Yang, X. and Zhang, W. (2013), "Damage analysis of arch dam under blast loading", Comput. Concrete, 12(1), 65-77. https://doi.org/10.12989/cac.2013.12.1.065
  23. Yang, J.H., Lu, W.B., Hu, Y.G., Chen, M. and Yan, P. (2015), "Numerical simulation of rock mass damage evolution during deep-buried tunnel excavation by drill and blast", Rock Mech. Rock Eng., 48(5), 2045-2059. https://doi.org/10.1007/s00603-014-0663-0
  24. Zhang, Y.T., Ding, X.L., Huang, S.L., Pei, Q.T. and Wu, Y.J. (2017), "A framework for modelling mechanical behavior of surrounding rocks of underground openings under seismic load", Earthq. Struct., 13(6), 519-529. https://doi.org/10.12989/EAS.2017.13.6.519

피인용 문헌

  1. Study on Dynamic Characteristics of Deep Siltstone under High Static Stress and Frequent Dynamic Disturbance vol.2019, pp.None, 2019, https://doi.org/10.1155/2019/2087684
  2. Theoretical and Experimental Study of the Effects of Impact Drilling Parameters on the Properties of Surrounding Rock Damage vol.2020, pp.None, 2020, https://doi.org/10.1155/2020/8865619
  3. Mechanical and Acoustic Emission Characteristics of Sandstone through Triaxial Unloading Test after Cyclic Freezing-Thawing Treatment vol.2020, pp.None, 2018, https://doi.org/10.1155/2020/7150536
  4. Parametric Evaluation of Simultaneous Effects of Damaged Zone Parameters and Rock Strength Properties on GRC vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/2237918
  5. Estimation of the excavation damage zone in TBM tunnel using large deformation FE analysis vol.24, pp.4, 2018, https://doi.org/10.12989/gae.2021.24.4.323
  6. Investigation of blasting impact on limestone of varying quality using FEA vol.25, pp.2, 2018, https://doi.org/10.12989/gae.2021.25.2.111
  7. Deformation modulus of rock foundation in Deriner Arch Dam vol.26, pp.1, 2018, https://doi.org/10.12989/gae.2021.26.1.063