Abstract
In view of the geotechnical engineering and engineering geology, the Seyrantepe underground openings have important characteristics. Although these underground openings have thin roof thickness, large parallel span, thin pillars and low rock mass strength, they are standing up for years. Due to the rock masses being complicated and inhomogeneous material and containing discontinuities, it is commonly difficult to obtain the required mechanical parameters for the analyses. In this paper, a combined analysis, including failure-based back analysis, Hoek–Brown and Mohr–Coulomb failure criteria, was executed to determine the cohesion, frictional angle and tensile strength of the rock mass. Integrated numerical, analytical and empirical analyses were performed to assess the stability of the underground openings, which were excavated from limestone. The effects of the adjacent openings on the stability and failure zones were also investigated. The analysis shows that considerably important parameter for the roof stability is the tensile strength of the rock mass. While the lowest tensile strength is obtained from Hoek–Brown criterion, Mohr–Coulomb criterion gives the highest tensile strength. Numerical analysis shows that adjacent openings affect the stability and failure process. According to the bending theory, the limit of the roof span ranges between 11 and 22.5 m depending on roof thicknesses of 9 and 25 m, respectively. Although these underground openings are standing for a long time, results of the analyses show that some protective measures against instability are necessary.
Similar content being viewed by others
References
Alejano LR, Taboada J, García-Bastante F, Rodriguez P (2008) Multi-approach back-analysis of a roof bed collapse in a mining room excavated in stratified rock. Int J Rock Mech Min Sci 45:899–913. https://doi.org/10.1016/j.ijrmms.2007.10.001
Aydan Ö, Tokashiki N (2011) A comparative study on the applicability of analytical stability assessment methods with numerical methods for shallow natural underground openings. In: The 13th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Melbourne, Australia, pp. 964–969
Aydan Ö, Geniş M, Tokashiki N (2012) Some consideration on yield (failure) criteria in rock mechanics. In: The 46th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, 24–27 June 2012, Chicago, IL
Aydan Ö, Ulusay R, Tokashiki N (2014) A new rock mass quality rating system: RockMass Quality Rating (RMQR) and its application to the estimation of geomechanical characteristics of rock masses. Rock Mech Rock Eng 47(4):1255–1276. https://doi.org/10.1007/s00603-013-0462-z
Barton NR, Lien R, Lunde J (1974) Engineering classification of rock masses for the design of tunnel support. Rock Mech 6:189–239. https://doi.org/10.1007/BF01239496
Bieniawski ZT (1989) Engineering rock mass classifications. Wiley, New York
Canakci H (2007) Collapse of caves at shallow depth in Gaziantep city center, Turkey: a case study. Environ Geol 53:915–922. https://doi.org/10.1007/s00254-007-0802-y
Coskun B, Coskun B (2000) The Dead Sea Fault and related subsurface structures, Gaziantep Basin, southeast Turkey. Geol Mag 137:175–192. https://doi.org/10.1017/S0016756800003770
Deere DU, Miller DW (1967) The rock quality designation (RQD) index in practice, classification systems for engineering purposes. American Society for Testing and Materials, Philadelphia, ASTM STP, pp 91–101
Ghorbani M, Sharifzadeh M (2009) Long term stability assessment of Siah Bisheh Powerhouse cavern based on displacement back analysis method. Tunn Undergr Sp Technol 24:574–583. https://doi.org/10.1016/j.tust.2009.02.007
Grimstad E, Barton N (1993) Updating of the Q-system for NMT. In: Proceedings on International Symposium on Sprayed Concrete, Fagernes, Norway. Norwegian Concrete Association, Oslo, 22–26 October 1993, pp 46–66
Hatzor YH, Wainshtein I, Mazor DB (2010) Stability of shallow karstic caverns in block rock masses. Int J Rock Mech Min Sci 47:1289–1303. https://doi.org/10.1016/j.ijrmms.2010.09.014
Hoek E (1994) Strength of rock and rock masses. ISRM News Journal 2(2):4–16
Hoek E (2007) Practical Rock Engineering. https://www.rocscience.com/assets/resources/learning/hoek/Practical-Rock-Engineering-Full-Text.pdf. Accessed 5 Aug 2021
Hoek E, Brown ET (2019) The Hoek–Brown failure criterion and GSI – 2018 edition. J Rock Mech Geotech Eng 11:445–463. https://doi.org/10.1016/j.jrmge.2018.08.001
Hoek E, Kaiser PK, Bawden WF (1995) Support of underground excavations in hard rock. Balkema, Rotterdam
Hoek E, Marinos PG (2000) Predicting tunnel squeezing problems in weak heterogeneous rock masses. Tunnels and Tunnelling International 132(11):45–51
Hoek E, Carranza-Torres CT, Corkum B (2002) Hoek-Brown failure criterion-2002 edition. International Proceedings of the 5th North American Rock Mechanics Symposium, Toronto, pp 267–273
ISRM (2007) The complete ISRM suggested methods for rock characterization, testing and monitoring: 1974–2006. In: Ulusay R, Hudson JA (eds), suggested methods prepared by the ISRM commission on testing methods. Compilation arranged by the ISRM Turkish National Group. Kozan Ofset, Ankara, p 628
Kaiser PK, Mackay C, Gale AD (1986) Evaluation of rock classification at B.C. Rail Tumbler Ridge Tunnels. Int J Rock Mech Rock Eng 19:205–234
Lauffer H (1958) Gebirgsklassifizierung Für Den Stollenbau Geol Bauwesen 24:46–51
MTA (1997) Geological map of the Gaziantep-K24 quadrangle. General Directorate of Mineral Research And Exploration, Ankara
PLAXIS 2D v8.2, (2002) Finite element program, developed for the analysis of deformation, stability and groundwater flow in geotechnical engineering. Delft, Netherlands
Rocscience (2002) RocLab (v.1.0) Rock mass strength analysis using the generalized Hoek-Brown failure criterion
Sakurai S, Akutagawa S, Takeuchi K, Shinji M, Shimizu N (2003) Back analysis for tunnel engineering as a modern observational method. Tunn Undergr Sp Technol 18:185–196. https://doi.org/10.1016/S0886-7798(03)00026-9
Sonmez H, Ulusay R (2007) Engineering properties of rock masses, 2nd edn. vol 60. TMMOB Chamber of Geological Engineers of Turkey, Ankara, p. 292 (in Turkish)
Suchowerska AM, Merifield RS, Carter JP, Clausen J (2012) Prediction of underground cavity roof collapse using the Hoek-Brown failure criterion. Comput Geotech 44:93–103. https://doi.org/10.1016/j.compgeo.2012.03.014
Terlemez I, Şentürk K, Ateş Ş, Sümengen M, Oral A (1992) Geology of between Gaziantep region and Pazarcık-Sakçagöz-Kilis Elbeyli-Oğuzeli. MTA, Report: 9526, Ankara
Terlemez I, Şentürk K, Sümengen M, Oral A (1997) Turkey geological maps No: 45. Geological Studies Department, MTA, Ankara (in Turkish)
Tolun N, Pamir HN (1975) Explanatory text of the geological map of Turkey-Hatay. MTA, Ankara
Ulusay R, Aydan Ö, Geniş M, Tano H (2013) Stability assessment of Avanos Underground Congress Centre (Cappadocia, Turkey) in soft tuffs through an integrated scheme of rock engineering methods. Int J Rock Mech Rock Eng 46:1303–1321. https://doi.org/10.1007/s00603-012-0363-6
Waltam AC, Park HD (2002) Roads over lava tubes in Cheju Island, South Korea. Eng Geol 66:53–64. https://doi.org/10.1016/S0013-7952(02)00030-3
Wickham GE, Tiedemann HR, Skinner EH (1972) Support determination based on geologic predictions. In: North American rapid excavation tunneling conference, Chicago, pp 43–64
Acknowledgements
The authors thank to the Gaziantep Metropolitan Municipality for the kind help and support provided.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no competing interests.
Additional information
Communicated by Zeynal Abiddin Erguler.
Rights and permissions
About this article
Cite this article
Allı, S., Çanakçı, H. & Geniş, M. An integrated study on stability assessment of the Seyrantepe underground openings (Gaziantep, Turkey). Arab J Geosci 14, 2182 (2021). https://doi.org/10.1007/s12517-021-08544-8
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s12517-021-08544-8