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Stability assessment of shallow limestone caves through an empirical approach: application of the stability graph method to the Castañar Cave study site (Spain)

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Abstract

The Castañar Cave (central W Spain) was formed within mixed carbonate-siliciclastic rocks of the Neoproterozoic age. The host rock is finely bedded and presents a complex network of folds and fractures, with a prevalent N150E strike. This structure controlled the development and the maze-pattern of the cave, as well as its main water routes. The cave was formed more than 350,000 years ago as a result of the dissolution of interbedded carbonates along with weathering of siliciclastic beds, which also promoted the collapse of the overlying host rock. Currently, it is a vadose cave, but its initial development could have been phreatic. The cave is well known for the outstanding quality of its aragonite speleothems. At present, the cave only receives restricted scientific and educational visits, and therefore it is advisable to perform a preliminary stability assessment through the application of internationally accepted engineering criteria for the evaluation of underground space stability. The aim of this study is to apply engineering rock mass classifications and an empirical approach for tunneling design to the preliminary assessment of karstic caves. The stability of some of the rooms was assessed by the stability graph method, widely used to analyze polyhedral mining rooms, but there are no existing references for its application to karstic caves. The stability of karstic caves can be assessed similarly to man-made excavations, but due to its geological heritage, recognition must always be non destructive. Geotechnical observation points are useful tools fulfill this requisite, and have been applied to the Castañar Cave. The Q index and the stability graph method have both proven to be useful, but due to the polyhedral shape of the cave, the Stability Graph technique has presented more realistic results.

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References

  • Alonso-Zarza AM, Martín-Pérez A, Martín-García R, Gil-Peña I, Meléndez A, Martínez-Flores E, Hellstrom J, Muñoz-Barco P (2011) Structural and host rock control son the distribution, morphology and mineralogy of speleothems in the Castañar Cave (Spain). Geol Mag 148(2):211–225

    Article  Google Scholar 

  • Barton N (1976) Unsupported underground openings. Rock Mechanics Discussion Meeting, Befo, Swedish Rock Mechanics Research Foundation, Stockholm, pp 61–94

  • Barton N, Bieniwaski ZT (2008) RMR and Q: setting records straight. Tunn Tunn Int 26–29

  • Barton N, Grimstad E (2004) The Q system following thirty years of development and application in tunnelling projects. In: Eurorock 2004 & 53rd geomechanics Colloquium Schubert (ed.)

  • Barton N, Lien R, Lunde J (1974) Engineering classification of rock masses for the design of tunnel support. Rock Mech 6(4):189–236

    Article  Google Scholar 

  • Bieniawski ZT (1973) Engineering classification of jointed rock masses. Trans S Afr Int Civ Eng 15:335–344

    Google Scholar 

  • Bieniawski ZT (1974) Geomechanics classification of rock masses and its application in tunnelling. In: Advances in rock mechanics, Proceedings of 3rd International Congress on Rock Mechanics, Denver, Colorado, USA, pp 27–32

  • Bieniawski ZT (1976) Rock mass classification in rock engineering. In: Proceedings symposium on exploration for rock engineering, Johannesburg, pp 97–107

  • Bieniawski ZT (1979) The geomechanics classification in rock engineering applications. In: Reprinted from proceedings of the 4th congress of the international society for rock mechanics, vol 5. ISRM, Montreux, Balkema, Boston, pp 55–95

  • Bieniawski ZT (2011) Errores en la aplicacion de las clasificaciones geomecánicas y su corrección. Conferencia magistral Adif—Geocontrol. http://www.geocontrol.es/publicaciones/EB-189_adif_errores_en_la_aplicacion_bieniawski.pdf. Accessed 19 Nov 2015

  • Diez-Balda MA, García Casquero JL, Monteserín V, Nozal F, Pardo MV, Robles R (1990) Cizallamientos subverticales posteriores a la segunda fase de deformación hercínica al Sur de Salamanca. Rev Soc Geol España 3:117–125

    Google Scholar 

  • Dips (2008) User’s manual. Rocscience Inc., Toronto

    Google Scholar 

  • Examine2D (2009) User’s manual. Rocscience Inc., Toronto

    Google Scholar 

  • Hatzor YH, Wainshtein I, Mazor DB (2010) Stability of shallow karstic caverns in blocy rock masses. Int J Rock Mech Min Sci 47:1289–1303

    Article  Google Scholar 

  • Hoek E, Kaiser PK, Bawden WF (1995) Support of underground excavations in hard rock. A.A Balkema, Rotterdam, p 215

    Google Scholar 

  • Hoek E, Carranza-Torres CT, Corkum B (2002) Hoek—Brown failure criterion—2002 edition. In: Bawden HRW, Curran J, Telesnicki M (eds) Proceedings of the North American Rock Mechanics Society (NARMS-TAC 2002). Mining Innovation and Technology, Toronto, pp 267–273

    Google Scholar 

  • IGME (1988) Estudio de viabilidad de apertura y explotacion turıstica de la cueva de Castanar de Ibor (Caceres), Madrid. Intern Rep (in Spanish)

  • Lollino P, Martimucci V, Parise M (2013) Geological survey and numerical modeling of the potential failure mechanisms of underground caves. Geosystem Eng 16(1):100–112

    Article  Google Scholar 

  • Martin CD, Kaiser PK, McCreath DR (1999) Hoek-Brown parameters for predicting the depth of brittle failure around tunnels. Can Geotech J 36(1):136–151

    Article  Google Scholar 

  • Mathews KE, Hoek E, Wyllie DC, Stewart SBV (1981) Prediction of stable excavations for mining at depth below 1000 metres in hard rock. CANMET Report DSS Serial No. OSQ80-00081, DSS File No. 17SQ.23440-0-9020. Dept. Energy, Mines and Resources, Ottawa

  • Mawdesley CA (2002) Predicting rock mass cavability in block caving mines. Ph.D. thesis, Dissertation, University of Queensland

  • NGI (2013) Using the Q-system, Rock mass classification and support design, NGI, Oslo, Norway, p 57

  • Nickson SD (1992) Cable support guidelines for underground hard rock mine operations. M.A.Sc. thesis, Dissertation. The University of British Columbia

  • Palmer AN (2007) Cave geology. Cave books, Dayton, OH

    Google Scholar 

  • Potvin Y (1988) Empirical open stope design in Canada. Ph.D. thesis. Dissertation, The University of British Columbia

  • Potvin Y (2014) The modified stability graph method; more than 30 years later. Short course and keynote lecture, Lima, ISRM sponsored symposium

  • Potvin Y, Dight P, Wesseloo J (2012) Some pitfalls and misuse of rock mass classification systems for mine design. J South Afr Inst Min Metall 112(8):01–06

    Google Scholar 

  • Waltham T (2002) The engineering classification of karst with respect of the role and influence of caves. Int J Speleol 31:19–35

    Article  Google Scholar 

  • Waltham AC, Fookes PG (2003) Engineering classification of karst ground conditions. Q J Eng Geol Hydrogeol 36:101–118

    Article  Google Scholar 

  • Waltham T, Lu Z (2007) Natural and anthropogenic rock collapse over open caves. Geol Soc Lond Spec Publ 279:13–21

    Article  Google Scholar 

  • Waltham T, Bell F, Culshaw M (2005) Sinkholes and Subsidence: karst and cavernous rocks in engineering and construction. Springer, Berlin

    Google Scholar 

Download references

Acknowledgments

The authors wish to thank the Prometeo Project of the Superior Education, Science, Technology and Innovation Secretary of the Republic of Ecuador for the support. The geotechnical analysis and interpretation of results were carried out by the Earth Sciences Faculty of the Polytechnic Superior School of the Guayaquil Coast, in Ecuador. Thanks are extended to the Rocscience software firm of Toronto, Canada, for providing the academic version of the softwares used: DipsV5, Rocdata and Examine2Dv8. This work is included in the project: “Environmental and Geological Study of the Natural Monument: Cueva de Castañar” funded by FEADER, through a contract between the Government of Extremadura (Spain) and CSIC. We also give thanks for the contribution to Project CGL2014-54818.

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Authors and Affiliations

  1. Facultad de Ingeniería en Ciencias de la Tierra, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo Km 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador

    Luis Jordá-Bordehore & Paola Leonor Romero-Crespo

  2. Laboratório de Palinofácies e Fácies Orgânicas (LAFO), Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21941-916, Brazil

    Rebeca Martín-García

  3. Departamento de Petrología y Geoquímica, Facultad de Geología, Universidad Complutense de Madrid, IGEO-CSIC, 28040, Madrid, Spain

    Ana M. Alonso-Zarza

  4. Rudnik Ciencias de la Tierra, 28720, Madrid, Bustarviejo, Spain

    Rafael Jordá-Bordehore

Authors
  1. Luis Jordá-Bordehore
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  2. Rebeca Martín-García
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  3. Ana M. Alonso-Zarza
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  4. Rafael Jordá-Bordehore
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  5. Paola Leonor Romero-Crespo
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Correspondence to Luis Jordá-Bordehore.

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Jordá-Bordehore, L., Martín-García, R., Alonso-Zarza, A.M. et al. Stability assessment of shallow limestone caves through an empirical approach: application of the stability graph method to the Castañar Cave study site (Spain). Bull Eng Geol Environ 75, 1469–1483 (2016). https://doi.org/10.1007/s10064-015-0836-4

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  • DOI: https://doi.org/10.1007/s10064-015-0836-4

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