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Correlation of Soft Rock Properties

  • Milton Assis Kanji
  • Marcio Leão
Chapter

Abstract

Soft rocks are a critical type of natural material, due to their low strength, and sometimes problematic behavior in engineering works, since they may crumble, swallow, slake, contract, and so on. It is not uncommon do adopt too much conservative parameters for these types of rocks, due to the insufficient knowledge of their properties. Improving their knowledge may lead to adopting more realistic parameters with advantages to the economy of the projects. For the while, there is not a characteristic property that could be taken as an index property from which several other ones could be related to assess the characteristic behavior of a soft rock.

The main aim of this chapter is to present the diverse correlations between different physical and mechanical properties of intact rocks, including soft rocks, to allow the assessment of other properties once one or more of them is determined. It is proposed that absorption could be an interesting index property for soft rocks.

Keywords

Soft rocks Mechanical properties Physical properties Laboratory testing Intact rock 

References

  1. Anagnostopoulos A, Frank R, Kalteziotis N, Schlosser F (1993) Editors, Geotechnical Engineering of Hard Soils—Soft Rocks: Proceedings, Intern. Symp, vol 1–3. ISSMFE, AthensGoogle Scholar
  2. Bosio JJ, Kanji MA (1998) Soft Rocks of the Rio de la Plata—South America, Proc. 2nd. Int. Symp, vol 1. Hard Rocks and Soft Rocks, Naples, pp 55–61Google Scholar
  3. Campos JO (1988) 1° Report, Committee on Geotechnical Studies of Sedimentary Rocks, Coord., Technical Article 15, Assoc. Bras. Geol. Eng., S. Paulo, pp 160Google Scholar
  4. Deere DU (1968) Chapter 1: Geological considerations. In: Stagg KG, Zienkiewicz J (eds) Rock mechanics in engineering practice. Wiley, New York, pp 1–20Google Scholar
  5. Deere DU (1975) Applied Rock Mechanics of Weak Materials—General Report, 5th Panamerican Congr. Soil Mech. And Found. Engineering, Buenos AiresGoogle Scholar
  6. Deere DU, Vardé O (1986) Engineering Geological Problems Related to Foundations and Excavations in Weak Rock, 5th International Congress IAEG, Buenos AiresGoogle Scholar
  7. Dobereiner L (1984) Engineering geology of weak sandstones. PhD Thesis. Imperial College of Science and Technology. University of LondonGoogle Scholar
  8. Elhakim AF (2015) The use of point load test for Dubai weak calcareous sandstones. J Rock Mech Geotech Eng 7(4):452–457CrossRefGoogle Scholar
  9. Floss MF, Rezende IM, Ferreira G, Henrique P, Thomé A, Consoli NC (2016) Evaluation of simple compression strength and artificially cemented agate residue traction. Ciência Engenharia 25:1–6CrossRefGoogle Scholar
  10. Galván Liévano VR (1999) Simulation of the geotechnical properties of the weak arenaceous rocks by means of artificial materials, Doctoral Thesis, Dept. Structural & Geotechnical. Engineering, Polytechnical School, University of São Paulo, São PauloGoogle Scholar
  11. Galván Lievano V, Kanji MA (2012) Simulation of arenaceous weak rocks by means of cemented sands. In: Proceedings of the 12th International Congress of International Society for Rock Mechanics, vol 2011. CRC Press, Beijing, pp 751–752Google Scholar
  12. Hamrol AA (1961) Quantitative Classification of Weathering and Weatherability of Rocks. In: International Conference on Soil Mechanics and Foundation Engineering, 5pGoogle Scholar
  13. Hsu SC, Nelson P (1993) Characterization of cretaceous clay-shales in North America. Geot. Eng. of Hard Soils- Soft Rocks. Anagnostopoulos et al (eds. Balkema), pp 139–146Google Scholar
  14. ISRM – International Society of Rock Mechanics (2015) The ISRM suggested methods for rock characterization, testing and monitoring: 2007–2014, 5 ed., Ulusay R (ed)
  15. Jeremias FT (1997) Influence of the geological aspects on the geotechnical properties of silty-clayey rocks, Thesis for the degree of Specialist. Lisboa, Laboratório Nacional de Engenharia Civil (in Portuguese)Google Scholar
  16. Kanji MA (2012) Rocas Blandas—Problemas y Soluciones en obras de Ingeniería (Weak rocks—problems and solutions in engineering works), 2nd Int. Symp. Excavations in Rock, SCG, Costa Rica, 21pp. (in Spanish)Google Scholar
  17. Kanji MA (2014a) Critical Issues in Soft Rock. J Rock Mech Geotech Eng 6(3):186–195CrossRefGoogle Scholar
  18. Kanji MA (2014b) Engineering Works Affected by Soft Rocks, Rock Mechanics for Natural Resources and Infrastructure. In: SBMR 2014—ISRM Int. Symp., Goiania, BrazilGoogle Scholar
  19. Kanji MA, Galván Lievano VR (1998) Correlation of Properties of Soft Rocks, Proc. 2nd. Int. Symp, vol 1. Hard Soils and Soft Rocks, Naples, pp 239–244Google Scholar
  20. Leão MF (2011) Geological-geomechanical modeling of San Juan dam. Dissertation, Federal University of Rio de Janeiro, Depart. of Geology, Rio de Janeiro, RJ, Brazil. (in Portuguese)Google Scholar
  21. Leão MF (2015) Analysis strain stress of a concrete dam in residual soil predominantly anisotropic. Dissertation, University of State of Rio de Janeiro, Department of Civil Engineering, Rio de Janeiro, RJ, Brazil. (in Portuguese)Google Scholar
  22. Leão MF, Polivanov H, Barroso EV, Marques EAG, Vargas EA Jr (2017) Weathering of metapelites from the Quadrilátero Ferrífero mineral province, southeastern Brazil. Bull. Eng. Geology and the Environ. Springer, New York, p 15.  https://doi.org/10.1007/s10064-017-1036-1CrossRefGoogle Scholar
  23. Rocha M (1975) Some problems related to the rock mechanics of low strength natural materials. In: Proceedings of the 5th Pan-American Conference on Soil Mechanics and Foundation Engineering, Buenos Aires. (in Portuguese)Google Scholar
  24. Romana M, Vasarhelyi B (2007) A discussion on the decrease of unconfined compressive strength between saturated and dry rock samples. In: 11th International Society for Rock Mechanics and Rock Engineering, Lisbon, PortugalGoogle Scholar
  25. Terzaghi K, Peck R (1967) Soil mechanics in engineering practice. Wiley, New YorkGoogle Scholar
  26. Wunder E, Meirelles MC (2014) Soft Sandstone Physical and Geomechanical Characterization. In: In: SBMR 2014—ISRM Int. Symp., Goiania, BrazilGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Milton Assis Kanji
    • 1
  • Marcio Leão
    • 2
  1. 1.Polytechnical SchoolUniversity of São PauloSão PauloBrazil
  2. 2.Federal University of ViçosaViçosaBrazil

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