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A New Method for Improving the RQD Determination of Rock Core in Borehole

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References

  • Araghi MS, Samani FB, Goudarzi MT (2006) A Proposal for the Modification of RQD (MRQD). In: Proceeding of 4th Asian rock mechanics symposium, rock mechanics in underground construction. ISRM International Symposium

  • ASTM (2008) Standard test method for determining rock quality designation (RQD) of rock core. Designation: D 6032–08

  • Barton N (1983) Application of Q-system, index tests to estimate shear strength and deformability of rock masses. In: Proceedings of international symposium on engineering geology underground construction, vol 1(II). Lisbon, pp 51–70

  • Barton N (2002) Some new Q value correlations to assist in site characterisation and tunnel design. Int J Rock Mech Min Sci 39:185–216

    Article  Google Scholar 

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

    Article  Google Scholar 

  • Bieniawski ZT (1973) Engineering classification of jointed rock masses. Trans South Afr Inst Civil Eng 16:335–344

    Google Scholar 

  • Bieniawski ZT (1978) Determining rock mass deformability experience from case histories. Int J Rock Mech Min Sci Geomech Abstr 15:237–248

    Article  Google Scholar 

  • Bieniawski ZT (1984) Rock mechanics design in mining and tunneling. A.A. Balkema, Rotterdam 272 pp

    Google Scholar 

  • Bieniawski ZT (1989) Engineering rock mass classification: a complete manual for engineers and geologists in mining, civil, and petroleum engineering. Wiley, New York, p 251

    Google Scholar 

  • Chen JP, Fan JH, Liu D (2005) Review and prospect on the application and research of RQD. Yantu Lixue Rock Soil Mech 26(SUPPL. 2):249–252 (in Chinese)

    Google Scholar 

  • Choi SY, Park HD (2004) Variation of rock quality designation (RQD) with scanline orientation and length: a case study in Korea. Int J Rock Mech Min Sci 41(2):207–221

    Article  Google Scholar 

  • Chun BS, Ryu WR, Sagong M, Do JN (2009) Indirect estimation of the rock deformation modulus based on polynomial and multiple regression analyses of the RMR system. Int J Rock Mech Min Sci 46:649–658

    Article  Google Scholar 

  • Deere DU (1963) Technical description of rock cores for engineering purposes. Rock Mech Eng Geol 1(1):18

    Google Scholar 

  • Deere DU (1989) Rock quality designation (RQD) after 20 years. US Army Corps of Engineers Contract Report GL-89-1. Waterways Experiment Station, Vicksburg, MS 67

  • Deere DU, Deere DW (1988) The RQD index in practice. In: Proceedings of symposium on rock class, Engineering Purposes. ASTM Special Technical Publications 984:91–101

  • Deere DU, Hendron AJ, Patton FD, Cording EJ (1967) Design of surface and near surface constructions in rock. In Fairhurst C (ed) In: Proceedings of 8th US symposium on rock mechanics. New York: AIME, Hack, R. 20, pp 237–302

  • Edelbro C (2003) Rock mass strength—a review. Technical Report, Luleå University of Technology, p 132

  • Franklin JA, Broch E, Walton G (1971) Logging the mechanical character of rock. Trans Inst Min Metall A80:A1–A9

    Google Scholar 

  • Hack R (2002) Keynote Lecture: An evaluation of slope stability classification. In: Dinis da Gama C, Ribeira e Sousa L (eds) Proceedings of ISRM EUROCK’2002, Portugal, Madeira, Funchal, 25–28 November 2002: 3–32. Lisboa: Sociedade Portuguesa de Geotecnia

  • Harrison JP (1999) Selection of the threshold value in RQD assessments. Int J Rock Mech Min Sci 36(5):673–685

    Article  Google Scholar 

  • Hoek E, Bray JW (1981) Rock slope engineering. revised, 3rd edn. The Institution of Mining and Metallurgy, London

    Google Scholar 

  • Hoek E, Brown ET (1980) Underground Excavations in Rock. Institution of Mining and Metallurgy, London

    Google Scholar 

  • Hoek E, Brown ET (1997) Practical estimates of rock mass strength. Int J Rock Mech Min Sci 34(8):1165–1186

    Article  Google Scholar 

  • Hudson JA, Priest SD (1983) Discontinuity frequency in rock masses. Int J Rock Mec Min Sci Geomech Abstr 20(2):73–89

    Article  Google Scholar 

  • Jiang XW, Wan L, Wang XS, Wu X, Zhang X (2009) Estimation of rock mass deformation modulus using variations in transmissivity and RQD with depth. Int J Rock Mech Min Sci 46:1370–1377

    Article  Google Scholar 

  • Li L, Ouellet S, Aubertin M (2009) An improved definition of rock quality designation, RQDc. In: Proceedings of the 3rd CANUS rock mechanics symposium, Toronto, May

  • Nicholson GA, Bieniawski ZT (1990) A nonlinear deformation modulus based on rock mass classification. Int J Min Geol Eng 8:181–202

    Article  Google Scholar 

  • Palmstrom A (1982) The volumetric joint count—a useful and simple measure of the degree of jointing. In: Proceedings of international congress of IAEG, New Delhi, 1982, pp V.221–V.228

  • Palmstrom A (1995) RMi—a rock mass characterization system for rock engineering purposes. Ph.D thesis, University of Oslo, Norway, p 409

  • Palmstrom A (1996) The weighted joint density method leads to improved characterization of jointing. International conference on recent advances in tunnelling technology, New Delhi, India, p 6

  • Palmstrom A (2001) Measurement and characterization of ck mass jointing. In-Situ characterization of rocks. Balkema Publishers, Oslo, pp 49–97

  • Palmstrom A (2005) Measurements of and correlations between block size and rock quality designation (RQD). Tunn Undergr Space Technol 20:362–377

    Article  Google Scholar 

  • Priest SD, Hudson JA (1976) Discontinuity spacings in rock. Int J Mech Min Sci Geomech Abstr 13:135–148

    Article  Google Scholar 

  • Sen Z (1990) Cumulative core index for rock quality evaluations. Int J Rock Mech Min Sci Geomech Abstr 27(2):87–94

    Article  Google Scholar 

  • Terzaghi RD (1965) Sources of error in joint surveys. Geotechnique 15:287–304

    Article  Google Scholar 

  • Zhang L, Einstein H (2004) Using RQD to estimate the deformation modulus of rock masses. Int J Rock Mech Min Sci 41(2):337–341

    Article  Google Scholar 

Download references

Acknowledgments

The author would like to thank Prof. G. Barla for his suggestions and cooperation in preparing the manuscript.

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Correspondence to Abdolazim Azimian.

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Azimian, A. A New Method for Improving the RQD Determination of Rock Core in Borehole. Rock Mech Rock Eng 49, 1559–1566 (2016). https://doi.org/10.1007/s00603-015-0789-8

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