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Practical Investigations on Use of Weighted Joint Density to Decrease the Limitations of RQD Measurements

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References

  • ASTM D6032-08 (2008) Standard test method for determining rock quality designation (RQD) of rock core. ASTM International, West Conshohocken, PA

  • Barton N (1990) Scale effects or sampling bias? In: Proc. Int. Workshop Scale Effects in Rock Masses, Balkema Publ., Rotterdam, pp 31–55

  • Barton N (1995) The influence of joint properties in modeling jointed rock masses; keynote lecture. In: Fuji T (ed) Proceeding of the 8th ISRM Congress, Tokyo. Balkema Publ, Rotterdam, pp 1023–1032

    Google Scholar 

  • Bieniawski ZT (1989) Engineering rock mass classifications. Wiley, New York

    Google Scholar 

  • BJVC (2009) Bakhtiary Dam and HEPP, engineering geology and rock mechanics report; Report No. 4673/4049 Rev. 1

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

    Article  Google Scholar 

  • Deere DU (1963) Technical description of rock cores for engineering purposes. Rock mechanics and engineering geology, Vienna: Springer. 1(1):18

    Google Scholar 

  • Goodman RE (1993) Engineering geology. Rock in engineering construction. Wiley, New York 385 p

    Google Scholar 

  • Li L, Ouellet S, Aubertin M (2009) An improved definition of rock quality designation, RQDc. In: Diederichs M, Grasselli G (eds) ROCKENG09 Proceedings of the 3rd CANUS Rock Mechanics Symposium, Toronto, Paper No. 3934, pp 1–10

  • Milne D, Hadjigeorgiou J, Pakalnis R (1998) Rock mass characterization for underground hard rock mines. Tunneling Undergr Space Technol 13(4):383–391

    Article  Google Scholar 

  • Motiei H (1993) Geology of Iran, stratigraphy of Zagros. Geological Survey of Iran- Tehran, Iran (in Persian)

    Google Scholar 

  • Palmstrom A (1974) Characterization of jointing density and the quality of rock masses (in Norwegian). Internal report, Berdal, p 26

    Google Scholar 

  • Palmstrom A (1982) The volumetric joint count—a useful and simple measure of the degree of jointing. IVth Int. Congress IAEG, New Delhi, pp 221–228

    Google Scholar 

  • Palmstrom A (1985) Application of the volumetric joint count as a measure of rock mass jointing. Proc. Int. Symp. on Fundamentals of Rock Joints, Bjorkliden, pp 103–110

    Google Scholar 

  • Palmstrom A (1986) A general practical method for identification of rock masses to be applied in evaluation of rock mass stability conditions and TBM boring progress. In: Proc. Conf. on Fjellsprengingsteknikk, Bergmekanikk. Geoteknikk, Oslo, Norway, pp 31.1–31.31

  • Palmstrom A (1995) RMi—a rock mass characterization system for rock engineering purposes. PhD thesis, University of Oslo, Department of Geology

  • Palmstrom A (1996) The weighted joint density method leads to improved characterization of jointing. In: International Conference on Recent Advances in Tunneling Technology, New Delhi, India

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

    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 

  • Sen Z, Eissa EA (1992) Rock quality charts for long—normally distributed block size. Int J Rock Mech Min Sci Geomech Abstr Pergamon 29(1):1–12

    Article  Google Scholar 

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

    Article  Google Scholar 

  • Zhang L, Einstein HH (2004) Using RQD to estimate the deformation modulus of rock masses. Int J Rock Mech Min Sci 4:337–341

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Tectonics and Engineering Geology, School of Geology, College of Science, University of Tehran, Enghelab St., Tehran, Iran

    Mohammad Haftani

  2. Department of Exploration Seismology, Institute of Geophysics, University of Tehran, Tehran, Iran

    Hossein A. Chehreh

  3. Sadd Tunnel Pars Consulting Engineers Company, Tehran, Iran

    Mohammad Haftani, Hossein A. Chehreh, Abolfazl Mehinrad & Kheirollah Binazadeh

Authors
  1. Mohammad Haftani
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  2. Hossein A. Chehreh
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  3. Abolfazl Mehinrad
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  4. Kheirollah Binazadeh
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Correspondence to Mohammad Haftani.

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Haftani, M., Chehreh, H.A., Mehinrad, A. et al. Practical Investigations on Use of Weighted Joint Density to Decrease the Limitations of RQD Measurements. Rock Mech Rock Eng 49, 1551–1558 (2016). https://doi.org/10.1007/s00603-015-0788-9

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  • DOI: https://doi.org/10.1007/s00603-015-0788-9

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