工程岩体分类的简要回顾

1 引言

工程岩体分类是是岩石工程设计的一个重要步骤，这个outline简要回顾工程岩体分类的发展历史。

2 工程岩体分类的进化

最早的岩石工程分类是由Terzaghi在1946年提出，这是一个定性的岩体分类， 后来逐渐发展出其它更先进的定量的分类方法，如下表所示。这些分类方法大都是为地下采矿和隧道工程的支护设计发展起来的，目前在工程界广为应用的岩体分类方法主要有：RQD，RMR, MRMR, Q-System和GSI.   

3 不同分类方法的回归关系

Dr. Hoek 建立了RMR, Q和GSI之间的关系用来表示岩体质量指标与岩体强度及变形模量之间的定量关系，如下图所示。

岩体强度

变形模量

4 参考文献

[1] D.H. Laubscher and J. Jakubec, The MRMR rock mass classification for jointed rock masses, Underground Mining Methods: Engineering Fundamentals and International Case Studies, W.A. Hustrulid and R.L. Bullock, Eds., Society of Mining Engineers, New York, 2001, 474–481.

[2] N.R. Barton, Some new Q-value correlations to assist in site characterization and tunnel design. International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, Vol. 39, No. 2, 2002, 185–216.

[3] Bieniawski, Z. T. (1989). Engineering rock mass classifications. p. 251. John Wiley & Sons, New York, Wiley.

[4] Deere, D.U. 1989. Rock quality designation (RQD) after 20 years. U.S. Army Corps Engrs Contract Report GL-89-1. Vicksburg, MS: Waterways Experimental Station.

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

[6] Laubscher, D.H. 1977. Geomechanics classification of jointed rock masses - mining applications. Trans. Instn Min. Metall. 86, A1-8

[7] Terzaghi, K. 1946. Rock defects and loads on tunnel supports. In Rock tunneling with steel supports, (eds R. V. Proctor and T. L. White) 1, 17-99. Youngstown, OH: Commercial Shearing and Stamping Company.

[8] Wickham, G.E., Tiedemann, H.R. and Skinner, E.H. 1972. Support determination based on geologic predictions. In Proc. North American rapid excav. tunneling conf., Chicago, (eds K.S. Lane and L.A. Garfield), 43-64. New York: Soc. Min. Engrs, Am. Inst. Min. Metall. Petrolm Engrs.

[9] Pantelidis, L. (2009). "Rock slope stability assessment through rock mass classification systems." International Journal of Rock Mechanics and Mining Sciences 46: 315-325.

[10] Singh, B. and R. K. Goel (1999). Rock mass classification : a practical approach in civil engineering. Amsterdam ; New York, Elsevier.

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