Research Status and Prospects of the Relationship between GSI and RMR based on the HoekBrown Criterion
Abstract
engineering. Investigating the quantitative relationship between the Geological Strength Index (GSI) within the Hoek-Brown criterion and the
widely used Rock Mass Rating (RMR) is of great significance for engineering construction. This paper systematically reviews the current research status of the relationship between GSI and RMR based on the Hoek-Brown criterion, with a specific focus on analyzing empirical correlations established by various scholars across different engineering contexts, including tunnels, slopes, and borehole cores. Through a comprehensive comparative analysis, it is found that although engineering conditions and evaluation methods vary among studies, RMR and GSI
generally exhibit a positive linear correlation. However, significant differences exist in the slopes and intercepts of these empirical equations.
The results indicate that no universal, strict conversion formula exists between RMR and GSI. Consequently, in future engineering practice,
the selection and modification of conversion relationships should be based on specific geological conditions.
Keywords
Full Text:
PDFReferences
[1] Zhang Q, Huang X, Zhu H, et al. Quantitative assessments of the correlations between rock mass rating (RMR) and geological strength
index (GSI)[J]. Tunnelling and Underground Space Technology, 2019, 83:73-81.
[2] Ali W, Mohammad N, Tahir M. Rock mass characterization for diversion tunnels at Diamer Basha dam, Pakistana design
perspective[J]. Int. J. Sci. Eng. Technol, 2014, 3(10): 1292-1296.
[3] Siddique T, Khan E A. Stability appraisal of road cut slopes along a strategic transportation route in the Himalayas, Uttarakhand,
India[J]. Sn Applied Sciences, 2019, 1(5).
[4] Somodi G, Bar N, Kovcs L, et al. Study of rock mass rating (RMR) and Geological Strength index (GSI) correlations in granite, siltstone, sandstone and quartzite rock masses[J]. Applied Sciences, 2021, 11(8): 3351.
[5] Wijaya B J, Warmada I W, Indrawan I G B. Correlation between GSI, RMR, and Q systems of rock masses at the construction site of
spillway tunnel at Meninting Dam[J]. AIP Conference Proceedings, 2023, 2629(1):9.
[6] HOEK E, CARRANZA-TORRES C, CORKUM B. Hoek-Brown failure criterion2002 edition[C]// Proceedings of NARMS-TAC
2002, Minging Innovation and Technology. Toronto: [s. n.], 2002: 267273.
[7] Hoek E, Brown E T. The HoekBrown failure criterion and GSI2018 edition[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2019, 11(3): 445-463.
[8] Bieniawski Z T. Engineering Rock Mass Classifications[M]. Wiley, 1989.
DOI: http://dx.doi.org/10.70711/frim.v4i3.8727
Refbacks
- There are currently no refbacks.
