Rafik Hebib

4 Questions 13 Answers 0 Followers

Questions related from Rafik Hebib

The Q-system classification is it accurate in the flysch grounds as for the RMR-GSI classifications?

Hello, Is it possible to compare classification results of GSI, RMR, and Q-system for flysch grounds? Or, it's better to work just with GSI classification? Thanks. Rafik.

16 December 2017 8,906 14 View

Prediction of squeezing ground behaviour?

Hello all. The identification of the squeezing potential of the ground is mainly based on the rock UCS, and on the height of overburden. Is there a direct relationship between the deformation...

29 November 2017 9,049 4 View

Discontinuities rating in Geomechanics Classification of Rock Masses?

Hello all. According to the AFTES guide, schisitosity is a type of discontinuity. However, this schisitosity may not be an interruption of the continuity of the rock matrix but rather a...

29 November 2017 3,230 3 View

Formulas for GSI estimation?

are the GSI estimation formulas from (RMR) and (Q-system) still valid? (GSI = RMRbasic-5) and (GSI = 9log [(RQD / Jn) (Jr / Ja)] + 44) are there new formulas.

11 November 2017 3,877 5 View