The evaluation of SMR classification method with special reference to results of the chalus road rock slopes analysis

Category Engineering Geology
Group GSI.IR
Location The 24 Symposium of Geosciences
Author M. Mahmoudpour, S. Karimnejad Tari ,M.J. Bolourchi , F. Ansari
Holding Date 18 August 2007


       The Slope Mass Rating (SMR) presented by Romana (1985, 2003) for determination of the rock mass class, the type of rock slope failure and support design. In this paper , the method of SMR used for classification of 37 rock slope with potential of rock fall in Chalus road (North of Iran).

      In this area, the probability of planar/ wedge failure is more than toppling failure. From many case of sandstone slopes in Kahar, Lalun and Duroud Formations, only the Duroud sandstone slopes need to complete support system  (Toe ditch , Systematic bolting, Spot shotcrete) due to the lowest SMR value (54-58). The Kahar sandstone slope have maximum stability and highest SMR value (Mean 70). Finally , all of the rock slopes need to complete support system (except one slope case in Kahar sandstone)

tags: QAZVIN