Abstract
The Himalayan range, being a complex terrain, is highly prone to slope instability in many parts because of the natural conditions and human interference. In the present study, road cut slope stability assessment has been carried out along Chamba-Bharmour Section (Chamba District, Himachal Pradesh) along Chakki (Pathankot, Punjab) - Bharmour (Chamba, Himachal Pradesh). The cut slopes with the potential of failures have been identified taking into consideration the geological and geotechnical complexities in the selected zone. Rock mass characterization methodologies have been used for the assessment of slope instability. The varying stability classes of the rock slopes have been calculated using rock mass rating (RMR) and modified slope mass rating (SMR) methods. The kinematic analysis approach has been utilized for the identification of different failure modes in heavily jointed, fractured and structurally controlled rock masses. Fourteen potentially unstable slopes were selected to assess their criticality by RMR and modified SMR approaches and their stability classes were identified.
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