Stability Analysis of Rock Slopes along Gangadarshan, Pauri, Garhwal, Uttarakhand

Abstract

The rock mass rating (RMR) and slope mass rating (SMR) has been carried out to classify the slope in terms of slope instability. To understand the RMR and SMR various geostructural, geomorphologic and hydrological parameters of the slopes were measured and analyzed. The present RMR and SMR study is an outcome of extensive field study along a stretch of about 10 km on road leading from Srinagar to Pauriarea along Alaknanda valley. The technique followed incorporates the relation between discontinuities and slope along with rock mass rating (RMR) and slope mass rating (SMR). The analysis of the 32 studied slopes shows that in the Gangadarshan area out of six rock slope facets, two falls in class II (stable) and four in class IV (unstable). It is significant to note that the slope facets coming under class IV are comprised of active landslide portions. While the slopes under class II show minor failure or old landslide debris.

Stability appraisal of road cut slopes along a strategic transportation route in the Himalayas, Uttarakhand, India

“…The road cut slopes in the region need to be assessed for the probability of failure and accordingly implementation of remedial measures is a prerequisite to attaining better safety and economics along the highway. During the preliminary and feasibility stages of the project, rock mass classification methods provide a reasonable overview of stability [9]. The present study attempted to characterize vulnerable road cut slopes along NH-58 from Kaliyasaur to Rudraprayag by using a rock mass classification tool.…”