Rock mass assessment along the right bank of river Sutlej, Luhri, Himachal Pradesh, India

Abstract

The study involves the characterization of rock mass along the right bank of river Sutlej, Luhri, Himachal Pradesh. This road connects to several important locations and therefore blockage due to slope failure may cause several problems. Lack of proper geotechnical/geological investigations has led to cutting of the natural hill slopes with improper design. The subsequent road cut slope has made this zone highly vulnerable and a threat to local commuters. The concerned area has varying lithology which are highly jointed and exposed all along the road cuts. The unrestrained slope in this zone is prone to recurrent failures due to high precipitation and seismicity, eventually causing loss of life and property. Therefore, the study helps in understanding the behaviour and mode of failure of the cut slope through geometrical relationship between structural discontinuities and surface topography. Several important parameters were determined to quantify the region based on available and widely used rockmass characterization techniques to develop a proper understanding. This will ultimately help in designing appropriate remedial measures to such vulnerable zones that will prevent further slope failure and resulting damage.

Qualitative stability assessment of cut slopes along the National Highway-05 around Jhakri area, Himachal Pradesh, India

“…Kinematic analysis and rock mass characterisation have been performed to evaluate the rock mass condition. Similar works have been performed recently by Umrao et al (2015) and Singh et al (2015). Sarkar et al (2016) have also assessed the quality of some cut slopes along the same highway.…”

Hazard assessment of rainfall-induced landslides: a case study of San Vicente volcano in central El Salvador

“…In November 2009, following the passage of Hurricane Ida through the Caribbean, San Vicente volcano experienced more than 480 mm of rainfall on the upper slopes of the volcano in less than 2 days, with a peak rainfall intensity of over 80 mm/h (Schweig et al 2010). During the peak intensity of this storm, shallow landslides high on the western cone (see Fig.…”

Landslide hazard zonation mapping and cut slope stability analyses along Yercaud ghat road (Kuppanur–Yercaud) section, Tamil Nadu, India

“…Landslide hazard and susceptibility zonation mapping have been carried out by using various methods and techniques using different scales based on the requirement of the end user and the rationale of the investigation [26]. Different landslide hazards and susceptibility mapping methods described by Mantovani et al [39] include distribution analysis [16,22,78], qualitative analysis [17,41,43], statistical analysis [53,55,67], deterministic analysis [1,6,44,68], landslide frequency analysis [12,32,40,42], and distribution-free methods such as fuzzy logic [34,36,[52][53][54]69] and artificial neural network (ANN) models [13,15,51,80]. Many researchers adopted the Bureau of Indian Standard [BIS 14496 (Part 2): 1998] guidelines to prepare the landslide hazard zonation mapping [5].…”

“…In mountainous region, the inappropriate modification adopted on natural slope condition for the purpose of construction and widening of the transportation network affects the stability of the cut slope [68]. The understanding and analyses of geotechnical characteristics of soil and rock give the possibility of occurrence of landslide in a specific site.…”