Slope Mass Rating (SMR) charts for onsite classification of rock slopes

2021 ◽  
Author(s):  
Raj Kiran Dhiman ◽  
Mahesh Thakur
Keyword(s):  
Rock Slopes ◽  
Slope Mass Rating

A discussion on the adjustment parameters of the Slope Mass Rating (SMR) system for rock slopes

2016 ◽  
Vol 206 ◽  
pp. 42-49 ◽  
Author(s):  
Jun Zheng ◽  
Yu Zhao ◽  
Qing Lü ◽  
Jianhui Deng ◽  
Xiaohua Pan ◽  
...  
Keyword(s):  
Rock Slopes ◽  
Slope Mass Rating

scholarly journals Slope mass rating of rock slopes of the Malekhu River, central Nepal Lesser Himalaya

2014 ◽  
Vol 47 (1) ◽  
pp. 36-46
Author(s):  
Naresh Kazi Tamrakar ◽  
Jaya Laxmi Singh
Keyword(s):  
Rock Mass ◽  
Slope Stability ◽  
Failure Mode ◽  
Rock Mass Rating ◽  
Rock Slopes ◽  
Plane Failure ◽  
Central Nepal ◽  
Slope Mass Rating ◽  
Unstable Slope ◽  
Rock Mass Slopes

The Malekhu River is one of the major tributaries of the Trishuli Ganga River fl owing from the south in Malekhu region, central Nepal. Riverbank slope stability is a topic of concern as rock mass condition and slope stability of riverbank slopes are important parameters for riverbank erodibility. Fourteen sites in the Malekhu River were selected for rock mass rating (RMR) and then slope mass rating (SMR) by using a graphic method. The potentially vulnerable sites were identifi ed after conducting field study in different slopes. The results indicate that there occur modes of failures ranging from stable (good rock mass) to partially stable (normal rock mass) in all the study sites. The unstable (bad rock mass) and completely unstable (very bad rock mass) slopes are, however, distributed only in some slopes. The unstable slope of plane failure mode is Ka1, whereas the completely unstable slopes of plane failure mode are Rb2, Ml1 Slope 1 and Ml2. The unstable slope of toppling failure mode is Ml2. When wedge failure mode is considered, the slopes at Ti1 and Ka1 are unstable while the slopes at Kh1, Ka1, Ml1 Slope 1 are completely unstable. The rock slopes with unstable to completely unstable states are considered bad (SMR Class IV: 21–40) to very bad (SMR Class V: 0–20) rock mass with fair to poor rock mass rating, respectively. These bad to very bad rock mass slopes are vulnerable to slope movements and river erosion, and they require mitigative measures.

scholarly journals Classification of cut slopes in weathered meta-sedimentary bedrocks

2016 ◽  
Vol 20 (2) ◽  
pp. 1 ◽  
Author(s):  
Johnbosco Ikenna Nkpadobi ◽  
John Kuna Raj ◽  
Tham Fatt Ng
Keyword(s):  
Rock Mass ◽  
Sedimentary Rocks ◽  
Rock Mass Rating ◽  
Rock Quality Designation ◽  
Rock Quality ◽  
Slope Mass Rating ◽  
Field Investigations ◽  
Kinematic Analyses ◽  
Cut Slopes

In order of abundance, the meta-sedimentary rocks along Pos Selim Highway in Perak state Malaysia comprise quartz mica schist, graphitic schist, and quartzite layers. Field investigations revealed that these meta-sedimentary rocks have gradational weathering profile based on differences particularly in textures, hardness, lateral changes in colour, and consistency of material extension. The results from uniaxial compressive strength tests confirmed field observations whereby failure occurred mostly on outcrops having joints almost perpendicular to foliation. From the kinematic analyses, the investigated cut slopes are unstable with possibilities of wedge and planar failures. Application of rock mass classification schemes including Rock Quality Designation (RQD) and Rock Mass Rating (RMR) yielded almost similar poor to good quality ranges for each investigated rock mass. While Slope Mass Rating (SMR) classified the cut slopes from stable to unstable slopes, this study categorized them into one actively unstable, four marginally stable and five stable slopes.  ResumenEn orden de abundancia, las rocas metasedimentarias a lo largo de la carretera Pos Selim, en el estado Perak de Malasia, se componen de esquistos de cuarzo mica, esquistos de grafito y capas de cuarzo. Las investigaciones de campo revelan que estas rocas metasedimentarias tienen perfiles de meteorización progresiva basados en diferencias particulares como textura, dureza, cambios laterales de color y consistencia del material de extensión. Los resultados de los ensayos uniaxiales de esfuerzo de compresión confirmaron las observaciones de campo por las cuales se estableció que las fallas ocurrieron mayormente en los afloramientos con coyunturas perpendiculares hacia la foliación. De los análisis cinemáticos se desprende que los taludes de corte investigados son inestables con posibilidades de fallas planas y de cuña. La utilización de esquemas de clasificación rocosa como el índice RQD (del inglés Rock Quality Designation) y la clasificación geomecánica de Bienawski o RMR (del inglés Rock Mass Rating) evidencia rangos similares de baja y buena calidad para cada masa rocosa estudiada. Mientras que el índice de taludes SMR (del inglés Slope Mass Rating) clasificó los taludes de corte de estables a inestables, este estudio los categorizó de uno activamente inestable, cuatro marginalmente estables y cinco estables.

scholarly journals Ambient vibration classification of unstable rock slopes: A systematic approach

2019 ◽  
Vol 249 ◽  
pp. 198-217 ◽  
Author(s):  
Ulrike Kleinbrod ◽  
Jan Burjánek ◽  
Donat Fäh
Keyword(s):  
Systematic Approach ◽  
Ambient Vibration ◽  
Rock Slopes ◽  
Unstable Rock

scholarly journals Characterization of rock slopes through slope mass rating using 3D point clouds

2016 ◽  
Vol 84 ◽  
pp. 165-176 ◽  
Author(s):  
Adrián J. Riquelme ◽  
Roberto Tomás ◽  
Antonio Abellán
Keyword(s):  
Point Clouds ◽  
Rock Slopes ◽  
3D Point Clouds ◽  
Slope Mass Rating

Use of Satellite and Ground Based InSAR in Hazard Classification of Unstable Rock Slopes

2014 ◽  
pp. 389-392 ◽  
Author(s):  
John F. Dehls ◽  
Tom Rune Lauknes ◽  
Reginald L. Hermanns ◽  
Halvor Bunkholt ◽  
Tom Grydeland ◽  
...  
Keyword(s):  
Rock Slopes ◽  
Hazard Classification ◽  
Unstable Rock

scholarly journals Classification of natural and engineered rock slopes using UAV photogrammetry for assessing stability

2021 ◽  
Vol 833 (1) ◽  
pp. 012046
Author(s):  
N Bar ◽  
L Borgatti ◽  
D Donati ◽  
M Francioni ◽  
R Salvini ◽  
...  
Keyword(s):  
Rock Slopes
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