scholarly journals Application of Slope Mass Rating System In Slope Stability Class Evaluation

2019 ◽  
Vol 9 (1) ◽  
pp. 3645-3649
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Rock Slope ◽  
Probability Of Failure ◽  
Rating System ◽  
Rock Slope Stability ◽  
Cut Slope ◽  
Stability Class ◽  
Slope Mass Rating ◽  
The Stability

The rock slope stability analysis is a challenging task in geotechnical engineering. The metasedimentary cut slope at Putrajaya-Cyberjaya Link was assessed using Slope Mass Rating (SMR) system in this study. The results of SMR calculation obtained in this study is 23.3. The results shows that, the slope stability class obtained is IV and the cut slope of the study area is in bad condition. The stability is known to be unstable and the probability of failure is 0.6 or 60%.

scholarly journals Probability Methods for Stability Design of Open Pit Rock Slopes: An Overview

Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 319
Author(s):  
Musah Abdulai ◽  
Mostafa Sharifzadeh
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Probabilistic Analysis ◽  
Rock Slope ◽  
Limit Equilibrium ◽  
Probability Of Failure ◽  
Slope Stability Analysis ◽  
Rock Slope Stability ◽  
Open Pit ◽  
Rational Approach

The rock slope stability analysis can be performed using deterministic and probabilistic approaches. The deterministic analysis based on the safety concept factor uses fixed representative values for each input parameter involved without considering the variability and uncertainty of the rock mass properties. Probabilistic analysis with the calculation of probability of failure instead of the factor of safety against failure is emerging in practice. Such analyses offer a more rational approach to quantify risk by incorporating uncertainty in the input variables and evaluating the probability of the failure of a system. In rock slope engineering, uncertainty and variability involve a large scatter of geo-structural data and varied geomechanical test results. There has been extensive reliability analysis of rock slope stability in the literature, and different methods of reliability are being employed for assessment of the probability of failure and the reliability of a slope. Probabilistic approaches include Monte Carlo simulation (MCS), the point estimate method (PEM), the response surface method (RSM), first- and second-order reliability methods (FORMs and SORMs), and the first-order second-moment method (FOSM). Although these methods may be complicated, they provide a more complete definition of risk. Probabilistic slope stability analysis is an option in most commercial software; however, the use of this method is not common in practice. This paper provides an overview of the literature on some of the main probabilistic reliability-based methods available for the design of the rock slope in open pit mining. To demonstrate its applicability, the paper investigates the stability of a rock slope in an open pit mine in the Goldfields region, Western Australia. Two different approaches were adopted: deterministic stability analysis using two-dimensional limit equilibrium and finite element shear strength reduction methods using SLIDE and RS2 software, respectively, and probabilistic analysis by applying the MCS and RSM methods in the limit equilibrium method. In this example, the slope stability analysis was performed using the Spencer method with Cuckoo search optimization to locate the critical slip surface. The results obtained were compared and commented on.

Weak foliated rock slope stability analysis with ultra-close-range terrestrial digital photogrammetry

2017 ◽  
Vol 78 (2) ◽  
pp. 1157-1171 ◽  
Author(s):  
Pedro Alameda-Hernández ◽  
Rachid El Hamdouni ◽  
Clemente Irigaray ◽  
José Chacón
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Rock Slope ◽  
Slope Stability Analysis ◽  
Rock Slope Stability ◽  
Digital Photogrammetry ◽  
Close Range

scholarly journals Discontinuous rock slope stability analysis under blocky structural sliding by fuzzy key-block analysis method

Heliyon ◽  
2020 ◽  
Vol 6 (5) ◽  
pp. e03907 ◽  
Author(s):  
Mohammad Azarafza ◽  
Haluk Akgün ◽  
Mohammad-Reza Feizi-Derakhshi ◽  
Mehdi Azarafza ◽  
Jafar Rahnamarad ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Rock Slope ◽  
Slope Stability Analysis ◽  
Rock Slope Stability ◽  
Analysis Method ◽  
Key Block ◽  
Discontinuous Rock

HIGH ROCK SLOPE STABILITY ANALYSIS USING THE ENRICHED MESHLESS SHEPARD AND LEAST SQUARES METHOD

2011 ◽  
Vol 08 (02) ◽  
pp. 209-228 ◽  
Author(s):  
HEHUA ZHU ◽  
XIAOYING ZHUANG ◽  
YONGCHANG CAI ◽  
GUOWEI MA
Keyword(s):  
Rock Mass ◽  
Stability Analysis ◽  
Slope Stability ◽  
Least Squares ◽  
Rock Slope ◽  
Least Squares Method ◽  
Meshless Methods ◽  
Slope Stability Analysis ◽  
Rock Slope Stability ◽  
High Rock Slope

The meshless methods are particularly suitable for modeling problems with discontinuities such as joints in rock mass. The meshless Shepard and least squares (MSLS) method is a newly developed meshless method, which overcomes some limitations with other meshless methods. In the present paper, the MSLS method is extended for modeling jointed rock mass and the joint is modeled as discontinuity governing the near-field stress. A substantial high rock slope by the dam shoulder of Jinping Hydropower Station is analyzed by the developed method. Safety factors are evaluated based on the stress results along potential slip surfaces and compared with the conventional slice methods. The results demonstrate the feasibility of using the MSLS method in rock slope stability analysis and also reveal some interesting differences from the conventional slice methods. Some findings and outstanding issues demonstrated in this study are discussed in the end, which can be the topics for future development.

ROCK SLOPE STABILITY ANALYSIS FOR THE SEVEN CATARACTS VISTA ROAD CUT OF THE MT. LEMMON HIGHWAY, TUCSON, ARIZONA

1999 ◽  
Vol 1999 (1) ◽  
pp. 393-407
Author(s):  
Pinnaduwa H. S. W. Kulatilake ◽  
Jeongi-Gi Um ◽  
Greg Crum ◽  
Graham Irvine
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Rock Slope ◽  
Slope Stability Analysis ◽  
Rock Slope Stability

APPLICATION OF BLOCK THEORY MODELING ON SPATIAL BLOCK TOPOLOGICAL IDENTIFICATION TO ROCK SLOPE STABILITY ANALYSIS

2013 ◽  
Vol 11 (01) ◽  
pp. 1350044 ◽  
Author(s):  
SHUHONG WANG ◽  
PENGPENG NI
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Rock Slope ◽  
Limit Equilibrium ◽  
Slope Stability Analysis ◽  
Rock Slope Stability ◽  
Rock Slopes ◽  
Block Theory ◽  
Joint Plane ◽  
Identification Techniques

Rock slopes stability has been one of the fundamental issues facing geotechnical engineering researchers. Due to the pre-existing joints, the intactness of the rock is weakened. The mechanical characteristics are changed correspondingly along with joint-induced stress redistribution within the rock mass if the sliding limit at the joint or part of it is exceeded. In this study, spatial block topological identification techniques are applied to distinguish all blocks cut by 3D finite random or fixed discontinuities. Based on the available photographic information of rock slopes, the sliding forces and the corresponding factor of safety are evaluated through limit equilibrium conditions by the classic block theory. The rock slope stability analysis software, GeoSMA-3D (Geotechnical Structure and Model Analysis), satisfying the requirements of spatial block modeling, joint plane simulation, key block identification and analysis and sliding process display, was developed. The application of such a software on the analysis of a rock slope, which is located near the inlet of Daiyuling No. 1 tunnel on the Zhuanghe–Gaizhou highway networks, was performed. The assessed results were compared with the monitored data to validate the effectiveness of such software.

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