Rock slope stability assessment using finite element based modelling – examples from the Indian Himalayas

Pain, Anindya; Kanungo, Debi Prasanna; Sarkar, Sutanu

doi:10.1080/17486025.2014.883465

Cited by 49 publications

(10 citation statements)

References 23 publications

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“…The finite element method (FEM) is a numerical method mostly utilized in the failure behavior of continuous rock masses under effective in-situ stress conditions. Due to the capabilities of FEM, many studies in recent years were conducted using this method in the modeling of rock mechanics related problems 2008;Fu and Liao 2010;Azami et al 2012;Pain et al 2014;Alemdag et al 2019;Sari 2019). Due to the simplicity of its coding programs, less computation power and time, this method was employed to perform the numerical analysis in this study.…”

Section: Finite Element Analysismentioning

confidence: 99%

Evaluation of rockfalls at a historical settlement area in the Ihlara valley (Cappadocia, Turkey) using different methods

Sarı

2021

Preprint

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Rockfalls are one of the most dangerous natural events in hilly terrains. This study presents the results of an investigation program to analyze the possibility of a rockfall from a slope to nearby residential buildings in a historical settlement area. Various rockfall analysis techniques were implemented in the study for this purpose. The kinematical analysis revealed the potential of different structurally controlled modes of failure in the slope, especially wedge type and block toppling were the most significant ones. Finite element analysis suggested a stable slope considering the safety factor of 2.19 for the existing geological and geotechnical conditions of the studied slope case. A possible rockfall trajectory was determined and located as an input in the 2D rockfall program based on the field measurements. Different shapes and sizes of blocks were used in the rigid body model for a more realistic numerical simulation of rockfall events. According to the 2D model results, there was no danger of rockfall for the investigated downslope buildings. However, to stay on a safe side, a suitable control measure with a specified dimension was proposed to manage rockfalls in the study area.

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Section: Finite Element Analysismentioning

confidence: 99%

Evaluation of rockfalls at a historical settlement area in the Ihlara valley (Cappadocia, Turkey) using different methods

Sarı

2021

Preprint

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“…The analysis is performed based on geometry of slope, material properties and angular relationships between discontinuities and slope surfaces [23,40]. The kinematic analysis of all three road cut slopes were determined using DIPS 6.0~ Rocscience Inc. [33] accordingly as Markland [27]. The rock mass rating (RMR) or Geomechanical classification was proposed by Bieniawski in (1979).…”

Section: Kinematics and Rock Mass Characteristicsmentioning

confidence: 99%

Empirical and finite element based stability analysis of highway cut slopes in Uttarakhand Himalayan terrain, India

et al. 2020

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The present paper deals with different empirical methods and finite element method of slope stability analysis along National Highway (NH)-7, in Uttarakhand, India. The highway is only path in the hilly terrain of Lesser Himalayan for the public transport and have strategic importance due to militaries possession routes. This route is also significant due to having many holistic places, connecting to this. There was numerous landslides happened along the Highway in past due to various natural and anthropogenic activities. Hence, keeping an eye to the socio-economic development of the distant area, slope stability analysis is very crucial along the road cut sections. To identify the vulnerable locations and to collect the geotechnical data, the field investigation was carried out between Shivpuri to Byasi along NH-7 in Garhwal, Uttarakhand. Then geotechnical data was intended followed by rock mass characteristic, kinematic analysis and Qslope stability. Additionally, to review the stability results, numerical simulation (finite element method) was employed and slope mass behavior and failure mechanism of cut slopes were also evaluated. The rock mass characteristic and kinematic analysis illustrate normal and good variety of rock mass mainly wedge mode with flexural toppling of failure. The slope mass rating, continuous slope mass rating and also Qslope stability analysis showed, road cut slopes are critically stable and unstable. The results of different empirical methods shows a decent correlation between them. Further the numerical simulation analysis also evaluates that two cut slopes are unstable and other one is critically stable. This substantial empirical and numerical analysis of cut slopes provides a collective approach to stable and develop the holistic road corridor in Himalayan terrain.

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“…In addition, a number of monitoring experiments have been conducted to investigate the stability of rock slopes (Yang et al 2001;Shu et al 2005a, b;Lin et al 2014). Due to the rapid development of numerical modeling technologies, numerical simulation is an efficient alternative method with which to study the stability of a slope (Griffiths and Marquez 2007;Tan and Sarma 2008;Bui et al 2011;Pain et al 2014), and has attracted worldwide attention. Stead et al (2006), Song et al (2010), Böhme et al (2013), He et al (2013) and Wong and Wu (2014) analyzed the stability and deformation of rock slopes using numerical modeling methods.…”

Section: Introductionmentioning

confidence: 99%

Layout and length optimization of anchor cables for reinforcing rock wedges

Wang

et al. 2015

Bull Eng Geol Environ

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This paper presents an optimization study on the layout and length of anchor cables for stabilizing rock wedges from the perspective of their three-dimensional geological characteristics. On the basis of the generalized geometry model for rock wedges, the expression of driving force of slope at the arbitrary longitudinal section can be deduced by employing the hyperbolic model between driving force and scale factor of rock wedges. Due to the remarkable parabolic characteristics of the driving force expression of rock wedges, a corresponding non-uniform layout principle of anchor cables was proposed, with closer layout in the central part and sparse layout near the side boundaries. The rational length of anchor cables was quantified on the basis of specification and the three-dimensional spatial characteristics of rock wedges. Furthermore, the upper limit spacing of anchor cables was determined by the spacing threshold caused by the parabolic distributed driving force. The spacing distribution of the optimized anchor cables was verified as a parabolic distribution according to a case study on the Shuige rock wedge in Lishui City, China. Compared with the conventional uniform spacing and length design scheme, the adjusted optimal non-uniform scheme can reduce the anchor cables by 16.9 % and 18.9 % in number and in total length, respectively.

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Rock slope stability assessment using finite element based modelling – examples from the Indian Himalayas

Cited by 49 publications

References 23 publications

Evaluation of rockfalls at a historical settlement area in the Ihlara valley (Cappadocia, Turkey) using different methods

Evaluation of rockfalls at a historical settlement area in the Ihlara valley (Cappadocia, Turkey) using different methods

Empirical and finite element based stability analysis of highway cut slopes in Uttarakhand Himalayan terrain, India

Layout and length optimization of anchor cables for reinforcing rock wedges

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