Hazard Chart for Identification of Potential Landslide Due To the Presence of Residual Soil in the Himalayas

Ray, Arunava; Kumar, Rajesh; Bharati, Ashutosh Kumar; Rai, Rakesh; Singh, T. N.

doi:10.1007/s40098-019-00401-6

Cited by 14 publications

(11 citation statements)

References 46 publications

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“…These values are outlined in the resulting set of tables, alongside guidance for the practitioner on how to select the GSI category. For residual soils we determined L, I and H strength combinations of c ' and ϕ ' based on those outlined in Table 1 of Ray et al (2019).…”

Section: Nepal Specific Methodologymentioning

confidence: 99%

“…In Table 2, there is great variability in the inclinations outlined in the 'Very weak' category (e.g. residual soils) from the low to high strength combinations of c ' and ϕ ' due to the significant difference in the values of c ' and ϕ ' from Ray et al (2019) in each category. It can be noted that some of the cutting inclinations prescribed for high strength residual soils are close to vertical.…”

Section: Trendsmentioning

confidence: 99%

See 1 more Smart Citation

A methodology for road cutting design guidelines based on field observations

Robson

Agosti

Utili

et al. 2022

Engineering Geology

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Section: Nepal Specific Methodologymentioning

confidence: 99%

Section: Trendsmentioning

confidence: 99%

A methodology for road cutting design guidelines based on field observations

Robson

Agosti

Utili

et al. 2022

Engineering Geology

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“…Numerical modelling is one of the reliable tools for assessing the structural stability of dump slopes. The shear strength reduction (SSR) method is used in most scientific studies using finite element and finite difference models to determine the stability of dump slopes (Bharati et al, 2020;Farias and Naylor, 1998;Kumar Bharati et al, 2021;Matsui and San, 1992;Rai et al, 2012;Ray et al, 2020aRay et al, , 2020bZhigang et al, 2020;Zhu et al, 2016;Zou et al, 2018). SSR automatically finds critical slip surfaces and fulfils translational and rotational equilibrium conditions.…”

Section: Numerical Simulationmentioning

confidence: 99%

Numerical analysis of dump slope stability using material properties obtained by parallel gradation method

Rudra,

Gadepaka,

Rai

et al. 2024

Mining Technology: Transactions of the Institutions of Mining a

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The stability of the dump slope depends on many parameters, mainly the shear strength of the dump material. Obtaining strength parameters of dump material is vital in dump stability analysis. Dump material consisting of particles of varying sizes, as large as 1000 mm, is typical. It is challenging to obtain the material strength properties of such large particles in the laboratory. Extrapolation of the material strength properties of the modelled samples prepared by parallel gradation technique is used to calculate the dump material strength properties in this study. A closer agreement is found between the predicted and calculated values of the angle of internal friction. Numerical modelling has been carried out with the obtained material properties using RS2 V9.0, a finite element package, to analyse the stability of a dump slope. It is observed from the results that FOS (factor of safety) increase with an increase in dmax (maximum particle size), keeping the shape of the PSD (particle size distribution) curve constant. The paper develops a slope stability analysis methodology considering particle size's effect on slope stability. The proposed method can be used for accuracy and reliable results for slope stability analysis.

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“…Other than the methods mentioned earlier, there are some quick stability assessment methods such as stability chart, statistical methods, and classification method, which have been proposed by researchers to identify the stability of rock or dump slopes. The stability charts are helpful in quick estimation of the stability of slopes [19,20], and statistical methods have been used by Manouchehrian et al [11] and Erzin and Cetin [21] to calculate the FOS of the slopes. Many works have been done for the classification of rock slopes; slope mass rating (SMR) by Romana et al [22], which is based on rock mass rating (RMR); slope rock mass rating (SRMR) by Robertson [23]; Chinese slope mass rating (CSMR) by Chen [24].…”

Section: Introductionmentioning

confidence: 99%

A Stability Classification System for the Dragline Dump Slope

Bharati

Ray

Rai

et al. 2021

Mining, Metallurgy & Exploration

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Opencast mining method is one of the most productive mining methods available at present, which is generally associated with the removal and handling of a huge amount of overburden material. Hence it imposes a serious challenge of dump slope stability and that too, mainly in the case of internal dumps. The study is primarily focused on the stability of dragline dumps and the subsequent development of a rating system to classify the stability of dragline dump profiles. Initially, numerical simulation is executed through RS2 (Version 9.0) software, which is based on the finite element method. Thereafter, simulation results are used to perform the sensitivity analysis of various geometrical and strength parameters of the dump slope, and the two-factor interaction method is also incorporated into the analysis, this method included the dependency of closest parameters while calculating the sensitivity index, and thereafter, it is converted into the rating of each parameter. The strength parameter like the angle of friction and the geometrical parameter like slope angle of the bench between the coal-rib roof and dragline sitting level are assigned the highest rating value. Based on the overall rating of the dragline dump, the dump slopes are classified into various classes, viz., very safe, safe, vulnerable, unstable, and highly unstable. This classification proved to be handy in the quick estimation of the stability of the dragline dump and also gives an idea of designing optimum and safe dragline dump profiles. The developed classification chart has been validated by the previous research works and has found similar results.

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Hazard Chart for Identification of Potential Landslide Due To the Presence of Residual Soil in the Himalayas

Cited by 14 publications

References 46 publications

A methodology for road cutting design guidelines based on field observations

A methodology for road cutting design guidelines based on field observations

Numerical analysis of dump slope stability using material properties obtained by parallel gradation method

A Stability Classification System for the Dragline Dump Slope

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