scholarly journals Probabilistic analysis of slope stability towards the slip by the kinematic method

2011 ◽  
Vol 21 ◽  
pp. 93-100 ◽  
Author(s):  
F. Zeroual Née dadouche ◽  
Belabed lazhar ◽  
A. Zennir
Keyword(s):  
Slope Stability ◽  
Probabilistic Analysis ◽  
Kinematic Method

Probabilistic Analysis of Slope Stability towards the Slip by the Kinematic Method

2011 ◽  
Vol 324 ◽  
pp. 400-403
Author(s):  
Fatima Zeroual ◽  
Lazhar Belabed
Keyword(s):  
Slope Stability ◽  
Probabilistic Analysis ◽  
Limit Analysis ◽  
Mechanical Model ◽  
Safety Factors ◽  
Conventional Model ◽  
Deep Surface ◽  
Kinematic Method ◽  
Probability Concept ◽  
The Stability

The check of the stability of banks towards the slidings always crosses by the adoption of empirical global safety factors result, generally, of the study of the break along the deep surface of sliding. The mechanical model suited to this mode of break is subject to controversy. In this article we propose a mechanical model of calculation for the break along the deep surface of sliding based on the kinematic method of the stiff solids (limit analysis). A comparison of this model proposed with the conventional model was led according to the statico-probability concept of security. The reliability of the system is expressed by means of the indication of reliability β.

scholarly journals Probabilistic Analysis of Cut-Slope Stability for Tropical Red Clay of Depok, West Java as an Effect of Rainfall Duration and Intensity

2018 ◽  
Vol 147 ◽  
pp. 07004 ◽  
Author(s):  
Fathiyah Hakim Sagitaningrum ◽  
Widjojo Adi Prakoso ◽  
Erly Bahsan
Keyword(s):  
Slope Stability ◽  
Probabilistic Analysis ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Probability Of Failure ◽  
Red Clay ◽  
Run Off ◽  
Surface And Pore Water ◽  
Cut Slopes ◽  
Clay Slopes

Landslide in Indonesia, specifically in Java island, occurs during rainy seasons. In Java island, it is known that the tropical red clay has the ability to stand at steep angles, while in stability analysis due to rainfall, practitioners only consider the rise of groundwater table. Previous studies states that one of the factor affecting factor of safety (FS) for tropical red clay slopes is the formation of saturated zones due to matric suction. This research studies the effect of rainfall intensity and duration to FS of cut-slopes as parametric study with probabilistic analysis for different height of 10m, 20m, and 30m also slope angles of 27°, 45°, 55°, and 70°. Rainfall parameter are taken from FTUI rainfall station for advanced pattern and three-days duration of rain. Analysis of seepage uses SEEP/W and slope stability uses SLOPE/W. It is known that the significant increase of probability of failure due to the three-days rainfall is achieved at the 10m height and 70°-angled slope. Increase of the probability of failure is mainly due to rainfall infiltration which saturates the surface and pore water pressure increase until certain time where infiltration stops and turn into surface run-off.

scholarly journals Análisis de Estabilidad Probabilístico del Talud de la Cantera Espinal – Juliaca

2018 ◽  
pp. 39-43
Keyword(s):  
Numerical Methods ◽  
Slope Stability ◽  
Safety Factor ◽  
Stress Reduction ◽  
Failure Probability ◽  
Probabilistic Analysis ◽  
Reduction Factor ◽  
Rock Slope Stability ◽  
Rocky Slope ◽  
Static Conditions

Análisis de Estabilidad Probabilístico del Talud de la Cantera Espinal – Juliaca Probabilistic Analysis of Slope Stability Espinal Quarry - Juliaca Fredy Alonso Valeriano Nina Facultad de Ingeniería de Minas, Universidad Nacional del Altiplano – Puno – Perú DOI: https://doi.org/10.33017/RevECIPeru2014.0006/ Resumen El presente estudio fue realizado en la cantera Espinal de la ciudad de Juliaca en el departamento de Puno, consiste en determinar los valores de seguridad que rigen la estabilidad o inestabilidad en un talud rocoso; factor de seguridad (FS) o reducción de la resistencia al corte (SRF) y la probabilidad de falla (PF), para lo cual se han utilizado los métodos generales de análisis de estabilidad de taludes en roca; Análisis cinemático y  métodos numéricos. Se realizó análisis probabilísticos por el método de estimación de puntos para mayor confiabilidad de los resultados de análisis con métodos numéricos. Teniendo como resultados en el análisis cinemático una probabilidad de plano de deslizamiento por volteo directo de 44.41%, los valores de seguridad promedio dado por los análisis probabilísticos con métodos numéricos en SRF son; para condiciones estáticas FS o SRF 2.27 y PF 0.0% y para condiciones seudoestáticas FS o SRF 1.21 y PF 2.98%. Por lo cual concluimos que el talud se encuentra estable en condiciones estáticas y seudoestáticas, tomando en consideración el resultado del análisis cinemático realizado se han observado grietas de tracción en la cresta del talud que fallaran por volteo directo dependiendo a la intensidad de los factores desencadenantes. Descriptores: Macizo rocosos, análisis probabilístico, factor de seguridad (FS), reducción de la resistencia al corte (SRF), probabilidad de falla (PF). Abstract This study was carried out in the Espinal highway of Juliaca city in the state of Puno, which consists in to determinate the safety values that controls the stability or instability of a rocky slope; safety factor (FS) or shear strength reduction (SRF) and failure probability (PF). Due to this, general methods of rock slope stability were used; cinematic analysis and numerical methods. Probabilistic analyses were conducted by the method of points’ estimation for more reliability in the results of numerical methods. Having in the cinematic analysis results a probability of glide plane by direct toppling of 44.41%, the values of average safety obtained by the probabilistic analysis with numerical methods in SFR are; for static conditions FS or SRF 2.27 and PF 0.0% and for pseudostatical conditions a FS or SRF 1.21 and PF 2.98%. Due to this, we concluded that the slope is stable in static and pseudostatic conditions, considering the results of cinematic analysis, were observed tension cracks on the top of the slope which failed by direct toppling depending of the intensity of trigger factors. Keywords: Rock Mass, probabilistic analysis, safety factor (FS), stress reduction factor (SRF), failure probability (PF).

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