Probabilistic and sensitivity analyses of effective geotechnical parameters on rock slope stability: a case study of an urban area in northeast Iran

Vatanpour, Nahid; Ghafoori, Mohammad; Talouki, Hossein Hedayati

doi:10.1007/s11069-013-0982-6

Cited by 17 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whether the material parameters used are reasonable significantly affects the numerical calculation results for rock structures . It is necessary to ensure that the value of each parameter involved in the calculation is close to the actual value .…”

Section: Discussionmentioning

confidence: 99%

“…Whether the material parameters used are reasonable significantly affects the numerical calculation results for rock structures. 39 It is necessary to ensure that the value of each parameter involved in the calculation is close to the actual value. 40,41 Currently, numerical inversion methods based on field measurements for obtaining complex intermediate to high-dimensional constitutive parameters are rapidly being developed.…”

Section: Parameter Sensitivitymentioning

confidence: 99%

See 1 more Smart Citation

Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress

Tan

Zhou

et al. 2019

Energy Science & Engineering

View full text Add to dashboard Cite

Layered rocks exhibit notable transverse isotropy and have a significant impact on the deformation and failure characteristics of underground structures. To a large extent, the mechanical properties of layered rocks are related to the structure and stress state of their bedding planes. To obtain an in‐depth understanding of the deformation and yield characteristics of layered rocks, a mechanical model for layered rocks incorporating planes of weakness and volumetric stress is proposed by improving the strain‐hardening/softening ubiquitous‐joint model based on continuum mechanics methods. In this mechanical model, elastoplastic equations for the matrix and bedding planes of layered rocks are established. The evolution of the mechanical parameters of the matrix and bedding planes of layered rocks with the internal variable is determined. In addition, the sensitivity of the model parameters is analyzed, and a method for determining the parameters is provided to reduce the complexity in obtaining these parameters. The numerical calculation results for the laboratory tests on layered sandstone specimens under various stress levels agree relatively well with the test results, thereby validating the effectiveness of the improved model. The methods and results of this study provide a significant reference for the analysis of the deformation and failure of other layered rocks.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Parameter Sensitivitymentioning

confidence: 99%

Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress

Tan

Zhou

et al. 2019

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

“…Kinematic analysis, using stereographic projection is a widely used method to evaluate structurally controlled landslides, usually in rock massifs and rock slopes (e.g. Gokceoglu et al 2000;Brückl 2001;Brideau et al 2006;Gratchev et al 2013;Vatanpour et al 2014;Siddique et al 2015;Smith 2015;Park et al 2016), but also in deeply weathered slopes (e.g., Shuib et al 2006). The method basically consists in plotting attitudes of the discontinuities and the slope on a stereonet to evaluate stability, considering also the friction angle (Park et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Assessment of landslide occurrences in Serra do Mar mountain range using kinematic analyses

Cerri

Reis

Gramani³

et al. 2018

Environ Earth Sci

View full text Add to dashboard Cite

Due to its meteorological, geological and geomorphological settings, Brazilian's Atlantic coast have suffered severe landslide phenomena, particularly along the cost of São Paulo, Rio de Janeiro, and Santa Catarina states. Studies have shown that these processes are complex and triggered by several factors. However, within the study area, many landslide locations are placed on gneiss migmatitic terrain with pronounced geological discontinuities. The objective of this paper is to assess landslide occurrences in Serra do Mar (Caraguatatuba, SP) and investigate, by means of kinematic analysis, how they correlate with foliation and fractures present on the rocks. Kinematic analysis is used to investigate which discontinuities are more favorable to landslides occurrence and their relationship with slope directions. Structural information and kinematic data models are used to evaluate cause-effect relationship of landslide processes. Results show that dip slopes, with NE-SW direction, have greatest potential for the occurrence of planar landslides. On the other hand, anti-dip and cross-dip slopes have a greater potential to develop wedge landslides. Rock weathering and fluid flux along foliation planes can intensify mass movement. Such effect is also seen in residual soil, since they are able to preserve relict structures of the rock. This study contributes to a better understanding of how geological structures, preserved in tropical residual soils, influence shallow landslides.

show abstract

“…Slide is one of the most common types of natural hazards on slopes, which might lead to considerable casualties and economic loss [ 1 , 2 ]. To guarantee the stability of a homogenous slope, the circular arc method is traditionally used for stability analysis.…”

Section: Introductionmentioning

confidence: 99%

Numerical Computation of Homogeneous Slope Stability

Xiao

Ke-min

Ding

et al. 2015

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

To simplify the computational process of homogeneous slope stability, improve computational accuracy, and find multiple potential slip surfaces of a complex geometric slope, this study utilized the limit equilibrium method to derive expression equations of overall and partial factors of safety. This study transformed the solution of the minimum factor of safety (FOS) to solving of a constrained nonlinear programming problem and applied an exhaustive method (EM) and particle swarm optimization algorithm (PSO) to this problem. In simple slope examples, the computational results using an EM and PSO were close to those obtained using other methods. Compared to the EM, the PSO had a small computation error and a significantly shorter computation time. As a result, the PSO could precisely calculate the slope FOS with high efficiency. The example of the multistage slope analysis indicated that this slope had two potential slip surfaces. The factors of safety were 1.1182 and 1.1560, respectively. The differences between these and the minimum FOS (1.0759) were small, but the positions of the slip surfaces were completely different than the critical slip surface (CSS).

show abstract

Probabilistic and sensitivity analyses of effective geotechnical parameters on rock slope stability: a case study of an urban area in northeast Iran

Cited by 17 publications

References 21 publications

Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress

Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress

Assessment of landslide occurrences in Serra do Mar mountain range using kinematic analyses

Numerical Computation of Homogeneous Slope Stability

Contact Info

Product

Resources

About