This example models the problem stated in "A three-dimensional slope stability problem in clay" by Vincenzo Silvestri.
This example is used to illustrate the analysis of a three-dimensional slope stability model using the Multi-Directional Slip Analysis feature of SVSLOPE, i.e., a slip surface direction that does not follow the x-axis. A range of slip surface directions is analyzed and the effect on the factor of safety for the slope is noted.
The analysis methods used in this example are:
This example models the problem stated in "A three-dimensional slope stability problem in clay" by Vincenzo Silvestri.
CLARA_W example 2 - Composite ellipsoid / Wedge Surface. Use discontinuity material for the wedge.
The analysis methods used in this study are:
This example illustrates a single trial slip surface.
The analysis methods used in this study are:
In this example, the slope is comprised of three layers. It represents a comparison study of various slope stability methods strictly based on the example on "Comparison of Slope Stability methods of analysis" by Fredlund and Krahn. The 3D model is created based on the 2D model.
This example demonstrates the use of general sliding surface. In the original CLARA/W, the model used a Hoek-Brown strength model for the shale bedrock layer material. since there is a different implementation of the Hoek-Brown model in CLARA/W and SVSLOPE, the bedrock material strength model is changed to a Mohr-Coulomb in both the CLARA/W and SVSLOPE 3D software packages for the convenience of comparison.
This problem models the upstream portion of an earth dam which was built with a sloping clay core surrounded by granular material. The water surface is higher than the ground surface in the front of the toe, so toe submergence will be considered. This model was originally presented in the Clara/W verification manual. It should be noted that the unit weights in this example are close to buoyant values but are reproduced in the current example for the sake of consistency with the original model as presented in the Clara/W documentation.
This model is based on Hungr (1989), which is again based on Leshchinski (1985).
This model uses a 3D wedge sliding surface on Kettleman Hills Landfill. The Wedge is defined by discontinuity material.
This model comes from Fig. 10 in the paper entitled "Three-Dimensional Asymmetrical Slope Stabiiity Analysis Extension of Bishop's, Janbu's, and Morgenstern-Price's Techniques" by Y.M.Cheng and C.J. Yip. Journal of geotechnical and geoenvironmental engineering, 133(12), 2007. Cheng, etc. got a FOS = 0.722 with the Simpified Janbu's Method.
This model is developed from Fig. 11 in the paper entitled "Three-Dimensional Asymmetrical Slope Stabiiity Analysis Extension of Bishop's, Janbu's, and Morgenstern-Price's Techniques" by Y.M.Cheng and C.J. Yip. Journal of geotechnical and geoenvironmental engineering, 133(12), 2007. Cheng, etc. got a FOS = 0.280 with Simpified Janbu's and Morgenstern Method, and the sliding direction at 63.4 degrees CW from axis X.
This model comes from Fig. 7(a) in the paper entitled "New Method for 3D and Asymmetrical Slope stability Analysis" by C.C.Huang and C.C. Tsai. Journal of geotechnical and geoenvironmental engineering, 126(10), 2000. Huang, etc. found a FOS = 1.766 with the Simpified Bishop Method.
This model comes from Fig. 8(a) in the paper entitled "New Method for 3D and Asymmetrical Slope stability Analysis" by C.C.Huang and C.C. Tsai. Journal of geotechnical and geoenvironmental engineering, 126(10), 2000. Huang, etc. got a FOS = 1.235 with the Simpified Bishop Method.
This model presents multiple piezometric surfaces, each layer associated with a different piezometric surface.
This model uses the multi-planar moving wedge sliding surface. It represents a waste pile failure controlled by a weak interface between the waste material and its foundation. The weak surface is defined by discontinuity material. All other three wedge planes forming the sliding surface have the properties of the waste material.
This model uses the multi-planar wedge planar sliding surface. It represents a waste pile failure controlled by a weak interface between the waste material and its foundation. The weak surface is defined by discontinuity material. All other three wedge planes forming the sliding surface have the properties of the waste material.
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