Landslide caused by rainfall are easily produced when excavating conduct in sandstone-covered mudstone strata. The expansion project of the Heishan Village to Jixi section Dan-A Highway is used as an example study formation and damage mechanism rainfall-induced landslide cutting slope. Finite element numerical analyze stability slope using Geo-Studio ANSYS software for three different rainfall-...

River floods, dammed lake flood discharge, reservoir seawater recession, etc. all cause the water level in front of a slope to drop, which changes original steady-state seepage field soil, leading harmful instability. To study this phenomenon, numerical model was established through theoretical analysis combined with coupling Seep/W and Slope/W modules GeoStudio finite element software, verifie...

This work introduces slope seeking, a new idea for non-model based adaptive control. It involves driving the output of a plant to a value corresponding to a commanded slope of its reference-to-output map. To achieve this objective, we introduce a slope reference input into a sinusoidal perturbation-based extremum seeking scheme; derive a stability test for single parameter slope seeking, and th...

The intersection lines between discontinuity surfaces and their intersection points on the visible surfaces of any engineering structure may be the instability indicators. This paper describes a new approach to modelling the intersecting lines and points that would provide the first evaluation of any instability in an engineering structure characterized by the failure modes. In this work, the i...

in order to present a quantitative indicator for the onset of instability, in this paper, the critical points of a stratified gravitational flow on a slope are found and analyzed. these points are obtained by means of the solution of the two-dimensional navier-stokes equations via the standard arakawa-c finite-difference method. results show that in the marginal richardson numbers, the critical...

The stability of marine ice sheets grounded on beds that slope upwards in the overall direction of flow is investigated numerically in two horizontal dimensions. We give examples of stable grounding lines on such retrograde slopes illustrating that marine ice sheets are not unconditionally unstable in two horizontal dimensions. Retrograde bed slopes at the grounding lines of marine ice sheets, ...

In order to present a quantitative indicator for the onset of instability, in this paper, the critical points of a stratified gravitational flow on a slope are found and analyzed. These points are obtained by means of the solution of the two-dimensional Navier-Stokes equations via the standard Arakawa-C finite-difference method. Results show that in the marginal Richardson numbers, the critical...