The ability of
sloped soil or rock slopes to endure or undergo movement is referred to as
slope stability. In soil mechanics, geotechnical engineering, and engineering
geology, slope stability is studied. The goal of most analyses is to figure out
what causes slope failure or what circumstances might cause a slope to move,
resulting in a landslide. Through mitigation countermeasures, analyses are also
aimed at preventing the onset of movement, slowing it down, or stopping it. The
stability of slopes is affected by a variety of variables. Soil cohesion, soil
friction angle, existing loads, and water surface level are some of these
factors. These variables have an impact on the slip surface's shear resistance.
One of the oldest approaches for estimating the critical slip surface and
minimum factor of safety is the limit equilibrium method (LEM). The impacts of
soil material parameters such as soil specific weight (), cohesion (C), angle
of internal friction (), geometric slope parameters such as angle with the horizontal
(), and slope height (H) on factor of safety (Fs) are studied in this work. Fs
is examined in two scenarios: I a slope with dry conditions, and (ii) a
steady-state saturated condition with water level drawdown conditions.
Furthermore, a slip circle is examined. The SLOPE/W software, which is part of
the Geo-Studio software suite, is used to perform these calculations. The data
show that reducing the water table level and relieving the slope of hydrostatic
pressure reduces the safety factor. Only at near-vertical slopes did the plane
failure method give good results when compared to the circular failure method.
The results also reveal that each of the three forms of slip happened, however
only toe circle slips happened for >. For calculating the slope safety
factor, linear and nonlinear regression equations were used.
Author(S) Details
Farzin Salmasi
Department of Water
Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
John Abraham
University of St. Thomas, Minnesota, School of Engineering 2115 Summit
Avenue St. Paul, Minnesota 55105, USA.
Bahram Nourani
Department of Water Engineering, Faculty of Agriculture, University of
Tabriz, Tabriz, Iran.
View Book:- https://stm.bookpi.org/NPER-V9/article/view/6298
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