To assess the stability of slopes under shortterm often during construction and longterm conditions. This engineer manual em provides guidance for analyzing the static stability of slopes of earth and rockfill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. Slope stability analysis using conventional methods and fem the calculations of the safety factor were made using the conventional methods of bishop, fellenius and bell. Equilibrium methods of slope stability analysis all involve assumptions because the number of equilibrium equations available is smaller than the number of unknowns involved. For example, duncan 1996 reported that the difference between various methods was less than 6%. Pdf slope stability analysis through variational slope. Scheme of the assignment solution to solve this problem, we will use the geo5 slope stability program. Slide2 most comprehensive 2d slope stability software. In this method, the potential failure surface is assumed. Through data analysis of slope stability that occurring in piyungan, yogyakarta with the manual method fellenius and plaxis program v8. Analysis of road embankment slope stability chunyuan liu, ulysse seho f. The accuracy of equilibrium methods of slope stability. Published under licence by iop publishing ltd journal of physics. Dec 08, 2012 this technique includes the key elements of all the other methods available in the slope stability analysis in geostudio 2007.
There are several general limit equilibrium gle methods have been developed for slope stability analyses purposes. Using the fellenius method of slices, determine the factor of safety, in terms. Hounsa hebei university of technology, tianjin, china abstract the stability of earthworks cuttings, embankments, dikes and natural slopes is a problem that is of concern to geotechnicians, both practitioners and researchers. Evaluation of minimum factor of safety in slope stability. Oct 03, 20 jonathan baluarte huanchi alejandro pinto vargas. Spread sheet solution for slope stability analysis using fellenius and simplified bishop methods construction case gw f slice. Slope stability analysis using finite element techniques. The slip surface is considered as circular bishop, fellenius petterson, janbu, morgensternprice or spencer methods or polygonal sarma, janbu, morgensternprice or spencer methods. The slope stability calculated for bishop, janbu, spencer and gle is summarized in the graph below. It is essential that the engineering geologist be intimately familiar with all of these methods because they provide ways of determining, relatively unambiguously, whether a. One effort to get the accurate calculation of slope stability in a short time, which is by making the.
Pdf slope stability analysis methods danial salajegheh. Stability analysis of slopes with surcharge by lem and fem international journal of advanced structures and geotechnical engineering issn 23195347, vol. Pdf on may 29, 2019, m f zolkepli and others published slope stability analysis using modified felleniuss and bishops method find, read. Pdf on jun 1, 2019, s alfat and others published slope stability analysis through variational slope geometry using fellenius method find. This is a modified version of the method of slices. The accuracy of equilibrium methods of slope stability analysis. Chapter 4 slope stability universiti teknologi malaysia. This program is used to perform slope stability analysis embankments, earth cuts, anchored retaining structures, mse walls, etc. Slope stability evaluations by limit equilibrium and. Slide2 includes builtin finite element groundwater seepage analysis, probabilistic analysis, multiscenario modeling, and support design. The result of the slope failure can be catastrophic, including the loss of considerable property and many lives. The analytical solution of fellenius method for the slope stability analysis which is the recommended method in korea harbour structure design manual is presented and the values of. Slope stability is the resistance of inclined surface to failure by sliding or collapsing.
Moon abstract a slope stability analysis program based on bishops simplified method has been written for a hewlettpackard 4lc calculator. Various methods are available for slope stability analysis. Stability analysis of slopes with surcharge by lem and fem. Koh editor, mechanics of landslides and slope stability. Bvs viswanadham, department of civil engineering, iit. Box 366, beijing, peoples republic of chitla received september 1, 1987 accepted april 11, 1988 this paper explores the feasibility of using optimization methods to search for.
The anchorage sheet pile can keep the slope stable and prevent the land sliding. Slope stability analysis through variational slope. In the lecture part of this course we will discuss a variety of methods of analysis of slope stability and instability. Slope stability analysis using modified felleniuss and bishops method.
Slide2 is a powerful, userfriendly, 2d slope stability analysis program using limit equilibrium method. Slices sometimes known as the fellenius method or the swedish circle. Slope stability analysis geotechnical design manual m 4603 chapter 74 december 2006 slope stability analysis detailed assessment of the groundwater regime within and beneath the slope is also critical. Slice, fellenius method first introduced by fellenius, slope stability calculations with fellenius method if the count is use a lot of complicated manual calculations so that it becomes less practical and relatively take times. About 26 m2 of 50 to 70 mm stone and 21 m2 of core stones with weight in range of 10 to 50 kg were placed on the soilcement columns to form a revetment for protecting the toe of the slope along the river bank from erosion total area of about 47 m2. Mar 21, 2016 the aims of slope stability analyses are to understand the development and form of natural slopes and the processes responsible for different natural features. Table 1 equations and unknowns in limit equilibrium analysis of slope stability equations unknowns methods that satisfy only force equilibrium. Slope stability analysis limit equilibrium or the finite.
The study evaluated four methods for calculating slope stability. Slope stability analysis using modified felleniuss and. From the analysis, the result indicate that the factor of safety fos value of bishops simplified method 1955 was 7. The use of this program and input and check programs is described. Slope stability analysis through variational slope geometry using fellenius method. Comparison of slope stability methods of analysis1 received october 12, 1976 accepted april 4, 1977 the papercompares six methods ofslicescommonly sed for slopestability analysis. S alfat 1, l o m zulmasri 2, s asfar 3, m s rianse 2 and r eso 1. In most cases, they are shown to give similar results. The analytical solution of fellenius method for the slope stability analysis which is the recommended method in korea harbour structure design manual is presented and the values of safety factor. The only remaining forces acting on a slice, see fig.
Box 366, beijing, peoples republic of chitla received september 1, 1987 accepted april 11, 1988. Stability modeling with slopew an engineering methodology november 2012 edition geoslope international ltd. Bishops simplified slope stability analysis with a hewlettpackard 41c calculator. Assignment perform a slope stability analysis for a designed slope with a gravity wall. Detailed pieziometric data at multiple locations and depths within and below the slope will likely be needed. Taylors slope stability charts revisited article pdf available in international journal of geomechanics 114. An overview on methods for slope stability analysis ijert. Slope stability analysis is performed to assess the safe design of a humanmade or natural slopes e. They are certainly major factors in cut slope stability and in. Michalowski a stability analysis of slopes based on a trans lational mechanism of failure is presented. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes. In the method of slices or the fellenius method, the sliding mass above the.
Paper open access slope stability analysis using modified. Pdf slope stability analysis through variational slope geometry. Exploration of methods for slope stability analysis influenced by. What are the factors that influence slope stability. Analytical solution of fellenius slope stability analysis. The coefficients m and n are functions of the dimensionless number cgh and the depth factor d.
Slope stability analysis using finite element techniques colby c. In ssr technique, it is assumed that slope materials have elastoplastic. Determination of slope safety factor with analytical solution and. An analysis of slope stability begins with the hypothesis that the stability of a slope is the result of downward or motivating forces i.
To assess the possibility of landslides involving natural or existing engineered. This paper aims an overview on various methods of slope stability on the basis of assumptions, factor of safety. Slope stability evaluations by limit equilibrium and finite element methods trondheim, april 2006 thesis submitted to the faculty of engineering science and technology, norwegian university of science and technology in partial fulfilments of the requirements for the degree of philosophiae doctor in civil engineering. The term slope means a portion of the natural slope whose original profile has been modified by artificial interventions relevant with respect to stability. Fhwa nhi06088 6 slope stability soils and foundations volume i 6 3 december 2006 6.
Analisis perhitungan stabilitas lereng dengan metode. Instead of assuming a circular failure surface, the slope was analyzed for noncircular failure by optimizing surfaces in a path search. The col lapse mechanism is assumed to be in the form of rigid blocks analogous to slices in traditional slice methods. Evaluation of minimum factor of safety in slope stability analysis zuyu chen and changming shao institute of water consetvanc and hydroelectric power research, p. Aided design the university of iowa iowa city, iowa usa th iowa asce geotech. Slope stability analysis using modified felleniuss and bishops method m f zolkepli1, m f ishak1 and m s i zaini1 1faculty of engineering technology, universiti malaysia pahang, 26300 kuantan, pahang, malaysia corresponding author email. Pdf analysis of slope stability sido dadi academia. Slope failure is the movement of mass on slope falls, slides, flows landslide. The term landslide refers to a situation of instability affecting natural slopes and involving large volumes of soil. Slide2 can be used for all types of soil and rock slopes, embankments, earth dams, and retaining walls. Slope stability evaluations by limit equilibrium and finite. Stability modeling with slopew an engineering methodology september 2014 edition geoslope international ltd. Swedish circle method, stability of slope, mumbai university solved.
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