Comparing with the result obtained through the limit equilibrium method, the presented method was proved to be more accurate and suitable for stability analysis of rock slope with a thin shear plane. This chapter deals with rock slope stability, a subject that has shown remarkable. Slope stability analyses include static and dynamic, analytical or empirical methods to evaluate the stability of earth and rock fill dams, embankments. Sorry, we are unable to provide the full text but you may find it at the following locations. Application note slope stability analysis worked example 4. Rock slope stability analysis giani, gian paolo on.
Slope stability analysis by the limit equilibrium method. Modified limiting equilibrium method for stability. Today, there are several methods for slope stability analysis, each has its own advantages and disadvantages. The stability analysis of a jointed rock slope with two sets of unfilled joints, under its own weight, is carried out directly by considering failure surfaces along some particular joints and also going through the intact rock. In this paper, several rock mass classification systems developed for rock slope stability assessment are evaluated against known rock slope conditions in a region of saudi arabia, where slopes located in rugged terrains with complex geometry serve as highway road cuts. An analytical solution for calculating the probability of failure of rock slopes against planar sliding is proposed. The primary purpose of this project was to evaluate the stability of rock slopes of the vmt during potential earthquake conditions. Field reconnaissance and a detailed fracture survey of the rock slopes were conducted by dr. The limit equilibrium method is the most common approach for analyzing slope stability in both two and three dimensions. Highlights limit analysis for rock structures subjected to seepage forces is formulated.
Includes recommendations for analysis, design practice, design charts, tables, and more. Stanford libraries official online search tool for books, media, journals, databases, government documents and more. The paper first outlines the standard shear strength reduction ssr technique used for fe slope stability analysis of mohrcoulomb slopes. Stability analysis of rock slopes using the finite element method. Wyllie and mah 2004 and giani 1992 states rock material experienced a collapse as the rock mass. Scribd is the worlds largest social reading and publishing site. The first step is to analyze the structural fabric of the site to determine if orientation of the discontinuities could result in instability of the slope under consideration.
According to the different analyzing models, three groups w, t, and r were created, and the rock contents were. The stability of a potentially unstable rock slope was analyzed based on. Description about book rock slope stability analysis from amazon deals with the methods of assessing the stability of rock slopes and the techniques of improving the stability conditions of natural and artificial slopes which are at risk. Stability analysis method for rock slope with an irregular. The block is considered to undergoes slippage along the plane for the value of ratio rock slope failure. Stability analysis of rock wedges with multiple sliding surfaces. This was applied in the model by selecting all the boundary lines between the mudstone and weathered mudstone unshow the water table, to facilitate.
Pdf on jan 1, 2011, alavi nezhad khalil s v abad and others published rock slope stability assessment by using kinematic analysis and slope mass rating at bandar seri alam, johor find, read. This type of analysis is also utilized to determine. It consists of five categories of topics on the science and practice of rock engineering. The subjects covered include rock slope stability, site investigation, rock slope design, rock slope excavation and environmental considerations. Numerical analyses methods are the most common ones that are used for rock and soil slope analyses. Pdf stability analysis of a rock slope in himalayas. Conventional methods of slope stability analysis can be divided into three groups. Chapter 15 rock slope design nysdot geotechnical page 154 january 14, 2015 design manual 15.
The seepage forces are computed by means of a finite element procedure. Rock slope stability analysis a variety of engineering activities require excavation of rock cuts. Geotechnical soil and rock design parameters are required for slope stability analysis with strength parameters developed using methodologies presented in chapter 5 and the other referenced publications in section 7. Although rock mechanics addresses many of the rock mechanics issues which arise in underground mining engineering, it is not a text exclusively for mining applications.
Rock slope stability analysis gian paol giani download. Rock slope stability analysis transportation research board. The user interface and analysis options are almost identical to the generalised slope analys is module except for the ability to define a slip surface of any general shape. Rock slope stability analysis ubc eoas university of british. Stability analyses of the slopes were carried out using the computer program slide 6 with the bishops method of analysis. In the lecture part of this course we will discuss a variety of methods of analysis of slope stability and instability. Assessment of groundwater conditions in the rock discontinuities, as is true of any slope, is also critical to the assessment of stability 01, 28, 32, 49, and 40. Slope stability analysis universita degli studi di parma. The limit equilibrium method is generally utilized in the stability analysis of rock slope with single failure plane. Click download or read online button to get rock slope stability book now. Rock slope stability download ebook pdf, epub, tuebl, mobi.
New methods and insight, second edition provides helpful practical advice and design resources for the practicing engineer. Application note slope stability analysis worked example. For all but very weak rock materials, the analysis of rock slope stability is fundamentally a twopart process. Slope stability is a major concern for geotechnical and mining engineers worldwide, and consequently, a great deal of effort at rocscience is dedicated to slope stability analysis software. Stability analysis of rock wedges with multiple sliding. Pdf on jan 1, 2011, alavi nezhad khalil s v abad and others published rock slope stability assessment by using kinematic analysis and slope mass rating at bandar seri alam, johor. An analytical solution in probabilistic rock slope stability. The probabalistic sara stability analysis for road access program is still under development. Slope stability refers to the condition of inclined soil or rock slopes to withstand or undergo movement. Most slope stability analysis computer programs are based on the limit equilibrium concept for a twoor threedimensional model. For an additional 9 years he was a principal advisor to. Rock slope stability analysis utilization of advanced.
Using the finite element analysis method and the autorefine search method in slide, run the groundwater and slope stability analysis on the model. Geomechnical parameters considered in slope stability analysis. This classic handbook deals with the geotechnical problems of rock slope design. Slope stability analysis of soil slopes using the nonvertical slice method proposed by sarma noncircular slip. Stability analysis of rock slopes subjected to seepage. A set of 5 basic slope stability problems, together with 5 variants, was distributed in the australian geomechanics profession and overseas as part of a survey sponsored by acads association for computer aided design, in 1988. Rock slope design guide ohio department of transportation.
The quantitative determination of the stability of slopes is necessary in a number of engineering activities, such as. It is shown that seepage forces are derived from the gradient of pore pressure. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes. It also describes survey and measurement methods to model the behaviour of rock masses. Highway administration, usa giani jp 1992 rock slope stability analysis. The objective of the analysis was to evaluate and judge the condition and overall stability of the exposed rock, and identify where. In civil engineering, projects include transportation systems such as highways and railways, dams for power production and water supply, and industrial and urban development. Deals with the methods of assessing the stability of rock. Design of overall slope angle and analysis of rock slope. Fhwa nhi06088 6 slope stability soils and foundations volume i 6 3 december 2006 6. The slope stability assessment in this report is based on subsurface conditions in the boreholes, the observations during our site visits, and the slope profiles provided by the client.
Application of rock mass classification systems to rock. Pdf in this paper a numerical analysis of slope stability problems in blocky rock. Chapter 4 soil and rock classification and logging pdf 674 kb chapter 5 engineering properties of soil and rock pdf 3. In this paper a numerical analysis of slope stability problems in blocky rock is presented with emphasis given to the various possible failure modes block sliding andor block tilting. Today, a vast range of slope stability analysis tools exist for both rock and mixed rocksoil slopes. Rock bolts jointed or sheared rock preventtreat sliding slabs.
Pdf rock slope stability assessment by using kinematic. It has been written for the nonspecialist mining or civil engineer, with worked examples, design charts, coverage of more detailed analytical methods, and of the collection and interpretation of geological and groundwater information and tests for the mechanical properties of rock. Detailed pieziometric data at multiple locations and depths within and below the slope will likely be needed. Paul guyer is a registered mechanical engineer, civil engineer, fire protection engineer and architect with over 35 years experience in the design of buildings and related infrastructure. The book deals with the methods of assessing the stability of rock slopes and the techniques of improving the stability conditions of natural and artificial. An introduction to slope stability and protection j. What are the resulting factors of safety bishop, spencer, janbu corrected and janbu simplified. This chapter deals with rock slope stability, a subject that has shown remarkable development in the last twenty years relative to methods for estimating shear strength of rock discontihuities and methods of analysis. The most common engineering methods for analyzing slope stability are the limit equilibrium method or method of slices, and the finite element method, using a strength reduction factor bri 04. Chapter 4 classic methods of slope stability analysis. Rock slope stability analysis, p giani, 1992 free ebook download as pdf file.
Rock slope stability analysis pdf free download epdf. Slope stability analysis of the right abutment of a railway bridge proposed at about 350 m above the ground level, crossing a river and connecting two huge hillocks in the himalayas, india is. Fhwahi99007 1998 which discusses geologic terms related to rock slope stability. Rock slope stability analysis gian paol giani deals with the methods of assessing the stability of rock slopes and the techniques of improving the stability conditions of natural and artificial slopes which are at risk. Wyllie and mah 2004 and giani 1992 states rock material experienced a. Fundamentals of slope design keynote address at slope. This site is like a library, use search box in the widget to get ebook that you want. The recognition and analysis of the different modes of failure are the main issues that will be addressed in this paper on the fundamentals of slope design. Chapter 10 slope stability analysis nysdot geotechnical page 104 january 21, 2014 design manual 10. However, the stratified rock slope cannot be accurately estimated by this method because of different bedding planes and their variable shear strength parameters. Erik eberhardt university of british columbia geological engineeringearth and ocean sciences, ubc, 6339 stores rd.
This chapter addresses rock slope stability analysis. The term landslide refers to a situation of instability affecting natural slopes and involving large volumes of soil. A critical component of any stability analysis is estimation of the strength of the rock mass and the discontinuities which control sliding and this. Planar failure analysis a block is rest on a slope having angle. Fundamentals and methods presents basic principles for the safe design of constructed or natural earth slopes.
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. They are certainly major factors in cut slope stability and in. These analyses are often completed using slope stability charts and the dsara deterministic stability analysis for road access slope stability program. Soil slope stability analysis 339 isfied for each and every slice, it is also satisfied for the entire mass. The stratified rock of jurassic strata is widely distributed in three gorges reservoir region.
A monte carlo approach to estimate the stability of soil. Rock slope stability analysis, p giani, 1992 scribd. 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. This report provides advice and guidance on good practice in road rock slope excavation. The method in based on the theory of random fields accounting for the influence of spatial variability on slope reliability. Using a unified approach to address a medley of engineering and construction problems, slope stability analysis and stabilization. Cruden and others published rock slope stability analysis find, read and cite all the research you need on researchgate. Global stability with relict slip surface in this scenario, the presence of the relict slip surface was assumed. How do friction and cohesion work together to stabilize slopes.
Simple failure mechanisms using uniform rigid rock block motions are incorporated in the yield design kinematic approach. Stability analysis of jointed rock slope sciencedirect. Slope stability analysis should consider the cases of shortterm and long. Rock slope stability kliche 1999 free download as pdf file. Rock slope stability of the vmt prince william sound.
The evaluated excavation outcrop is formed by a system of tectonic faults and joints arranged into. One of the softwares that can analyze rock slope stability in a nu. Deals with the methods of assessing the stability of rock slopes and the techniques of improving the stability conditions of natural and artificial slopes which are at risk. Rock slope stability analysis gian paol giani deals with the methods of assessing the stability of rock slopes and the techniques of improving the stability conditions of natural and. The stability condition of slopes is a subject of study and research in soil mechanics, geotechnical engineering and engineering geology. This engineer manual em provides guidance for analyzing the static stability of slopes of earth and rock fill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. The number of equations of equilibrium available depends on the number of slices n and the number of equilibrium conditions that are used.