A slope stability problem in hong kong 7 the symbols and dimensions used in these models are as follows. Buy this with guidelines for open pit slope design hardcover today. Rock slope stability of the vmt prince william sound. The rocks present at the bridge site are heavily jointed. Slope w can effectively analyze both simple and complex problems for a variety of slip surface shapes, porewater pressure conditions, soil properties, and loading conditions. Gravity is the force that acts everywhere on the earths surface, pulling everything in a direction toward the center of the earth. Slope stability analysis 1 slope stability analysis for landfills and embankments geotechnical design cgn 4801 by kamal tawfiq, ph. Demand is the loading action applied by gravity through the mass of the material being retained and includes the water, dynamic and seismic effects.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. Introduction to slope stability and related aspects. Erik eberhardt university of british columbia geological engineeringearth and ocean sciences, ubc, 6339 stores rd. The stability condition of slopes is a subject of study and research in soil mechanics, geotechnical engineering and engineering geology. Simplified assumptions in 2d slope stability methods have led to factors of safety that differ from the more rigorous 3d slope stability analysis methods. Samma escarpment road is located in asir region, saudi arabia. Slope stability evaluation for the new railway embankment. Stability analysis of rock slopes subjected to seepage. As a matter of fact, the latter ones appear as a component of the external. Slope stability model of the questa rock pile phase 2. The factor of safety is a very useful index for determining how close or far away a slope is from failure, and its accuracy is consistent with the accuracy of geotechnical input data. Nowadays, different approaches are available to evaluate the stability of a particular slope 1, 2, and 3.
Rock slope stability analysis lec 1 linkedin slideshare. Rock slope stability analysis utilization of advanced numerical techniques dr. Despite the advances that have been made, evaluating the stability of slopes remains a challenge 4, 5, 6, and 7. Rock slope stability analysis giani, gian paolo on. Galena is a powerful, comprehensive and userfriendly slope stability analysis system developed by practising engineers for engineers. Ppt slope stability analysis powerpoint presentation. Rock slope stability analysis hardcover january 1, 1992 by gian paolo giani author see all formats and editions hide other formats and editions. Shear strength and related failure criteria, rock mass and its strength, and other geomechanical parameters considered in slope design. Slide 23 freezethaw and icewedging may have been a contributing factor in this previous rockslide, reactivated on dec. Especially in the industrial countries with a high population density it is important to know about the rock slope.
Rock slope stability is also an important consideration in the design of transportation corridors, such as roads, highways, and rail lines. The objective of the analysis was to evaluate and judge the condition and overall stability of the exposed rock, and identify where. The citadel is situated on the fortress hill and it is the only inhabited fortress in romania. In civil engineering, projects include transportation systems such as highways and railways, dams for power production and water supply, and industrial and urban development. The surface exfoliation of weathered material does not directly affect global stability of cut slopes in flysch formations. Slope stability analysis slopew is the leading slope stability software for soil and rock slopes. Slope stability is part of wikiproject geology, an attempt at creating a standardized, informative, comprehensive and easytouse geology resource. Rock slope stability download ebook pdf, epub, tuebl, mobi.
H height of the overall slope or of each bench 60 m or 20 m respectively. The ncgs is mapping bedrock and collecting rock slope stability data along the north carolina segment of the brp as part of a geologic inventory of the brp funded by the national park service. Modes and mechanisms of slope failures in soils and rocks. 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.
Benjamin paul geological engineering investigation of roc. The geological engineering investigation of rock slopes are a very important fact for the stability and because of that for the safety of the population. The geological strength index, gsi, relates the failure criterion to geological observations in the field. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. This book focuses on rock slope stability, with sections on geological data collection. Simple, well considered engineering judgment based on fundamental principles, which identify all potential mechanisms of failure and.
A slope stability analysis was performed for the mine rock pile located at molycorps questa mine. 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. On a flat surface the force of gravity acts downward. It describes the basic rock slope failure modes and methods of analysisboth kinematic and kinetic techniques. Assessment of rock slope stability and structurally. Hydrogeological aspects of the openpit mine slope stability. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes.
Stability analysis of a rock slope in himalayas 3 fig. The purpose of the following section is to apply the kinematic approach of limit analysis described in the previous section to assess the stability of a rock slope see fig. 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. Download pdf rock slope stability second edition free. Whether youre involved in surface mine design or production, construction, education, or regulation, this is an important new book for your library.
B this article has been rated as bclass on the projects quality scale. Stability analysis of rock slopes using the finite element. Slope stability model of the questa rock pile phase 2 murray fredlund soilvision systems ltd. Society for mining, metallurgy, and exploration, 1999. The design engineer and the regulator must be familiar with the concepts to choose the best design at the lowest cost. It also highlights some of the differences in approach to that adopted by the limit equilibrium method of slices. The probabalistic sara stability analysis for road access program is still under development. Slopes in mountainous regions require cohesion 8 undrained short term slope failure in clay. Stability charts for rock slopes based on the hoekbrown. Slope stability analyses include static and dynamic, analytical or empirical methods to evaluate the stability of earth and rockfill dams. Pdf stability analysis of a rock slope in himalayas. Galena was originally developed for mining applications, and has also been widely accepted as a valuable tool for use in civil and the broader geotechnical engineering fileds, and within teaching and research.
Symbol parameter dimensions f factor of safety against sliding along sheet joint calculated h height of the overall slope or of each bench 60 m or 20 m respectively. Discovery ce employ civil engineers and engineering geologists with a wealth of expertise in all aspects of geotechnics including slope stability analysis and assessment. Rock slope stability analysis utilization of advanced. Stability analysis of rock slopes subjected to seepage forces. Field reconnaissance and a detailed fracture survey of the rock slopes were conducted by dr. Slopew can effectively analyze both simple and complex problems for a variety of slip surface shapes, porewater pressure conditions, soil properties, and loading conditions. Rock slope stability and the design of the appropriate slope angle are extremely important for surface mining in these difficult economic times.
Ppt slope stability analysis powerpoint presentation free. Application note slope stability analysis worked example 1 introduction this note describes the typical steps followed in setting up and analysing a slope stability problem with limitstate. Tagasoft geotechnical software slope stability analysis. As part of the slope design program and slope optimisation for the next pushback, the past and present performance of the pit slopes were evaluated to assess the potential behaviour of future pit expansion. Chapters include geotechnical and geomechanical analysis techniques. Site constraints often result in new developments being constructed close to the crest of marginally stable slopes such as this development at cemex cement works in rugby. Rock slope stability charles a kliche whether youre involved in surface mine design, surface mine production, construction, education, or regulation, this is an important book for your library. In practice, 3d analysis of slope stability is not performed unless the geometry of the slope is very complex and complicated or the failure mechanism is compound. Stability analysis of rock slopes using the finite element method. Pdf rock slope stability assessment by using kinematic. The goal of this task is to provide a sensitivity analysis with respect to the influence of various input parameters on the slope stability model. The objective of the analysis was to evaluate and judge the condition and overall stability of.
A geomechanical assessment is underway to evaluate the stability of the walls for expansion over the next 15 years. Price new from used from hardcover, january 1, 1992 please retry. Whenever slope stability is being assessed, the concept of demand versus capacity of the structure must be continually considered. The most serious disorders which can occur in slopes are 1 the sliding of blocks along the discontinuing surfaces which exist at the opening of trenches and 2 rock falls or sliding of blocks resulting from the rapid change in the mechanical characteristics of the rock bench which supports them. In the vast majority of slope stability analysis cases, geotechnical engineers primarily conduct design based on calculated factor of safety values. Slope stability, triggering events, mass movement hazards. Society for mining, metallurgy, and exploration, isbn 0873351711 eberhardt, erik 2003, rock slope stability analysis utilization of advanced numerical techniques pdf, vancouver, canada. The primary purpose of this project was to evaluate the stability of rock slopes of the vmt during potential earthquake conditions. Slopew can model almost any stability problem, including. Despite the widespread availability of software programs using sophisticated numerical methods, the physical principles of slope engineering should not be forgotten. This escarpment road represents a major corridor in the area which connects different cities and touristic resorts in the region.
A comprehensive guide for mining and construction engineers responsible for rock slope stability. Slope stability refers to the condition of inclined soil or rock slopes to withstand or undergo movement. Application note slope stability analysis worked example. Slope stability, triggering events, mass movement hazards factors that influence slope stability gravity the main force responsible for mass movement is gravity. Slope stability analysis slope w is the leading slope stability software for soil and rock slopes. Rock slope stability and the design of the appropriate slope angle is extremely important for surface mining in these difficult economic times. If you would like to participate, you can choose to edit this article, or visit the project page for more information. 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.
Holeovickach 41, csfr abstract the development and use of machines of large capacities at openpit mining requires also the solution of hydrogeological problems associated with it. Earth and ocean sciences, university of british columbia. The design of too flat of a highwall angle means considerable additional mining costs. These analyses are often completed using slope stability charts and the dsara deterministic stability analysis for road access slope stability program. Currently, practising engineers typically use a number of stability charts when attempting to predict the stability of rock slopes. Planar failures i infinite slopes ii finite slopes ii. The influence of a change in soil shear strength parameters as influenced by weathering factors. An indirect influence on slope stability is the change of slope geometry as a result of this process. 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. If the degraded material is deposited onto a roadwayrailway facility, the safety of traffic may be affected. Rock slope stability analysis a variety of engineering activities require excavation of rock cuts. Download pdf rock slope stability analysis free online.
Mid this article has been rated as midimportance on the. Rock slope stability and the design of the appropriate slope angle. Kinematic analysis is a method used to analyze the potential for the. Back analysis of failed slopes, and sensitivity approach. Simple, well considered engineering judgment based on fundamental principles, which identify all potential mechanisms of failure and account for the stability of each mechanism in. Hydrogeological aspects of the open pit mine slope stability case study by josef hanzlik1 1 institut of geotechnics csas cs182 09 praha 8, v. A slope stability problem in hong kong 8 estimates of shear strength one of the most critical steps in any limit equilibrium analysis is the determination or the estimation of the shear strength parameters c and. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. Slope stability analysis and mitigation measures in the area of the sighisoara medieval citadel the sighisoara medieval citadel has a very big importance to the cultural, architectural and historical heritage of romania. Evaluation of slope stability is one of the daytoday practices of geotechnical engineers. This book focuses on rock slope stability, with sections on geological data collection, geotechnical data collection and analysis, surface water and groundwater effects, kinematic and kinetic stability analysis, rock slope stabilization techniques, and rock slope instrumentation and monitoring. Impact of weathering on slope stability in soft rock mass. Slope stability analysis and mitigation measures in the area. Click download or read online button to rock slope stability second edition book pdf for free now.
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