This report provides advice and guidance on good practice in road rock slope excavation. Digital rights management drm the publisher has supplied this book in encrypted form, which means that you need to. The effect of spacing of rock bolts on the stability of. Click download or read online button to get rock slope stability book now. Software for modelling and analyzing rock slopes rocscience. Slope stability analysis should consider the cases of shortterm and long. Soil slopes 1 effective stress, strength and stability effective stress strength the applicability of shear test data to field stability problems factors affecting the evaluation of field stability summary 2 short term stability, undrained strength of clays short term stability. Erik eberhardt university of british columbia geological engineeringearth and ocean sciences, ubc, 6339 stores rd. Rock slope stability analysis utilization of advanced numerical techniques. Is there any free software available for slope stability.
In civil engineering, projects include transportation systems such as highways and railways, dams for power production and. Rock slope stability analysis utilization of advanced. A critical component of any stability analysis is estimation of the strength of the rock mass and the discontinuities which control sliding and this issue will be discussed in some detail. It presents design information on structural geology, shear strength of rock and ground water, including weathered rock. Estimating rock mass strength rms remains one of the challenges facing rock mechanics practitioners. Digital rights management drm the publisher has supplied this book in encrypted form, which means that you need to install free software in order to unlock and read it.
A field data collection methodology was developed to provide the inputs to a slope stability investigation that utilises threedimensional geometric, limit equilibrium and distinct element codes. International slope stability research rock engineering news. The plane failure in rock slope occur when a structural discontinuity plane dips or. Assessing geotechnical management rock engineering srk news. Qslope is an empirical rock slope engineering method for assessing the stability of excavated rock slopes in the field. This type of analysis is also utilized to determine. Rock slope stability download ebook pdf, epub, tuebl, mobi. Slope stability best slope stability analysis software. The stability condition of slopes is a subject of study and research in soil mechanics, geotechnical engineering and engineering geology. Fundamentals of slope design keynote address at slope. It appears that the study in california was carried out during a time when there were no signifi.
They are certainly major factors in cut slope stability and in the stability of fill slopes involving both internal and external slope failures. Rock slope stability analysis gian paol giani download. As soil and rock get buried deeper in the earth, the grains can rearrange themselves to form a more compact structure, but the pore water is constrained to occupy the same space. Slope stability is an intuitive program for the analyses of all types of slopes and retaining walls. Distinctelement modelling of freefield boundary conditions and seismic input. Also, as may be expected, the ground water in back of the slope appears to have a major influ ence on the stability of the slope. This paper is concerned with providing a set of stability charts for rock slopes based on the hoekbrown failure criterion that can be used by practising engineers to rapidly assess the. Estimating rock mass strength rock engineering srk. Reduce inclination all soilrock preventtreat during early stages add weight to toe soils treat during early stages.
Slope stability refers to the condition of inclined soil or rock slopes to withstand or undergo movement. 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. Slope stability verification manual deep excavation llc page 11 e. Soilrock slopes are widely distributed around the world, while the commonly adopted method by. Is there any free software available for slope stability analysis. Reduce inclination all soil rock preventtreat during early stages. Toppling failure in hard rock with slabs or columns defined by discontinuities that dip steeply into the slope. On civil projects, rock cuts must be safe from rock falls and largescale slope instability during both. Rock slope design guide page 21 section 200 geologic explorations, data collection and presentation 201 i.
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. The stability of this particular slope was critical because it was located immediately across the road from two blocks of apartments, each housing approximately 5,000 people. Rock slope stability analysis a variety of engineering activities require excavation of rock cuts. Another aspect of water that affects slope stability is fluid pressure. The stability of the slopes were characterised dry and wet based on piezometric data gathered from the 2007 groundwater study. The infinite variability of geology, weathering and alteration processes, the influence of mining and the inability to test rock mass strength directly, all pose great challenges to making reliable estimates. Retention is obtained from the stone weight and its interlocking and. Assessing geotechnical management rock engineering srk. Aug 31, 2017 q slope is an empirical rock slope engineering method for assessing the stability of excavated rock slopes in the field. The stability of rock slopes is an important issue in both civil and mining engineering.
Evaluation of mountain slope stability considering the impact of. Rock reinforcement design relies primarily on surface mapping and logging discontinuities from borehole data to assess fracturejoint patterns and other conditions, as discontinuities strongly control rock slope stability. The term landslide refers to a situation of instability affecting natural slopes and involving large volumes of soil. Application of rock mass classification systems to rock slope. Geotechnical characterisation rock engineering srk news. Pdf a short course in soil and rock slope engineering. Rock slope stability and the design of the appropriate slope angle is extremely important for surface mining in these difficult economic times. A short course in soil and rock slope engineering book summary.
The term slope means a portion of the natural slope whose original profile has been modified by artificial interventions relevant with respect to stability. This site is like a library, use search box in the widget to get ebook that you want. Application of rock mass classification systems to rock. Field reconnaissance and a detailed fracture survey of the rock slopes were conducted by dr. On civil projects, rock cuts must be safe from rock falls and lar.
Focus on rock engineering and slope stability newsletter. In this study, rock slope stability analysis, especially probability analyzes will be. Rock slope design guide page 11 section 100 rock slope design background 101 introduction this manual is intended to provide guidance for the design of rock cut slopes, rockfall catchment, and rockfall controls. By increasing the distance of rock bolts, the strength reduction factor srf has been decreased. Types of rock slope failures as shown in figure 151, most rock slope failures can be classified into one of four categories depending on the type and degree of structural control. Rock slope engineering covers the investigation, design, excavation and remediation of manmade rock cuts and natural slopes, primarily for civil engineering applications. The slope stability analyses were performed on representative sections of the slope with the rocscience program slide and phase2. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes. Chapter 10 slope stability analysis nysdot geotechnical page 104 january 21, 2014 design manual 10. Intended for use in reinforcementfree road or railway cuttings or in opencast mines, qslope allows geotechnical engineers to make potential adjustments to slope angles as rock mass conditions become apparent during construction. The q slope method for rock slope engineering springerlink.
Recommendations presented in this manual are based on research presented in shakoor. 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. Our programs include software for 2d and 3d soil and rock slope stability, limit equilibrium and finite element analysis, and 2d and 3d modeling. An unmatched selection of software for rock slope analysis. Rock slope engineering rock slope engineering civil and mining 4th edition duncan c. The design of too flat of a highwall angle means considerable additional mining costs.
Seismic slope stability evaluation considering rock mass. Rock slope stability an overview sciencedirect topics. 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. On civil projects, rock cuts must be safe from rock falls and largescale slope instability during both construction and operation. The analysis of a source of rockfall or the stability of an entire rock slope has two goals. The objective of the analysis was to evaluate and judge the condition and overall stability of the exposed rock, and identify where. Figure 1 gives a general view down sau mau ping road, showing the steep rock slopes on the left and the apartment blocks on the right. In this study, a slope stability analysis method considering the nonuniform characteristics of rocks was proposed. These statistics demonstrate that water and geology are the most important influences in rock slope stability. Introduction this document contains a series of verification slope stability problems that have been analyzed. Rock slope stability of the vmt prince william sound. Slope stability verification manual deep excavation llc page 3 a. Fhwahi99007 1998 which discusses geologic terms related to rock slope stability. Intended for use in reinforcement free road or railway cuttings or in opencast mines, q slope allows geotechnical engineers to make potential adjustments to slope angles as rock mass conditions become apparent during construction.
This thesis investigates the threedimensional influence of discontinuity sets and topography on kinematics of rock slope stability and failure mechanisms. The subjects covered include rock slope stability, site investigation, rock slope design, rock slope excavation and environmental considerations. The damang cutback is generally situated within strong rock. Rock slope design guide ohio department of transportation. Stability analysis of a rock slope requires assessment of shear strength parameters, that is, cohesion c and angle of internal friction of the rock mass. To evaluate the stability state of rock slope quantitatively, the strength reduction method was integrated into our analysis framework. The experience of the practitioner, therefore, plays a crucial role in such estimates. Rock slope stability analysis ubc eoas university of british. Pdf threedimensional kinematic controls on rock slope. Slope stability is the best slope stability analysis software suite around providing complete supported slope analysis. Factors of safety fos were calculated using average mohrcoulomb parameters. The effect of spacing of rock bolts on the stability of rock.
But perhaps equally important is the indication that unique combinations of rock structure are the primary cause of rock slope failures. They are certainly major factors in cut slope stability and in the stability of fill slopes involving. This study adopts the finite element lower bound limit analysis method to study the seismic stability of disturbed rock slopes considering. 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. 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. 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 primary purpose of this project was to evaluate the stability of rock slopes of the vmt during potential earthquake conditions. 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. Geotechnical investigation in kwatebala srk mining consulting. Cruden and others published rock slope stability analysis find, read and. Slope stability analyses include static and dynamic, analytical or empirical methods to evaluate the stability of earth and rockfill dams, embankments. Circular failure in overburden soil, waste rock or. Geotechnical investigation in kwatebala srk mining.
If you dont already have adobes pdf reader, you can. In this paper a numerical analysis of slope stability problems in blocky rock is presented with emphasis given to the various possible failure modes. Shear strength of rock masses by back analysis of slope failures 90. This section provides information on rock and slope stability related to landslides. Pdf soilrock slope stability analysis by considering the. Exposure rock mass parameters significant for slope stability. International slope stability research rock engineering.
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