Download or read book Seismically induced Rock slope Failure written by Lorne Arnold and published by . This book was released on 2016 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismically-induced rock-slope failures have caused the deaths of tens of thousands of people and economic losses in the billions over the last century. They are among the most common, dangerous, and still today, least understood of all seismic hazards. This research aims to further the understanding of seismically-induced rock-slope failure by studying the initiation and growth of fractures in rock-slopes during seismic loading. The Bonded Particle Model, which is commonly used in the static simulation of complex rock mechanics applications, is extended for use in fully-dynamic 2-dimensional simulation of rock-slopes. Using this model, the influence of ground motion characteristics and structural geology on the behavior and performance of rock-slopes during earthquakes is explored. The results show that dynamic stresses that develop within rock-slopes make the face of the slope particularly susceptible to damage. As damage accumulates in rock-slopes during dynamic loading, slopes can soften and become more sensitive to lower frequency input. Loading amplitude and frequency have a substantial impact on the seismic performance of rock-slopes, and this impact is highly dependent on the internal geologic structure of the rock-slope. The model results are consistent with observations of several historical earthquake-induced rock-slope failure events, and provide insight into the fundamental mechanisms behind seismically-induced rock-slope failures.
Download or read book Seismic Rock Slope Failure Modes and Time dependent Displacements Using Single Block Methods written by Matthew D. Gibson and published by . This book was released on 2015 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismically induced rock slope failures have resulted in billions of dollars of economic damage and enormous loss of life throughout the world. Accurate prediction of the triggering and run out of these failures is elusive for a variety of reasons, including knowledge of the physical modes of failure. Simplified tools that are prevalent in soil slope engineering are relatively non-existent in rock slope engineering. Current state of art in rock slope engineering requires complex and computationally expensive numerical models to evaluate the seismic performance or rock slopes, which inhibits extensive evaluations to be conducted. This research explores the potential failure modes of an idealized rigid rock block and expands the modes typically considered to include not only sliding but also toppling (pure forward rotation), confined toppling (constrained forward toppling) and slumping (combined backward rotation and translation). The yield acceleration (or minimum inertial acceleration to cause block movement) for slumping, similar to toppling, is found to be lower than for pure translational sliding. These yield accelerations indicate the initial modes of rock block failure; however, they do not always predict the ultimate failure mode. To predict the final failure modes, the results of discrete element numerical analyses were compared to pseudo static yield acceleration to develop a seismic failure mode chart based on block geometry and interface friction. For co-seismic displacement predictions, simplified models predicting ultimate displacement of a mass under seismic conditions are limited to purely translating, sliding blocks (i.e. Newmark's sliding block method). This dissertation introduces additional non-linear, time-dependent models to predict ultimate displacement in toppling and slumping modes as well. Similarities of the dynamic response of rocking, toppling, and slumping systems are exposed and allow knowledge from the well-established literature of rocking blocks to be leveraged. The parameters of these non-linear models are combined such that mapping of more complex systems to these simple models can be performed. Important findings from these new methods are that the magnitude of seismically-induced displacement is dependent on the size and shape of the block (or failure mass) and the displacement dependent yield accelerations. In addition, by establishing a failure criteria for the different modes of failure, ground motion characteristics (mean period and intensity) can be used to predict the likelihood of failure. Design charts are developed to allow seismic toppling and slumping failures to be integrated into PBEE evaluations or real-time regional assessments.
Download or read book Landslides from Massive Rock Slope Failure written by Stephen G. Evans and published by Springer Science & Business Media. This book was released on 2007-05-17 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amongst the thematic topics discussed are global frequency, impacts on society, analysis of initial rock slope failure, monitoring of rock slope movement, analysis and modeling of post-failure behaviour, volcanic landslides, and influences of massive rock slope failure on the geomorphological evolution of mountain regions. Regional contributions include reports on rockslides and rock avalanches in Norway, western Canada, the Andes of Argentina, the Karakoram Himalaya, the European Alps, the Appennines, and the mountains of Central Asia. Rockslides and rock avalanches in the Central Asian republics of the former Soviet Union are discussed in detail for the first time in an English-language book. These landslides include the 1911 Usoi rockslide, that dammed 75 km-long Lake Sarez, and the 1949 Khait rock avalanche that may have killed up to 28,000 people. Both landslides were earthquake-triggered and both are located in Tajikistan. An additional highlight is a detailed description and analysis of large-scale artificial rock avalanches triggered by underground nuclear explosions during the testing programme of the former Soviet Union.
Download or read book Landslides written by John J. Clague and published by Cambridge University Press. This book was released on 2012-08-23 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, one-stop synthesis of landslide science, for researchers and graduate students in geomorphology, engineering geology and geophysics.
Download or read book Seepage coupled Finite Element Analysis of Stress Driven Rock Slope Failures for Both Natural and Induced Failures written by Thomas Becket Anyintuo and published by . This book was released on 2019 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock slope failures leading to rock falls and rock slides are caused by a multitude of factors, including seismic activity, weathering, frost wedging, groundwater and thermal stressing. Although these causes are generally attributed as separate causes, some of them will often act together to cause rock slope failures. In this work, two of the above factors, seepage of water through cracks and crack propagation due to the after effects of blasting are considered. Their combined impact on the development of rock falls and rock slides is modeled on ANSYS workbench using the Bingham Canyon mine slope failure of 2013 as a case study. Crack path modeling and slope stability analysis are used to show how a combination of crack propagation and seepage of water can lead to weakening of rock slopes and ultimate failure. Based on the work presented here, a simple approach for modeling the development of rock falls and rock slides due to crack propagation and seepage forces is proposed. It is shown how the information from remote sensing images can be used to develop crack propagation paths. The complete scope of this method involves demonstrating the combination of basic remote sensing techniques combined with numerical modeling on ANSYS workbench.
Download or read book Earthquake Induced Landslides written by Yingbin Zhang and published by Springer. This book was released on 2017-07-15 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sheds new light on improved methods for the study of the initiation and run-out of earthquake-induced landslides. It includes an initiation study method that considers tension-shear failure mechanism; an improved, rigorous, dynamic sliding-block method based on dynamic critical acceleration; and a run-out analysis of earthquake-induced landslides that takes account of the trampoline effect, all of which add to the accuracy and accessibility of landslide study. The book includes abundant illustrations, figures and tables, making it a valuable resource for those looking for practical landslide research tools.
Download or read book Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions written by Francesco Silvestri and published by CRC Press. This book was released on 2019-10-22 with total page 5946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions contains invited, keynote and theme lectures and regular papers presented at the 7th International Conference on Earthquake Geotechnical Engineering (Rome, Italy, 17-20 June 2019. The contributions deal with recent developments and advancements as well as case histories, field monitoring, experimental characterization, physical and analytical modelling, and applications related to the variety of environmental phenomena induced by earthquakes in soils and their effects on engineered systems interacting with them. The book is divided in the sections below: Invited papers Keynote papers Theme lectures Special Session on Large Scale Testing Special Session on Liquefact Projects Special Session on Lessons learned from recent earthquakes Special Session on the Central Italy earthquake Regular papers Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions provides a significant up-to-date collection of recent experiences and developments, and aims at engineers, geologists and seismologists, consultants, public and private contractors, local national and international authorities, and to all those involved in research and practice related to Earthquake Geotechnical Engineering.
Download or read book Failure Mechanism and Stability Analysis of Rock Slope written by Ke Zhang and published by Springer Nature. This book was released on 2020-07-02 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents in-depth coverage of laboratory experiments, theories, modeling techniques, and practices for the analysis and design of rock slopes in complex geological settings. It addresses new concepts in connection with the kinematical element method, discontinuity kinematical element method, integrated karst cave stochastic model-limit equilibrium method, improved strength reduction method, and fracture mechanics method, taking into account the relevant geological features. The book is chiefly intended as a reference guide for geotechnical engineering and engineering geology professionals, and as a textbook for related graduate courses.
Download or read book Slope Earthquake Stability written by Yang Changwei and published by Springer. This book was released on 2016-11-30 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins with the dynamic characteristics of the covering layerbedrock type slope, containing monitoring data of the seismic array, shaking table tests, numerical analysis and theoretical derivation. Then it focuses on the landslide mechanism and assessment method. It also proposes a model that assessing the hazard area based on the field investigations. Many questions, exercises and solutions are given. Researchers and engineers in the field of Geotechnical Engineering and Anti-seismic Engineering can benefit from it.
Download or read book Rock Slope Engineering written by Duncan C. Wyllie and published by CRC Press. This book was released on 2017-09-18 with total page 803 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock Slope Engineering covers the investigation, design, excavation and remediation of man-made rock cuts and natural slopes, primarily for civil engineering applications. It presents design information on structural geology, shear strength of rock and ground water, including weathered rock. Slope design methods are discussed for planar, wedge, circular and toppling failures, including seismic design and numerical analysis. Information is also provided on blasting, slope stabilization, movement monitoring and civil engineering applications. This fifth edition has been extensively up-dated, with new chapters on weathered rock, including shear strength in relation to weathering grades, and seismic design of rock slopes for pseudo-static stability and Newmark displacement. It now includes the use of remote sensing techniques such as LiDAR to monitor slope movement and collect structural geology data. The chapter on numerical analysis has been revised with emphasis on civil applications. The book is written for practitioners working in the fields of transportation, energy and industrial development, and undergraduate and graduate level courses in geological engineering.
Download or read book Glissement de Terrain Evaluation Et Stabilisation written by Willy Alvarenga Lacerda and published by Taylor & Francis US. This book was released on 2004 with total page 1810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Slope Stability Analysis written by Gian Paolo Giani and published by CRC Press. This book was released on 1992-01-01 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. It also describes survey and measurement methods to model the behaviour of rock masses.
Download or read book Analysis of Earthquake Induced Slope Failures written by Ivan S. Sandler and published by . This book was released on 1988 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landslides and Engineered Slopes Experience Theory and Practice written by Stefano Aversa and published by CRC Press. This book was released on 2018-04-17 with total page 3375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landslides and Engineered Slopes. Experience, Theory and Practice contains the invited lectures and all papers presented at the 12th International Symposium on Landslides, (Naples, Italy, 12-19 June 2016). The book aims to emphasize the relationship between landslides and other natural hazards. Hence, three of the main sessions focus on Volcanic-induced landslides, Earthquake-induced landslides and Weather-induced landslides respectively, while the fourth main session deals with Human-induced landslides. Some papers presented in a special session devoted to "Subareal and submarine landslide processes and hazard” and in a “Young Session” complete the books. Landslides and Engineered Slopes. Experience, Theory and Practice underlines the importance of the classic approach of modern science, which moves from experience to theory, as the basic instrument to study landslides. Experience is the key to understand the natural phenomena focusing on all the factors that play a major role. Theory is the instrument to manage the data provided by experience following a mathematical approach; this allows not only to clarify the nature and the deep causes of phenomena but mostly, to predict future and, if required, manage similar events. Practical benefits from the results of theory to protect people and man-made works. Landslides and Engineered Slopes. Experience, Theory and Practice is useful to scientists and practitioners working in the areas of rock and soil mechanics, geotechnical engineering, engineering geology and geology.
Download or read book Earthquake Induced Landslides written by Keizo Ugai and published by Springer Science & Business Media. This book was released on 2012-10-25 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismicity is a major trigger for landslides with often devastating effects. The Japan Landslide Society (JLS) therefore organized a meeting fully dedicated to the research area of earthquake induced landslides. The symposium covers all aspects of earthquake-induced landslides including the phenomena occurred in manmade embankments as well as in natural slopes in mountainous areas. In this comprehensive volume on landslide science the JLS presents the Proceedings of this First International Symposium on Earthquake-Induced Landslides, held in November 2012 in Kiryu, Japan.
Download or read book Earthquake Induced Landslides written by Keizo Ugai and published by Springer Science & Business Media. This book was released on 2012-10-25 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismicity is a major trigger for landslides with often devastating effects. The Japan Landslide Society (JLS) therefore organized a meeting fully dedicated to the research area of earthquake induced landslides. The symposium covers all aspects of earthquake-induced landslides including the phenomena occurred in manmade embankments as well as in natural slopes in mountainous areas. In this comprehensive volume on landslide science the JLS presents the Proceedings of this First International Symposium on Earthquake-Induced Landslides, held in November 2012 in Kiryu, Japan.
Download or read book Rockslides and Rock Avalanches of Central Asia written by Alexander Strom and published by Elsevier. This book was released on 2018-05-16 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rockslides and Rock Avalanches of Central Asia: Distribution, Impacts, and Hazard Assessment arms scientists with an inclusive and specialized reference for future studies of large-scale bedrock landslides in Central Asia, a phenomenon that poses a major threat to local communities, infrastructure and industrial facilities. The book covers the Dzungaria, Tien Shan, and Pamir mountain systems that are characterized by arid climates and scarce forestation, and is an ideal reference for scientists searching for data that accurately summarizes bedrock landslides through the analyses of a multitude of case studies that have applications in comparable, global scenarios. Through its relatively low precipitation and good preservation of minor geomorphic features, particularly those formed by past landslides, this region provides opportunities for detailed study of the internal structure of landslide bodies. Summarizes the present-day knowledge of bedrock landslide distribution in the Dzungaria, Tien Shan and Pamir mountains Describes case studies illustrating both general characteristics of large bedrock landslides and other specific features, allowing comparative analysis of numerous case studies Presents the classification of bedrock landslides and related models based on deposits, morphology and internal structures that can be applied to global locations
