Download or read book Rockfall Hazard Analysis Using Computer Simulation of Rockfalls written by Timothy J. Pfeiffer and published by . This book was released on 1989 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Fall Engineering written by Duncan C. Wyllie and published by CRC Press. This book was released on 2014-09-24 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock falls can be a public safety issue. This book provides comprehensive information on identification of these hazards, and design and construction of protection methods.Rock Fall Engineering describes first, the theoretical background to rock fall behavior in terms of the impact and trajectory phases of rock falls, and second, how this informati
Download or read book Water Operation and Maintenance Bulletin written by and published by . This book was released on 1993 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Investigation of Contact Models in DEM Simulation of Rockfalls written by Houshin Nejati and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation of rockfall allows us to protect infrastructures and forests along rock slopes against the impacts of rockfall. In this thesis, a computer program based on 3D Discrete Element Method (DEM) is developed by the author for rockfall simulation and fundamental investigation of physics of a rockfall event. Each rock is modeled as a sphere and impact surfaces are generated by numbers of 3D triangles. Contacts in DEM between objects are modeled using a mass-damper model. Different contact models of DEM produce different contact stiffnesses for springs and therefore different contact forces. Since contact forces have essential effect on dynamic behaviour of particles; hence a comparative study is performed to investigate the effect of each contact model on dynamic of rocks contacts. The five chosen contact models are: linear model, Hertz-Mindlin, Ng model, elastic-inelastic power function model and combination of Hertz model and Ng model (Hertz-Ng model). Energy in linear, Hertz-Mindlin, Hertz-Ng and Ng model is dissipated using linear normal and shear dashpots. Also, the coefficient of restitution is a concept that defines the energy level of a rock after contact with a surface. To relate the concept of coefficient of restitution and damping ratio for each contact model, the correlations of damping ratio and coefficient of restitution are determined for contact of a spherical rock and horizontal wall as well as the correlation of coefficient of restitution and damping ratio for sloped walls for linear contact model. An has developed a 2D elastic-inelastic power function for modeling of normal contact of rocks and surfaces. In this research, 3D modeling of this contact model is produced, and the effects of the input parameters on dynamic behaviours of a rock are studied and the correlation between transition force and coefficient of restitution is determined. Finally, for a 3D slope, a sensitivity analysis is performed and the effect of seven input parameters on horizontal travel distance of a rock is investigated. [Show less] You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer Translations powered by LEC.
Download or read book Rockfall Engineering written by Stéphane Lambert and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rockfall Engineering is an up-to-date, international picture of the state of the art in rockfall engineering. The three basic stages of rockfalls are considered: the triggering stage, the motion stage, and the interaction with a structure stage; along with contributions including structural characterization of cliffs, remote monitoring, stability analysis, boulder propagation, design of protection structures an risk assessment. Academic contributions are illustrated by practical examples, and completed by engineering contributions where practical purposes are thoroughly considered. This title is intended for engineers, students as well as researchers.
Download or read book Applications of Photogrammetry for Environmental Research written by Francesco Mancini and published by MDPI. This book was released on 2020-01-24 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a collection of papers focused on recent progress in key areas of photogrammetry for environmental research. Applications oriented to the understanding of natural phenomena and quantitative processes using dataset from photogrammetry (from satellite to unmanned aerial vehicle images) and terrestrial laser scanning, also by a diachronic approach, are reported. The book covers topics of interest of many disciplines from geography, geomorphology, engineering geology, geotechnology, including landscape description and coastal studies. Mains issues faced by the book are related to applications on coastal monitoring, using multitemporal aerial images, and investigations on geomorphological hazard by the joint use of proximal photogrammetry, terrestrial and aerial laser scanning aimed to the reconstruction of detailed surface topography and successive 2D/3D numerical simulations for rock slope stability analyses. Results reported in the book bring into evidence the fundamental role of multitemporal surveys and reliable reconstruction of morphologies from photogrammetry and laser scanning as support to environmental researches.
Download or read book 2016GUIDELINES FOR INVESTIGATING GEOLOGIC HAZARDS AND PREPARING ENGINEERING GEOLOGY REPORTS WITH A SUGGESTED APPROACH TO GEOLOGIC HAZARD ORDINANCES IN UTAH written by Steve D. Bowman and published by Utah Geological Survey. This book was released on 2016-09-21 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of these guidelines for investigating geologic hazards and preparing engineering-geology reports, is to provide recommendations for appropriate, minimum investigative techniques, standards, and report content to ensure adequate geologic site characterization and geologic-hazard investigations to protect public safety and facilitate risk reduction. Such investigations provide important information on site geologic conditions that may affect or be affected by development, as well as the type and severity of geologic hazards at a site, and recommend solutions to mitigate the effects and the cost of the hazards, both at the time of construction and over the life of the development. The accompanying suggested approach to geologic-hazard ordinances and school-site investigation guidelines are intended as an aid for land-use planning and regulation by local Utah jurisdictions and school districts, respectively. Geologic hazards that are not accounted for in project planning and design often result in additional unforeseen construction and/or future maintenance costs, and possible injury or death.
Download or read book Colorado Rockfall Simulation Program written by Timothy J. Pfeiffer and published by . This book was released on 1993 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This rockfall computer program, which simulates rocks tumbling down a slope, predicts the statistical distribution of speed and bounce height, and can be used for locating and designing rockfall mitigation. The model takes into account, slope profile, rebound and friction characteristics of the slope, and spinning energy of the rocks. Spherical, cylindrical and disk shaped rocks can be simulated. At each impact, the slope angle is randomly varied from the nominal value input by the user within the limit set by the maximum probable variation in the slope. Version 3.0 of the Colorado Rockfall Simulation Program is similar to version 2.1 in terms of the operating environment, but additional statistical output has been added and the ability to use metric units has also been added. This manual reflects version 3.0 input and output. The model is recommended as a tool for geologist[s] and engineers responsible for analyzing and mitigating rockfall hazards."--Technical report documentation page.
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 Landslide Risk Assessment written by David Cruden and published by Routledge. This book was released on 2018-05-02 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 25 papers collected together in this volume present comprehensive coverage of all major aspects of landslide risk assessment, including the risk assessment framework, and methods for estimating probability of landsliding vulnerability and risk.
Download or read book Rockfall written by A. Keith Turner and published by Transportation Research Board National Research. This book was released on 2012 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by International Association of Engineering Geology. International Congress and published by . This book was released on 1990 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landslides Analysis and Control written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1978 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together, from a wide range of experience, such information as may be useful in recognizing, avoiding, controlling, designing for, and correcting movement. Current geologic concepts and engineering principles and techniques are introduced, and both the analysis and control of soil and rock-slopes are addressed. New methods of stability analysis and the use of computer techniques in implementing these methods are included. Rock slope engineering and the selecting of shear-strength parameters for slope-stability analyses are covered in separate chapters.
Download or read book Advancing Culture of Living with Landslides written by Kyoji Sassa and published by Springer. This book was released on 2017-05-16 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This volume contains peer-reviewed papers from the Fourth World Landslide Forum organized by the International Consortium on Landslides (ICL), the Global Promotion Committee of the International Programme on Landslides (IPL), University of Ljubljana (UL) and Geological Survey of Slovenia in Ljubljana, Slovenia from May 29 to June 2, 2017. The complete collection of papers from the Forum is published in five full-color volumes. Thisfirst volume contains the following: • Three forum lectures • Background and Content of the Sendai Partnerships 2015–2025 • Contribution from the signatory organizations of the Sendai Partnerships • Landslide Dynamics: ISDR-ICL Landslide Interactive Teaching Tools (LIT T) • Progress of the World Report on Landslides (WRL) • International Programme on Landslides (IPL): Objects, History and List of WCoE/IPL projects • UNESCO-KU-ICL UNITIWIN Network supporting IPL • Landslides: Journal of International Consortium on Landslides • International Programme on Landslides (IPL): WCoEs and IPL Projects • Landslides and Society Prof. Kyoji Sassa is the Founding President of the International Consortium on Landslides (ICL). He is Executive Director of ICL and the Editor-in-Chief of International Journal Landslides since its foundation in 2004. Prof. Matjaž Mikoš is the Forum Chair of the Fourth World Landslide Forum. He is the Vice President of International Consortium on Landslides and President of the Slovenian National Platform for Disaster Risk Reduction. Prof. Yueping Yin is the President of the International Consortium on Landslides and the Chairman of the Committee of Geo-Hazards Prevention of China, and the Chief Geologist of Geo-Hazard Emergency Technology, Ministry of Land and Resources, P.R. China. IPL (International Programme on Landslides) is a programme of the ICL. The programme is managed by the IPL Global Promotion Committee including ICL and ICL supporting organizations, UNESCO, WMO, FAO, UNISDR, UNU, ICSU, WFEO, IUGS and IUGG. The IPL contributes to the United Nations International Strategy for Disaster Reduction and the ISDR-ICL Sendai Partnerships 2015–2025.
Download or read book Sustainable Construction Materials and Technologies written by Yoon-Moon Chun and published by CRC Press. This book was released on 2007-05-31 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction materials industry is a major user of the world’s resources. While enormous progress has been made towards sustainability, the scope and opportunities for improvements are significant. To further the effort for sustainable development, a conference on Sustainable Construction Materials and Technologies was held at Coventry University, Coventry, U.K., from June 11th - 13th, 2007, to highlight case studies and research on new and innovative ways of achieving sustainability of construction materials and technologies. This book presents selected, important contributions made at the conference. Over 190 papers from over 45 countries were accepted for presentation at the conference, of which approximately 100 selected papers are published in this book. The rest of the papers are published in two supplementary books. Topics covered in this book include: sustainable alternatives to natural sand, stone, and Portland cement in concrete; sustainable use of recyclable resources such as fly ash, ground municipal waste slag, pozzolan, rice-husk ash, silica fume, gypsum plasterboard (drywall), and lime in construction; sustainable mortar, concrete, bricks, blocks, and backfill; the economics and environmental impact of sustainable materials and structures; use of construction and demolition wastes, and organic materials (straw bale, hemp, etc.) in construction; sustainable use of soil, timber, and wood products; and related sustainable construction and rehabilitation technologies.
Download or read book Landslides Theory Practice and Modelling written by S.P. Pradhan and published by Springer. This book was released on 2018-06-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, with contributions from international landslide experts, presents in-depth knowledge of theories, practices, and modern numerical techniques for landslide analysis. Landslides are a reoccurring problem across the world and need to be properly studied for their mitigation and control. Due to increased natural and anthropogenic activities, chances of landslide occurrence and associated hazards have increased. The book focuses on landslide dynamics, mechanisms and processes along with hazard mitigation using geo-engineering, structural, geophysical and numerical tools. The book contains a wealth of the latest information on all aspects of theory, practices and modelling tools and techniques involved in prediction, prevention, monitoring, mitigation and risk analysis of landslide hazards. This book will bring the reader up to date on the latest trends in landslide studies and will help planners, engineers, scientists and researchers working on landslide engineering.
Download or read book Terrigenous Mass Movements written by Biswajeet Pradhan and published by Springer Science & Business Media. This book was released on 2012-04-05 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terrestrial mass movements (i.e. cliff collapses, soil creeps, mudflows, landslides etc.) are severe forms of natural disasters mostly occurring in mountainous terrain, which is subjected to specific geological, geomorphological and climatological conditions, as well as to human activities. It is a challenging task to accurately define the position, type and activity of mass movements for the purpose of creating inventory records and potential vulnerability maps. Remote sensing techniques, in combination with Geographic Information System tools, allow state-of-the-art investigation of the degree of potential mass movements and modeling surface processes for hazard and risk mapping. Similarly, through statistical prediction models, future mass-movement-prone areas can be identified and damages can to a certain extent be minimized. Issues of scale and selection of morphological attributes for the scientific analysis of mass movements call for new developments in data modeling and spatio-temporal GIS analysis. The book is a product of a cooperation between the editors and several contributing authors, addressing current issues and recent developments in GI technology and mass movements research. Its fundamental treatment of this technology includes data modeling, topography, geology, geomorphology, remote sensing, artificial neural networks, binomial regression, fuzzy logic, spatial statistics and analysis, and scientific visualization. Both theoretical and practical issues are addressed.
