Download or read book Rock Indentation written by Chivukula S.N. Murthy and published by CRC Press. This book was released on 2021-08-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focusses on rock indentation and importance of specific drilling/cutting energy as a performance indicator for drilling/rock cutting. It aids in designing of drill bit and cutting pick, through performance evaluation for a given geometry. It further covers stress distribution along three axes in rock during load application, correlation of specific energy with properties of rocks and statistical modeling to generate mathematical equation to estimate the specific energy indentation, including performance prediction by artificial neural network modeling. Presented models can be used to assess the specific energy in rock indentation from the physic-mechanical properties of rocks. Presents synthesis of rock indentation experiments and analyses. Deals with statistical modeling to generate mathematical equations to estimate the specific energy indentation from the rock parameters/properties. Discusses how to find the performance of drill and cutting bits during drilling or cutting operations through indentation test. Covers numerical modeling to explain stress distribution in rock during rock indentation. Includes artificial neural network concepts used in field of rock mechanics. This book is aimed at researchers and graduate students in mining/geological engineering, mechanical engineering.

Download or read book Rock Mechanics as a Multidisciplinary Science written by Jean-Claude Roegiers and published by CRC Press. This book was released on 2020-12-18 with total page 1500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers in the proceedings of the 32nd U.S. Symposium on Rock Mechanics were solicited to address the theme of 'Rock Mechanics as a Multidisciplinary Science'. The major goal was to assemble scientists and practitioners from various fields with interrelated interests in rock mechanics to share their common problems and approaches. The proceedings include three papers related to a special session on 'Lunar Rock Mechanics', as well as 121 technical papers covering areas such as: field observations, in-situ stresses, instrumentation/measurement techniques, fracturing, rock properties, dynamics/seismicity, modelling, laboratory testing, discontinuities/fluid flow, design, wellbore stability, and analysis.

Download or read book Rock Dynamics and Applications State of the Art written by Jian Zhao and published by CRC Press. This book was released on 2013-05-13 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock dynamics studies the response of rock materials and rock masses under dynamic loading conditions. In the last a couple of decades, the development of experimental and computational techniques has been able to capture the progress of fracturing in microsecond steps, allowing the exploration on how the fracture is initiated, propagated and branc

Download or read book Wedge Indentation in Nonporous Hard Rock written by Boliang Gu and published by . This book was released on 1991 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rock Dynamics and Applications 3 written by Charlie C. Li and published by CRC Press. This book was released on 2018-06-18 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock Dynamics – Experiments, Theories and Applications is a collection of scientific and technical papers presented at the Third International Conference on Rock Dynamics and Applications (RocDyn-3, Trondheim, Norway, 26-27 June 2018). The papers in the book reflect the recent developments in experiment and theory as well as engineering applications of rock dynamics. Rock dynamics studies the response of rock and rock masses under dynamic loading and during the state transition from static loading to kinetic movement. It also includes the study of engineering countermeasures to dynamic instability of rock and rock masses. The topics in the book include: - Dynamic theories - Numerical simulation - Propagation of stress waves - Dynamic tests of rock - Stability of underground openings under dynamic loading - Rockburst - Seismic monitoring - Dynamic rock support - Blasting - Earthquake-related rock structure damage, etc. Applications, such as rockburst, dynamic rock support, seismic monitoring, blasting and earthquake-related rock structure damage, are paid special attention in Rock Dynamics – Experiments, Theories and Applications. The papers, from specialists both from mining and tunnelling branches, discuss commonly interested dynamic issues. Their experience and knowledge in the application of rock dynamics are extremely valuable for all academics, engineers and professionals who work with rock dynamics.

Download or read book Mechanics of Cutting and Boring Dynamics and energetics of indentation tools written by Malcolm Mellor and published by . This book was released on 1975 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rock Mechanics In Underground Construction Proceedings Of The 4th Asian And International Rock Mechanics Symposium 2006 With Cd rom written by Chun Fai Leung and published by World Scientific. This book was released on 2006-11-06 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains over 300 papers on rock mechanics and engineering with contributors from all over Asia and many other parts of the world. Seven keynote papers summarize the state-of-the-art in rock engineering including topics such as underground rock caverns. The technical papers cover a wide range of rock mechanics and engineering topics: rock tunnels, caverns, mining, rock slopes and dams, rock blasting, rock burst and failure, rock properties, rock mass, rock joints, and block theory. Numerous valuable rock engineering case studies are also reported.This volume should serve as a useful reference for the engineers and researchers in rock mechanics and rock engineering.

Download or read book Interaction Modeling in Mechanized Tunneling written by Günther Meschke and published by Springer Nature. This book was released on 2023-03-17 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book compiles the research results of the Collaborative Research Center SFB 837, which has been running since 2010 and will end in 2022, with the topic "Interaction Modeling in Mechanized Tunneling". The Collaborative Research Center is funded by the German Research Foundation (DFG) and is currently the world's largest research facility in the field of tunneling. The aim of the publication is to make our scientific findings accessible to the international professional community. The individual chapters deal with all subsystems relevant in mechanized tunneling and their interaction. The latest results of digital planning and real-time tunneling support have been included.

Download or read book Failure of Rock Under Normal Wedge Indentation written by Lixian Chen and published by . This book was released on 2003 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ENGINEERING IN ROCKS FOR SLOPES FOUNDATIONS AND TUNNELS written by T. RAMAMURTHY and published by PHI Learning Pvt. Ltd.. This book was released on 2014-01-01 with total page 779 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing developmental activities as diverse as the construction of dams, roads, tunnels, underground powerhouses and storage facilities, petroleum exploration and nuclear repositories, a more comprehensive and updated understanding of rock mass is essential for civil engineers, engineering geologists, geophysicists, and petroleum and mining engineers. Though some contents of this vast subject are included in under-graduate curriculum, there are full-fledged courses on Rock Mechanics/Rock Engineering in postgraduate programmes in civil engineering and mining engineering. Much of the material presented in this book is also taught to geology and geophysics students. In addition, the book is suitable for short courses conducted for teachers, practising engineers and engineering geologists. This book, with contributions from a number of authors with expertise and vast experience in various areas of rock engineering, gives an in-depth analysis of the multidimensional aspects of the subject. The text covers a wide range of topics related to engineering behaviour of rocks and rock masses, their classifications, interpretation of geological mapping of joints through stereographic projection, in situ stress measurements, laboratory and field tests, stability of rock slopes, foundations of structures, including dams and support systems for underground excavations. The Third Edition of the book is further enriched with the addition of a number of case histories in which the analyses and designs were carried out by adopting rock mass parameters as per RMR, Q or GSI. The consequence of such an approach is critically examined. With the adoption of parameters from joint factor, excellent performance prediction has been demonstrated for anisotropic rocks and tunnel. Various expressions developed for Kn and Ks for different conditions are included for adoption in numerical analyses. When dilatancy component is separated, the scale effect on shear response is insignificant. This edition provides a comprehensive understanding of rock mass response and enables students to tackle rock engineering problems more confidently and realistically, and therefore it will be of immense benefit to students, teachers, professionals and designers alike.

Download or read book Modelling Rock Fracturing Processes written by Baotang Shen and published by Springer Science & Business Media. This book was released on 2013-10-07 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text book provides the theoretical background of rock fracture mechanics and displacement discontinuity methods used for the modelling of geomechanical problems. The computer program FRACOD is used to analyse the fracture problems, assessing fracture initiation and propagation in tension (Mode I), shear (Mode II) and mixed mode I and II of solid intact or jointed geomaterials. The book also presents the fundamentals of thermo-mechanical coupling and hydro-mechanical coupling. Formulations of multiple regional mechanical, thermal and hydraulic functions, which allow analyses of fracture mechanics problems for structures made of brittle, rock-like materials, are provided. In addition, instructive examples of code verification and applications are presented. Additional material: The 2-D version of the FRACOD program, a manual on the program and a wealth of verification examples of classical problems in physics, mechanics and hydromechanics are available at http://extras.springer.com. A large number of applications related to civil, mining, petroleum and environmental engineering are also included. - The first textbook available on modelling of rock fracture propagation - Introduces readers to the fundamentals of rock fracturing - Uses a modern style of teaching with theory, mathematical modelling and applications in one package - The basic version of the FRACOD software, manual, verification examples and applications are available as additional material - The FRACOD program and manual enable the readers to solve fracture propagation problems on their own --------------------------- Ki-Bok Min, Department of Energy Resources Engineering, College of Engineering, Seoul National University, Korea “Challenging rock engineering applications require extreme conditions of stress, temperature and hydraulic pressure resulting in rock fracturing to a various extent. The FRACOD is one of few computer codes available in engineering rock mechanics that can simulate the initiation and propagation of fractures often interacting with natural fractures. Its capability has been significantly enhanced to include the hydraulic and thermal fracturing with concerted interaction from multi-national research and industry partners. My experience with the FRACOD is very positive and I am certain that its already-excellent track record will expand further in the future."

Download or read book Rock Mechanics written by Priscilla P. Nelson and published by . This book was released on 1994 with total page 1208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rock Mechanics Contributions and Challenges written by W. Hustrulid and published by CRC Press. This book was released on 2020-12-17 with total page 1085 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theme of the 31st US Symposium on Rock Mechanics is 'Rock Mechanics contributions and challenges', having as objective the examination and quantification of the progress that has been achieved in addressing the major practical challenges facing the science of rock mechanics and mine design. The 124 papers included in the proceedings cover areas such as: experimental studies (laboratory and field); conceptual, analytical, and numerical modeling; design and construction methods. 35 papers deal with practical mining problems and include information on rock reinforcement technology, blasting, rock bursts, open pit mining, remote sensing and borehole geophysics, mechanical fragmentation, and subsidence. Areas emphasized are coal and metal mine design problems. Other papers deal with the newest computer models, new instruments, fracture mechanics, new laboratory testing techniques, and in situ testing.

Download or read book Damage and Fracture of Heterogeneous Materials written by Leon L. Mishnaevsky Jr and published by CRC Press. This book was released on 1998-01-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work examines problems, particularly in mining and civil engineering, related to the destruction of heterogenous materials. It details the physical mechanisms of destruction, methods of damage and fracture modelling, and the application of models to the improvement of drilling efficiency.

Download or read book The ISRM Suggested Methods for Rock Characterization Testing and Monitoring 2007 2014 written by R. Ulusay and published by Springer. This book was released on 2014-07-25 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of ISRM suggested methods for testing or measuring properties of rocks and rock masses both in the laboratory and in situ, as well as for monitoring the performance of rock engineering structures. The first collection (Yellow Book) has been published in 1981. In order to provide access to all the Suggested Methods in one volume, the ISRM Blue Book was published in 2007 (by the ISRM via the Turkish National Group) and contains the complete set of Suggested Methods from 1974 to 2006 inclusive. The papers in this most recent volume have been published during the last seven years in international journals, mainly in Rock Mechanics and Rock Engineering. They offer guidance for rock characterization procedures and laboratory and field testing and monitoring in rock engineering. These methods provide a definitive procedure for the identification, measurement and evaluation of one or more qualities, characteristics or properties of rocks or rock systems that produces a test result.

Download or read book Information Circular written by and published by . This book was released on 1985 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Discrete Element Modeling of Tool rock Interaction written by Haiying Huang and published by . This book was released on 1999 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study on discrete element modelling of tool-rock interaction focuses on establishing scaling laws between the pheomenological parameters of a material and the properties of a discrete disc assembly, and on applying the discrete element method to analyze failure mechanisms in indentation and cutting of rocks. The discrete element code PFC2D is employed to carry out this research. The scaling laws are constructed to determine the elastic constants, the compressive and tensile strengths ơc and ơt and the toughness Ktc of the disc assembly from the micro-scale parameters (e.g., contact stiffnesses, shear and normal bond strengths Ts, Tn, etc.). The analysis is conducted using dimensional analysis and numerical uniaxial and biaxial tests. The numerical results indicate that the bond strength ration Ts/Tn, different types of materials such as metals and rocks can be modelled. An analytical expression for the toughness of a regular square packing assembly is derived. The solution can be generalized to the case of an irregular assembly. For a mixed mode of failure involving both damage and crack propagation, the mean particle radius R is imposed by material properties and is lost as a discretization parameter. The identation and cutting processes are then simulated with particle assemblies having rock-like properties. The dual failure mechanism observed in rock indentation and cutting experiments are reproduced in numerical simulations. The numerical tests validate the concept that only a ductible failure is caused by indentation (i.e., no crack initiates as the damaged zone grows) if a scaled flaw length [...] is small. The transition from a ductible to a brittle mode of failure in the cutting process is also controlled by a length, a critical depts of cut d* proportional to (Ktc/ơc)2. The analysic of the contact on the cutter face reveals that a multi-directional flow mechanism exists for the solide ahead of the cutter. Due to the divided flow, the total force inclination on the cutter depends on the rake angle and is not a measure of the interfacial friction angle between the rock and the cutter.