Download or read book Rock Failure Criteria for Design of Underground Structural Supports written by Glenn A. Nicholson and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes an empirical constitutive model for underground excavations in rock which equates the deformation modulus to the ratio of the deviator stress to axial strain. The model requires failure criteria which define both the deviator stress at failure and strain at failure. Available failure criterion allows reasonable estimates of deviator stress for intact rock as well as rock mass. However, a failure criterion for estimating strains at failure for rock does not exist. Thus, this report examines the feasibility of developing a strain-based failure criterion for rock. Stress-strain responses for two rock types, sandstone and granite, were evaluated. Reasonable correlations were found to exist between axial strain at failure normalized with respect to unconfined compressive axial strain at failure and the following: (1) Maximum shear stress normalized with respect to the unconfined compressive strength. (2) Minor principal stress (confining stress) normalized with respect to the unconfined compressive strength. (Author).

Download or read book Support of Underground Excavations in Hard Rock written by E. Hoek and published by CRC Press. This book was released on 2000-01-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The safe and economical construction of tunnels, mines, and other subterranean works depends on the correct choice of support systems to ensure that the excavations are stable. These support systems should be matched to the characterstics of the rock mass and the excavation techniques adopted. Establishing the support requirements, designing support systems and installing these correctly are essential elements in safe underground construction. This is a comprehensive and practical work which also gives access to user-friendly computer programmes which enable the investigation and design of support techniques. Details on how to obtain this software are also included in the book.

Download or read book Rock Support in Mining and Underground Construction written by P.K. Kaiser and published by CRC Press. This book was released on 1992-01-01 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date record of the most recent developments and thinking in the methods, problems and challenges in the field of rock support, including cable bolting, shotcrete in mining, support in rockburst-prone ground, and support design, analysis and applications.

Download or read book High Strength Support for Soft Surrounding Rock in Deep Underground Engineering written by Qi Wang and published by Springer Nature. This book was released on 2020-03-02 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the field of surrounding rock control mechanisms and support technologies in underground engineering, and proposes a high-strength support system to address the complex conditions in underground engineering, such as high stress, extremely soft rocks, fault fracture zone and strong mining activity. It also comprehensively discusses the concept and bearing mechanisms of the supporting system, design calculation methods, field application and key construction technologies. The book describes the design and construction of a large-scale mechanical test system, independently developed by the author for high- strength confined concrete arches, which can also be used to define the mechanism of deformation and failure of confined concrete arches. Further, the book explores the application of the confined concrete support system in underground engineering with complex conditions, and its control effect on soft surrounding rock. The first international book presenting the theory and key technologies of high-strength, confined concrete support, it is a valuable reference resource for design, construction and supervision staff in the field of geotechnical engineering, as well as for teachers, students and researchers.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Rock Mechanics written by John A Hudson and published by Elsevier. This book was released on 2000-06-12 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering rock mechanics is the discipline used to design structures built in rock. These structures encompass building foundations, dams, slopes, shafts, tunnels, caverns, hydroelectric schemes, mines, radioactive waste repositories and geothermal energy projects: in short, any structure built on or in a rock mass. Despite the variety of projects that use rock engineering, the principles remain the same. Engineering Rock Mechanics clearly and systematically explains the key principles behind rock engineering. The book covers the basic rock mechanics principles; how to study the interactions between these principles and a discussion on the fundamentals of excavation and support and the application of these in the design of surface and underground structures. Engineering Rock Mechanics is recommended as an across-the-board source of information for the benefit of anyone involved in rock mechanics and rock engineering.

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 Underground Excavations in Rock written by E.T. Brown and published by CRC Press. This book was released on 1980-06-30 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground Excavations in Rock deals with the geotechnical aspects of the design of underground openings for mining and civil engineering processes.

Download or read book Fundamentals and Applications of Rock Mechanics written by DEB DEBASIS and published by PHI Learning Pvt. Ltd.. This book was released on 2016-03-12 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock mechanics is a first course in the field of mining and geotechnical engineering. Over the last decades, the concepts and applications of rock mechanics have evolved tremendously for understanding the stability and safety of structures made of/on the rock masses. This book elaborates the fundamental concepts of rock mechanics for designing and analysis of structures and excavations for a variety of applications. The text includes a fine blend of theory and worked-out examples and applications, and also emphasises the basics of stress and strain analysis, volume–weight relationship, rock mass classification systems, in situ stress measurements, stresses around underground opening, pillar and support design, subsidence, slope stability, rock failure criteria and behaviour of jointed rock mass. Numerical analysis procedures and interaction between rock bolts and rock masses are also introduced emphasising the mechanics and applications in rock engineering. Besides undergraduate and postgraduate students of civil (including geotechnical), mining and petroleum engineering, the book will also benefit the practicing engineers and researchers, who wish to acquaint themselves with state-of-the-art techniques of rock mechanics and its applications. Overall, this textbook is useful for both elementary as well as advanced learning.

Download or read book The Hoek Brown Failure criterion From theory to application written by Jianping Zuo and published by Springer Nature. This book was released on 2020-01-02 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive coverage of the theory and principle of the Hoek-Brown (HB) failure criterion, methods or guidelines for estimating the HB input parameters, and the methodology of application of the HB criterion in rock engineering projects. It aims to help researchers, engineers and research students who work in the area of rock mechanics and mining engineering. Academics can quickly obtain an overview of the state of the art of the theory and principle of the Hoek-Brown criterion by reading the book before they advance their researches on the topics related to rock failure criteria. Geotechnical engineers can select appropriate Hoek-Brown input parameters for the design and analysis of rock engineering projects with the help of the principles introduced in this book. Research students may use the book as a textbook to learn the principle of rock mechanics related to rock mass properties.

Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 1970 written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 1969 with total page 1816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Reports and Prints of the Senate Committee on Appropriations written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 1969 with total page 1836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Reports and Prints of the House Committee on Appropriations written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1969 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for 1970 written by United States. Congress. House Appropriations and published by . This book was released on 1969 with total page 1402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for 1970 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1969 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1967 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Support in Mining and Underground Construction written by Ernesto Villaescusa and published by CRC Press. This book was released on 2004-09-15 with total page 1270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of ground support is to safely maintain excavations for their expected lifespan. The effectiveness of ground support can be seen both in terms of personnel and equipment safety, and in terms of allowing the most economic extraction. Scientists, practitioners and technology developers have contributed to this volume, which covers rock ma