Block caving geomechanics book

Investigating block caving geomechanics using seismic spacetime sequences and virtual reality scientific visualization conference paper pdf available june 2015 with 1,087 reads how we. Caving is a mining method which is of growing interest to companies concerned with the exploitation of massive ore deposits, because of its low cost. Ted also contributed greatly to the furthering of knowledge in both the. Geomechanical evaluation of caving macroblock options at. A new mesh is recreated at each step to compute the displacement field. Block caving system, panel caving system and mass caving system. Block caving geomechanics s mining strength of materials. Numerical analysis of block caving induced instability in. Julius kruttschnitt mineral research centre massmin 2004 2004. Description download block caving geomechanics s free in pdf format. The growth of fractures around an undercut of a block cave is simulated. The drawbells serve as a place for caving rock to fall into.

However the body of theoretical and practical knowledge of the factors controlling the caving process, particularly in competent rock masses, is limited, and the economic risk in developing a. Please click button to get block caving geomechanics book now. Pdf investigating block caving geomechanics using seismic. Secondary fragmentation the fragmentation produced in caved ore or rock during residence in the ore column and.

Block cave mining techniques the most commonly used cave mining technique is block caving. Abstract block caving is a mining operation method where taking advantage of the gravity forces, the ore is fragmented. A finite element based approach is used, in which fractures are represented as nonplanar 3d surfaces that grow in response to boundary stresses and interaction. Javier ubilla graduate student, rensselaer polytechnic institute, usa. Caving underground mining methods longwall, sublevel caving. Professor zobacks book will be a valued guide and reference to geoscientists and engineers.

Villegas vcpcodelco, national copper corporation of. This material is intended for use in lectures, presentations and as handouts to students, and is provided in power point format so as to allow customization for the individual needs of course instructors. A transition from a large open pit into a novel macroblock variant block. Definitions primary fragmentation the fragmentation defined by the blocks in the vicinity of the cave back as they separate from the cave back when the undercut is mined and caving is initiated. Books, images, historic newspapers, maps, archives and more. Block caving is a largescale mining method that is particularly useful for mining lowgrade or disseminated ore bodies which are at too great a depth to be exploited through opencast mining. Geotechnical analysis of gravity flow during block caving ramon verdugo professor of geotechnical engineer ing, university of chile, chile. In block caving, a large section of rock is undercut, creating an artificial cavern that fills with its own rubble as it collapses. Download caving 2010, second international symposium on blck and sublevel caving. Download block caving geomechanics s free in pdf format.

However, despite these advances the successful development of a block caving project relies heavily on many non geotechnical factors such as commodity price, exchange rate and development exploration timing. Engineering, melbourne, 57 june 1979 block caving geomechanics. Block caving method is employed generally for steeply dipping ores, and thick sub horizontal seams of ore. Brown date 2007 publisher julius kruttschnitt mineral research centre, the university of queensland pub place indooroopilly, qld edition 2nd ed volume jkmrc monograph series in mining and mineral processing. Geomechanics in soil, rock, and environmental engineering should appeal to students in their final undergraduate course in geomechanics or masters students, and should also serve as a useful reference to practitioners in the field of geomechanics, reflecting the authors background in. Proposed integration to the actual block cave mine planning process. Largescale simulations of gravity flow in block caving. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. Laubscher introduction cavemining refers toallmining operations in whichtheorebody cavesnaturally after undercutting andthecavedmaterial isrecovered through drawpoints. Block caving geomechanics university of queensland. Cavingisthelowestcost underground mining method provided. The international caving study stage 1 19972000 by et brownbuy. T brown 2 want to read published 2003 by julius kruttschnitt mineral research centre, the university of queensland in indooroopilly, qld.

In addition, it contains valid field examples from around the world to demonstrate concepts. Similarly block caving geomechanics makes available the knowledge. Caving geomechanics 377 figure 7 layout of choke mass blast caving m e t h o d 14. The chuquicamata transition project is an example of the fact that there are no recipes or cook books in cave mining as well as no easy answers the first law of block caving geomechanics by brown 2007b. Characterisation of block cave mining secondary fragmentation. Block caving is an underground mining method that enables the profitable extraction of massive lowgrade with knowledge of mine geometry excavation sequence newcrest ridgeway deeps. International journal of rock mechanics and mining. Writing the introduction to a special edition of the transactions of the u.

The reason for this is the fact that the length and width of the blocks have a great. One of the most important factors to consider in block caving systems is the size of the blocks length and width. Investigating block caving geomechanics using seismic space. This novel approach generates one layout that is optimal over all realisations. The quest to discover the deepest place on earth by james m. Mar 15, 2017 block gravity caving is a bulk underground mining method, which allows large lowgrade deposits to be mined underground. This publication seeks to build upon that knowledge base and further articulate the more recent advances in the science associated with caving methods.

Fundamentals of block caving geomechanics may 59 2008. In contribution, the iom was the committee on educating public health professionals for the american accomplishment. Modelling of primary fragmentation in block caving mines. Block caving geomechanics, et brown shop online for. All books are in clear copy here, and all files are secure so dont worry about it. The 1990s was a decade of considerable interest in block caving, with the establishment in 1997 of the international caving block study, and the resultant publication of block caving geomechanics. This book records in part the results of the first phase of this study which was conducted as a collaboration of the jkmrc, the itasca consulting group, and a.

Woodruff this paper deals with the stresses which are involved in the fracturing of ore, and. This site is like a library, you could find million book here by using search box in the widget. International symposium on block and sublevel caving. Block caving is used to mine massive steeply dipping orebodies typically low grade with high friability. Block caving is a gravitybased underground mining method that involves breaking up the rock mass located at depth into pieces. Some remaining challenges in the four theme areas discussed are also identified.

Download block caving geomechanics erickson motors. A finite element discrete element approach vyazmensky a. International caving study 19972004 pdf download 1959. Numerical modelling of surface subsidence associated with. This method is particularly suitable for lowgrade minerals or with disseminated mineralization. Investigating block caving geomechanics using seismic.

Copyright 2010, australian centre for geomechanics acg, the. A catalogue record for this book is available from the british library. Using numerical modelling to represent parameters affecting cave. Block caving geomechanics s free ebook download as pdf file. As a former chairman of the us national rock mechanics group and a us delegate to isrm. Fast forward to the caving 2010 conference, and professor gideon chitombo of the university of queenslandwho was the project manager for the block. This research represents a valuable contribution to block caving geomechanics and is a major step forward in the understanding of complex block caving subsidence phenomena, paving the way to more reliable assessment. The book contains all that one needs to know about reservoir geomechanics. The block caving geomechanics monograph, published in 2003, was extremely well received and deservedly lauded by practitioners in both the mining and geomechanics communities. Largescale simulations of gravity flow in block caving papers. Use of digital image processing techniques to characterise block caving secondary fragmentation and implications for a proposed. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. What algorithms can take given to belong similar download block year, book, power, and image. Brown, 9781741120004, available at book depository with free delivery worldwide.

Over the last 20 years there have been considerable advances in geotechnical techniques used in the design of block caves. However, formatting rules can vary widely between applications and fields of interest or study. Caving geomechanics is a typical example of rock mechanics being a data limited. Thisincludes blockcaving, panelcaving, inclineddrawpoint caving, and frontcaving. An outcome of the international caving study now renamed mass mining technology and run through the sustainable. Block caving is an underground mining method that enables profitable extraction of massive, lowgrade orebodies, provided orebody geometry, size and competence quality favors caving. An undercut with haulage access is driven under the orebody, with drawbells excavated between the top of the haulage level and the bottom of the undercut. Stress intensity factors are computed around fracture tips using a technique that. The use of block caving has increased worldwide and is expected. Cave mining are called all those mining operations where the orebody caves naturally after undercutting and then it is retrieved through a grill of drawpoints kvapil, 1982. Numerical modelling of surface subsidence associated with block cave mining using a finite element discrete element approach. The material introduced in chapter 3 was published in 2015 in the proceedings of the 49th us rock mechanics geomechanics symposium san francisco, u. The australian centre for geomechanics looks forward to hosting the fourth international symposium on block and sublevel caving in vancouver in septemberoctober 2018. However the body of theoretical and practical knowledge of the factors controlling the caving process, particularly in competent rock masses, is limited, and the economic risk in developing a caving mine can therefore be higher than one would like.

Geomechanics in soil, rock, and environmental engineering should appeal to students in their final undergraduate course in geomechanics or masters students, and should also serve as a useful reference to practitioners in the field of geomechanics, reflecting the authors background in both industry and academia. Proceedings of the second international symposium on block and sublevel caving, 2022 april 2010, perth, australia, yves potvin, australian centre for geomechanics, commonwealth scientific and industrial research organization australia, curtin university of technology, university of western australia. The international caving study stage 1 19972000, 2003. Julius kruttschnitt mineral research centre, the university of queensland, 2002. Each book is designed as an integrated approach to a particular topic, written by top. The university is compared of merchants in academic picture. Ebook block caving geomechanics as pdf download portable. The use of the block cave mining method is increasing in popularity as it is the lowest cost underground mining method and it enables large production rates. The method has application, for ex ample in sulfide deposits. It reflects the outcomes of the international caving study ics stage i, including the block cave manual laubscher 2000 but also contains chapters on several topics that were not. Numerous and frequentlyupdated resource results are available from this search. The australian centre for geomechanics looks forward to hosting the fourth international symposium on block and sublevel caving.

This book is certain to become a standard for every practicing mining engineer and student alike. An outcome of the international caving study now renamed mass mining technology and run through the sustainable minerals institute of the university of queensland carried out in the period 19972004 by the julius kruttschnitt mineral research centre, the university of queensland, brisbane, australia, and the itasca consulting group, inc. Ted also contributed greatly to the furthering of knowledge in both the industry and academic circles by sitting on numerous organising committees and editorial boards for a wide range of conferences, symposia, and journals. The concepts and technical terms used in the book are easy to understand and readily applicable to solving subsurface problems. Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. Brown, et 2002, block caving geomechanics, julius kruttschnitt mineral. Both of these goals have required the integration of geomechanical aspects of the. Block caving geomechanics issue 3 of jkmrc monograph series in mining and mineral processing. Under this denomination is possible to include, block caving, panel caving, inclineddrawpoint caving, and front caving laubscher, 1994. Geomechanical evaluation of caving macro block options at chuquicamata underground project in chile using threedimensional numerical modelling e. Block caving geomechanics top results of your surfing block caving geomechanics start download portable document format pdf and ebooks electronic books free online rating news 20162017 is books that can provide inspiration, insight, knowledge to the reader. T brown, 2003, julius kruttschnitt mineral research centre, the university of queensland edition, in english. I truly enjoyed reading and learning from the book.

How much is the download block of the exact reforms of the section. Proceedings of the second international symposium on block and sublevel caving, 2022 april 2010, perth, australia, yves potvin, australian centre for geomechanics, commonwealth scientific and industrial research organization australia, curtin university of technology, university of western. This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted. The second section describes underground mining equipment, with particular focus on excavation machinery such as boomheaders, coal cutters, continuous miners and shearers. Block caving geomechanics s mining strength of materials free. Geomechanics in soil, rock, and environmental engineering.