Presents papers on mine and mill tailings and mine waste, as well as current and future issues facing the mining and environmental communities. Subjects related to technical capabilities and developments, regulations and environmental concerns are included.

Contents:
Waterjetting fundamentals: Introduction. Terminology. What is a waterjet? Where did waterjets come from? How are waterjets used? Why are waterjets used? What is this book planning on doing?
Design of high pressure delivery circuits: Introduction. Example of energy efficiency; Energy input to the motor; Input power to the pump; Output power from the pump to the water; Output power supplied to the jet at the nozzle; Delivered power at the surface. Pump choices; Triplex and positive displacement pumps; Intensifier designs; Water cannons and ultra-high pressure systems. Power calculations. Pump selection criteria. Transmitting the energy. Nozzle considerations; Nozzle size; Nozzle performance; Nozzle design; Nozzle evaluation techniques; High pressure cutting nozzles; Waterjet cleaning nozzles; Droplet impact; The choice between round and fan-jet nozzles. Supply line and fittings; Component pressure losses; Procedure for evaluating friction loss; Flow straighteners. Delivering the energy. Using the energy. Notes and references.
The use of waterjets in cleaning applications: Introduction. Earlier and competing methods of cleaning; Airborne abrasive cleaning; air abrasive nozzle design and manufacture; Cleaning effectiveness; Angle of impact; Airborne abrasive machining; Abrasive use; Steam powered systems. Low pressure waterjet cleaning. Cleaning tubes, pipes and sewers; Cleaning small tubes; Moleing; Cleaning larger diameter tubes; Sewer cleaning. Parameter control for effective cleaning. Cleaning tanks and large surfaces; Hand-held equipment; Underwater cleaning. Advent of high preesure; Round and fan nozzles revisited; Cleaning radio-active pipes; Runway cleaning. Abrasive jet cleaning systems. Cleaning additives. Underwater applications. Lessons for use. Notes and references.
High pressure industrial waterjet cutting: Introduction. Background. Equipment for industrial applications; Activation valve and catcher; Inlet water treatment. Nozzle and part positioning-robotic use; Robots and their control; Accuracy and precision; Case studies of X-Y cutting. Multi-dimensional cutting; Considerations in the use of industrial waterjet cutting; Explosive material processing; Cut edge quality. Techniques for cutting harder materials; Non-traditional machining; Laser machining; Plasma torch; Electric discharge machining; Electrochemical machining; Ultrasonic machining; Abrasive flow machining; Comparisons of performance. Abrasive water cutting; Nozzle design; Abrasive jet case studies; Operational considerations; Glass cutting. Intermediate pressure abrasive jet cutting. Direct injection of abrasive; DIAjet case study; Underwater applications. Future technology; Waterjet machining; Waterjet assisted machine tool cutting. Notes and references.
Waterjets in civil engineering applications: Introduction. Earth moving applications; Soil removal in California during the gold rush; The extraction of clay and monitor design; Soviet experience in soil removal; Tunnelling in soft material; Reduced flow rate studies. The mechanism of soil removal; Frozen soil and the change in cutting mechanism; Cutting and removal of ice. Applications of waterjets in soil excavation; Excavation of the Bar-Lev line; Soil excavation and barrier walls; Grout walls and artificial pile construction; horizontal hole drilling; Joint and gap cleaning; Soil and turf penetration; Waterjet assisted earth plow. Concrete cutting and hydrodemolition; The initial study; Establishing the parameters; High pressure single pulse units; Continuous high pressure low flow systems; Continuous medium pressure flow systems; Case histories; Injection of abrasive for concrete cutting; Cutting concrete with cavitation; Notes and references.
The use of waterjets in mining: Introduction. Coal mining development; Soviet Developments; Trials in the United Kingdom; Developments in the United States; Higher pressure coal mining research; 450 MPa system for room and pillar coal mining; 330 MPa system for room and pillar coal mining; 70 MPa system for longwall coal mining; 70 MPa system for room and pillar coal mining. Japanese operations; Chinese hydraulic mining; Canadian hydraulic mining experience; German hydraulic mining experience; Polish experiments. Borehole mining. Notes and references.
Waterjet use in rock cutting: Rock disaggregation. Development of water cannons. Very high pressure continuous jets. Mechanisms of material removal; Jet impact on a rock; The effect of equipment parameters; The effect of rock properties. Applications of waterjets in cutting rock. Notes and references.
Waterjet drilling systems: Early drilling development. Waterjet drilling of rock bolt holes. Canadian waterjet drill bit design. Waterjet assisted percussive drilling. Waterjet drilling in coal and adjacent rock. Waterjets in oilwell drilling. Round the corner drilling. Borehole modification. Abrasive waterjet drilling. References.
Jet assisted mechanical cutting: Introduction and definitions. Mechanically assisted waterjet cutting. Waterjet assisted mechanical cutting equipment. Jet assisted cutting of coal. References.
Enhancing waterjet performance: Introduction. Enhancing the delivered jet power; The use of a sheath around a jet; Water chemistry changes; The introduction of long chain polymers. The accumulation of waterjet pressure; Pulsating waterjets; Self-resonating pulsating jets; Focussing multiple jets to generate higher pressures. The generation of cavitation with waterjets; The mechanisms of cavitation attack; ASTM cavitation test; Cavitation sheathing; The stationary specimen test; Cavitation in a flow channel; The Lichtarowicz cell; The travelling specimen test; Applications of cavitating jets; Shock loading. Spark generated jets. The introduction of abrasives into waterjets; The mechanisms of material removal; Ductile material removal; Brittle material removal; Considerations in mixing chamber design; Abrasive jet parameter effects; Choice of abrasives; DIAjet abrasive waterjet cutting; Modelling of abrasive jet cutting. Thermal pre-weakening with waterjets. Comment and references.
Theoretical considerations: Introduction. Jet energy considerations. Early theoretical approaches. Powell and Simpson's theory. Foreman and Secor's theory. Crow's theory. Rehbinder's theory. Energy input & crack growth considerations. References.
Safety, health and medical applications: Introduction. Damaging jet pressures; Possible damage mechanisms; Needle-less injection systems. Other safety considerations. The role of training. Medical applications. Comments and references.

Geochemical methods of prospecting for and evaluation of minerals are applied widely today at all stages of geological exploration. However, geochemical methods of prospecting for many classes of non-metallic minerals have not been elaborated.
This book is a completely revised, updated and expanded edition of the publication by the same authors, which was published in 1987. The contains a collection the latest data on geochemical prospecting for non-metals, which is valuable in view of the anticipated increase of consumption and utilization of non-metallic minerals in the future.
The information on various types of raw material is presented in the following sequence: 1) general data (genetic types, conditions of formation, geological prospecting indications); 2) indicator minerals and elements; 3) geochemical methods of prospecting along dispersion trains and haloes, plus hydrogeochemical and geobotanical methods; 4) primary endogenic haloes; 5) vertical geochemical zonality; 6) methods, stages and sequence of work.

This text presents the most recent research on fracture and damage of concrete and rock. It provides an improved understanding of the basic physical and mechanical principles of fracture mechanics in these materials with a strong view towards applications in construction engineering and mining engineering. It forms the proceedings of the international conference held in Vienna in November 1992. The background to the book comes from three main areas: fatigue and ageing of complex concrete structures have been responsible both for loss of life and for expenditure running into billions of dollars in recent decades; lack of virgin building land and high property values in cities and urban areas have led to more demolition and recycling of concrete structures, and related environmental problems; and more engineering structures are being built on and in rock mass of low quality and difficult terrain. Rock fracture mechanics has matured to a fully recognized discipline and is now being applied to problems of excavation, tunnelling, blasting and anchoring. FDCR Conferences provide a forum for international, interdisciplinary co-operation and exchange of ideas and experience between scienti

This wise, eloquent volume distils the essence of Dr. Jerry Lewis' rich 25-year background in the teaching of psychotherapeutic skills to residents and other professionals - skills that are central to the core identity of the psychiatrist.

Proceedings of the 1988 International Conference on Drilling Wastes, Calgary, Alberta, Canada, 5-8 April 1988.

Mine Design, Planning and Sustainable Exploitation in the Digital Age covers mine planning, design and exploitation taking cognizance of new developments, especially those associated with the Fourth Industrial Revolution and the positive influence that it has, and will have, on the mining industry. It refers to latest best practices with emphasis on the social license to operate and sustainable (green) mining. The book covers surface and underground mining in some detail and addresses relevant associated aspects such as risk management, green mining and the importance of real community relations. It is organized as follows: Surface Mining Underground Soft Rock Mining Underground Hard Rock (Metal/Non-metal) Mining Green and Sustainable Mining It has many relevant photos and figures that help the reader and includes appropriate support design and types commonly used in the various mining methods. Mine Design, Planning and Sustainable Exploitation in the Digital Age is mainly aimed at mining, geological engineering and other undergraduate and postgraduates interested in the mining resources industry. It will also serve as a useful reference book for practitioners in the mining industry who want an easy-to-use book.

This book aims to present an alternative based on natural processes and an environmental approach to post-excavation site management, e.g., post-coal mining heaps. These sites are places where various mineral excavation by-products are collected. Nevertheless, some post-mineral excavation sites are oligotrophic, terrestrial, wetland, and water habitat islands, providing unique biodiversity enrichment in the landscape. These oligotrophic mineral habitats are essential in over-fertilized, eutrophic, agricultural and urban-industry surroundings. Some post-mineral excavation sites are places where the wildlife can develop and support the functional processes of novel ecosystems. Implementing the newest biogeochemical and comprehensive knowledge into urban-industry landscape management will help to establish the ecosystem's processes and environmental functioning. There are several post-industrial sites in Europe where the wildlife areas developed due to natural processes, are becoming wildlife hotspots in densely populated urban-industry areas. In this respect, many of the oligotrophic mineral terrestrial, wetland, and water habitats of anthropogenic origin should not be categorized as environmentally dangerous and undergo economic utility-focused reclamation. Facing the actual environmental constraints of the Anthropocene Epoch, the book's chapters presenting the natural basics and perquisites of the environmental ecosystem mosaics, will be interesting for a broad range of environmentalists (scientists and students), miners, economists, and sociologists.

Rock salt formations have long been recognized as a valuable resource - not only for salt mining but for construction of oil and gas storage caverns and for isolation of radioactive and other hazardous wastes. Current interest is fast expanding towards construction and re-use of solution-mined caverns for storage of renewable energy in the form of hydrogen, compressed air and other gases. Evaluating the long term performance and safety of such systems demands an understanding of the coupled mechanical behavior and transport properties of salt. This volume presents a collection of 60 research papers defining the state-of-the-art in the field. Topics range from fundamental work on deformation mechanisms and damage of rock salt to compaction of engineered salt backfill. The latest constitutive models are applied in computational studies addressing the evolution and integrity of storage caverns, repositories, salt mines and entire salt formations, while field studies document ground truth at multiple scales. The volume is structured into seven themes: Microphysical processes and creep models Laboratory testing Geological isolation systems and geotechnical barriers Analytical and numerical modelling Monitoring and site-specific studies Cavern and borehole abandonment and integrity Energy storage in salt caverns The Mechanical Behavior of Salt X will appeal to graduate students, academics, engineers and professionals working in the fields of salt mechanics, salt mining and geological storage of energy and wastes, but also to researchers in rock physics in general.

The Gulf Drilling Series is a joint project between Gulf Publishing Company and the International Association of Drilling Contractors. This first text in the Gulf Drilling Series presents casing design and mechanics in a concise, two-part format. The first part focuses on basic casing design and instructs engineers and engineering students how to design a safe casing string. The second part covers more advanced material and special problems in casing design in a user-friendly format. Learn how to select sizes and setting depths to achieve well objectives, determine casing loads for design purposes, design casing properties to meet burst, collapse and tensile strength requirements and conduct casing running operations safely and successfully.

- provides a useful historical overview of rope guidance in Poland and other countries. - discusses research on the conveyance's behavior in shafts with rope guidance. - offers a precise description of the technical solution of the retractable guidance system for engineers and constructors - presents a system that one could buy or construct oneself.

This new title in the Juta’s Pocket Companions series will serve as an ideal companion to the Mine Health and Safety Act & Regulations Pocket Statute.

Understanding the Mine Health and Safety Act is derived from the highly regarded Commentary on the Mine Health & Safety Act by Masilo and Rautenbach, the leading South African work on this Act.

The book contains commentary on a variety of sections contained in the eight chapters of the Act, set out in a manner that ensures that discussions are accessible to all without sacrificing detail. All commentary is supported by footnotes containing further references as well as citation of relevant case law.

Contents Include:

• Objects of the Act
• Health and Safety at Mines
• Health and Safety Representatives and Committees
• Tripartite Institutions
• Inspectorate of Mine Health and Safety
• Minister’s Powers
• Legal Proceedings and Offences
• General Provisions Sections 96–106

This book uses a multimethod approach to examine local experience of contemporary mining development in the Peruvian Andes, creating an understanding of the transformations that rural societies experience in this context. Mining is a major component of economic growth in many resource endowed countries, whilst also causing mixed social, cultural, and environmental effects. Most current literature on contemporary mining in Peru is largely focussed on conflict; however, in this text, the author takes a differing approach by examining the experiences of families in the vicinity of Rio Tinto's La Granja exploration copper project, Northern Peru, an area with great significance due to the mining investment and development, which has taken place over the past 25 years. The book first provides a critical discussion about production of space theories, and debates on spatial mobility, highlighting their relevance to understanding large-scale mining developments, especially in the Peruvian Andes. The following chapters analyze spatial transformations mining development has prompted, focusing on four axes: access to space, production, mobility, and representations of space. A comprehensive narrative is constructed drawing on diverse voices and perspectives, including those of family heads and their partners, local leaders, company employees, and social scientists. The book concludes by discussing how the findings challenge some of the current accounts of the social effects of mining developement on rural communities and pose significant implications for sustainable development programs and place-based practices. By taking an interdisciplinary approach, this book will appeal to a wide audience including geographers, social anthropologists, and social scientists interested in the social effects of mining as well as researchers interested in current Latin American Studies and Rural Development.

Mining activities may result in rock mass deterioration and instability that may lead to failure both in underground and open pit mines. Such deterioration represents a safety risk and may result in substantial financial losses. Rock mass response may lead to ground subsidence, fall of ground/caving, inundation, pillar collapse, seismic activities and slope and tailings dam instability. Each response is preceded by warning signs and precursors, which are identified in this book, with a view to providing guidelines for prediction and amelioration of damage to mining structures. Furthermore, case studies of both large scale ground deterioration leading to collapse and geotechnical mine disasters are presented. Identifying risks and monitoring geotechnical precursors and warning signs allows for safe and productive mining.

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.

Coal is the commodity that powered the technologies that made the modern world. It also brought about unique communities marked by a high degree of social solidarity and self-help. Mining was central to working class life, drawing rural populations into industrial labour, but it often took place in picturesque landscapes, so that its black spoil heaps became a central symbol of the degradation of pastoral life by the demands of an extractive industry. Throughout Europe and the USA photographers have pictured the characteristic landscapes of the industry, and continue to do so as strip mining devastates huge areas of land. Not only landscape photography but also documentary, portraiture, photojournalism and art photography have been used in order to portray mines and miners. This book presents three interlinked strands of investigation. The first is the way in which the production of coal created paradigmatic communities grounded in particular landscapes. The second concerns the role of photography in exploring, delineating and critiquing mining communities. This in turn involves an examination of the aesthetic and social characteristics of a number of genres of photography. Lastly, it considers the growth and decline of these sites, the geographic shift of the industry to other places, and the re-presentation of traditional localities through the lens of the heritage industry and industrial tourism.

In the past 13 years since the publication of Longwall Mining, 2nd edition in 2006, although there have been no major changes in longwall mining technology and operations, many incremental developments in the whole system as well as various subsystems of the existing longwall mining operational technologies as detailed in the 2nd edition have been added to this edition. Major developments are automation, and health and safety technology, as well as equipment reliability, thereby greatly increasing productivity and cutting cost. In particular, the longwall system can now run automatically cut by cut forever without operators' intervention provided that the geology allows it. Other health and safety features such as LASC, personal proximity detection, color lighting, automatic shield water sprays and remote shearer control are fully operational. There are more than 7000 sensors installed in current longwall mining systems. The big data obtained and fast communication technology have been fully utilized to improve and solve operational problems in real time. Those features are fully documented in the new edition. In pursuit of high productivity and cutting cost, life cycle management that increases equipment reliability has been implemented by OEM. Automation improvement such as tail-end automatic chain tensioner greatly extends AFC chain's service life. Other incremental improvements including dust and methane controls, entry development, panel design and face move are addressed. Additional operational issues such as extension of panel width and compatibility test are also discussed. Since the last plow longwall mine was closed in 2018, the chapter on plow longwalling has been dropped and in its place Automation of Longwall Components and System is added. Also, a new chapter Longwall Top Coal Caving Mining (LTCC) is added due to its successful application in Australia since 2005. Longwall Mining, 3rd edition will be of interest to professionals and academics in the field of mining engineering specifically, serving both as a reference work and an (under)graduate textbook, but will also interest civil, geomechanical and geological engineers and rock mechanics professionals, as well as coal operators, mining consultants, researchers, equipment manufacturers, and government regulators.

* Constructs a 3-D numerical model which incorporates the persistent and non-persistent faults, a weak interlayer, and the complicated tunnel system.* Simulates the non-linear relations between the joint normal/shear deformations and normal stress obtained from laboratory tests.* Offers 3-D implementation of the sequential excavation, backfilling and supporting procedures.* Incorporates a novel routine to simulate the delayed installation of rock supports.* Specifies the rock mass failure according to the residual state of the material properties instead of using the plastic yielding zones.* Quantifies the safety of rock supports based on the percent of the bond shear and bolt tensile failures.* Provides suggestions for the appropriate support design based on the quantified rock mass mechanical behaviour and the quantified rock support failure.* Makes comparisons between the numerical results and monitored field deformations.

This second edition examines the problems facing the mining industry, and offers practical case studies, as well as new solutions for environmental restoration and remediation. New topics include bioremediation technology, mountaintop surface coal mining, reclamation procedures, environmental impacts of gold mining, mining in different countries worldwide, and the resulting environmental problems. The book is considered a "must have" book for environmental engineers and professionals in the mining industry, geologists, hydrologists, hazardous waste professionals, and academics.

The rapid revolution in modern industry has led to a significant increase in waste at the end of the product lifecycle. It is essential to close the loop, secure resources, and join up the circular economy. This book provides a detailed review of extraction techniques for urban mining of precious metals including gold, silver, and the platinum group. The merits and demerits of various extraction methods are highlighted, with possible suggestions for improvements. The feasibility of hybrid extraction techniques, as well as the sustainability and environmental impact of every process, is explored. Offers a comprehensive review of different techniques used in recycling technology for urban mining of precious metals Describes the concept of urban mining and its correlation with circular economy Discusses feasibility of precious metal extraction and urban mines scope and their potential Explains the subject in-context of sustainability while describing chemistry fundamentals and industrial practices Provides technical flow sheets for urban mining of precious metals with diversity of lixiviant This book is aimed at graduate students and researchers in extractive metallurgy, hydrometallurgy, chemical engineering, chemistry, and environmental engineering.

Corrosion Protection for the Oil and Gas Industry: Pipelines, Subsea Equipment, and Structures summarizes the main causes of corrosion and requirements for materials protection, selection of corrosion-resistant materials and coating materials commonly used for corrosion protection, and the limitations to their use, application, and repair. This book focuses on the protection of steels against corrosion in an aqueous environment, either immersed in seawater or buried. It also includes guidelines for the design of cathodic protection systems and reviews of cathodic protection methods, materials, installation, and monitoring. It is concerned primarily with the external and internal corrosion protection of onshore pipelines and subsea pipelines, but reference is also made to the protection of other equipment, subsea structures, risers, and shore approaches. Two case studies, design examples, and the author's own experiences as a pipeline integrity engineer are featured in this book. Readers will develop a high quality and in-depth understanding of the corrosion protection methods available and apply them to solve corrosion engineering problems. This book is aimed at students, practicing engineers, and scientists as an introduction to corrosion protection for the oil and gas industry, as well as to overcoming corrosion issues.

This book describes all parts of belt conveyors, their functions and different types presented one after the other with necessary illustrations covering all the basic aspects so that the reader can obtain an overall understanding of their operation and implementation within the field of bulk material handling, mining and mineral processing. Dedicated study of this work will also enable engineers to carry out minor repairs on their own without having to wait for maintenance personnel. This is an introductory preliminary book for beginners in the field of bulk material handling, mining and mineral processing, written in lucid, easy-to-understand language, well-illustrated, and with self-explanatory descriptions that do not compromise in maintaining academic standards while dealing with the subject matter. A salient feature of this book is that all the new terminology used to describe the components and their functions has been included and explained. Much of the content of this book has been tested and evaluated positively by graduate and postgraduate students and professional engineers of several bulk material handling plants during training programs over the last twenty-five years in India.

Presenting new technologies in underground coal extraction, with special attention to mine galleries support and maintenance, load mechanism of "massif-support system-safety system" systems, analysis of face equipment for thin coal seams mining and substantiation of rational stoping parameters. Advanced surface mining technologies of coal and ore are discussed in an original form, stability calculations of internal dumps and open-cut faces are presented, as well as examination of land surface subsidence using modern methods of calculation experiments. Special attention is given to the complex mining of mineral resources, such as: iron ore, coal deposits with drilling advance degassing wells, methane extraction from coal and anthropogenic deposits, heat receipt from mine water with help of thermal pumps. The unique geological conditions for mining in Poland and the Ukraine require a new technological approach for mining thin and very thin coal seams with thickness of 1 meter and less, using selective coal extraction methods, leaving rock behind in the mine. Relevant technological solutions are discussed in this volume. Further, technological process control during coal seams underground gasification is described together with pressure-temperature conditions of gas hydrates formation from gaseous mixtures of various content. Substantiation is also given to gas hydrates extraction technologies development and 21st century new pulse technologies of well drilling and a temperature mode of a rock-cutting tool and equipment with cryogenic-gravel filters is examined. Gas extraction processes located in flooded deposits with uniform and macroheterogeneous collectors are presented with the description of an effective methodology of two-subbench technology of ore deposits extraction.

The book is a comprehensive treatment of the application of geotechnical engineering to site selection, site exploration, design, operation and closure of mine waste storage facilities. The level and content are suitable as a technical source and reference for practising engineers engaged both in the design and operational management of mine waste storage facilities and for senior undergraduate and postgraduate students. The thirteen chapters follow the sequence of the life cycle of a waste storage facility (characterization, site selection, geotechnical exploration, environmental aspects, testing and compaction) and also consider the use of mine waste as a construction material. The text is liberally illustrated by both line drawings and photographs, and the theoretical passages are supported by typical test results, worked examples and carefully analysed case histories.