Technical and Geoinformational Systems in Mining

Author: Genadiy Pivnyak
Publisher: CRC Press
ISBN: 0415688779
Format: PDF, ePub, Mobi
Download Now
New trends of mineral deposits mining in the world consist of intensifying and concentration of mining operations. This is achieved with the help of new technical equipment that is more reliable, having greater service life and more available power. Consideration is given to quantity reduction of stopes and development workings together with their geometrical dimensions growth; also length increase of longwalls and extraction panels is examined. Innovative technologies helping to increase technical-economic indices, extraction volume, working efficiency and safety rules are presented in the book. Specific attention is given to unmanned mineral extraction technologies development using electro-hydraulic management systems of machinery. Plough systems are examined for coal extraction from thin and very thin seams (ranging from 0.8 to 1.2 m of thickness with gaining of stable daily output equal to 2.5-3 thousand tons). Analytical models describing geomechanical interaction between "massif-support" system elements are presented, finite-element method use for research and simulation of stress-strain state around stopes and development workings at coal, ore and other mines are also given. The borehole underground coal gasification technology is introduced with receiving technical gas for electricity generation, and syngas for usage in the chemical industry. Also research of gas hydrates and development of technologies for their extraction from the Black sea bottom is further scrutinized in this book.

Geomechanical Processes during Underground Mining

Author: Volodymyr Bondarenko
Publisher: CRC Press
ISBN: 0415661749
Format: PDF
Download Now
This volume deals with economic aspects of mining companies’ development strategies, various mineral deposits development techniques, imitational modeling of mine workings with rock massif, methane extraction technologies during coal mining, geomechanical processes during plow mining, mining transport importance for mineral extraction, massif strain-stress state management using non-explosive destructing materials, and surface mining's detrimental influence on the environment. Special attention is paid to alternative ways of mining, such as borehole underground coal gasification for extraction of hardly accessible coal and development of gasification plant and development and use of alternative sources of energy such as gas hydrates and sun energy are also disucssed in this book. This collection of scientific papers will be of interest to mining engineers, engineering technicians, designers, scientific and research personnel, students, postgraduates, and all mining-related professionals working in the coal and ore industry.

Mining of Mineral Deposits

Author: Genadiy Pivnyak
Publisher: CRC Press
ISBN: 1138001082
Format: PDF, Docs
Download Now
In the last decades coal production capacity has increased rapidly and its quality, power and the reliability of equipment has steadily improved. Moreover, stability of production processes can be controlled better. In connection with that, unification of scientific schools focusing on "Mining of deposits" is an integral trend from the viewpoint of technical and technological policy. This collection of papers represents the scientific and technical achievements with regard to mineral deposits mining intensification based on effective use of modern techniques and technologies. Also, specific attention is paid to progressive and innovational technologies in the coal industry of leading countries. Widening the range of mining-geological conditions under which drivage and maintenance of mining activities are carried out, requires application of new constructive decisions. Hence, this collection of papers is focusing on the following topics: results of new equipment introduction; experiments on mutual interaction of roof support elements, protective construction and near-the-contour rock massif; analytical and calculation methods of geomechanical tasks solution; development of gas hydrates and technologies of underground coal gasification; studies on environment protection; economic aspects; management and marketing in mining production, and other important aspects of mineral deposits exploitation.

Global Area Disturbed and Pressures on Biodiversity by Large Scale Metal Mining

Author: Diego I. Murguía
Publisher: kassel university press GmbH
ISBN: 3737600406
Format: PDF, ePub
Download Now
The rising global demand for metals in a context of declining ore grades is driving the opening of new mines and the expansion of existing ones, disturbing substantial land areas (especially by open pits). However, how much land is currently disturbed globally? How much land could be disturbed by metal mining in 2050? This study investigates the global area disturbed by mining of iron, bauxite, copper, gold, and silver for the first time. The first part consists of the calculation of the specific land requirements, i.e. the area newly disturbed caused by the ore extraction at the mine site. The second part addresses the global area disturbed in the year 2011 whereas the third presents scenarios of how such area might evolve until 2050. The last part addresses the current and future pressures on global biodiversity by metal mines and shows possibilities for the future opening of new mines in low biodiversity areas, alleviating pressures in high biodiversity ones. This study presents the findings of the author´s dissertation hoping they are used as a frame to develop policies and incentives to reduce the amount of area directly disturbed by mines and their pressures on biodiversity.

Coal and Peat Fires A Global Perspective

Author: Glenn B. Stracher
Publisher: Elsevier
ISBN: 0444595112
Format: PDF, ePub
Download Now
Coal and Peat Fires: A Global Perspective, Volumes 1–4, presents a fascinating collection of research about prehistoric and historic coal and peat fires. Magnificent illustrations of fires and research findings from countries around the world are featured—a totally new contribution to science. This third of four volumes in the collection, Coal Fires – Case Studies, examines in detail specific coal fires chronicled in a number of locations around the world including Brazil, the Czech Republic, Germany, Malawi, Poland, Russia, Spain, Tajikistan, the United States, Venezuela, and others. Authored by world-renowned experts in coal and peat fires Global in scope—countries from around the world are represented Includes beautiful color illustrations, lively presentations, important research data, and informative videos

Coal and Peat Fires A Global Perspective

Author: Glenn B. Stracher
Publisher: Elsevier
ISBN: 9780080931630
Format: PDF, Kindle
Download Now
Coal and Peat Fires: A Global Perspective is a compelling collection of research conducted by scientists and engineers around the world. The first of four volumes in the collection, Coal – Geology and Combustion, features chapters that discuss the origin of coal and coal fires; mining and use of coal; combustion and coal petrology; environmental and health impacts of coal fires; combustion by-products; geochemical, geophysical, and engineering methodologies for studying coal fires; the control, extinguishment, and political implications of coal fires; and much more. Integrates pioneering coal-fires research, with topical coverage of remote sensing, policymaking, and more Serves as an essential guide to the socio-economic and geo-environmental impacts of coal fires

Coal and Peat Fires

Author: Glenn B. Stracher
Publisher: Newnes
ISBN: 0444594124
Format: PDF, ePub, Docs
Download Now
Coal and Peat Fires: A Global Perspective is a compelling collection of research conducted by scientists and engineers around the world. It presents the scientific and industrial communities as well as the interested lay reader with studies about prehistoric as well as historic coal and peat fires and magnificent illustrations of such fires and related research from countries around the world-a totally new contribution to science. The second of four volumes in the collection, Photographs and Multimedia Tours features stunning photographs from around the world, including Australia, Canada, Northern China, India, Borneo, Italy, Poland, Portugal, Russia, the United States, and more. This essential reference also includes a companion website with a collection of slide presentations and videos about coal and peat fires. Authored by world-renowned experts in coal and peat fires Global in scope-countries from all of the world are represented Beautiful full-color illustrations and online materials including research data banks, an interactive online world map of coal and peat fires, multi-media presentations, and videos bring the contents to life

Surface Mining Second Edition

Author: Bruce A. Kennedy
Publisher: SME
ISBN: 9780873351027
Format: PDF, ePub, Mobi
Download Now
This SME classic is both a reference book for the working engineer and a textbook for the mining student. This hardcover edition gives a brief history of surface mining and a general overview of the state of surface mining today--topics range from production and productivity to technological developments and trends in equipment. This extremely useful text takes the approach that exploration and mining geologists must be expert in a number of fields, including basic finance and economics, logistics, and pragmatic prospecting. Readers will find material on all these topics and more. The book's nine chapters include: Introduction, Exploration and Geology Techniques, Ore Reserve Estimation, Feasibility Studies and Project Financing, Planning and Design of Surface Mines, Mine Operations, Mine Capital and Operating Costs, Management and Organization, and Case Studies. The book is fully indexed.

Progressive Technologies of Coal Coalbed Methane and Ores Mining

Author: Volodymyr Bondarenko
Publisher: CRC Press
ISBN: 1138026999
Format: PDF, ePub
Download Now
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.