Download or read book Seismic Coal Exploration written by L. Dresen and published by Elsevier. This book was released on 2013-10-22 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient mining of hard coal in deep coal mines using highly mechanized longwall techniques requires information on the geological structure ahead of the operating face. Even minor tectonic faults with throws of only a few metres mean a loss in productivity, as they present severe working problems for underground mining equipment. Because investment costs to install a mechanized face are high, "insurance" in the form of spare capacity by both machine shifts or spare faces is uneconomic. Thus, to reduce mining costs it is essential to delineate the geology prior to mining. Today, the only effective geophysical tool to detect and to map minor faults in front of the coal cutter is in-seam seismics using channel, or so called seam waves. The techniques are well established and successfully applied for more than two decades. In-Seam Seismics covers the entire range of elementary and advanced topics in mathematics, physics and data processing of dispersive channel waves. The results of analogue and numerical modelling provide a thorough understanding of transmission, reflection, recording and interpretation of seam waves and coal seam disturbances. Fire damp proof instrumentation, target orientated underground layouts, processing and interpretation of real data impart the state-of-the-art of in-seam seismics. Selected and well-rounded case histories complete the presentation of in-seam seismics. They can help the mining engineer to come to a decision to plan and to apply in-seam seismics in case of underground mining problems. A clear text, only formulae which are necessary, many carefully designed figures, an extended list of references and a lucid index make it easy for the reader to get acquainted with seam waves or to promote the technique of in-seam seismics.
Download or read book Handbook of Geophysical Exploration Vol 16 Seismic Coal Exploration written by Anton Ziolkowski and published by Pergamon. This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic Coal Exploration In seam seismics written by L. Dresen and published by . This book was released on 1993 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Geophysical Exploration written by L. Dresen and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High resolution Seismic Reflection Techniques for Mapping Coal Seams from the Surface written by C. Melvin Lepper and published by . This book was released on 1976 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A High Resolution Seismic Survey for Coal Exploration written by and published by . This book was released on 1985 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic Exploration for Coal written by and published by . This book was released on 1982 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In seam Seismic Methods in Coal Exploration and Mining written by P. J. Hatherly and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic Refraction Surveys for Coal Exploration in the Homehills Hawkdun and Roxburgh Areas of Central Otago written by M. Broadbent and published by . This book was released on 1982 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In seam Seismic Techniques for Coal Exploration written by and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developments in Geophysical Exploration Methods 1 written by A. A. Fitch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a collection of original papers, each by an expert in his field. They deal with different sectors of recent geophysical development. It may be, at first, difficult to see what else unites them, and how these several technologies can contribute to an integrated exploration process. What brings these writers together is that they have all contributed to the improvement of what comes to the eye of the geophysical interpreter. Some of the improvement is achieved at the data-gathering stage, some of it in processing, and in presentation. For all of this improvement interpreters in general are most grateful. The editor is appreciative in a quite personal way, not only of the advances in technology, but also of the effort in writing which has been made by these busy contributors, and so created this collection. Something can be said here about interpretation and the environment in which it is carried out, since it represents the field where the results of these technical developments are ultimately tested. In the commercial world it is from the geophysical interpreter that management learns the results of a large sector of exploration expenditure, and learns them in a form on which still larger expenditures on later phases of exploration can be based.
Download or read book Seismicity in Mines written by G. Gibowicz and published by Birkhäuser. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent seismological research has focused on processes other than pure shear failure (double-couple) as an alternative mechanism for some types of seismic events. This has been stimulated by what appears to be anomalous focal mecha nisms observed for several earthquakes of possible volcanic nature in the 1980 Mammoth Lakes, California sequence (JULIAN and SIPKIN, 1985; SIPKIN, 1986). Although studies have concentrated on earthquakes associated with magmatic processes, possible non-double-couple seismic failure has been observed, but not widely known, in cases of mine seismicity in the past three decades. Such cases have occurred on a world-wide basis; however, no cases until now have been observed in the United States. The existence of non-double-couple failure in mine seismicity has been controversial as it has been for tectonic/volcanic earthquakes. Several of the benchmark studies of mine seismicity in the deep South African gold mines have resulted in the belief that no fundamental distinction in the source mechanism exists between tectonic earthquakes and rock bursts (MCGARR, 1984); both types of events are the result of pure shear failure. However, the reported cases of implo sional focal mechanisms for mine seismicity continue to increase in number and prolong the controversy. During the summer of 1984, a three-dimensional, high resolution micro earthquake network was operated by Woodward-Clyde Consultants (WCC) in the vicinity of two coal mines beneath Gentry Mountain in the eastern Wasatch Plateau of central Utah.
Download or read book Reflection Seismology written by Kenneth Harold Waters and published by John Wiley & Sons. This book was released on 1981 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Borehole Seismic Methods for Opencast Coal Exploration written by J. Edward Kragh and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Resolution Seismic Exploration for Geologic Faults in Coal Seams written by Marshall Scherba and published by . This book was released on 1977 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Results from Seismic Studies During 1978 for Coal Exploration in Central Otago written by M. Broadbent and published by . This book was released on 1983 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Geology written by Larry Thomas and published by John Wiley & Sons. This book was released on 2012-09-18 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal Geology, second edition, offers a thoroughly revised and updated edition of this popular book which provides a comprehensive overview of the field of coal geology. Coal Geology covers all aspects of coal geology in one volume, bridging the gap between the academic aspects and the practical role of geology in the coal industry. The object of the book is to provide the reader with a with a description of the origins of coal together with the physical and chemical properties of coal and coal petrology before proceeding to cover all areas of coal exploration, production and use. Bridges the gap between academic aspects of coal geology and the practical role of geology in the coal industry Examines historical and stratigraphical geology, together with mining, environmental issues, geophysics and hydrogeology and the marketing of coal Defines worldwide coal resource classifications and methods of calculation Addresses the alternative uses of coal as a source of energy, together with the environmental implications of coal usage Includes improved illustrations including a colour section Offers a global approach covering expanding fields in America, China and India The truly global approach, drawn from the international experiences of the author, recognizes the growing role of coal use in emerging markets. With fully revised coverage of the latest modelling techniques, environmental legislation, equipment and recording methods, the second edition offers a truly invaluable resource for anyone studying, researching or working in the field of coal geology, geotechnical and mining engineering and environmental science.
