Download or read book Design Practices for Multiple seam Longwall Mines written by Gregory J. Chekan and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Longwall Mining written by and published by DIANE Publishing. This book was released on 1995 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes longwall mining and compares it with other underground mining methods. Describes major changes in the geologic, technological, and operating characteristics of longwall mining over the past decade. Shows how changes lead to dramatic improvements in longwall mining productivity. References for technology and historical development. Charts and tables.

Download or read book Coal written by National Research Council and published by National Academies Press. This book was released on 2007-12-21 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate information describing the amount, location, and quality of the coal resources and reserves be available to fulfill energy needs. It is also important that the United States extract its coal resources efficiently, safely, and in an environmentally responsible manner. A renewed focus on federal support for coal-related research, coordinated across agencies and with the active participation of the states and industrial sector, is a critical element for each of these requirements. Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.

Download or read book Proceedings written by Christopher Mark and published by . This book was released on 2007 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer assisted Mine Design Procedures for Longwall Mining written by Nicholas P. Kripakov and published by . This book was released on 1988 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Circular written by and published by . This book was released on with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analyses of Natural Gases of the United States written by and published by . This book was released on 1993 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1987 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1995 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Practices for Multiple seam Room and pillar Mines written by and published by . This book was released on 1994 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Health and Safety In house and Contract Research and Development in Fiscal Year 1983 written by and published by . This book was released on 1982 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interactions Between Multiple Seam Longwall and Room and pillar Operations written by Gregory J. Chekan and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pillar Design Methods for Longwall Mining written by Christopher Mark and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Design Considerations for Superimposed Longwall Gate Roads written by Gregory J. Chekan and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Subjacent Gob on Longwall Development Mining in the Upper Kittanning Coalbed of South central Pennsylvania written by Eric R. Bauer and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Investigations written by and published by . This book was released on 1991 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: