Download or read book Thick Seam Mining Problems and Issues written by T. N. Singh and published by . This book was released on 1992 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thick seam Mining in the Western United States geological Considerations written by Donna L. Boreck and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of U S underground thin seam mining potential written by United States. Division of Solid Fuels Mining and Preparation and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three Potential Longwall Mining Methods for Thick Coal Seams in the Western United States written by Richard H. Oitto and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thick Seam Mining by Underground Methods written by and published by . This book was released on 1976 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thick Seam Mining Problems and Issues written by Bharat B. Dhar and published by CRC Press. This book was released on 1993-01-31 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprising the proceedings of a symposium on thick seam mining, this work includes coverage of techniques and technology, impact of thick seam mining on environment and ecology, and achievements of ground control. Case histories are also included.
Download or read book Papers Presented at the Symposium on Thick Seam Mining by Underground Methods written by Australasian Institute of Mining and Metallurgy. Central Queensland Branch and published by . This book was released on 1976 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rockburst in Extra Thick Coal Seam Mining Mechanism and Prevention written by Sitao Zhu and published by Springer Nature. This book was released on with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Subsidence from Thick Seam Coal Mining on Hydrology Final Report written by Michael A. Nawrocki and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bureau of Mines contracted a study to estimate what effects the underground mining of thick coal seams in the Western United States would have on the surrounding water resources. Potential coal fields in the Western United States where this type of mining might occur were identified. Foreign literature was searched for studies of effects on hydrology from thick seam underground coal mining ... estimates of the effects of this type of mining on the ground and surface water in the Western States were made.
Download or read book Subsidence Resulting from Mining written by Lewis Emanuel Young and published by . This book was released on 1916 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Results of Research to Develop Guidelines for Mining Near Surface and Underground Bodies of Water written by Clarence O. Babcock and published by . This book was released on 1977 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Multiple Seam Mining Problems and Impace Relative to Western Coal written by Tim Hackett and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The western USA contains approximately 54% (235 billion tons) of the demonstrated reserve base of US coal of which 57% (136 billion tons) must be mined by underground methods. A potentially serious problem in the mining of these underground reserves is that much of the coal lies in multiple seams separated by relatively thin intervals of rock. If the separation between two seams is 30 ft. or less in thickness, ground control problems such as roof-fall, bumps and floor heave make mining of both seams difficult or impossible using current methods. When seam separation exceeds 30 ft. and both seams are mined serious ground control problems can still occur. The variability of seam separations and the lenticular character of western coal seams make estimation of the exact reserve base affected by this problem impossible, but some fields (e.g. Wasatch field, Utah) contain mas many as 6 seams in a 470 ft. interval.”
Download or read book Thick seam Mining in the Western United States geological Considerations written by Donna L. Boreck and published by . This book was released on 1986 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Underground Thick Seam Mining written by Bruce Kenneth Hebblewhite and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mining Methods for Steep Thick Coal Seams written by Stephen D. Hertel and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Mass Response to Longwall Mining of a Thick Coal Seam Utilizing Shield type Supports written by Collin L. Stewart and published by . This book was released on 1977 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
