Published by China University of Mining and Technology Press, 2019
ISBN 10: 7564636610 ISBN 13: 9787564636616
Language: Chinese
Seller: liu xing, Nanjing, JS, China
US$ 83.25
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Add to basketpaperback. Condition: New. Paperback. Pub Date: 2019-01-01 Pages: 191 Language: Chinese Publisher: China University of Mining and Technology Press. The main contents of this book include: characteristics of the geological conditions of the Shendong mining area and overview of the surface ecological environment. and the characteristics of overlying rock activities in conventional shallow coal seam mining And crack development law. evolution law of water retention performance of water-resistant layer mining and water ret.
Published by China University of Mining and Technology Press, 2018
ISBN 10: 7564642491 ISBN 13: 9787564642495
Language: Chinese
Seller: liu xing, Nanjing, JS, China
US$ 86.00
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Add to basketpaperback. Condition: New. Paperback. Pub Date: 2018-12-01 Pages: 208 Language: Chinese Publisher: China University of Mining and Technology Press Xinjiang. as my country's fourteenth billion-ton coal base. has extensively thick coal seams in the area.?Research on the evolution of overlying strata structure and its control mechanism under repeated mining of extremely thick coal seams focuses on the evolution of overlying strata structure and its stability control under the conditions of large-scale mining space expansi.