ISBN: 9787564649777 - 【众星图书精品】褐煤露天矿端帮开采支撑煤柱与边坡稳定性的互馈机制研究 中国矿业大学出版社 王东,姜聚宇,李广贺 著 工业技术其它 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2022-08-01 Pages: 128 Language: Chinese Publisher: China University of Mining and Technology Press After the large-scale open-pit coal mine was mined. a large amount of stranded coal was buried under the side walls and could not be recovered. The development of end-side mining technology provides a new method for the recovery of retained coal. At this stage. there are few studies on the instability mechanism of supporting coal pillars. calculation methods of slope stabili.…