Published by China University of Mining and Technology Press, 2020
ISBN 10: 7564647051 ISBN 13: 9787564647056
Language: Chinese
Seller: liu xing, Nanjing, JS, China
£ 49.97
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Add to basketpaperback. Condition: New. Paperback.Pub Date:2020-06-01 Pages:93 Language:Chinese Publisher:China University of Mining and Technology Press Deep rock formations have high in-situ stress. complex structures. and developed geological bedding fissures. Therefore. the surrounding rock control of deep soft rock roadways has become a major issue. technical challenge.?The support technology commonly used in ordinary shallow roadways can no longer meet the requirements of deep roadway support.?Research on surrounding rock con.