Isbn: 9787564376598 - 基于bim的长大砂质板岩隧道快速施工及控制爆破技术 闫铁钢[全新正版] 西南交通大学出版社 9787564376598 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2020-09-01 Pages: 273 Language: Chinese Publisher: Southwest Jiaotong University Press for the Wan'an Tunnel with large differences in soft and hard rock quality. uneven weathering. strong magma activity. crisscross fractures. and rock mass cutting and fragmentation . Special geological conditions such as the development of joints and fissures. rock bursts. and engineering difficulties in the construction of long and large tunnels. In order to ensure the construction qual.…