The paper reviews the design and construction of the long inclined shafts, the deep vertical shaft, the parallel adit and the access adit for the tunnel.
文章介绍了越岭隧道的长斜井、深竖井、平导、横洞的设计和施工情况。
Collapse treatment in section of Hongye-2 Hydroelectric Power Station headrace tunnel downstream of adit No.
红叶二级水电站引水隧洞2号支洞下游塌方段处理。
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