Abstract:
A underground project is composed of one main passage and several accessory structures, among which the enclosure structure of underground excavation segment adopts bored pile plus steel support and combined lining. The principle of “advance pipe, strict grouting, short footage, strong support, fast closing and frequent measurement” is observed during excavation construction and measures are established for laying of waterproof layer and secondary lining to ensure the construction quality.
WU Kai,GAO Yun-dong,LIU Jian-wei et al. CONTROL ON CONSTRUCTION QUALITY OF TUNNEL SHOTCRETE-BOLT UNDERGROUND EXCAVATION METHOD[J]. Architecture Technology, 2012, 43(6): 497-499.