Abstract Quality of the tunnel secondary lining is related to operation safety of railway. Based on secondary lining construction of the Chongqing section of Zhengzhou-Wanzhou high-speed railway, the construction installation equipment, construction technology and management measures are optimized aiming at the defects of lining quality,especially a series of improvement measures are taken regarding the flatness of primary support, laying of waterproof board, concrete distribution of trolley, quality of concrete vibration, monitoring of vault void, treatment of construction joint, waterstop installation, realizing effective management of construction of secondary lining and standardizing operation standards, improving the construction quality and achieving good construction results.
Abstract：
Quality of the tunnel secondary lining is related to operation safety of railway. Based on secondary lining construction of the Chongqing section of Zhengzhou-Wanzhou high-speed railway, the construction installation equipment, construction technology and management measures are optimized aiming at the defects of lining quality,especially a series of improvement measures are taken regarding the flatness of primary support, laying of waterproof board, concrete distribution of trolley, quality of concrete vibration, monitoring of vault void, treatment of construction joint, waterstop installation, realizing effective management of construction of secondary lining and standardizing operation standards, improving the construction quality and achieving good construction results.
ZHANG Jun1 WANG Minghui1,
2 XIANG Daoyin1 ZHANG Qiao1 JIANG Shuping1 LIU Weibang1
.Quality Management Practice of Tunnel Secondary Lining Construction of Chongqing Section of Zhengzhou-Wanzhou High-speed Railway[J] MODERN TUNNELLING TECHNOLOGY, 2020,V57(2): 49-54
2020, Vol. 57 