Abstract：
In order to understand the geological conditions in front of working face, to deal with the geological di?
saster caused by mud burst and water flow, to further add additional working face to realize advance parallel heading and sectioned construction and to meet the goal of construction period, taking the Xiaoshanxia tunnel of ZhengzhouWanzhou high speed railway as an example, construction organization and management of rapid construction of parallel heading of karst tunnel are discussed mainly from the aspects of improving the entry conditions, adjusting the construction organization, overcoming the construction difficulties of adverse slope, optimizing the construction scheme and so on.
XIANG Daoyin1 WANG Minghui1 ZHU Jianguo2 LIU Dalin2 ZHANG Qiao1
.Key Techniques for Rapid Construction of Parallel Heading of Karst Tunnel in Chongqing Section of Zhengzhou-Wanzhou Railway[J] MODERN TUNNELLING TECHNOLOGY, 2020,V57(4): 194-200
2020, Vol. 57 