Application of Advance Geologic Prediction to the Observational Construction of Railway Tunnels
(1 China Railway Southwest Research Institute Co. Ltd., Chengdu 611731; 2 Key Laboratory of Karst Collapse Prevention, Chinese Academy of Geological Sciences, Guilin 541004; 3 China Railway No.5 Engineering Group Co. Ltd., Changsha 410116)
Abstract：
Because of the complicated geological conditions of tunnels, the geological conditions determined in preliminary investigation and design are often different from those found during actual excavation, which cannot meet the requirements for accurate, real-time geological information for tunnel construction. In this paper, the Xingutian tunnel is taken as a project example to introduce the concept of dynamic design applied in railway tunnel construction. Combining the advance geologic prediction technique with geological field surveys, the classifications of surrounding rocks in front of the tunnel can be modified in time, and the original design option can be adjusted dynamically, allowing the corresponding construction and supporting methods to be adjusted in time so as to ensure the safety and economy of construction.
LIAO Yan-Kai-1,
Dai-Jian-Ling-2,
WU Zhi-3 etc
.Application of Advance Geologic Prediction to the Observational Construction of Railway Tunnels[J] MODERN TUNNELLING TECHNOLOGY, 2015,V52(1): 197-202
2015, Vol. 52 