,Shallow-buried large-span tunnel,High-voltage pylon,Settlement control," />
Settlement Control Technology for a Shallow-Buried Large-Span Tunnel Beneath a 110 kV High-Voltage Pylon
Abstract There were potential risks of pylon collapse and civilian injuries during the construction of the Guanyinshan tunnel beneath a 110 kV high-voltage pylon which is served as power supplying for the Yue Gang water pipeline project. In order to control surface subsidence, surface grouting, double-layer advance grouting pipes, and double-side-drift seven-step excavation were adopted during construction. In this paper, the stability of the high-voltage pylon is analyzed and a dynamic adjustment of the construction scheme is performed according to monitoring information. This tunnel was driven through under the high-voltage pylon safely and successfully, ensuring the normal water supply to Guangdong province and Hong Kong.
Abstract：
There were potential risks of pylon collapse and civilian injuries during the construction of the Guanyinshan tunnel beneath a 110 kV high-voltage pylon which is served as power supplying for the Yue Gang water pipeline project. In order to control surface subsidence, surface grouting, double-layer advance grouting pipes, and double-side-drift seven-step excavation were adopted during construction. In this paper, the stability of the high-voltage pylon is analyzed and a dynamic adjustment of the construction scheme is performed according to monitoring information. This tunnel was driven through under the high-voltage pylon safely and successfully, ensuring the normal water supply to Guangdong province and Hong Kong.
.Settlement Control Technology for a Shallow-Buried Large-Span Tunnel Beneath a 110 kV High-Voltage Pylon[J] MODERN TUNNELLING TECHNOLOGY, 2013,V50(6): 184-188
2013, Vol. 50 