Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Technologies for large cross-section subsea tunnel construction using drilling and blasting method
Highlights Systematic technologies for large cross-section subsea tunnels are proposed. Compound grouting technology for high permeable ground is developed. Elaborate process control method based on tunnel displacement is presented. Active controlling waterproof-drainage system and its design method is proposed. Two case studies are introduced using the proposed technologies.
Abstract This paper reviews the progress made by our research team in the construction of large cross-section subsea tunnels using the drilling and blasting method. Our research on the prevention and control of water inrush during the construction period and the control of water leakage and discharge during the operational period is introduced. It includes a compound grouting technology for high permeable ground, an elaborate process control method for large cross-section tunnels and an active controlling waterproof-drainage system. These achievements were applied to the first two large cross-section subsea tunnels in China, namely the Xiamen Xiang’an Tunnel and the Qingdao Jiaozhou Bay Tunnel. Thereafter, the technical mode of subsea tunnel construction using the drilling and blasting method was established, providing a theoretical basis and systematic technical support for the safe construction of large cross-section subsea tunnels under complex conditions.
Technologies for large cross-section subsea tunnel construction using drilling and blasting method
Highlights Systematic technologies for large cross-section subsea tunnels are proposed. Compound grouting technology for high permeable ground is developed. Elaborate process control method based on tunnel displacement is presented. Active controlling waterproof-drainage system and its design method is proposed. Two case studies are introduced using the proposed technologies.
Abstract This paper reviews the progress made by our research team in the construction of large cross-section subsea tunnels using the drilling and blasting method. Our research on the prevention and control of water inrush during the construction period and the control of water leakage and discharge during the operational period is introduced. It includes a compound grouting technology for high permeable ground, an elaborate process control method for large cross-section tunnels and an active controlling waterproof-drainage system. These achievements were applied to the first two large cross-section subsea tunnels in China, namely the Xiamen Xiang’an Tunnel and the Qingdao Jiaozhou Bay Tunnel. Thereafter, the technical mode of subsea tunnel construction using the drilling and blasting method was established, providing a theoretical basis and systematic technical support for the safe construction of large cross-section subsea tunnels under complex conditions.
Technologies for large cross-section subsea tunnel construction using drilling and blasting method
Sun, Zhenyu (Autor:in) / Zhang, Dingli (Autor:in) / Fang, Qian (Autor:in)
14.04.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Improving drilling and blasting operations in tunnels of large cross section
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