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RISDeformation Response of an Existing Tunnel to Upper Excavation of Foundation Pit and Associated Dewatering
Publisher: American Society of Civil Engineers
Abstract: Deep excavation clearly impacts existing underlying subway tunnels and threatens their operational safety. The prediction of existing tunnel deformation induced by nearby excavation is a major concern for urban construction. ...
Upper-Bound Solution for Stability Number of Elliptical Tunnel in Cohesionless Soils
Publisher: American Society of Civil Engineers
Conversion Timing of Tunnel Excavation Methods in Upper-Soft and Lower-Hard Stratum Based on Displacement Direction Angle Theory: Case Study
Publisher: American Society of Civil Engineers
Abstract: Zi-Zhi Tunnel is a shallow-buried tunnel, and its geological conditions are generally upper soft and lower hard. Therefore, the designed excavation methods are the center diaphragm method and the bench method. For the ...
Numerical Examination of EPB Shield Tunneling–Induced Responses at Various Discharge Ratios
Publisher: American Society of Civil Engineers
Abstract: This study investigated earth pressure balance (EPB) shield tunneling–induced responses in terms of muck pressure, machine parameters, and surface settlements using an efficient numerical scheme that couples PFC3D and ...
Numerical Examination of EPB Shield Tunneling–Induced Responses at Various Discharge Ratios
Publisher: American Society of Civil Engineers
Abstract: This study investigated earth pressure balance (EPB) shield tunneling–induced responses in terms of muck pressure, machine parameters, and surface settlements using an efficient numerical scheme that couples PFC3D and ...
Deformation Behaviors and Control Measures of Tunnels in Jointed and Altered Granite Rock Mass with High In Situ Stress: A Case Study
Publisher: ASCE
Abstract: Large deformation of the surrounding rock may also occur in hard rock tunnels under certain circumstances. Taking the construction of the jointed and altered granite stratum in the Zangga Tunnel, China, as a case study, ...