This paper describes the geological investigation and observations associated with drill and blas... more This paper describes the geological investigation and observations associated with drill and blast shaft excavation and mined tunnelling for the construction of a tunnel project in Bukit Timah Granite formation. Kinematic analysis, Stereonet and 3D Isonet analyses were performed based on the geological rock mapping and these were enabled for the validation of the safety factors of potential wedges above the tunnel crown and side walls during excavation. The results of the analysis and support methods are presented in this paper and aimed to be used as an example for deep excavation projects in the future.
This paper describes the geological investigation and observations associated with drill and blas... more This paper describes the geological investigation and observations associated with drill and blast shaft excavation and mined tunnelling for the construction of a tunnel project in Bukit Timah Granite formation. Kinematic analysis, Stereonet and 3D Isonet analyses were performed based on the geological rock mapping and these were enabled for the validation of the safety factors of potential wedges above the tunnel crown and side walls during excavation. The results of the analysis and support methods are presented in this paper and aimed to be used as an example for deep excavation projects in the future.
Uploads
Papers by Wanna Phyo