Abstract
This paper presented the formulation of a divided linear strain softening model of soft rock using the unconfined compressive strength for incorporation into a numerical analysis code, and applied the model to sequential tunnel excavation analysis. The effectiveness of the model and problems in relation to numerical analysis were discussed. As problems in making analysis, the volumetric change (dilation) during strain softening causes turbulence in the distribution of displacements, and the variations of stress in elements due to stress release during strain softening greatly affect the results of analysis. It was therefore suggested that properly controlling stress variations would produce excellent results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
