نوع مقاله : پژوهشی
نویسندگان
1 دانشکدهی عمران و محیط زیست، دانشگاه صنعتی امیرکبیر
2 دانشکده مهندسی عمران و محیط زیست - دانشگاه صنعتی امیرکبیر
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Induced deformations in the excavating time of a tunnel depend on the advancement of the tunnel, rheological properties of the surrounding ground, and the age of the support system installment. In this paper, the analysis of circular tunnels in a hydrostatic stress field for visco-plastic behavior is studied. Using the Mohr-Coulomb yield criterion in such a condition, a new model to predict the time-dependent deformation of the tunnel wall is proposed. As an example, the proposed model is used in an investigational tunnel in
France. Results obtained from the new proposed relationships were compared with numerical analysis using the Flac code.
کلیدواژهها [English]