Upper bound of tunnel face stability using asymmetric yielding
نویسندگان
چکیده
منابع مشابه
An Upper Bound Analysis of Sandwich Sheet Rolling Process
In this research, flat rolling process of bonded sandwich sheets is investigated by the method of upper bound. A kinematically admissible velocity field is developed for a single layer sheet and is extended into the rolling of the symmetrical sandwich sheets. The internal, shear and frictional power terms are derived and they are used in the upper bound model. Through the analysis, the rolling ...
متن کاملProbabilistic Upper Bound Using Linear Cuts
As a direct extension of the structured singular value framework from the worst-case to the probabilistic robustness analysis, probabilistic deenes a probability measure of performance assuming some distribution on the uncertainty. Exact computation of probabilistic is intractable. Standard branch and bound methods with axially aligned cuts had been applied to compute a hard upper bound for pro...
متن کاملStability of upper face height-total face height ratio with increasing age.
A number of investigators, while recognizing that vertical facial dimensions continue to increase throughout adulthood, have commented on the relative constancy of vertical facial proportions during growth. Broadbent (Angle Orthod 7: 209, 1937) claimed that a proportional increase in the size of the segments of the face occurs after deciduous dentition is completed. Brodie (Am J Orthod 26: 741,...
متن کاملMulti-factorial Analysis on Vault Stability of an Unsymmetrically Loaded Tunnel Using Response Surface Method
This study investigated the vault settlement characteristics of an unsymmetrically loaded tunnel which was excavated by annular excavation via core rock support method. Response surface methodology (RSM) was employed to design the experiments, evaluate the results with the purpose of optimizing the value of design parameters for reducing the vault settlement. The parameters such as horizontal d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Underground Space
سال: 2018
ISSN: 2467-9674
DOI: 10.1016/j.undsp.2018.03.001