Stress arching effect during the excavation of broken surrounding rock in underground engineering has an important influence on stability after excavation. To determine stress horizontally layered jointed mass, characteristics mass is analyzed this study by using a series numerical tests. The formation mechanism arch revealed through comparison voussoir beam structure and theoretical analysis m...

A technique for modelling arbitrary discontinuities in nite elements is presented. Both discontinuities in the function and its derivatives are considered. Methods for intersecting and branching discontinuities are given. In all cases, the discontinuous approximation is constructed in terms of a signed distance functions, so level sets can be used to update the position of the discontinuities. ...

It is of great importance to consider long-term stability of rock mass around the openings of underground structure, during design, construction and operation of the said structures in rock. In this context, three methods namely, empirical, analytical and numerical have been applied to design and analyze the stability of underground infrastructure at the Siah Bisheh Pumping Storage Hydro-Electr...