... design, especially a better choice in the design of highway in mountain area. damage depth second-excavated tunnel multi-arch tunnel primary lining excavation order rockbolt zhong shihang rock mass tensile strength construction technology main construction technology iv class super...

... Abstract Based on a three-dimensional non-linear constitutive model, this study investigates the anisotropic deformation of a tunnel excavated in jointed rock masses and associate supporting effects of rockbolts. Using a numerical model capable of describing the influence of mechanical...

... rockbolt jointed rock mass continuous model Reinforcement Effect 36 Discussion on the problems in modeling jointed rock reinforced by rock bolts in tunnels S. Sakurai Construction Engineering Research Institute Foundation, Kobe, Japan ABSTRACT In this paper, the author discusses the problems...

... dynamic impact resistance application complementary bolt modeling rockbolt dynamic loading numerical model metals & mining permanent strain strain energy dynamic resistance deformation rockburst breakthrough support steel support loading construction beam element ISRM...