... that actually occurred and the performance of the remedial measures. metals & mining risk management risk and uncertainty assessment risk assessment mitigation measure colluvium dimension roughness study area mitigation discontinuity effective roughness surface description block size...

... numerical approach roughness material property reinforcement shear crown area rock joint borehole assessment specimen mechanical behavior excavation loading rock mass tunnel stiffness Reinforcement Effect s-wave velocity crosshole test Pacific Rocks 2000, Girard, Liebman, Breeds & Doe...

... ABSTRACT ABSTRACT: A new model of joint shear strength under cyclic loads is proposed. In the model, the joint roughness is divided into two parts: primary roughness and high order roughness. During the cyclic shear, the high order roughness will be sheared off gradually subjected...

... to predict the steady flow of Bingham viscoplastic materials in rectangular fractures with variable aperture and surface roughness. drilling fluid chemistry production control logic & formal reasoning production monitoring drilling fluid selection and formulation Reservoir Surveillance...

... and objective characterization of oriented core discontinuity data. Improvements to the CYL software include three new methods of cluster analysis, incorporation of roughness as well as orientation and spacing as variables, additional visualization modes, and an automated method to split the data set...

... , G 1c , etc.) are related to the roughness of fracture surface (Mandelbrot, Passoja and Paullay 1984; Saouma, Barton and Gamaleldin 1990, Issa, Hammad and Chudnovsky 1993). The first theory that proposed a way to relate the fracture toughness and roughness of crack path within the continuum mechanics...

... ABSTRACT: In this paper, we can clarify the relationship between the shear behavior of natural rock joint and three parameters (joint surface roughness, material strength and effective normal stress) through the direct shear test in laboratory. Based on the results of the shear test, we can...

... joint parameters such as aperture, joint roughness, joint frequency, and dilation under various normal and shear stresses. Then, two kinds of mapping by SVT and SAT which were obtained from the investigation of the dam site are discussed in terms of joint orientation and distribution. Reservoir...

... ABSTRACT ABSTRACT: The paper presents findings of an experimental as well as theoretical/analytical research initiated (a) to quantify joint surface roughness on a plane and then (b) to develop a new peak shear strength criterion for rock joints which has the capability of capturing...