Characteristics of rock discontinuities
WebAmin Abd Al Wahab posted images on LinkedIn WebDec 26, 2015 · The discontinuities in a rock mass usually control its overall behavior. Rock mass deformability, stability of underground excavations, and flow of fluid depend significantly on the intensity, the degree of interconnection, and the characteristics of the fracture network present.
Characteristics of rock discontinuities
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WebAug 5, 2024 · The characteristics of energy liberation, crack propagation, and shear slip during the process of failure and instability of coal-rock parting-coal structures (CRCS) with rough... WebAug 1, 2024 · In rock engineering, the deformation along the joints may result from dynamic loading induced by seismic motions from earthquakes, rock quarrying, and rock blasting. 6 Three types of shear tests for rock discontinuities under dynamic conditions were generally conducted: cyclic (shear reversal), single stick-slip and single high-velocity …
Web1 day ago · However, understanding the stress characteristics of crack initiation and damage under triaxial compression remains still immature. ... and is suitable for studying the anisotropic characteristics of rocks and estimating the crack stress based on velocity anisotropy (Zhang ... Modelling of the effect of discontinuities on the extent of the ... WebSep 3, 2024 · Rock discontinuities may experience complex pre-stress paths, such as high and long-term geostress (loading) and unloading or disturbances caused by excavation. Different initial states lead to different creep behavior in rock discontinuities.
WebJan 14, 2024 · Geological characteristics of the rock mass such as lithology, fracture orientation, and morphology, karst phenomena (caves), ... By this method, 246 discontinuities were measured in the drill holes. Even though the terrain was almost inaccessible, we have done discontinuity mapping, and 48 discontinuities on the … There are two broad types of rock cleavage: fracture cleavage and flow cleavage. … Chapter 2 Theoretical and numerical perspectives and field observations for …
WebApr 12, 2024 · Almost all conventional discrete fracture network (DFN) models embedded within rock masses are discontinuities with zero tensile strength and mean values of …
WebDec 15, 2016 · The characterisation of the discontinuities is conducted by analysing their trace and different methods are possible for that. One option is simply to survey manually the discontinuities by sending people … cheap nokia phone with cameraWebApr 12, 2024 · Almost all conventional discrete fracture network (DFN) models embedded within rock masses are discontinuities with zero tensile strength and mean values of geomechanical parameters. However, the spatial variability and networks of weak and strong potential failure planes and discontinuities have a significant effect on rock … cybernews checkerWebJan 2, 2024 · It was observed that the shear characteristics of rock discontinuities were sensitive to confining and water pressure but not to a temperature below 80 °C. … cyber news 2022WebApr 13, 2024 · Jointed rocks itself have lot of complexity because of its heterogeneous nature due to the presence of joints or discontinuities. Characteristics of joints like joint frequency, orientations and conditions of joints make it different from intact rock. ... These criteria suggested that the uniaxial compressive strength of jointed rocks (σ cj ... cheap nokia phones price listWebwould be considered as discontinuities. The term structural discontinuity encompasses a wide range of localized geologic structures, over a broad range of scales, strain rates, rock types, formation mechanisms, and tec-tonic environments. The most common types of geologic structural discontinuities are listed in Table 1.1. cyber news at harris health systemWebMar 1, 2024 · The findings can contribute to better understanding the failure and fracture characteristics of rock with discontinuities, particularly the interaction of pre-existing discontinuities with stress ... cybernews checker toolWebdiscontinuities usually control the strength, deformation, and permeability of rock masses. Most engineering problems relate to discontinuities rather than to rock type or intact rock … cybernetyx app