Rock joint roughness
WebHowever, since roughness parameters of rock joints are scale-dependent and their descriptors change with scale, a systematic investigation has been carried out to … WebLaboratory experiments are performed to explore the shear behavior of bolted jointed rock with different joint roughness. Our results show that using high strength bolts is beneficial to improving the shear strength of the jointed rock, but the high strength of bolts can also lead to the rock fracture, which should be avoided.
Rock joint roughness
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Web1 Oct 1979 · This study experimentally analyzed the influences of surface roughness, shear displacement and confining pressure on nonlinear flow behaviors of fluids through 3D … WebThe presence of discontinuities in the rock mass is extremely crucial in many engineering applications of rock mechanics. The estimation of the joint roughness coefficient (JRC) …
Web20 Jul 2024 · because determining the joint roughness coefficient (JRC) effectively is a key parameter in the shear strength between rock joint surfaces. In this original study, we … Web5 May 2024 · The results demonstrate that the surface roughness of rock joints decreased gradually as the shear displacement increased, and then roughness experienced a …
WebHowever, since roughness parameters of rock joints are scale-dependent and their descriptors change with scale, a systematic investigation has been carried out to understand the effect of scale on the surface roughness of rock joints. A silicon rubber replica, 1000 mm×1000 mm in size, was moulded in-situ from a natural rock joint ... Web20 Nov 2015 · The results reveal that the rock joint roughness estimated by the presented description has a good match with existing roughness methods and displays a wider …
WebA Description for Rock Joint Roughness Based on Terrestrial Laser Scanner and Image Analysis. Scientific Reports, 5(1). doi:10.1038/srep16999 10.1038/srep16999
WebThe shear strength of rock joint is assessed by the MC shear criterion that takes into account the apparent cohesion. This MC model integrating rock joint roughness component is validated against other experimental results from the literature. It is able to accurately predict the peak shear strength of an unbounded rock joint with an average ... cost of living support citizens adviceWebBased on the underground jointed rock of the Huangdao water sealed oil depot in China, the shear failure mechanism of bolted jointed rock is studied through laboratory experiments … cost of living support exeterWeb5.3.2 Joints in hard to very hard rock with stained joint surfaces Joint description Joints in granite (Granite 2C) were tested. These joints were in hard to very hard rock and the joint … breakout during cleanseWeb28 Jan 2008 · However, in these previous studies, the roughness and shear strength of the rock joint have been underestimated especially for relatively high undulated profiles (joint … cost of living support for nova scotiansWeb1 Jan 2014 · Rock joint roughness data obtained from a laser scanner is used in this paper to quantify rock joint roughness. To quantify rock joint surface roughness, several … cost of living support derbyWebRock Joint Roughness Measurement Techniques. Roughness measurement techniques can be placed in two groups (contact and non-contact methods) depending on whether or not … cost of living support for staffWebRock Strength Properties and Their Measurement 373 Figure 14-2 shows a slope cut in a strong but closely jointed columnar basalt containing a sub-horizontal joint set and … cost of living support by companies