WebTHE SHEAR STRENGTH OF REINFORCED ROCK JOINTS The evaluation of the shear strength of rock joints, reinforced by means of steel dowels, by both experimental measurements and numerical modelling with the aim of determining a provisional tool for optimization of dowel design is presented. WebMar 3, 2024 · The shear strength of joints is governed by surface morphology, including roughness and interlocking conditions. Several criteria have been developed in recent decades to assess shear behavior. However, most civil engineering guidelines suggest using the Mohr-Coulomb criterion to evaluate shear strength.
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WebExisting reinforced concrete (RC) structures in humid regions suffer from deterioration due to the corrosion of ordinary reinforcement bars damaging the whole system. The deterioration of the transverse reinforcement leads to shear failure, which is one of the most dangerous failure modes. Therefore, researchers suggested using fiber-reinforced … WebIn addition to roughness [ 3 ], which affects the shear strength of rock joints, shear behavior is also affected by boundary conditions. Boundary conditions, under which natural rock joints are sheared, are generally divided into the constant normal load (CNL) and constant normal stiffness (CNS) boundary conditions [ 4, 5 ]. how long are index cards
Shear Behavior and Asperity Damage of 3D Rough Joints under …
WebMay 10, 2015 · The determination of rock bolt contribution to reinforced joint shear strength is still a challenge, especially for assessing reinforced rock mass stability. For this purpose, several experimental studies have been performed during the last decades, mostly on small scale rock joint and bolt specimens. WebIn this investigation, ultrasonic-assisted soldering at 260 °C in air produced high strength and high melting point Cu connections in 60 s using Ni foam reinforced Sn composite solder. Systematically examined were the microstructure, grain morphology, and shear strength of connections made with various porosities of Ni foam composite solders. WebMy research focuses on the estimation and evaluation of the shear strength of rock slope containing joints; lab tests are performed and then compare with numerical simulation using FLAC, PFC, 3DEC, Plaxis, Geo Slope and Matlab. I also do research related to the performance of Geogrid in the roadway application. PAPER PUBLICATIONS Lê, H.K., et al., … how long are indian passports valid