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Full-Text Articles in Civil and Environmental Engineering
Grouting Test And Reinforcement Mechanism Analysis Of Rock With Single Penetrated Fracture Surface, Yong-Jian Zhu, Heng Ren, Ping Wang, Peng Li, Xi-Zhi Wang, Ming-Xing Wei
Grouting Test And Reinforcement Mechanism Analysis Of Rock With Single Penetrated Fracture Surface, Yong-Jian Zhu, Heng Ren, Ping Wang, Peng Li, Xi-Zhi Wang, Ming-Xing Wei
Rock and Soil Mechanics
For the problem that how the grouting reinforcement of a single penetrated structural plane affects the bearing capacity of surrounding rock, an approach of rock samples preparation with single penetrated fracture surface is proposed firstly, and the rock samples are injected with ultrafine cement and epoxy resin, respectively. Then, the strength and deformation characteristics of the consolidated body under uniaxial (triaxial) compression are investigated with the RMT-150C experimental system. Finally, the micro consolidation mechanism of structural plane grouting is revealed using theoretical analysis and electron microscope scanning. It is found that the fracture surface generated under the triaxial loading-unloading condition …
A New Method For Evaluating Rock Joint Roughness Based On Power Spectral Density, Chuan-Qing Zhang, Yu-Hang Guo, Jin-Shun Xu, Ning Liu, Qi-Ming Xie, Guo-Jian Cui, Hui Zhou
A New Method For Evaluating Rock Joint Roughness Based On Power Spectral Density, Chuan-Qing Zhang, Yu-Hang Guo, Jin-Shun Xu, Ning Liu, Qi-Ming Xie, Guo-Jian Cui, Hui Zhou
Rock and Soil Mechanics
To further improve accuracy and reliability of describing the roughness feature of the structural plane, and more comprehensively reflect influences of the morphological differences, the fluctuation of the profile was decomposed into three principal characteristics: amplitude, inclination, and curvature, which represent the change characteristics of height, angle, and bending of the profile. The data of the three characteristics were obtained by 10 standard profiles established by Barton. And the distribution curves of the three characteristics were analyzed. Then, the power spectral density (PSD), which can well describe the microscopic morphology, was used to analyze the spectral characteristics of amplitude, inclination …