The Pore Diffusion Coefficient of Iodide Ion in Rock Samples Using X-ray K-edge Imaging by Jiujiang ZHAO, Zhe WANG, Zhidu ZHANG, Hong ZHAO

“…To minimize the shape effect of cylindrical samples, the average greyscale values, which were selected from the area of ±5mm to the center of radial direction, were used for calculating the iodide ion pore diffusion coefficient. …”
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Energy Failure Mechanism and Bedding Effect of Soaked Coal Under Uniaxial Compression by Xiaoling LIU, Zetian ZHANG, Ru ZHANG, Zhiguo CAO, Li REN, Ziwan SUN, Ersheng ZHA

“…The initial water content state of the test sample before immersion is natural. The coal samples are immersed in static water to simulate the soaking of the coal pillar dam body. …”
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Experimental Research on Progressive Damage Mechanism for Water Immersed Coal Under Cyclic Loading and Unloading by WANG Fangtian, TANG Tiankuo, ZHANG Cun, DOU Fengjin, WEI Xueqian, SUN Nuan, CHENG Jiazhang

“…The compressive strength of the dried coal sample after grade Ⅲ cyclic loading and unloading was 14.27 MPa, which was 9.85% lower than the average value before cyclic loading and unloading. …”
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Bedding Effect on the Deformation: Damage Differentiation of Coal Mass by Liu Shaoqiang, Zhao Hongbao, Kang Qinrong, Wang Tao, Ji Dongliang, Su Boyi

“…In order to reveal the mechanical properties and damage mechanism of coal with parallel multibedding under stress disturbance, the raw coal samples with parallel multibedding were selected. …”
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RIEDEL MEGASHEARS R' AND THE TREND TO GRAVITATIONAL EQUILIBRIUM AS MAIN FACTORS OF TSUNAMIGENIC EARTHQUAKES by M. A. Goncharov, E. A. Rogozhin, N. S. Frolova, P. N. Rozhin, V. S. Zakharov

“…Such style of shear formation has been explained in various waysare proposed (Fig. 15–16), and the main point of the explanations is joining of small tensile fractures by means of larger shear fractures. However, our experiments with wet clay (Fig. 31–35) show that even artificially created ’Riedel shears’ show nearly a zero extension under loading followed by shearing, which casts doubt on possibile occurence ofshear fractures as such without involvement of smaller tenson joints.While being not satisfied with the results of our experiments, we carried out numerical simulations of the evolution of Riedel shears, R and R' for different values of lithostatic pressure (which is actually impossible in experiments with equivalent materials) and angles of shearing. …”
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