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Full-Text Articles in Geotechnical Engineering
Energy Evolution And Failure Characteristics Of Single Fissure Carbonaceous Shale Under Drying−Wetting Cycles, Xin-Xi Liu, Yu Li, Zi-Jian Fan, Sheng-Nan Li, Wei-Wei Wang, Peng Dong
Energy Evolution And Failure Characteristics Of Single Fissure Carbonaceous Shale Under Drying−Wetting Cycles, Xin-Xi Liu, Yu Li, Zi-Jian Fan, Sheng-Nan Li, Wei-Wei Wang, Peng Dong
Rock and Soil Mechanics
In order to investigate the energy evolution and failure characteristics of carbonaceous shale containing single fissure under drying−wetting cycles, the intact carbonaceous shale samples and the carbonaceous shale samples with fissure angles of 30°, 45° and 60° were prepared. MTS815 rock mechanics test system was used to conduct triaxial compression tests under different drying−wetting cycles. The influence of drying−wetting cycles on the strength, failure mode and energy evolution of single fissure carbonaceous shale were studied. The results show that the elastic energy and dissipated energy at crack initiation stress, damage stress and peak stress present exponential relationships with drying-wetting cycles. …
Electrical Resistivity Evolution Of Compacted Silty Clay Under Drying−Wetting Cycles Sequentially Coupled With Dynamic Loads, Zhi Hu, Pin-Bo Ai, Zhi-Chao Li, Qiang Ma, Li-Hua Li
Electrical Resistivity Evolution Of Compacted Silty Clay Under Drying−Wetting Cycles Sequentially Coupled With Dynamic Loads, Zhi Hu, Pin-Bo Ai, Zhi-Chao Li, Qiang Ma, Li-Hua Li
Rock and Soil Mechanics
The performance evolution of subgrade soil under the coupling effect of drying?wetting cycle and dynamic load is essential for the safety and stability of the subgrade. In this study, a series of electrical resistivity tests was carried out on the compacted silty clay samples subjected to different drying?wetting cycles and dynamic loads using alternating current (AC) two-electrode method. The effect of drying?wetting cycles sequentially coupled with dynamic loads on the electrical resistivity of soil samples was investigated. Then, a mathematical relationship was established to quantitatively characterize the dynamic behaviors of soil samples based on electrical resistivity. Finally, the effectiveness of …