Experimental Study on Failure Law and Mechanism of Red Sandstone under Ultrasonic Vibration Excitation by Jiyao Wang, Xufeng Wang, Xuyang Chen, Liang Chen, Zhanbiao Yang, Zechao Chang, Lei Zhang, Zhijun Niu

“…In order to understand the fundamental failure mechanism of rocks subjected to ultrasonic vibrations, based on P-wave monitoring and the direct current electric method, we captured the evolution of the failure process of the red sandstone. In addition, we fundamentally analyse the failure mechanisms of the red sandstone using numerical simulation and microscopy scans. …”
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Mechanical properties and piecewise constitutive model of fine sandstone in mining area of western China by Qing Wang, Dongxiao Zhang, Fei Han, Yongqiang Zhao, Pengfei Zhang, Feng Xiong

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Acoustic emission characteristics and damage constitutive model of fractured sandstone under uniaxial compression by Qiang Liu, Chao Pan, Lin Yan, Xuguang Wang, Shujian Li, Juncai Cao

“…Abstract To investigate the statistical laws of acoustic emission energy (AEE) avalanche dynamics of sandstone under varying fracture lengths and dip angles, as well as to determine the relationship between acoustic emission (AE) parameters and damage variables, we studied the mechanical properties and AE characteristics of sandstone with a single fracture subjected to uniaxial compression with the aid of the Shimadzu AG-IS test system and the PCI-2 AE system. …”
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Creep Characteristics of Different Saturated States of Red Sandstone after Freeze-Thaw Cycles by Yongxin Che, Yongjun Song, Jianxi Ren, Jiaxing Chen, Xixi Guo, Hao Tan, Mengling Hu

“…Under long-term loading, the saturation has a significant influence on the time-efficiency characteristics of sandstone freeze-thaw. As the saturation increases, the creep deformation gradually increases. …”
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Slope Aspect Differentiation of Pisha Sandstone Slide Erosion and Its Response to Meteorological Factors by REN Yanan, LI Long, ZHANG Shangxuan, ZHANG Yu, ZHOU Xingchen

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Study on the Relationship between Chlorite Clay Film Diagenesis and Sedimentary Facies in Reservoir Sandstones by Rui Zhang, Guangsheng Qin, Minglong Nie

“…A large amount of oil and gas has been found in Chang 6 Formation sandstones in Huaqing region of Ordos Basin. It is controversial whether the chlorite clay film is one of the main controlling factors of high quality sandstone reservoirs in this area. …”
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Dynamic Splitting Behavior and the Constitutive Relationship of Frozen Sandstone Containing a Single Fissure by Tao Zhao, Gengshe Yang, Lei Wang, Hailiang Jia, Yuzhe Qiao

“…Fractured sandstone is widely distributed in mining areas throughout western China where the artificial freezing method is extensively adopted to construct vertical shafts. …”
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Experimental Study of Multiple Physical Parameters Monitoring during Uniaxial Loading Process of Sandstone by Yongchuan Zhao, Tianhong Yang, Wenhao Shi

“…Aiming at the damage evolution and energy release characteristics of sandstone in failure process, uniaxial and cyclic loading experiments were conducted with the average temperature, infrared temperature field, acoustic emission (AE), and displacement field being monitored simultaneously. …”
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Study on Freezing-Thawing Failure Process of Natural Damage Sandstone Based on Cellular Automata by Hui Liu, Yali Xu, Huiqi Huang, Senlei Han, Hainan Xu

“…The CT scanning test of sandstone with different freezing and thawing cycles was carried out. …”
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Mechanism Analysis of the Influence of Freeze-Thaw on the Damage and Debonding Evolution of Sandstone-Concrete Interface by Yanjun Shen, Tao Luo, Xin Wei, Xueting Li, Long Jin, Liangdong Wen, Hui Peng, Yanjun Ji

“…Accordingly, based on the combination of sandstone-concrete as the object, through the development of sandstone-concrete interface freeze-thaw cycling test, and combining the nuclear magnetic resonance (NMR) test and scanning electron microscopy (SEM) analysis, the mechanism of debonding by freeze-thaw damage at the sandstone-concrete interface was systematically revealed. …”
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NMR Pore Structure and Dynamic Characteristics of Sandstone Caused by Ambient Freeze-Thaw Action by Bo Ke, Keping Zhou, Hongwei Deng, Feng Bin

“…With increasing freeze-thaw cycles, the dynamic peak stress decreases and energy absorption of sandstone increases. The dynamic failure form is an axial splitting failure, and the fragments increase and the size diminishes with increasing freeze-thaw cycles. …”
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Quantitative Damage and Fracture Mode of Sandstone under Uniaxial Load Based on Acoustic Emission by Ying Xu, Qiangqiang Zheng, Xin Gao, Rongzhou Yang, Xian Ni, Qianqian Wang

“…The failure and instability of sandstone under uniaxial load is mainly shear failure. …”
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Experimental Study on Dynamic Compression Characteristics of Red Sandstone under Wetting-Drying Cycles by Bin Du, Haibo Bai, Minglei Zhai, Shixin He

“…To study the influence of wetting-drying cycles on dynamic mechanical properties of rock masses, the impact compression tests of red sandstone samples were carried out by using a split Hopkinson pressure bar (SHPB) apparatus with a diameter of 50 mm. …”
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Characteristics of Pore-Throat in Tight Sandstones of the Jurassic Ahe Formation in the Northern Tarim Basin by Tong Lin, Cong Tan, Xing Zhang, Lei Zhao, Hongxing Wei, Lan Wang, Xin Nie, Xu Zeng

“…In order to clarify the characteristics of pore-throat in tight sandstone reservoirs in the Dibei area of the Kuqa Depression in the Tarim Basin (Northwest China) and to make clear its impact on reservoir quality and productivity, microscopic observation and quantitative analysis of 310 tight sandstones in the Kuqa Depression are carried out by using various methods. …”
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Dynamic Mechanical Properties and Damage Mechanism of Freeze-Thaw Sandstone under Acid Corrosion by Xiaoxiao Cao, Meimei Feng, Kangsheng Yuan

“…In addition, X-ray diffractometer (XRD) and scanning electron microscope (SEM) were used to analyze the changes of mineral composition and microstructure damage of sandstone samples under the coupling effect of acid corrosion and freeze-thaw cycles. …”
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Research on Energy Conversion and Damage Features of Unloading Instability of Sandstone under High Stress by Zhiyuan Hou, Chuanbo Hao, Fukun Xiao, Gang Liu

“…In order to explore the failure characteristics of sandstone under unloading conditions in deep zone with high stress, constant axial pressure and unloading confining pressure tests were conducted on a yellow sandstone sample under different initial confining pressures using the French ROCK600-50 triaxial tester, and the mechanical properties, energy conversion characteristics, and damage evolution law of sandstone failure under unloading conditions were obtained. …”
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Petrography of Sandstone Units of Injana Formation in Al-Teeb Area South Eastern Iraq by Hasan Kattoof Jasim, Maysoon Omer Ali

“… Abstract The present study deals with study the sandstone units of injana formation in Alteeb area, east of Missan governorate southeastern Iraq. …”
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Saturation Height Modelling for Tight Sandstone Reservoirs with Gas Diffusion Dynamics Taken into Account by Zhou Lyu, Zhilun Yang, Yuhong Hao, Shunzhi Yang, Liqiong Wang, Sen Chang, Xiaomin Xue, Jing Li

“…Interpreting and predicting the saturation of tight sandstone gas reservoirs are the key task to improve the reservoir development. …”
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Three-Dimensional Reconstruction and Numerical Simulation Analysis of Acid-Corroded Sandstone Based on CT by Zizhen Miao, Shuguang Li, Jiangsheng Xie, Runke Huo, Fan Ding, Hongtao Zhu, Xingzhi Yang, Xiaoke Li

“…The uniaxial compression test of corroded sandstone is simulated by ABAQUS software. Comparing the numerical simulation results with the physical experiment results, we found that the three-dimensional finite element model based on CT scanning technology can genuinely reflect sandstone’s corrosion characteristic. …”
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Experimental Study of Stress-Seepage Coupling Properties of Sandstone under Different Loading Paths by Xi Chen, Wei Wang, Yajun Cao, Qizhi Zhu, Weiya Xu, Huaining Ruan

“…In this study, a series of conventional triaxial tests under drained condition and hydrostatic compression tests under drained or undrained condition on sandstones were conducted. Moreover, complex cyclic loading and unloading tests were also carried out. …”
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