Effect of Multistage Thermal Cracking on Permeability of Granite by Zi-jun Feng, Yang-sheng Zhao, Peng Zhao, Zhi-jun Wan

“…Experiments on thermal cracking in granite sample were conducted through acoustic emission monitoring, and changes in permeability were concomitantly studied using 600°C 20 MN servo-controlled triaxial rock mechanics testing machine. Two granite samples, 200 mm in diameter and 400 mm long, from Shandong, China, were selected for these experiments. …”
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Experimental Investigation of Water-Inrush Risk Based on Permeability Evolution in Coal Mine and Backfill Prevention Discussion by Meng Li, Jixiong Zhang, Weiqing Zhang, Ailing Li, Wei Yin

“…Borehole sampling was conducted in a bedrock layer beneath an aquifer, and the permeability evolution of sandstone specimens under different confining pressures was tested in rock mechanics testing laboratories. The results indicated that the permeability gradually decreases with the increasing confining pressures, while the peak strength increases with the increase of confining pressures. …”
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Study on Lateral Deformation and Failure Characteristics of Coal Based on Different Confining Pressures by Jian-jun Ren, Shan-Yang Wei, Shi-Hai Shu, Wei-Dong Luo

“…To study the lateral deformation characteristics of coal under different confining pressures, coal compression experiments with confining pressures of 0 MPa, 3 MPa, 5 MPa, and 7 MPa were conducted under the same loading rate by using the TAW-2000 electrohydraulic servo rock mechanics experimental machine. The results of the study showed the following: at the initial stage of loading, the lateral strain of coal was about 12.22%–46.9% of the axial strain at the elastic deformation stage and 41.18%–64.96% of the axial strain at the inelastic deformation to peak stress stage. …”
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Constitutive Model of Rock Uniaxial Damage Based on Rock Strength Statistics by Ming Ji, Kai Chen, Hong Jun Guo

“…The research outcomes presented in this paper can provide useful reference for the theory of rock mechanics and for rock engineering.…”
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Study on Acoustic Emission Characteristics and Damage Evolution Law of Shale under Uniaxial Compression by Wenjie Wu, Chee-Ming Chan, Yilei Gu, Xiaopeng Su

“…Investigating the correlation between acoustic emission (AE) parameters and damage mechanisms in rock mechanics can help understand rock damage evolution under loading and provide a theoretical basis for engineering support and safety detection. …”
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Permeability Experiment of Fractured Rock with Rough Surfaces under Different Stress Conditions by Zilong Zhou, Jing Zhang, Xin Cai, Shanyong Wang, Xueming Du, Haizhi Zang

“…To investigate the permeability changes and the mechanisms of fractured rock under dynamic and static stresses produced by earthquakes, permeability experiments on fractured rock with rough surfaces under axial dynamic and static stresses were conducted on the MTS815 Rock Mechanics Testing System. Surface asperity was investigated by scanning the specimen surfaces before and after testing. …”
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Prediction Method for the Ground Vibration Damage Boundary of Thick and Hard Rock Layer Fracture Type Mine Quakes by Ming Zhang, Xuelong Hu, Min Tu, Yong Yue, Qingwei Bu

“…In this study, based on the example of the ground vibration damage response of a thick and hard rock layer fracture type mine quake, and by applying the theories of mine pressure, rock mechanics and vibration energy principle, the concept of “vibration damage boundary” of mine quake ground, which uses particle vibration velocity to evaluate the vibration damage, is proposed. …”
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Shear Behavior and Anisotropy Characteristics of the Fracture Morphology of Sandstone with Different Water Contents by Changang Du, Lulu Sun, Botao Qin, Jiang Xu, Yixin Liu

“…Hydromechanical coupling in rock masses is an important issue for many rock mechanics and hydrogeology applications. The change of a water-bearing state will induce the fracture of the intact rocks and further accelerate the shear slip instability of the sheared surface. …”
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Fracability Evaluation Method and Influencing Factors of the Tight Sandstone Reservoir by Jiageng Liu, Lisha Qu, Ziyi Song, Jing Li, Chen Liu, Yongcun Feng, Haihang Sun

“…In this study, a systematic model was proposed for the fracability evaluation of tight sandstone reservoirs. The rock mechanics tests and sonic tests demonstrated that tight sandstone reservoir is characterized by high brittleness, high fracture toughness, and weak development of natural fractures. …”
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Experimental Study on Seepage Characteristics of Fractured Rock Mass under Different Stress Conditions by Ma Haifeng, Yao Fanfan, Niu Xin’gang, Guo Jia, Li Yingming, Yin Zhiqiang, Li Chuanming

“…In order to obtain the mechanical behavior and permeability characteristics of coal under the coupling action of stress and seepage, permeability tests under different confining pressures in the process of deformation and destruction of briquette coal were carried out using the electrohydraulic servo system of rock mechanics. The stress-strain and permeability evolution curves of briquette coal during the whole deformation process were obtained. …”
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Static Pull Testing of a New Type of Large Deformation Cable with Constant Resistance by Zhigang Tao, Shihui Pang, Yijun Zhou, Haijiang Zhang, Yanyan Peng

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Mechanical Properties of Deep Variable Dip Joint Rock Mass in Reservoir Area under Wet and Dry Conditions by Fei Li, Huafeng Deng, Wenwen Liu, Guoyong Duan

“…The mechanical property of deep complex jointed rock mass is a hot topic in rock mechanics. In order to grasp the deformation and damage rules of through-going variable dip joint rock masses, the triaxial compression test and joint surface morphology scan test were conducted on cylindrical specimens in dry and wet conditions under 0, 5, 10, and 20 MPa water pressure. …”
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Acoustic Emission Characteristics and Energy Evolution of Red Sandstone Samples under Cyclic Loading and Unloading by Tianzuo Wang, Chunli Wang, Fei Xue, Linxiang Wang, Beyene Hana Teshome, Mengya Xue

“…To explore the characteristics of rock deformation and failure under cyclic loading and unloading, the MTS815 rock mechanics test system and acoustic emission (AE) signal acquisition system were used to perform cyclic loading and unloading tests on red sandstone samples. …”
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Experimental Research on Acoustic Emission Characteristics and Felicity Effects during Coal Fatigue Failure under Cyclic Loading by Yongjie Yang, Luyi Xing

“…In order to study the acoustic emission characteristics and Felicity effect in the process of coal fatigue failure and reveal the internal relationship between the fatigue damage evolution law and the acoustic emission activity, with the help of MTS815.02 electrohydraulic servo rock mechanics test system and PCI-2 acoustic emission detection and analysis system, a triaxial cycling loading acoustic emission test was carried out on the coal samples. …”
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An Experimental Apparatus for Monitoring Radon during Compression of Coal/Rock Samples and Its Preliminary Application by Wei Zhang, Kaidi Xie, Yanchao Zhu, Yandong Zhang, Xu Duan, Jibo Zhu

“…Based on this, an experimental apparatus was independently designed for monitoring radon during compression of coal/rock samples from coal-bearing strata, whose major components include an electrohydraulic servocontrolled rock mechanics testing system, an airtight container, coal/rock samples, radon output device, and a continuous emanometer. …”
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Characteristics Analysis of Generalized Rock Quality Designation (RQD) Based on Degree of Joint Development by Lin Jun, Sha Peng, Gao Shuyu, Ni Jiji

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Experiment and Failure Analysis of Rock-Like Material Affected by Different Excavation Depths by Yuan Tian, Zhende Zhu, Xinyu Liu, Yanxin He

“…In order to increase the understanding of the strength and failure mechanism of rock mass during tunnel excavation, a series of uniaxial compression tests were conducted on mortar specimen with cracks and holes by using a rock mechanics servo-controlled testing system. And by monitoring the experimental process, the initiation, propagation, and coalescence process of cracks were observed and characterized. …”
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The Mechanical Criterion of Activation and Instability of Normal Fault Induced by the Movement of Key Stratum and Its Disaster-Causing Mechanism of Rockburst in the Hanging Wall Mi... by Lyu Pengfei, Lu Jiabin, Wang Eryu, Chen Xuehua

“…Subsequently, three conceptual models of rockburst induced by the fault stress transfer, stress concentration of coal pillars, and fault structural instability were proposed. Based on the rock mechanics theory, the rockburst carrier system model of “roof-coal seam-floor” near the fault was established. …”
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Analysis of Mechanical Properties and Slope Stability of Red Bed Soft Rock: A Case Study in Xinjiang Irrigation Diversion Channel by Da Liu, Jianglin Gao, Fang Chen, Songtao Hu, Xiaohua Zhao, Yan Li

“…In view of the collapse and instability of Zhetang diversion irrigation channel project in Xinjiang hydraulic project, through on-site sampling and indoor rock mechanics test, the strength mechanical parameters of slope rock samples are obtained, and the indoor rheological test is carried out, and the triaxial rheological law is obtained. …”
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A Predictive Model of Mining Collapse Extent and Its Application by Jia Nan, Cheng Liu, Yi Liu

“…The results show the following. (1) Analytical formulas of the critical slip angle and the collapse height of the ore body were derived by the mechanics method, and the rock mechanics parameters were obtained by field coring and physical and mechanical experiments. …”
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