Study of Damage Constitutive Model of Brittle Rocks considering Stress Dropping Characteristics by Fei Li, Shuang You, Hongguang Ji, Hao Wang

“…And the influence of model parameters on rock mechanical behaviour is analysed. The results show that the model reflects the stress dropping characteristics of deep brittle rock and the theoretical curve is in good agreement with the experimental results, which indicates that the proposed constitutive model is scientific and feasible.…”
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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

“…Pore pressure weakened the effect of the confining pressure under drained condition, which led to a decline in rock mechanical properties. It appeared that cohesion was more sensitive to pore pressure than to the internal friction angle. …”
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Multiscale Laboratory Study and Numerical Analysis of Water-Weakening Effect on Shale by Zhen Li, Shangge Liu, Wentao Ren, Jinjin Fang, Qinghua Zhu, Zhilin Dun

“…Then, a series of rock mechanical tests, including uniaxial compressive test, Brazilian disk test, and triaxial compressive test, were carried out on shale under dried condition, wetted condition with various water contents, and saturated condition. …”
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Roadway Support in Deep “Three-Soft” Coal Seam: A Case Study in Yili Mining Area, China by Wenxin Li, Jinxiao Liu, Lianjun Chen, Zhilu Zhong, Yongle Liu

“…First, the characteristics of stress field and the surrounding rock properties of deep mining area were investigated through geostress measurement and rock mechanical test. Then, the roadway deformation and the loose circle of the supporting structure were obtained. …”
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Computation and Analysis of High Rocky Slope Safety in a Water Conservancy Project by Meng Yang, Huaizhi Su, Xiaoqun Yan

“…To better excavate useful message and analyze the deep rule from the practical monitoring data, the slope geological model was conducted and rock mechanic parameters were researched. Finally, a unique three-dimensional finite element model was applied to approach the structure character using numerical simulations. …”
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Geomechanical Characteristics and Stimulation of Dibei Deep Tight Sandstone Reservoirs in the Kuqa Depression of Tarim Basin by Ke Xu, Haijun Yang, Hui Zhang, Zhimin Wang, Lu Fang, Guoqing Yin, Haiying Wang

“…Facing the problem of increased production of deep tight gas reservoirs, this study takes the Dibei gas reservoir in Tarim Basin as an example, carries out geomechanical research, and reveals the rock mechanical properties, in situ stress, and fracture characteristics of the tight reservoir. …”
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Simulation and Test Study of Blast Crater in Deep Ore Body of Metal Mine Based on Lsdyna by Erhu Dong, Long An, Yuanhui Li, Jiahua Zhang

“…With the increase of mining depth, the blast process is more and more affected by the rock mechanical properties of the ore body, explosive properties, and crustal stress. …”
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Effect of Moisture Content on Bursting Liability of Sandstone due to Freeze-Thaw Action by Kesheng Li, Maotong Li, Deng Zhang, Chuanxiao Liu, Depeng Ma

“…The relationship between rock mechanical properties, bursting liability of rock, and MC after freeze-thaw damage was established, and the control mechanism of moisture content on mechanical properties and rockburst tendency of rocks in cold regions was revealed. …”
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Study on the Evolution Laws of Anchoring Property of Surrounding Rock of Argillaceous Weakly Cemented Roadway in Water Environment by Weiguang Zhang, Zhiguo Chang, Jianbiao Bai, Rui Wang

“…This paper is aimed at studying the influence of composition and microstructure on the Jurassic weakly cemented rock mechanical properties. No. 1802 tailentry was used as the engineering background, located in the Danan Lake No. 5 mine in Xinjiang, China. …”
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Evaluation of Improving Water Flooding Technology by Volume Fracturing of Water Injection Wells in Complex Fractured Reservoirs: A Case Study of Chang 6 Reservoirs in Huaqing Oilfi... by Shengping He, Jiaosheng Zhang, Chao Li, Xiqun Tan, Yi Ping, Desheng Li, Jiang Chen

“…On the basis of previous studies, firstly, the development of fractures and the rock mechanical properties of reservoirs are studied, and then the expansion law of volumetric fracturing fractures in the study area is analyzed. …”
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Effect of Strain-Dependent Hydraulic Conductivity of Coal Rock on Groundwater Inrush in Mining by Haifeng Lu, Nan Shan, You-Kuan Zhang, Xiuyu Liang

“…In this study, variations of hydraulic conductivity of rock samples during rock deformation and failure were measured using the triaxial servo rock mechanic test in a laboratory. The exponential formula of hydraulic conductivity-volume strain was proposed based on the experimental data. …”
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Macro-Micro Study on Mechanical Properties of Frozen Fine Sandstone Based on DEM Mathematical Model by Maoyan Ma, Min You, Shuguang Peng, Biao Zhang, Yuan Lin

“…The study of freezing rock mechanical properties is getting more and more urgent because of coal mine construction in western China. …”
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Saline–CO₂ Solution Effects on the Mechanical Properties of Sandstones: An Experimental Study by Motao Duan, Haijun Mao, Guangquan Zhang, Junxin Liu, Sinan Zhu, Di Wang, Hao Xie

“…In deep brine oil and gas injection–production operations, the combined long-term effects of brine and carbon dioxide on rock mechanical properties are not clear. In order to solve this problem, the influence of long-term salt–CO₂ environment on the mechanical properties of sandstone is discussed. …”
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Research on the Pore Evolution of Sandstone in Cold Regions under Freeze-Thaw Weathering Cycles Based on NMR by Zheng Pan, Keping Zhou, Rugao Gao, Zhen Jiang, Chun Yang, Feng Gao

“…The evolution of the rock pore structure is an important factor influencing rock mechanical properties in cold regions. To study the mesoscopic evolution law of the rock pore structure under freeze-thaw weathering cycles, a freeze-thaw weathering cycle experiment was performed on red sandstone from the cold region of western China with temperatures ranging from -20°C to +20°C. …”
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Quantitative characterization of the multiscale mechanical properties of low-permeability sandstone roofs of coal seams based on nanoindentation and triaxial tests and its implicat... by Feng Cao, Jianhua He, Hongxiu Cao, Hucheng Deng, Andrew D. La Croix, Rui Jiang, Ruixue Li, Jiarun Li

“…Abstract Microstructural heterogeneity of low-permeability sandstone roofs of deep unmineable coal seams due to diagenesis significantly affects rock mechanical behavior, greatly impacting the sealing potential of in situ CO2 sequestration and the structural stability of the geological formation. …”
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Study and application on the size effect and end effect of red sandstone mechanical properties by Feng Chen, Jinyang Du, Yanhong Du, Ruxuan Li, Chun’an Tang, Yishan Pan, Gen Li

“…This study provides essential insights into understanding rock mechanical properties and their applications in engineering.…”
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A compressive damage model for a rock considering the microcrack mechanical behavior by Cui LIU, Zhong LI, Feiya XU, Mo ZHANG, Xiaowei CAO, Heng LEI

“…Finally, the parametric sensitivity analysis was adopted to study the effects of the microcrack length, friction coefficient, and rock fracture toughness on the rock mechanical properties. The results show that the rock climax strength from the proposed model is consistent with the corresponding test result, indicating that the proposed model is reasonable. …”
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Stability Analysis of “Support-Surrounding Rock” System for Fully Mechanized Longwall Mining in Steeply Dipping Coal Seams by Shenghu Luo, Tong Wang, Yongping Wu, Jingyu Huangfu

“…Considering the floor as an elastic foundation, we built a “support-surrounding rock” mechanical model using data obtained on support-surrounding rock systems in different regions and the laws of support motion under different load conditions. …”
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Relationship between Brittleness Index and Crack Initiation Stress Ratio for Different Rock Types by Juyu Jiang, Dong Wang, Xinping Han, Shuai Di

“…Brittleness and crack initiation stress (σci) are important rock mechanical properties and intrinsically related to rock deformation and failure. …”
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Experimental and Theoretical Investigations of Hard Rocks at High Temperature: Applications in Civil Engineering by Mambou Ngueyep Luc Leroy, Foguieng Wembe Marius, Ngapgue François

“…This work shows that hard rock mechanical and physical properties evolutions are strongly related to the evolution of the microstructure caused by the geological history, cracks nucleation occurrences, recrystallization, dehydroxylation, and dehydration reactions. …”
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