A Coupled Gas Flow-Mechanical Damage Model and Its Numerical Simulations on High Energy Gas Fracturing by Yu Bai, Li Sun, Chenhui Wei

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The Establishment of Segmented Constitutive Relationship of Coal under Triaxial Compression: Take the No. 3 Coal of Xinhe Colliery as an Example by Yongjie Yang, Yang Zhang, Tianli Zhang

“…This paper carried out the conventional triaxial compression test on No. 3 coal of Xinhe Colliery using the MTS815.03 servo-controlled rock mechanical test system. The results indicate that the failure process of coal can be divided into 5 stages: densification stage, apparent linear elastic deformation stage, accelerated inelastic deformation stage, fracture and developing stage, and plasticity flow stage. …”
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Pattern Recognition of the Vertical Hydraulic Fracture Shapes in Coalbed Methane Reservoirs Based on Hierarchical Bi-LSTM Network by Zhaozhong Yang, Chenxi Yang, Xiaogang Li, Chao Min

“…With this method, we can cope with the problems happened in early stage of the CBM field development such as the lack of monitoring wells and the information of rock mechanics. Moreover, the experiences of the engineers and the measured data are combinationally used, which can efficiently reduce the subjectivity and assist the engineers to make the refracturing design. …”
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Experimental Study on the Nonlinear Behavior of a Sailing Container Ship under Landslide-Induced Surges by Pei-yin Yuan, Ping-yi Wang, Yu Zhao, Mei-li Wang

“…Surges induced by rock landslides that enter water at a high speed are extremely destructive. …”
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Coal and Gas Comining in the High-Gas Detong Mine, China: Analytical and Numerical Parameter Optimization of Gas Extraction Boreholes by Wei Wang, Zongxiang Li, Guangmin Zhao, Yujin Chen

“…This study numerically simulated the fracture evolution in the coal rock overlying goaf in workface #2-104 of the Detong Mine, China. …”
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A Study on the Instability Mechanisms of Coal Pillars in Shallow Coal Seams Group Mining by Tielin Shang, Jindong Wang, Yuwei Liu, Yonglu Suo, Zhiyi Wang, Sixin Fu, Fei Zhang

“…The instability mechanism was such that the concentrated stress of the upper and lower coal pillars caused shear plastic damage in the interval rock along the direction of stress-transfer influence angle. …”
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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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A Bursting Liability Evaluation Method Based on Energy Transfer by Yukun Hou, Shankun Zhao, Yang Zhao

“…As coal mining gradually moves to deep earth, rock bursts have emerged as one of the main disasters threatening the safety of coal production. …”
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Experimental Investigation of Impact Response of RC Slabs with a Sandy Soil Cushion Layer by Jianli Wu, Guotao Ma, Zhenhua Zhou, Xuefeng Mei, Xiewen Hu

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Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles by Chunmei Zheng, Jiayan Zheng, Xiaojuan Peng, Lei Zhou

“…Due to the degradation of the connected force between the rock particles inside the specimen, there is an obvious decrease in the fracture energy per unit fracture surface from 0.94 to 0.38 J cm−2, with a decrease rate of 59.39%. …”
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Presplit Blasting Technique in Treating Hard Overlying Strata: From Numerical Simulation to Field Practice by Baisheng Zhang, Zhiping Yang, Xuming Yang, Shuai Zhang

“…The effectiveness of the presplit blasting technique was well verified when the microstructures of the surrounding rock were investigated. The success presented in this paper does not only demonstrate the feasibility of using the presplit blasting technique in treating the hard strata of underground mines but also provide a guideline in determining the critical parameters by the numerical simulation and theoretical analysis from the design aspect.…”
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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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Study on the Settlement Mechanism with Effect of Backfilling Method of an Underground Mine by Dequan Xuan, Zhiming Liu, Gang Huang, Jianhua Zhang, Tingting Jiang, Bo Ke

“…Based on the basic calculation parameters, the influence of a different foundation coefficient, mining depth, length-width ratio of plate area, elastic modulus of roof rock, and thickness of roof on the subsidence of roof is studied. …”
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Influence of Structural Plane Microscopic Parameters on Direct Shear Strength by Yanhui Cheng, Weijun Yang, Dongliang He

“…Structural plane is a key factor in controlling the stability of rock mass engineering. To study the influence of structural plane microscopic parameters on direct shear strength, this paper established the direct shear mechanical model of the structural plane by using the discrete element code PFC2D. …”
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Linear Correlation of Ba and Eu Contents by Hydrothermal Activities: A Case Study in the Hetang Formation, South China by Chao Chang, Qi Fu, Xiaolin Wang

“…It is evident that significant contribution of both Ba and Eu from hydrothermal fluids is the cause of this linear relationship, while this coexistence is ultimately controlled by their similar chemical properties and abundances in rock sequences along the fluid path. This interpretation was supported by similar linear Ba-Eu correlations retrieved from barite-bearing chert in another area of the Yangtze platform during the same geological period. …”
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Utilizing the Novel Developed MLP Techniques to Survey Pile Subsidence via Optimization Algorithms by Augustinus Sieck, Graciela Daniels

“…Over the variants in designing the pile penetrated in rock, the vertical settlement is of paramount importance to know. …”
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Role of dietary and nutritional interventions in ceramide-associated diseases by Shengnan Wang, Zihui Jin, Biyu Wu, Andrew J. Morris, Pan Deng

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Analysis of Thermal Environment and Its Influencing Factors in Deep Stope of Metal Mine by Shuang You, Jincui Sun, Hongguang Ji, Qixing Feng

“…In order to scientifically evaluate the thermal environment of the deep stope and its influencing factors, research was conducted on the thermal environment in Sanshandao Gold Mine, the theoretical calculations and structural analysis of heat release from 8 types of heat sources in the three sub-levels of -930 m, -945 m, and -960 m were carried out, and quantitative characterization was made on the influential degree of comprehensive heat release on the thermal environment, and it was clear that the heat release from the surrounding rock and mechanical and electrical equipment were the main parts at the deep mining site and the proportion of heat release from other heat sources is basically stable. …”
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Time-Frequency Characteristics of Acoustic Emission Signals on Water-Bearing Sandstone Specimen Subjected to Conventional Uniaxial Compression by Hui-qiang Duan, Ming-tao Gao, Hong-yu Yan

“…This characteristic provides a theoretical basis for predicting the failure of water-bearing rock in engineering practice. (2) In the elastic phase, the AE b value is the lowest but has a sudden increase after falling into the steady crack propagation phase. …”
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Dynamic Mechanical Properties and Damage Mechanism of Freeze-Thaw Sandstone under Acid Corrosion by Xiaoxiao Cao, Meimei Feng, Kangsheng Yuan

“…During the construction of geotechnical engineering in cold regions, the stability of rock is inevitably affected by freeze-thaw cycles and hydrochemical corrosion. …”
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