Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks by Liguo Zhang, Dong Wang, Guanghe Li, Jiaxing Dong, Jianpeng Zhang

“…Then, the spatial distribution of cataclastic rock masses and discontinuities in several rock slopes of a hydropower project are determined using traditional geological surveying and 3D laser scanning. …”
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An Evaluation of Health Rocks! with a Control Group by Dan Wang, Yunqi Wang, Maria R. de Guzman, Yan R. Xia, Kieu-Anh T. Do, Zhenqiao Yang

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Steering Parameters for Rock Grouting by Gunnar Gustafson, Johan Claesson, Åsa Fransson

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Performance Evaluation of GFRP Rock Bolt Sensor for Rock Slope Monitoring by Double Shear Test by Jung-Doung Yu, Jong-Sub Lee, Bibek Tamang, Sungyong Park, Sukhyun Chang, Jungmyeon Kim, Yongseong Kim

“…Furthermore, it is confirmed that the heat-shrink tube effectively protects strain gauges and wires, so that GFRP rock bolt sensors coated with heat-shrink tubes work for a longer time than the uncoated sensors. …”
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Effect of Loading Rates on Mechanical Characteristics and Rock Burst Tendency of Coal-Rock Combined Samples by Jiang Hu, Jingang Li

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Damage Evaluation for Rock Burst Proneness of Deep Hard Rock under Triaxial Cyclic Loading by Shuang You, Hongguang Ji, Zijian Zhang, Chenghan Zhang

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Particle Flow Analysis of Acoustic Emission Features of Rock under Rock Burst Stress Path by Yalei Wang, Jinming Xu

“…It shows that the unloading direction of rock may produce strong dilatation deformation during rock burst; with the increase of confining pressure, the more obvious dilatation deformation and the more possibility of serious rock burst to occur; the unloading failure of rock reveals that rock burst is a mixed failure of tensile and shear, and the tensile cracks account for about 70%; the number of AE events of rock unloading failure occur at the top and bottom of the rock first and then expand rapidly to the middle part until the rock is completely destroyed; in the process of rock burst, AE rupture strength is relatively concentrated, the number of AE events surge obviously, and the number of AE events in surge period account for more than 80% of all AE events. …”
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Numerical Simulation of Rock Failure Process with a 3D Grain-Based Rock Model by Zengwei Zhang, Fan Chen, Chao Zhang, Chao Wang, Tuo Wang, Fengshou Zhang, Huiling Zhao

“…As a result, this model can reach higher uniaxial compressive strength to tensile strength ratios and larger friction coefficients than the disk/sphere particle-based rock model. The model captured the rock fragmentation process near the wellbore due to buckling and spalling. …”
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Experimental Study on the Damage and Deterioration Behaviour of Deep Soft Rock under Water-Rock Interaction by Zenghui Zhao, Hao Liu, Xianzhou Lyu, Lei Wang, Zhongxi Tian, Jiecheng Sun

“…In addition, the failure pattern of mudstone changes from overall splitting failure to block fragmentation failure. Due to ion-exchange adsorption and the wedging action of water molecules, the edge of contact between particles changes from staggered to smooth, which leads to the expansion of pores, the loosening of mudstone structures, and a decrease in mechanical strength. …”
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Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review by Ri-hong Cao, Ping Cao, Hang Lin, Xiang Fan, Chunyang Zhang, Taoying Liu

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No domínio do Rock: da antologia à ontologia de um gênero musical by Gustavo Saba Serra, Juliana Horta de Assis Pinto

Subjects: “…organização do conhecimento…”
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Deformation and failure characteristics of soft rock tunnel surrounding rock under mining and water immersion conditions by XIE Panshi, FANG Jiarui, HU Bosheng, ZHANG Bo, ZHANG Xi, DUAN Siyu

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Single Pick Cutting Rock Load Identification Based on Improved Regularization Method by Lei Dong, Siyu Zhai, Bukang Wang, Liang Dong, Junyuan Wang, Ruimin Shi

“…To explore the relationship between the cutting vibration and the cutting load of a single pick, this paper studied a new method for a single pick cutting rock load identification. This paper improved the low accuracy problem of the regularization method in the inverse process of frequency response function in the traditional load identification method by introducing a filter operator. …”
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Prediction of the Stability of the Loaded Rock Based on the Acoustic Emission Characteristics of the Loaded Rock Based on Data Mining by Mengyao Li, Chang Su, Guolong Li

“…The rock masses that occur in nature are damaged and unstable due to the impact of rock burst, coal and gas outbursts, and other human mining activities, posing a major threat to human life and safety. …”
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The Principle of Invariant Stress of the Surrounding Rock of the Hole under the Condition of Equal Pressure in the Deep Rock Mass by Xiangye Wu, Jingya Wang, Jingang Li, Jianwei Li, Tao Xu, Eryu Wang

“…The study results showed the following. (1) In the current mining depth range, it is difficult to reach the limit of 5 times the hole radius under the condition of invariant pressure of deep rock mass, and it has a significant impact on the near field and relatively small impact on the far field, reflecting the localization effect of the stress influence range. (2) The increase of stress influence range mainly moves outward with the increase of plastic zone range, and its growth slope is low and tends to be horizontal, and the increase amount is negligible. (3) When the failure range of the plastic zone of the hole is small, the influence range of the stress does not change itself, which reflects the stress invariability of the small-scale failure of the surrounding rock of the hole. …”
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A Calculation Model of Cutterhead Resistance for Pipe Jacking in Rock Strata and Soil–Rock Composite Strata by Yulong Cao, Ran Zhong, Rongdong Tao, Feilun Luo, Liang Xiong, Yue Fan, Jiahao Mei, Peng Zhang

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A Systematic Method to Evaluate the Shear Properties of Soil-Rock Mixture considering the Rock Size Effect by Minghui Ren, Guangsi Zhao, Xianhao Qiu, Qinghua Xue, Meiting Chen

“…The soil-rock mixture (S-RM) is widely applied in the geotechnical engineering due to its better mechanical properties. …”
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A novel electrical rock typing approach to improve estimating formation resistivity factor in carbonate rocks by Milad Mohammadi, Mohammad Emami Niri, Abbas Bahroudi, Aboozar Soleymanzadeh, Shahin Kord

“…Abstract Estimating petrophysical properties in carbonate rocks is challenging due to their complex pore structure, which leads to scattered data when analyzing the relationship between formation resistivity factor (F) and porosity. …”
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Stability Control Mechanism of High-Stress Roadway Surrounding Rock by Roof Fracturing and Rock Mass Filling by Fuzhou Qi, Zhanguo Ma, Dangwei Yang, Ning Li, Bin Li, Zhiliu Wang, Weixia Ma

“…The field test results showed that a great amount of deformation and serious damage occurred in surrounding rocks during panel retreat due to the suspended roof. …”
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Determination of Energy Capacity and Suitable Location Selection Criteria in Flexible Rock Barriers Against Rockfall Risks by Eroltan Durmuş, Özkan Coruk, Ahmet Karakaş

“…As a result of the comparisons, it was seen that there were no significant differences in the block bounce heights and surface contact points, but the kinetic energy values obtained in the calculations (2515 kJ) were higher than the kinetic energy result given by the computer software (1600 kJ). The difference is due to the surface friction and restitution coefficients in the surface contacts of the rock block in the computer software. …”
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