Changes in the Structures and Directions of Rock Excavation Research from 1999 to 2020: A Bibliometric Study by Dongping Shi, Chengyu Xie, Lichun Xiong

“…Rock excavation has been the hot spot and frontier of scientific research. …”
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Mechanical Properties and Control Rockburst Mechanism of Coal and Rock Mass with Bursting Liability in Deep Mining by Ming-tao Gao, Zhen-qi Song, Hui-qiang Duan, Heng-qi Xin, Jian-quan Tang

“…In order to study the mechanism of the dynamic disaster of rockburst in a deep coal mine and the prevention and control measures of weakening shock, the MTS815.03 servocontrolled rock mechanics test system is used to test the coal, rock, and combined specimens with the buried depth of nearly 1200 m in Xinwen Mining Area. …”
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Failure Law and Mechanism of the Rock-Loose Coal Composite Specimen under Combined Loading Rate by Genshui Wu, Weijian Yu, Ze Liu, Zhu Tang

“…The surrounding rock deformation in the underground mining roadway increases rapidly during excavation and mining disturbance. …”
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Numerical Simulation Research and Application of Support Design of Broken Rock Mass in Submarine Gold Mine by Yu-yun Fan, Ming-wei Jiang, Li Cheng, Xi Wang, Xing-quan Liu, Chunlong Wang, Kexu Chen

“…In order to solve the problem that the broken rock mass is easy to collapse and fall during the excavation of a submarine gold mine, two kinds of bolt-mesh-concreting combined support schemes are designed by means of field engineering geological investigation, indoor rock mechanics test, rock mass quality classification, and theoretical analysis. …”
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Load-Bearing Characteristics of Large-Diameter Rock-Socketed Piles Based on Ultimate Load Tests by Xueying Liu, Xiaoyu Bai, Mingyi Zhang, Yonghong Wang, Songkui Sang, Nan Yan

“…As part of a large converter project in Shandong Province, vertical static load tests and internal force tests were conducted on three large-diameter rock-socketed piles, their load transfer mechanism was clarified, and the ultimate side resistance and ultimate resistance performance characteristics of the rock-socketed sections were analyzed. …”
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Theoretical Calculation Method for the Hugoniot Elastic Limit of Hard Rock Based on Ideal Elastoplastic Model by Yihao Cheng, Chunming Song, Yizhong Tan, Songlin Yue, Gan Li, Yanyu Qiu, Tianhan Xu, Yong Liu, Fei Gao, Qian Yu

“…To study the theoretical calculation method of the HEL for hard rock, the major factors determining the strength of rock under dynamic loadings are firstly discussed. …”
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Inversion of Mechanical Parameters of Tunnel Surrounding Rock Based on Improved GWO-BP Neural Network by Chen Zhang, Qiunan Chen, Wenbing Zhou, Xiaocheng Huang

Subjects: “…inversion of surrounding rock mechanical parameters…”
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Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure by Sophea Boeut, Teppei Oshima, Yoshiaki Fujii, Jun-ichi Kodama, Daisuke Fukuda, Hiroyuki Matsumoto, Kazumi Uchida, Anjula B. N. Dassanayake

“…However, it has not been verified whether the transient stress disturbances induce an increase or decrease in the rock permeability. In this study, the permeability values of intact and triaxially fractured Kushiro Cretaceous sandstone and Shikotsu welded tuff were measured before and after transient axial stress or pore pressure disturbances to clarify the effects of transient stress disturbances on rock permeability. …”
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Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios by Tuo Wang, Zhanguo Ma, Peng Gong, Ning Li, Shixing Cheng

“…In underground mining and roadway support engineering of coal mine, the coal and rock layers bear loads together; therefore, the deformation and mechanical characteristics of the coal-rock combined bodies are not the same as those of the pure coal or rock bodies. …”
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Geological Conditions and Sedimentary Models of Oligocene and Eocene Effective Source Rocks in the Northern Yinggehai Basin by Jianxiang Pei, Gaowei Hu, Zhipeng Huo, Zhihong Chen, Yabing Chen, Xiaofei Fu, Weihong Wang, Haiyu Liu, Yanan Wang, Jingshuang Luo, Guofei Chen

Subjects: “…Oligocene marine–continental source rocks…”
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Experimental Study on the Influence Mechanism of the Structural Plane to Rockbursts in Deeply Buried Hard Rock Tunnels by Guangtan Cheng, Jian Zhang, Qiang Gao, Chuanxiao Liu

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Particle Flow Code Simulation of the Characteristics of Crack Evolution in Rock-Like Materials with Bent Cracks by Zhanguo Ma, Shixing Cheng, Peng Gong, Jun Hu, Yongheng Chen

“…The distribution and propagation of rock cracks have a significant impact on geotechnical engineering. …”
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Study on Failure Characteristics and Rock Burst Mechanism of Roadway Roof under Cyclic Dynamic Load by Chunmei Zheng, Jiayan Zheng, Xiaojuan Peng, Lei Zhou

“…Rock burst is a catastrophic phenomenon that often occurs in underground rock mass engineering. …”
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Study on the Deformation Mechanism of Soft Rock Roadway under Blasting Disturbance in Baoguo Iron Mine by Hong-di Jing, Yuan-hui Li, Kun-meng Li

“…In order to study the deformation mechanism of soft rock roadway in underground mines, it is necessary not only to study the influence of the dynamic disturbance caused by the cyclic mining blasting vibration on the stability of the soft rock roadway but also to study the degradation of the roadway surrounding rock itself and other factors. …”
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Effect of Wetting-Drying Cycle on the Deformation and Seepage Behaviors of Rock Masses around a Tunnel by Qingzhen Guo, Haijian Su, Hongwen Jing, Wenxin Zhu

“…Furthermore, the displacement of the rock mass decreases gradually with the increasing distance from the tunnel surface. …”
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Toward Sustainable Mining: Repurposing Benguerir’s Phosphate Mine Waste Rock for Road Subgrade Construction by Inabi Omar, Khalil Abdessamad, Benzaazoua Mostafa, Taha Yassine

“…Road construction may find use for Phosphate Mine Waste Rocks (PMWR) as an alternate secondary raw material source. …”
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Numerical Test Research on Loading Rate Effect of Rock Mass with Transfixion Sawtooth Structural Plane by Dongsong Li, Yanhong Du, Feng Chen, Tianhui Ma

“…In order to study the mechanical characteristics difference between the rock mass with this kind of structural plane and other rock masses, the intact numerical specimen (sample A) of no structural plane and the numerical specimen (sample B) with smooth structural plane are also simulated. …”
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Type I Fracture Toughness Test of Rock-like Materials Based on the Particle Flow Method by Ling Yue, Bangyong Yu, Chengxi Zhao, Fei Guo, Fei Huang

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Triaxial Test and Mechanical Analysis of Rock-Soil Aggregate Sampled from Natural Sliding Mass by Shuling Huang, Xiuli Ding, Yuting Zhang, Wei Cheng

“…Rock-soil aggregate, as a specific geomaterial, exhibits complicated mechanical behavior. …”
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Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test by Qunlei Zhang, Zihan Zhi, Chun Feng, Ruixia Li, Jinchao Yue, Junyu Cong

“…In this study, the continuum-discontinuum element method (CDEM) was used to investigate the tensile fracture mechanism of rock materials. An isotropic rock disk model and models considering different foliation inclinations were established, and three schemes were used to simulate the rock fracturing in Brazilian test. …”
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