Study on Dynamic Constitutive Model of Weakly Consolidated Soft Rock in Western China by Lei Wang, Hongming Su, Yue Qin, Shiguan Chen

“…It was also found that the constitutive equation was applicable to express the dynamic mechanical properties of rock-like materials such as hard rock, soft rock, frozen soil, raw coal, and concrete. …”
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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. …”
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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. …”
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Effects of Thermal and Stress Cycles on the Mechanical Properties and Acoustic Emission Characteristics of Rocks by Xianwei Meng, Xinran Zhang, Mingbo Chi, Kun Du

“…The surrounding rock of underground rock chamber is frequently affected by disturbance load and circulating temperature; it is meaningful to study the mechanical properties of surrounding rock under these conditions for the construction of a safe and effective underground chamber. …”
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Strength Characteristics of Nonpenetrating Joint Rock Mass under Different Shear Conditions by Qingzhi Chen, Yuanming Liu, Shaoyun Pu

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Numerical Simulation of the Supporting Effect of Anchor Rods on Layered and Nonlayered Roof Rocks by Chao Yuan, Lei Fan, Jian-feng Cui, Wei-jun Wang

“…In order to clarify the influence of anchor bolts on the supporting effect of the layered weak roof and surrounding rock of nonlayered roof with good integrity, the mechanical model of the roadway with nonlayered homogeneous roof and layered weak roof was established using FLAC3D. …”
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Surrounding Rock Movement of Steeply Dipping Coal Seam Using Backfill Mining by Wenyu Lv, Kai Guo, Jianhao Yu, Xufeng Du, Kun Feng

“…The movement of the overlying strata in steeply dipping coal seams is complex, and the deformation of roof rock beam is obvious. …”
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A Method and Equipment for Continuously Testing the Permeability Coefficient of Rock and Soil Layers by Wei Chen, Datian Cui, Meng Xu, Rongchao Xu

“…The water pressure test and steady-flow pumping test are still commonly used for measuring the permeability coefficient of rock and soil strata. Limited by the fact that the average value of the permeability coefficient could be obtained only by this testing method, the accuracy of the experimental results of the permeability coefficient for special rock and soil strata is not good. …”
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Experimental Study on Seepage Anisotropy of a Hexagonal Columnar Jointed Rock Mass by Yanxin He, Zhende Zhu, Wenbin Lu, Yuan Tian, Xinghua Xie, Sijing Wang

“…Many columnar jointed rock masses (basalt) are present at the Baihetan hydropower dam site, and their seepage characteristics have a significant impact on the project’s safety and stability. …”
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Prediction of Grade Classification of Rock Burst Based on PCA-SSA-PNN Architecture by Zhenyi Wang, Yalei Wang, Xiaoliang Jin

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Investigations of Coal-Rock Parting-Coal Structure (CRCS) Slip and Instability by Excavation by Guang-Jian Liu, Heng Zhang, Ya-Wei Zhu, Wen-Hao Cao, Xian-Jun Ji, Cai-Ping Lu, Yang Liu

“…The following main results are addressed: (1) the slip and instability of CRCS induced by excavation are due to stress release, and the damage of the rock parting is partitioned into three parts: shear failure zone, slipping zone, and splitting failure zone from inside to outside with slip; (2) the slip and instability process of CRCS is accompanied by initiation, expansion, and intersection of shear and tensile cracks. …”
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Experimental Research on Mechanical and Energy Characteristics of Reinforced Rock under Dynamic Loading by Xinxi Liu, Yu Li, Fujun Zhao, Yanming Zhou, Weiwei Wang, Shengnan Li

“…In this paper, with sandstone as matrix and steel bar as bolt, the dynamic compression test of reinforced rock was carried out by using a 50 mm rod diameter split Hopkinson pressure bar (SHPB) test device. …”
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Analysis of Surrounding Rock Pressure of Deep Buried Tunnel considering the Influence of Seepage by Qingchen Yao, Yukun Ma, Zongyang Xiao, Zudi Zhang, Yaxin Lu, Chenyang Liu

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Experimental and Numerical Evaluation of Rock Dynamic Test with Split-Hopkinson Pressure Bar by Kang Peng, Ke Gao, Jian Liu, Yujiao Liu, Zhenyu Zhang, Xiang Fan, Xuyan Yin, Yongliang Zhang, Gun Huang

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Study on the Influences of Empty Hole and In Situ Stress on Blasting-Induced Rock Damage by Ningkang Meng, Jian-biao Bai, Wenlong Shen, Yong Chen, Xiangyu Wang, Wenda Wu, Bowen Wu

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Study on Impact Tendency of Coal and Rock Mass Based on Different Stress Paths by Chengliang Zhang, Danyong Ye, Ping Yang, Shunchuan Wu, Chao Wang

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A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams by Hongjun Li, Hong Zhong, Zuwen Yan, Jianming Zhao

“…Detailed comparison between the proposed method and existing methods is performed via the analysis of two typical dams, that is, a virtual rock-fill dam with a height of 100 m which is assumed to be situated on rock formation and a real core rock-fill dam with a height of 150 m built on deep overburden layers. …”
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Interfacial bond properties between polypropylene fiber mortar and rock with different roughness by Jianliang Hu, Yunchao Huang, Xiuru Wang, Yuhui Liu, Shihui Yu, Shizhao Shen, Weijie Pan, Sheng Chen, Yunshan Shen

“…Fibers are very effective in improving the quality of the interface; however, to promote the application of fiber mortar (FM) in tunnel lining reinforcement, it is necessary to study the bonding performance between FM and rock. The mechanical properties of ordinary mortar (OM) and FM were investigated, and bonding performance tests were conducted. …”
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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

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Deformation and Failure Mechanism of Surrounding Rock in Mining-Influenced Roadway and the Control Technology by Jicheng Feng, Shuaifeng Yin, Zhiheng Cheng, Jianjun Shi, Haoyu Shi, Haitao Xu, Shuying Guo

“…For the surrounding rock control in the mining-influenced roadway, it is advised to take the following methods: firstly, it is necessary to consider how to reduce or remove the influence of mining on surrounding rock, improve the stress environment of surrounding rock, and reduce the failure depth of the plastic zone, so as to better maintain the roadway. …”
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