The Propagation Behavior of Hydraulic Fracture in Rock Mass with Cemented Joints by Yongxiang Zheng, Jianjun Liu, Yun Lei

Get full text

Prediction Model of Drilling Performance for Percussive Rock Drilling Tool by Dae-Ji Kim, Jaewon Kim, Booyeong Lee, Min-Seok Shin, Joo-Young Oh, Jung-Woo Cho, Changheon Song

“…A drill bit motion model was developed to represent the dynamics of a drill bit impacted by a dropped piston and explain the impact stress propagation and rock-crushing mechanism. The rock-crushing effect of the drill button bit was measured through a piston drop test. …”
Get full text

Numerical Modeling and Stability Analysis of Surrounding Rock of Yuanjue Cave by Zhigang Meng, Fangzheng Fan, Xuebin Cui, Shu Tao, Yi Cao

“…Yuanjue Cave, located in Big Buddha Bay, Mount Baoding, Dazu Rock Carvings Area, has extremely high historical, artistic, and religious value and is an important grotto cultural relic in China. …”
Get full text

From rock to living systems: Lanthanides toxicity and biological interactions by Marian Constantin, Mariana F. Chioncel, Livia Petrescu, Corneliu Ovidiu Vrancianu, Mihaela Paun, Roxana-Elena Cristian, Manuela Sidoroff, Mihai Viorel Dionisie, Mariana Carmen Chifiriuc

Get full text

Damage Features of Altered Rock Subjected to Drying-Wetting Cycles by Zhe Qin, Xuxin Chen, Houli Fu

“…The effects of drying and wetting cycles on the mechanical parameters of pit rock were tested. Interactions of the hydrochemical environment, due to the dissolution of tailings, and drying and wetting cycles caused degradation of mechanical properties in the rock. …”
Get full text

Experimental study on pressure relief blasting in rock-blast tunnel by ZhenLin Chen, Wenjing Cai, Meng Wei, Cassandra J. Rutherford, Xiao Zhu, Zelin Wang, Tao Su

Subjects: “…Rock-burst…”
Get full text

Optimal Nozzle Structure for an Abrasive Gas Jet for Rock Breakage by Yong Liu, Juan Zhang, Tao Zhang, Huidong Zhang

“…Improving the efficiency of rock breakage using abrasive gas jets is an essential precondition for future coal-bed methane exploration. …”
Get full text

Experimental and Numerical Investigation of Hard Rock Breakage by Indenter Impact by Hongxiang Jiang, Zhiyuan Cai, Ouguo Wang, Deguang Meng

“…To investigate the effect of indenter shape, impact energy, and impact velocity on the rock breakage performance, a test device for rock fragmentation by indenter impact was developed to obtain the rock breakage volume, depth, and area under different impact conditions. …”
Get full text

Neural network based classification of rock properties and seismic vulnerability by U. Muksin, E. Riana, A. Rudiyanto, K. Bauer, A.V.H. Simanjuntak, M. Weber

Subjects: Get full text

Experimental Investigation into the Influences of Weathering on the Mechanical Properties of Sedimentary Rocks by Xiaoshuang Li, Yingchun Li, Saisai Wu

“…The time-dependent behaviors of the sedimentary rocks which refer to the altering of the mechanical and deformable properties of rock elements in the long-term period are of increasing importance in the investigation of the failure mechanism of the rock strata in underground coal mines. …”
Get full text

Numerical Simulation Modeling of Carbonate Reservoir Based on Rock Type by Peiqing Lian, Cuiyu Ma, Bingyu Ji, Taizhong Duan, Xuequn Tan

“…There are many types of carbonate reservoir rock spaces with complex shapes, and their primary pore structure changes dramatically. …”
Get full text

An Improved Algorithm in Porosity Characteristics Analysis for Rock and Soil Aggregate by Yanfang Wu, Xiao Li, Yu Wang, Bo Zhang

“…The rock and soil aggregate (RSA) is a special inhomogeneous multiphase geomaterial. …”
Get full text

The Analytical Approach to Evaluate the Load-Displacement Relationship of Rock Bolts by Jianhang Chen, Shengli Yang, Hongbao Zhao, Junwen Zhang, Fulian He, Shuaifeng Yin

“…Fully grouted rock bolts are widely used in civil engineering and mining engineering, playing a significant role in keeping the stability and safety of excavations. …”
Get full text

Damage of Green Synthetic Cement Slurry to Clastic Rock Reservoir by Meng Xu, Xin Tan, Libo Yang, Hanlie Cheng, David Cofell

“…In order to solve this problem, this study takes a typical clastic rock block in an oilfield in western China as the research object and carries out a geological survey of fracture development, pressure deficit, and cement slurry permeability leakage in the reservoir. …”
Get full text

Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage by Q. Liu, W. Chen, J. K. Guo, R. F. Li, D. Ke, Y. Wu, W. Tian, X. Z. Li

“…Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration. …”
Get full text

Study on the Rock Size Effect of Quasistatic and Dynamic Compression Characteristics by Jun Zhou, Xiangrui Meng, Chongyan Liu, Zhixi Liu, Wensong Xu, Xiang Cheng

“…To study the size effect of rock under quasistatic and dynamic conditions, the changes in compressive strength with the change in specimen size are measured. …”
Get full text

Side Friction of Rock-Socketed Piles Involving Thick Sediment by Tie Hang Wang, Liang Zhang, Yan Zhou Hao, Xin Jin

“…This paper investigates the skin friction transfer characteristics of the rock-socketed section of a rock-socketed pile resting on thick sediment by conducting in situ core-drilling tests and static loading tests. …”
Get full text

Analysis of External Water Pressure for a Tunnel in Fractured Rocks by Ze-jun Liu, Yong Huang, Ding Zhou, Hong Ge

“…Calculations were based on the integrity and permeability of rocks, the extent of fracture development, and the combination of geological and hydrogeological conditions in the Huizhou pump-storage hydropower station. …”
Get full text

Study on Monitoring Rock Burst through Drill Pipe Torque by Zhonghua Li, Liyuan Zhu, Wanlei Yin, Yanfang Song

“…The results are important for the forecast of rock burst in coal mine.…”
Get full text

Physical and Mechanical Performance of Frozen Rocks and Soil in Different Regions by Junhao Chen, Lexiao Wang, Zhaoming Yao

“…The failure strain of deep Cretaceous and Jurassic rocks is between 1% and 2%, and the breaking and sudden collapse of surrounding rocks should be prevented.…”
Get full text