Results 181 to 190 of about 11,226 (263)

Numerical analysis and engineering application of bolt support technology for controlling coal body sliding. [PDF]

Sci Rep
Wang C, Ma S.
europepmc   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Sustainable Waste Tire Rubber Granule Concrete: Preparation, Mechanical Performance and Field Application for Pressure Relief in High-Ground-Stress Soft Rock Roadways. [PDF]

Materials (Basel)
Qiao WG, Zhao YR, Wu Y, Cheng WM, Zhu YG.   +4 more
europepmc   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

A numerical design framework for unloading excavations in deep potash mining. [PDF]

Sci Rep
Zhang Y, Lapatsin S, Zhuravkov M, Yu G, He Y, Piaredryi P.   +5 more
europepmc   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Deep Caries Management: EFCD-ESE-ORCA S3-Level Clinical Practice Guideline. [PDF]

Caries Res
Schwendicke F, Kosan E, Banerjee A, Baysan A, Bjørndal L, Ceballos L, Duncan HF, Herbst S, Neuhaus KW, O Apos Connell AC, Paris S, Dujic H.   +11 more
europepmc   +2 more sources

Ground Penetrating Radar for Subsurface Utility Detection: Methods, Challenges, and Future Directions. [PDF]

Sensors (Basel)
Gao S, Hu D.
europepmc   +1 more source

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Research on the integrated technology of bearing structure reconstruction and support control in high risk area of top coal roadway in thick coal seam. [PDF]

Sci Rep
Xiaokang S, Bacha S, Heng Z, Xiaojing L, Xiaozhen C, Kai W, Hua Z.   +6 more
europepmc   +1 more source