Results 71 to 80 of about 1,604,914 (120)
Meitan xuebaoAfter the excavation of the roadway, the broken expansion and shear expansion of the surrounding rock along the crack surface are the important reasons for the large deformation of the surrounding rock, and the broken expansion and shear expansion of the
Yujie MA +6 more
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Shock and Vibration, 2021 Based on the research background of large section roadway with top coal (LSRTC) in thick coal seam mining in Wangzhuang Coal Mine, Shanxi Province, China, catastrophe characteristics of the surrounding rock of the LSRTC were investigated and summarized ...
Yang Yu +5 more
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Deep Underground Science and Engineering, Volume 5, Issue 3, Page 685-698, September 2026.The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang +5 more
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To investigate the effect of rock mass rheology on the deformation of roadway surrounding rock, the -848 m charging rectifier chamber test roadway in a mine was taken as the engineering case.
Junhui Zou +5 more
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Study on Stress Disturbed Mechanism and Supporting Method of Weakly Cemented Roadway near Chambers
Complexity, 2023 After excavation of the weakly cemented roadway adjacent to the chambers, deformation characteristics such as roof subsidence, roadway extrusion, and floor heave appear, showing the characteristics of large deformation of surrounding rock, long ...
Wei Zhang
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Deep Underground Science and Engineering, Volume 5, Issue 3, Page 787-808, September 2026.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Ecology and Evolution, Volume 16, Issue 9, September 2026.Invasive Ae. albopictus populations demonstrate substantial gene flow within local metropolitan areas, with urban city centers serving as genetic sinks and surrounding suburban and rural regions serving as sources. We show how heterogeneous landscapes shape mosquito population connectivity and migration at fine spatial scales, which is critical for ...
Jessica Y. Ding +3 more
wiley +1 more source
Instability Mechanism and Control Method of Surrounding Rock of Water-Rich Roadway Roof
, 2022 Surrounding rock properties and occurrence stability of a coal seam roof are prerequisites for ensuring the safe and efficient operation of mines. In this study, the mechanisms and control of weakened water-rich roadway roof slabs were investigated ...
Haitao Li +7 more
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Energy Science &Engineering, Volume 14, Issue 9, Page 4470-4485, September 2026.This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin +4 more
wiley +1 more source
Meitan xuebaoThe sedimentary rock strata of the coal measure are generally characterised by significant argillity, high water content and weak lithology. The problem of controlling the stability of the surrounding rock in soft rock argillation roadways has become ...
Guichen LI +6 more
doaj +1 more source