Zobrazeno 1 - 10
of 2 127
pro vyhledávání: '"rock fracture"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 10, Pp 4004-4016 (2024)
The geometric properties of fracture surfaces significantly influence shear-seepage in rock fractures, introducing complexities to fracture modelling. The present study focuses on the hydro-mechanical behaviours of rough rock fractures during shear-s
Externí odkaz:
https://doaj.org/article/c93f8bba91794a3f9fd61d95a3190377
Autor:
Wei Liu, Liqiang Ma, Michel Jaboyedoff, Marc-Henri Derron, Qiangqiang Gao, Fengchang Bu, Hai Sun
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 8, Pp 1059-1081 (2024)
The infrared radiation temperature (IRT) variation concerning stress and crack evolution of rocks is a critical focus in rock mechanics domain and engineering disaster warning. In this paper, a methodology to extract the key IRT features related to s
Externí odkaz:
https://doaj.org/article/1ff7d92271714ab38b87faf89a3370a7
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 108-115 (2024)
Aiming at the influence of hard and thick roof fracture and structural evolution on the impact of working face, taking the hard and thick roof condition of 63 upper 05 working face in Dongtan Coal Mine as the engineering background, the critical cond
Externí odkaz:
https://doaj.org/article/d16b498ccef441729cb1ad0d26a200df
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 8, Pp 2922-2934 (2024)
Photogrammetry, reconstructing three-dimensional (3D) models from overlapping two-dimensional (2D) photos, finds application in rock mechanics and rock engineering to extract geometrical details of reconstructed objects, for example rock fractures. F
Externí odkaz:
https://doaj.org/article/8893c31dfb294764a6363babffb52118
Autor:
Yuekun Xing, Bingxiang Huang, Guangqing Zhang, Binghong Li, Hang Xu, Xuejie Jiao, Yang Yu, Taisen Han, Jinlong Chen
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 6, Pp 731-746 (2024)
Identifying the real fracture of rock hidden in acoustic emission (AE) source clusters (AE-depicted microcrack zone) remains challenging and crucial. Here we revealed the AE energy (representing dissipated energy) distribution rule in the rock microc
Externí odkaz:
https://doaj.org/article/a81d9963f8b44304a2db2748c0447c20
Autor:
Xuezai Pan, Guoxing Dai
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
This study focuses on obtaining differences in rock fracture surface morphology under various loading directions and speeds to infer rock damage mechanics by using micro-electro–mechanical system (MEMS) sensors, which can measure stress, strain, an
Externí odkaz:
https://doaj.org/article/810a2a8da63c483d8e86a5d84ee0d3a9
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 5, Pp 2258-2271 (2024)
Abstract The failure of coal mine overburden is mainly caused by fractures under bending loads. The energy evolution characteristics of coal and rock fractures are closely related to coal mine disasters such as rock burst. To obtain the characteristi
Externí odkaz:
https://doaj.org/article/25db76ad2f9340fa908eb463f4779ebc
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1689-1703 (2024)
Disc cutter has a better hard rock breaking performance due to its undercutting mode. To further improve the mechanized excavation efficiency of hard rock roadway in underground coal mine, the rock wedged performance of disc cutter assisted by circum
Externí odkaz:
https://doaj.org/article/cdd848dfb9c74ab7ad82bb282bc7bdff
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 3, Pp 561-576 (2024)
Abstract An accurate understanding of the heat transfer of water through rock fractures is essential for the extraction and utilization of thermal energy from high‐temperature rock masses. A systematic numerical simulation based on the double‐rou
Externí odkaz:
https://doaj.org/article/8f133f497e4e4d0990edb941446d3155
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 4334-4349 (2024)
The exploitation of shear dilatation behavior exhibited by natural rock fractures can serve as an effective strategy for stimulating reservoirs in the enhanced geothermal systems (EGS). However, few studies have considered the shear dilatation charac
Externí odkaz:
https://doaj.org/article/e1f9dc43c6714702963e7795dea66c05