Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Zhaofei CHU"'
Publikováno v:
Shuiwen dizhi gongcheng dizhi, Vol 51, Iss 3, Pp 80-89 (2024)
During the excavation process of deep rock masses, the surrounding rock stress field forms alternating zones of stress increase (loading zones) and stress decrease (unloading zones) near the excavation surface, which can easily trigger instability an
Externí odkaz:
https://doaj.org/article/02771ba1d04045bfb88ce854593a55dd
Autor:
Lei Weng, Haoliang Zhang, Zhijun Wu, Jingyu Wang, Longji Wu, Junjie Shi, Zhaofei Chu, Quansheng Liu, Shaokun Ma, Jiabing Zhang
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 4212-4227 (2024)
The flow and diffusion of grout within rock fractures, as well as the shear behavior of the grout-rock interface, are notably influenced by grouting conditions, encompassing grouting parameters and geological considerations. Regrettably, owing to con
Externí odkaz:
https://doaj.org/article/10d1f885ae0149caa9c7fcc977decb4f
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 1, Pp 81-101 (2024)
Grouting is a widely used approach to reinforce broken surrounding rock mass during the construction of underground tunnels in fault fracture zones, and its reinforcement effectiveness is highly affected by geostress. In this study, a numerical manif
Externí odkaz:
https://doaj.org/article/6d1aeda549a4488780b5ce0a838b39a4
Publikováno v:
Water, Vol 16, Iss 3, p 366 (2024)
This study focuses on the seismic safety of distributed underground reservoirs in coal mines, especially in scenarios involving the establishment of multiple reservoirs within the same mining area, spanning different coal seams. Dynamic similarity mo
Externí odkaz:
https://doaj.org/article/b9aa50bee74e42e68d37e4e55f98db75
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 2, Pp 323-334 (2022)
Following tunnel excavation and lining completion, fractured surrounding rock deforms gradually over time; this results in a time-dependent evolution of the pressure applied to the lining structure by the surrounding rock. Thus, the safety of the tun
Externí odkaz:
https://doaj.org/article/5be200ab2e314ed3b15c6dafe057f9a3
Publikováno v:
Shock and Vibration, Vol 2023 (2023)
Weak inclusions play a significant role in regulating the deformation and fracturing behavior of rock masses. In this study, sandstone specimens filled with circular inclusions were subjected to diametrical compression until failure. The local strain
Externí odkaz:
https://doaj.org/article/b3062b0c5e5a40dfb61591c98dc50c60
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 13, Iss 6, Pp 1311-1325 (2021)
Real-time perception of rock mass information is of great importance to efficient tunneling and hazard prevention in tunnel boring machines (TBMs). In this study, a TBM–rock mutual feedback perception method based on data mining (DM) is proposed, w
Externí odkaz:
https://doaj.org/article/e1aa36c6b3c841ca9020bf4ca1470aa8
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The impact-induced fragmentation of rock blocks is frequently encountered when the natural hazards (e.g., rockfalls, rockslides, and rock avalanches) occur in mountainous areas. To address the progressive damage and cracking characteristics of rock u
Externí odkaz:
https://doaj.org/article/58e4d7c66ac14dac986cb021f8f58a5e
Publikováno v:
PLoS ONE, Vol 17, Iss 4, p e0266241 (2022)
The impact-induced fragmentation of rock is widely and frequently encountered when natural hazards occur in mountainous areas. This type of fragmentation is an important and complex natural process that should be described. In this study, laboratory
Externí odkaz:
https://doaj.org/article/bc75b0c4b9564bf79defab06f4166e5a
Autor:
Jinglai Sun, Darui Ren, Yu Song, Mingyuan Yu, Zhaofei Chu, Baoguo Liu, Shaogang Li, Xinyang Guo
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
To accurately classify the stability of surrounding rock masses, a novel method (VSV-BDA) based on virtual state variables (VSVs) and Bayesian discriminant analysis (BDA) is proposed. The factors influencing stability are mapped by an artificial neur
Externí odkaz:
https://doaj.org/article/d25ef244349b4b07ac68a4ea53ac25c4