Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Lei WENG"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 7, Pp 3102-3117 (2024)
The thermo-mechanical properties of deep reservoir rocks, especially the damage and failure characteristics under heating-cooling cycles, are of great importance to the stability analysis of well wall and the evaluation of geothermal extraction effic
Externí odkaz:
https://doaj.org/article/dad58b2d89cf490ca3d403da040a7391
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:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 5783-5790 (2023)
In this study, the wetting and spreading behavior of AgCuTi ternary alloys on Fe substrate was investigate using a molecular dynamics (MD) modeling method. Modeling indicates that precursor films consisted of single-layer atoms are formed and that th
Externí odkaz:
https://doaj.org/article/b8c61ca8218f4942ab8fe275922982ca
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 1808-1818 (2023)
In this study, the wetting characteristics of molten AgCuTi on different titanium surfaces were investigated in detail using molecular dynamics (MD). The wettability of AgCuTi droplets on Ti (0001), Ti (1 1¯ 00), and Ti (11 2¯ 0) surfaces, as well
Externí odkaz:
https://doaj.org/article/aaeab1aa88b14f5a97711468b5404fee
Publikováno v:
Meitan xuebao, Vol 48, Iss 5, Pp 2179-2193 (2023)
Deep high-temperature rock is often subjected to different cooling mediums, and the deterioration of its mechanical properties is easy to induce some rock mass engineering disasters. Based on the three cooling ways, cooled in an oven, cooled in air a
Externí odkaz:
https://doaj.org/article/0154c7344f1a4540b9d6c8aa1e245ae1
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:
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:
International Journal of Mining Science and Technology, Vol 30, Iss 5, Pp 643-650 (2020)
Coal is a common porous sedimentary rock whose microstructure and mechanical behavior are often affected by high temperature. In order to deeply investigate the effect of high temperature on the structure and mechanical properties of coal, six groups
Externí odkaz:
https://doaj.org/article/66d3a4f72f1a4fd8ad6ce7185398cd94