Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Triaxial loading"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract Since accidents such as roof caving, rock fragmentation, and severe deformation are particularly likely to occur during roadway excavation in soft and thick coal seams, grasping the range and distribution of deformation and fracturing of sur
Externí odkaz:
https://doaj.org/article/a9dfa6e9c62548d49baf636677e9b933
Publikováno v:
Archives of Civil Engineering, Vol vol. 70, Iss No 2, Pp 233-254 (2024)
Take the metamorphic sandstone as the reference object, by making rock like samples with fractures, the conventional triaxial loading and unloading test and PFC numerical simulation of rock like sample with single fracture were conducted, and the eff
Externí odkaz:
https://doaj.org/article/502da1d6d13f44dea376fe269017a548
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:
Guang-an Zhu, Jin-peng Han
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 9, Iss 1, Pp 1-22 (2023)
Abstract The drilling cuttings weight index fails to reflect coal’s stress conditions under water-rich environments, potentially undermining the drilling cutting method’s reliability for monitoring and early warning of rockburst risks. We integra
Externí odkaz:
https://doaj.org/article/ee32ac2130d943b6b41583271a447634
Publikováno v:
矿业科学学报, Vol 8, Iss 6, Pp 828-837 (2023)
This study proposes to explore the coal mechanics and seepage characteristics under the coupling of water-saturation, freeze-thaw and different temperatures. The original coal of 9105 working face in Wangzhuang Coal Mine was taken as the research obj
Externí odkaz:
https://doaj.org/article/432721f26c9a4a40a9646a1a7943c8a8
Publikováno v:
Alexandria Engineering Journal, Vol 77, Iss , Pp 581-591 (2023)
In this paper, triaxial loading and unloading tests under different conditions were carried out to explore the deformation and failure characteristics of hard rock marble, and the acoustic emission information of the test process was monitored synchr
Externí odkaz:
https://doaj.org/article/db83fcce6b93432493b1aad681385dd7
Publikováno v:
矿业科学学报, Vol 8, Iss 4, Pp 474-486 (2023)
This experimental study probes into the evolution patterns of fine damage and mechanical and seepage characteristics of coal rocks using the coal rock triaxial servo experiment system by employing three types of pretreatment methods, namely heating,
Externí odkaz:
https://doaj.org/article/d441785ac36940499181fa872cd6bda0
Publikováno v:
Meitan xuebao, Vol 48, Iss 4, Pp 1502-1515 (2023)
In the process of underground excavation, the surrounding rock is in a very complex stress environment, especially under the influence of its anisotropy, the occurrence of dynamic disaster is hidden. In this paper, the loading and unloading tests of
Externí odkaz:
https://doaj.org/article/0eafe765f74e46ec8cd7ff1202bd962c
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3849 (2024)
Shale is composed of a rock matrix and bedding planes with a layered structure, resulting in significant anisotropy in its mechanical properties. In order to study the anisotropic mechanical properties of shale, the shale samples were prepared in dif
Externí odkaz:
https://doaj.org/article/e37a36fe341543fc81f3cbcf362f39f0