Zobrazeno 1 - 10
of 8 995
pro vyhledávání: '"uniaxial compression"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract To ensure that the discrete element model of the coal wall accurately reflects the actual cutting process of coal and rock during virtual prototype simulation of mining equipment, this study aims to expedite the development of intelligent mi
Externí odkaz:
https://doaj.org/article/d1541d5aed644396bfac3b638e78402d
Autor:
Xiaofang Nie, Dong Wang, Song Yuan, Liangpu Li, Zhilong Zhang, Zidong Fan, Qin Zhou, Meng Wang, Li Ren
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 10, Pp 4247-4260 (2024)
Granitic veins (GVs) have a significant influence on the mechanical responses of tunnels excavated in granitic strata. Distinguishing the mechanical properties of host granites (HGs), GVs and vein-granite interfaces (VGIs) is critical. For this, this
Externí odkaz:
https://doaj.org/article/a3fe7830e3cf4a74b963527ef0d71e24
Publikováno v:
Archives of Civil Engineering, Vol vol. 70, Iss No 3, Pp 401-418 (2024)
An in-depth understanding of the mechanical properties and damage and fracture mechanism of selected rocks in a diversion tunnel plays an important role in promoting the efficient construction and safety of rock blasting excavation in a diversion tun
Externí odkaz:
https://doaj.org/article/74730d41a5614a3b82634706c37cd8d4
Autor:
LIU Shuyu, MIAO Yanchun, LI Minghou, LI Beibei, SELYUTINA Nina, SMIRNOV Ivan, LIU Yuanzhen, ZHANG Yu
Publikováno v:
Taiyuan Ligong Daxue xuebao, Vol 55, Iss 5, Pp 892-904 (2024)
Purposes The internally porous and highly thermally stable glazed hollow beads (GHB) can reduce the high temperature damage and deterioration of concrete to a certain extent, and improve the fire resistance of concrete. In order to further clarify th
Externí odkaz:
https://doaj.org/article/2112bc75e5d94e188a5371c515eb2696
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 8, Pp 52-60 (2024)
In response to the deformation and failure of surrounding rock in large section chamber underground roadways of coal mines, this study focuses on the sorting and filling of large section chamber underground roadways in Ulan Mulun coal mine. Similar s
Externí odkaz:
https://doaj.org/article/493211c853e84d33b52726397dd471f8
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 133-145 (2024)
In order to study the size effect law of carbon fiber reinforced polymer (CFRP) constrained coal cylinders, a numerical model of coal circular confined by carbon fiber reinforced polymer (CFRP) sheet is established by a three-dimensional PFC-FLAC cou
Externí odkaz:
https://doaj.org/article/7cf218a78597462881c2cd1f592665c4
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract With regard to deep mining in metal mines, an investigation into the failure mode of deep fractured rock masses and their corresponding acoustic emission signal characteristics is conducted via uniaxial compression tests. Subsequently, a fra
Externí odkaz:
https://doaj.org/article/c49f04c163fe43c88c37a84f6946102d
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 7, Pp 2482-2502 (2024)
Geological exploration cores obtained from shale gas wells several kilometers deep often show different height-diameter ratios (H/D) because of complex geological conditions (core disking or developed fractures), which makes further standard specimen
Externí odkaz:
https://doaj.org/article/8dea54ea0b03454d9793f26aab5c89f5
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract We carried out uniaxial compression tests on brittle red sandstone with different heights. The test results show that the uniaxial compressive strength of rock sample increases first and then tends to be stable with the increase of the size,
Externí odkaz:
https://doaj.org/article/0b7ed70de8314a78a34ed52bb0433beb
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 236-247 (2024)
In order to study the influence law of energy evolution characteristics of coal confined passively by CFRP sheets. A series of uniaxial compression tests of coal confined passively by CFRP sheets were carried out under different loading rates by the
Externí odkaz:
https://doaj.org/article/a1e2ea61e0fb4cba8a0a754bdc70519f