Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Zheming Zhu"'
Autor:
Qin Zhou, Zheming Zhu, Wei Liu, Huijun Lu, Zidong Fan, Xiaofang Nie, Cunbao Li, Jun Wang, Li Ren
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 6, Pp 783-797 (2024)
Fracture propagation in shale under in situ conditions is a critical but poorly understood mechanical process in hydraulic fracturing for deep shale gas reservoirs. To address this, hydraulic fracturing experiments were conducted on hollow double-win
Externí odkaz:
https://doaj.org/article/523199a916064491983b903c1f51bba5
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 4, Pp 1153-1174 (2024)
The tensile-shear interactive damage (TSID) model is a novel and powerful constitutive model for rock-like materials. This study proposes a methodology to calibrate the TSID model parameters to simulate sandstone. The basic parameters of sandstone ar
Externí odkaz:
https://doaj.org/article/90677b7f603a44f688116adb1ca89146
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 286-302 (2024)
Rock mass may be exposed to high temperature and cooled by water in fire, geothermal resource exploitation and deep underground engineering, which affects the safety of these engineering. In this study, cracked straight through Brazilian disc (CSTBD)
Externí odkaz:
https://doaj.org/article/00dd0621cad241e8ae2ac0441f40394b
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03029- (2024)
In tunnelling and mining applications, the rock-shotcrete interface is crucial for structural stability at the initial support stage, but its complex stress distribution remains poorly understood due to the rock surface depressions. This study employ
Externí odkaz:
https://doaj.org/article/6e0ca08c9ad04f9db7293130f1e5b3c8
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 2, Pp 393-409 (2024)
For expedited transportation, vehicular tunnels are often designed as two adjacent tunnels, which frequently experience dynamic stress waves from various orientations during blasting excavation. To analyze the impact of dynamic loading orientation on
Externí odkaz:
https://doaj.org/article/544b23712b5c4d6e81492099db4e8bbf
Publikováno v:
Lithosphere, Vol 2024, Iss 2 (2024)
The Laoheba Phosphate Mine Area in the Sichuan Basin stands as one of China’s primary locations for phosphate extraction, boasting a diverse array of rock types and complex rock layers. In recent years, frequent geological disasters, notably landsl
Externí odkaz:
https://doaj.org/article/4167160dde0144aeae2666114a5bf204
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1410-1424 (2022)
The inherent anisotropy of shale makes it exhibit different mechanical properties when measured in different directions. Generally, the measurements of the anisotropic mechanical properties of shale are generally conducted on cylindrical samples, and
Externí odkaz:
https://doaj.org/article/3c62771ff3b7493f855af415cd1e03e4
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 5, Pp 1447-1460 (2022)
Cracked straight-through Brazilian disc (CSTBD) samples prepared using two rock materials were used for thermal treatment from room temperature to 700 °C. Uniaxial splitting experiments were performed using an automatic electro-hydraulic servo press
Externí odkaz:
https://doaj.org/article/120a8d9585fa4efe88f7a90df05312c3
Autor:
Duanying Wan, Meng Wang, Zheming Zhu, Fei Wang, Lei Zhou, Ruifeng Liu, Weiting Gao, Yun Shu, Hu Xiao
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 5, Pp 1097-1114 (2022)
Three-dimensional rock fracture induced by blasting is a highly complex problem and has received considerable attention in geotechnical engineering. The material point method is firstly applied to treat this challenging task. Some inherent weaknesses
Externí odkaz:
https://doaj.org/article/e812be6c84be431992a8a6e2ebec5017
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 2, Pp 346-365 (2022)
Tunnels in fractured rock masses are typically damaged by dynamic disturbances from various directions. To investigate the influence of blasting load directions on the stability of a tunnel with a pre-crack nearby, blasting tests were conducted on th
Externí odkaz:
https://doaj.org/article/dd57f44879c34cf2a535977790be2dbd