Zobrazeno 1 - 10
of 960
pro vyhledávání: '"cohesive element"'
Publikováno v:
Youqi dizhi yu caishoulu, Vol 31, Iss 6, Pp 168-178 (2024)
Fractured-vuggy carbonate reservoirs are characterized by low porosity， low permeability， and strong heterogeneity. Acid fracturing is the primary technical means to increase the production of this kind of reservoir， and the key to fracturing r
Externí odkaz:
https://doaj.org/article/eb53ff96bc5d44b5ae592812399778a8
Autor:
Wei Li, Xiu-Feng Zhang, Yue-Yong Han, Feng Gao, Ning Zhang, Xiang Li, Yang Chen, Chuan-Cheng Liu, Guang-Peng Li, Bao-Qi Wang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Roof breaking is the root cause of rock burst and mine earthquake. However, the classical “thin plate theory” and “thick plate theory” cannot fully reveal the mechanical mechanism of the influence of roof thickness-span ratio on the
Externí odkaz:
https://doaj.org/article/c7f86ec976bd40848b0da14dc813faf6
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-30 (2024)
Abstract As a typical sedimentary rock, coal seams are usually rich in bedding planes, which significantly affect the propagation process of hydraulic fracture (HF) network and reservoir permeability. In this study, the profile characteristics and th
Externí odkaz:
https://doaj.org/article/51afab511bee4117828a574b1757b799
Autor:
Yang, Taihua a, Gao, Linjie a, b, Liu, Quansheng c, Liu, Bin b, ⁎, Zhou, Yuan b, ⁎, Li, Peng d
Publikováno v:
In Engineering Analysis with Boundary Elements 1 December 2024 169 Part A
Autor:
Ma, Zhengkuo a, Zhang, Chunshun a, b, ⁎, Liu, Zenghui c, Ye, Tong a, Li, Congying d, Wei, Wei a, Dong, Jie e
Publikováno v:
In Engineering Fracture Mechanics 7 February 2025 314
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract The joints are existing throughout the underground rock mass. It is of great significance to investigate the shear performance of the rock mass to maintain the stability of the underground structure. In this study, we conducted orthogonal te
Externí odkaz:
https://doaj.org/article/c30f9c43d51743a8abd3a35d6abe67f7
Autor:
Zhaowei ZHANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 1, Pp 57-64 (2024)
In order to further analyze the propagation path and evolution law of hydraulic fractures in coal rock complex, from the perspective of stress field, coal rock interface strength and coal seam bedding dip angle, a hydraulic fracture model of coal roc
Externí odkaz:
https://doaj.org/article/3e63d3c7a0dc4d728045fe401362ec5a
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-25 (2024)
Abstract Indirect fracturing in the roof of broken soft coal seams has been demonstrated to be a feasible technology. In this work, the No. 5 coal seam in the Hancheng block was taken as the research object. Based on the findings of true triaxial hyd
Externí odkaz:
https://doaj.org/article/34d982475673495e812e24ef1e969768
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 17, Iss 1, Pp 1-16 (2023)
Abstract This study presented a meso-model for the fracture analysis of the reinforced concrete (RC) structure. A modeling method of RC meso-structure was proposed, and the rebars were allowed to separate from the concrete. The model was built using
Externí odkaz:
https://doaj.org/article/04c12c8204a54c468a612d20a196ad53
Autor:
Jianfa Wu, Mingyang Wu, Yintong Guo, Haoyong Huang, Zhen Zhang, Guanghai Zhong, Junchuan Gui, Jun Lu
Publikováno v:
Frontiers in Energy Research, Vol 11 (2024)
With the depletion of conventional reservoir development, reservoir fracturing under deep high geo-stress and high geo-stress difference conditions is receiving increasing attention. Deep reservoirs typically require multi-cluster fracturing to achie
Externí odkaz:
https://doaj.org/article/2df96c302f324b7ba4fde6a529c8476f