Zobrazeno 1 - 10
of 146
pro vyhledávání: '"coal rock combination"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 12, Pp 39-47 (2024)
In order to study the creep disturbance characteristics of coal-rock combination body with different coal body heights, the uniaxial compression creep disturbance test of coal-rock combination body was carried out by using the rock rheological distur
Externí odkaz:
https://doaj.org/article/4e1b0c403a094603a0a410c8a67e0e11
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract The instability and failure processes of coal-rock combinations are accompanied by the release of acoustic emission (AE) and infrared radiation (IR) signals. To investigate the characteristics of AE and IR signals during the failure process
Externí odkaz:
https://doaj.org/article/5212f768c1d045d088bbd0d14aca3fcb
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 97-107 (2024)
Coal mining engineering involves complex stress structure time effect issues, which are closely related to the occurrence and prevention of rock burst disasters. Therefore, this study conducts experimental research on the stress structure time effect
Externí odkaz:
https://doaj.org/article/83a2c28c5c4d4484bc46de372f917594
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-16 (2024)
Abstract The dynamic disasters of deep mining coal and rock mass are frequent and easy to be instable. Aiming at the deformation of coal-rock roadway under the coupled static and dynamic load, a new equipment which can simulate the actual situation d
Externí odkaz:
https://doaj.org/article/edab4f4d97ce4064ad4b0cbc7f3d3984
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 11, Pp 71-83 (2023)
For the rock burst disaster problems caused by unloading disturbance of deep roadway excavation, the study on the deformation and fracture mechanism of roadway surrounding rock under different unloading conditions was carried out. Taking the coal-roc
Externí odkaz:
https://doaj.org/article/949ec9aea43f495fb1c272cb6bf77514
Publikováno v:
Meitan xuebao, Vol 48, Iss 4, Pp 1487-1501 (2023)
The uniaxial compression test of coal and rock combination was carried out in order to clarify the influence mechanism of the contact surface mechanical properties on the rock-burst tendency of the coal rock combination, and the contact surfaces with
Externí odkaz:
https://doaj.org/article/59da241f83f94a659366267e27875f1a
Autor:
WANG Yanhui, DANG Chongzhe
Publikováno v:
Meikuang Anquan, Vol 54, Iss 3, Pp 147-152 (2023)
The heterogeneous structure in the coal pillar often affects the safety production of the working face. In order to study the influence of heterogeneous structure on the strength and failure evolution characteristics of coal rock combination, a coal
Externí odkaz:
https://doaj.org/article/2104626475984f9a9072902fc378dc95
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 1, Pp 105-116 (2023)
The key to safe and efficient mining of steeply dipping coal seams is an effective control of surrounding rock. Revealing the dip effect on mining mechanical behavior of coal-rock combination are the basis for the multi-scale surrounding rock collabo
Externí odkaz:
https://doaj.org/article/1330fab536034aeba02c0fef0198136e
Autor:
Long Tang, Shihao Tu, Hongsheng Tu, Kaijun Miao, Wenlong Li, Hongbin Zhao, Jieyang Ma, Lei Zhang
Publikováno v:
Fractal and Fractional, Vol 8, Iss 4, p 240 (2024)
In order to explore the influence of dip angles on the deformation and failure of a coal–rock combination, uniaxial compression experiments were carried out on a coal–rock combination with different dip angles, and the acoustic emissions (hereina
Externí odkaz:
https://doaj.org/article/5ce7f9ebaeaa4ee18f6ca79144c236c0
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