Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Rock dynamic"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract With the increase in mining depth and intensity, dynamic disasters such as rockburst in mines are becoming more severe. Deep resource extraction is characterized by a high in-situ stress geological environment, closely associated with geolog
Externí odkaz:
https://doaj.org/article/94fd61027c664b498b71e4c6fa353e11
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 9, Pp 144-152 (2024)
Electromagnetic radiation (EMR) has proven to be an effective monitoring technology for coal rock dynamic disasters, including underground rock burst and coal and gas outbursts. However, the intricate generation mechanisms of electromagnetic signal,
Externí odkaz:
https://doaj.org/article/8681e2f894634645b1a26c0e442df1e9
Publikováno v:
Open Geosciences, Vol 16, Iss 1, Pp 1-15 (2024)
Quantitative evaluation of rock dynamic disaster intensity is a challenging and difficult task in the field of earth science. In this article, the dynamic compression tests of granite under different impact velocities are carried out, and the energy
Externí odkaz:
https://doaj.org/article/d8431622fe354aa29439163191f444d0
Publikováno v:
Meikuang Anquan, Vol 55, Iss 7, Pp 169-178 (2024)
The shear mechanical parameters of coal are important parameters for analyzing the deformation and stability of coal. In order to study the shear characteristics of straight joints of coal under different normal stress and shear rate conditions, the
Externí odkaz:
https://doaj.org/article/dee3a97782dd4058ba4df5c80817081c
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 46-52 (2024)
In order to study the influence of the coal pillar left over from the mining of the protective layer over a long distance on the mining effect of the protected layer, the coal pillar and Ⅳ5-6-22190 working face of the section with a remaining width
Externí odkaz:
https://doaj.org/article/9cf1afaf87d64b68914aa5d213a93393
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-20 (2024)
Abstract Dynamic failure widely exists in rock engineering, such as excavation, blasting, and rockburst. However, the quantitative measurement of the dynamic damage process using experimental methods remains a challenge. In this study, a SHPB modelin
Externí odkaz:
https://doaj.org/article/7097b7c40b3e435089fd9d764a7cced1
Publikováno v:
Meitan kexue jishu, Vol 51, Iss S2, Pp 50-59 (2023)
In the process of deep mining, the geological type of the mine is complicated. Under the condition of “three heights and one disturbance”, it is easy to cause coal and gas outburst and other coal and rock dynamic disasters near the hidden structu
Externí odkaz:
https://doaj.org/article/6c3b8dbbac654906a1d2096e6c7195af
Publikováno v:
Energy Science & Engineering, Vol 11, Iss 6, Pp 2096-2109 (2023)
Abstract The experimental study on the variation law of coal fracture and stress was carried out in the laboratory and engineering fields, respectively. A multiparameter monitoring system including electromagnetic radiation and a high‐speed camera
Externí odkaz:
https://doaj.org/article/ef6537a124864a46b2e9461013db25d4
Publikováno v:
Meitan xuebao, Vol 48, Iss 5, Pp 1825-1845 (2023)
As shallow coal resources are gradually exhausted in China, the shift of coal mining from shallow to deep will become a new normal condition for ensuring the energy demand of China. Aiming at the problems of coal and gas outbursts, rockburst, and com
Externí odkaz:
https://doaj.org/article/ef72055be8d44beaa900d54c93ad7d44
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 9323-9338 (2023)
To study the physical properties and dynamic mechanical response characteristics of rock materials in seasonally frozen regions, density, P-wave velocity, nuclear magnetic resonance, and dynamics Brazilian disc tests were carried out on sandstones tr
Externí odkaz:
https://doaj.org/article/b0973e834120485caf3983757cb1a3f6