Zobrazeno 1 - 10
of 388
pro vyhledávání: '"Attenuation law"'
Autor:
Xu Liang, Jian Xu, Yapeng Zhang, Xuetao Zhou, Kuangqin Xie, Zonghao Yuan, Min Zhang, Jian Wu, Long Liu
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Vibration caused by shield tunneling construction have adverse impacts on surrounding environment. To ascertain the influence of shield tunneling construction on ambient vibration, based on the shield tunnel project of Zhijiang Road in Hangzhou, the
Externí odkaz:
https://doaj.org/article/30461537811c46869016e7f1d4513b9f
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
This study established a numerical model that considers elevation conditions and slope shape factors by the modified Sadovsky formula to analyze the vibration attenuation law of open-pit slopes under blasting vibration conditions. The blasting excava
Externí odkaz:
https://doaj.org/article/c7b94988729a426081c1b50de7690ef0
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 9, Pp 121-128 (2023)
Coal reservoirs with high gas content and low permeability seriously restrict the efficient production of coal and coalbed methane. It is necessary to fracture and enhance the permeability of coal reservoirs. Aerospace solid propellant deflagration c
Externí odkaz:
https://doaj.org/article/0506482e34824614a615bdf0de3620c7
Autor:
Liang-quan Wang, De-ren Kong
Publikováno v:
Defence Technology, Vol 24, Iss , Pp 340-348 (2023)
There are great differences in the distribution characteristics of shock waves produced by ammunition explosions at different altitudes. At present, there are many studies on plain explosion shock waves, but there are few studies on the distribution
Externí odkaz:
https://doaj.org/article/372923c781b441d68c2e5ef7a5eb8403
Autor:
Xiaoming Guan, Huawei Xu, Hongxian Fu, Wenjun Zhang, Pengfei Li, Hao Ding, Ke Yu, Sulei Zhang
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02662- (2023)
Vibration induced by near-field tunnel blasting can easily damage the surrounding rockmass. The vibration response, damage characteristics and attenuation law in front and rear of the tunnel face were studied under different types of holes blasting.
Externí odkaz:
https://doaj.org/article/0b9935be52f74b2b947fbdfd29c5d3b8
Publikováno v:
Meikuang Anquan, Vol 53, Iss 11, Pp 36-41 (2022)
In order to study the migration and attenuation law of coal and gas two-phase flow after coal and gas outburst, the characteristics of migration and separation of pulverized coal after outburst and the evolution law of impact pressure of coal and gas
Externí odkaz:
https://doaj.org/article/4952e99d70c54c4e8cab8cec95ebc6de
Autor:
Liangquan Wang, Deren Kong
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Introduction: Seismic waves generated by shallow underground explosions propagate differently from those generated by surface explosions. Thus, an accurate understanding of the propagation laws of seismic waves generated by explosions at various buri
Externí odkaz:
https://doaj.org/article/f2dffa7e9d8b4e20a69077b64011af67
Publikováno v:
Sensors, Vol 24, Iss 6, p 1727 (2024)
The evaluation of blasting vibrations primarily hinges on two physical quantities: velocity and acceleration. A significant challenge arises when attempting to reference the two types of vibration data in relation to one another, such as different ty
Externí odkaz:
https://doaj.org/article/8af32bfa967e424bbb899ef0d0c51a78
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Publikováno v:
矿业科学学报, Vol 7, Iss 4, Pp 490-497 (2022)
Along with the gradual normalization of coordinated cross-mining of multiple mineral resources, the safety situation of natural gas wells has become increasingly serious. Taking coal-gas cross-mining in the Ordos Basin as the research object, this pa
Externí odkaz:
https://doaj.org/article/5ae3e2fbc0514b20890977e4ded0fbfe