Results 11 to 20 of about 3,819,291 (249)
Shock and Vibration, 2022 The use of polyenergy water pressure controlled blasting technology in tunnel construction is gradually being promoted, and the technology is often used in hard rock, and the mechanism of rock breaking in fractured sandstone strata is still lacking ...
Qingbiao Wang +9 more
doaj +2 more sources
Research on rock breaking mechanism of PDC cutter under the action of ultrasonic vibration. [PDF]
PLoS OneUltrasonic vibration technology has significant potential for breaking hard rocks. Understanding the optimal frequency for rock breaking under ultrasonic vibration can significantly reduce the cost of rock breaking and extend the service life of ...
Zhang R +6 more
europepmc +2 more sources
Axial load transfer mechanism of rock bolts
, 2023 Rock bolts are widely used in mining and geotechnical engineering. They can effectively improve the stability of rock mass, reducing the rock mass deformation, and resulting in improvements in safety, cost and time.
Nourizadeh, Hadi
core +1 more source
Gauge invariant accounts of the Higgs mechanism [PDF]
, 2011 The Higgs mechanism gives mass to Yang-Mills gauge bosons. According to the conventional wisdom, this happens through the spontaneous breaking of gauge symmetry.
Ward Struyve, Struyve, Ward
core +1 more source
Rock breaking mechanism of composite impact of full-size PDC bit based on finite element analysis
, 2021 In order to solve the problems of low rock breaking efficiency in hard formation and the decrease of bit life caused by stick-slip vibration of drilling tools, the full-size bit composite impact rock breaking mechanism was studied by finite element ...
Shijun, HAO, Xu, PENG
core +1 more source
International Journal of Mining Science and Technology, 2023 When the traditional drill and blast method is applied to rock crushing projects, it has strong vibration, loud noise and dust pollution, so it cannot be used in densely populated areas such as urban public works.
Xiaofei Wang +4 more
doaj +1 more source
International Journal of Mining Science and Technology, 2022 CO2 drilling is a promising underbalance drilling technology with great advantages, such as lower cutting force, intense cooling and excellent lubrication.
Can Cai +4 more
doaj +1 more source
Biosurface and Biotribology, 2021 The purpose of this study is to achieve better understanding of associated mechanisms and to recommend and identify new strategies to develop new rock breaking technology for Tunnel Boring Machines (TBMs).
Jing Zheng +5 more
doaj +1 more source
, 2022 The thermomechanical (TM) coupling effects of rock bursts have attracted considerable attention from researchers owing to the high geothermal and geostresses in deep tunnels in regions such as Western China.
Meiben Gao +4 more
core +1 more source
Establishment of tunnel-boring machine disk cutter rock-breaking model from energy perspective
Advances in Mechanical Engineering, 2015 As the most important cutting tools during tunnel-boring machine tunneling construction process, V-type disk cutter’s rock-breaking mechanism has been researched by many scholars all over the world. Adopting finite element method, this article focused on
Liwei Song, Wei Guo, Dianhua Zhu
doaj +1 more source