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Zhu Yongjian,Luo Yixin,Zhang Daobing
Strategic Study of CAE 2010, Volume 12, Issue 3, Pages 51-55
Aiming at the locale facts of difficult roof controlling for large span gateway of fully-mechanized coal faces, based on analysis of the influence factors of monolayer strata stability, the numerical simulation soft UDEC3.0 is employed to deeply research influence factors and changing rules of roof stability of the gateway which is composed by some monolayer strata. A new supporting idea of reducing span supporting function by bolts cooperating with anchor cables is brought forward by disposing anchor cables at the appropriate locations, the traditional supporting theory such as suspensory and compounding beam (arch) are still operated at the same time. A good result is achieved after the new supporting idea is applied in the large span gateway of Bulianta Colliery in Shendong diggings.
Keywords: large span roadway roof bolt—cable reducing span support
Ultrasonic linear motor using the L-B mode Langevin transducer with an exponential horn
SHI Shengjun, CHEN Weishan, LIU Junkao, ZHAO Xuetao
Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 212-217 doi: 10.1007/s11465-008-0026-1
Keywords: longitudinal vibration bolt-clamped semiconductor ultrasonic
Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG
Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2, Pages 208-224 doi: 10.1007/s11709-011-0111-0
Keywords: progressive failure weak-broken rock slope model test bolt
Title Author Date Type Operation
Research on bolt-cable reducing span support technology in large span roadway of fully-mechanized coal
Zhu Yongjian,Luo Yixin,Zhang Daobing
Journal Article
Ultrasonic linear motor using the L-B mode Langevin transducer with an exponential horn
SHI Shengjun, CHEN Weishan, LIU Junkao, ZHAO Xuetao
Journal Article