Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Ke Man"'
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 12, Iss 1, Pp 2590-2606 (2021)
Based on Beishan Exploration Tunnel (BET), the blasting test has been carried out and studied deeply, especially the blasting vibration velocity and excavation damaged zone (EDZ) have been monitored immediately along the blasting cycles. It has obtai
Externí odkaz:
https://doaj.org/article/79f4c4bceeb747068b9722de9a7998b4
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 12, Iss 1, Pp 3205-3223 (2021)
The technical feasibility of drilling and blasting or TBM excavation method is the key to determine the underground engineering. In view of the high strength, high abrasiveness and good integrity of hard rock in site, and considering the damage of su
Externí odkaz:
https://doaj.org/article/31010f987f9346fa8b5f67e1ded33175
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 12, Iss 6, Pp 1201-1213 (2020)
Underground research laboratory (URL) plays an important role in safe disposal of high-level radioactive waste (HLW). At present, the Xinchang site, located in Gansu Province of China, has been selected as the final site for China’s first URL, name
Externí odkaz:
https://doaj.org/article/3a59004d06d4491cb5679eaad3f73203
Publikováno v:
Shock and Vibration, Vol 2022 (2022)
Based on the same blasting vibration signal, the S transform and HHT method have been applied for the time and frequency analysis. Both the S transform and HHT method are analyzed and compared from the point of decomposition path and analysis functio
Externí odkaz:
https://doaj.org/article/e6860e2f6f91492c9cabc8c9cad9c30b
Publikováno v:
Advances in Civil Engineering, Vol 2021 (2021)
Based on wavelet transform, the blasting vibration signals are analyzed here. For millisecond blasting, the blasting effect is mostly affected by the actual delay time. Local characteristics of the analyzed signals could be highlighted by the wavelet
Externí odkaz:
https://doaj.org/article/d919740703a34679992fe0e722964fa8
Publikováno v:
Geofluids, Vol 2021 (2021)
Based on the sandstone from the slope of Baorixile open-pit mining area in Hulunbuir City, Inner Mongolia, the dynamic uniaxial compression test of sandstone with different freeze-thaw cycles has been carried out by Split Hopkinson Pressure Bar test
Externí odkaz:
https://doaj.org/article/a4907e36ac254b26bfdeddc3b0fdbed2
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
Based on the blasting principle of the cutting seam cartridge, smooth blasting with the charge structures of the usual cartridge and cutting seam cartridge has been designed and implemented, respectively, for different peripheral holes in the same fa
Externí odkaz:
https://doaj.org/article/a831d106d6e440618c968ba0daa5ed03
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
Through the dynamic splitting tensile test under various loading rates, different mechanical parameters have been analyzed; not only the dynamic peak stress but also the dynamic peak strain has a good linear relationship with the strain rate. The ten
Externí odkaz:
https://doaj.org/article/bf14bc55fffa4856ab21566500eae5ce
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
Based on the smooth blasting method, the blasting parameters of the Beishan exploration tunnel have been designed. According to the principle of blasting parameters design, three kinds of cutting methods have been laid out, which are straight paralle
Externí odkaz:
https://doaj.org/article/16a07e3a2ca84d60b8f7bbf45e673f6e
Autor:
Ke Man, Xiaoli Liu
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
From the standard test method suggested by ISRM and GB/T50266-2013, the uniaxial static tensile strength, dynamic tensile strength, and dynamic fracture toughness of the same basalt at different depths have been measured, respectively. It is observed
Externí odkaz:
https://doaj.org/article/65f79194d2d54437aed82b9c7cde7414