Zobrazeno 1 - 10
of 57
pro vyhledávání: '"YAO Yafeng"'
Publikováno v:
PLoS ONE, Vol 19, Iss 2, p e0299149 (2024)
Accurate analysis of the strength of steel-fiber-reinforced concrete (SFRC) is important for ensuring construction quality and safety. Cube compression and splitting tensile tests of steel fiber with different varieties, lengths, and dosages were per
Externí odkaz:
https://doaj.org/article/48016286eac249f3b694cda441b71dae
Publikováno v:
Meikuang Anquan, Vol 53, Iss 3, Pp 150-155 (2022)
The basic design principles and structural characteristics of the feeding device of drilling rig in underground coal mine are analyzed. According to the demand of long-stroke, a feeding device by the series and parallel combination cylinder is develo
Externí odkaz:
https://doaj.org/article/2caa7d12efba4bd19b87ee80a57adfce
Publikováno v:
Meikuang Anquan, Vol 53, Iss 3, Pp 175-180 (2022)
In order to study the effect of particle size and air volume on the deposition, migration and distribution law of pulverized coal in the annulus of drill pipe and hole wall, the Euler-Euler model is used to numerically simulate the gas-solid two-phas
Externí odkaz:
https://doaj.org/article/436515438d4c40b79d1562702894fd48
Publikováno v:
Geofluids, Vol 2022 (2022)
The frost heave characteristics of artificial frozen soil are very important information for underground freezing engineering. It is found that both the frost heaving force and rate of the same soil layer increase with the decrease of freezing temper
Externí odkaz:
https://doaj.org/article/40658acef5b04634b72aa2db56976e6b
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 4, Pp 100-104 (2018)
In view of problem of unsatisfactory effect of traditional training for coal mine full-hydraulic drilling rig, a training system for coal mine full-hydraulic drilling rig based on virtual reality technology was developed. The system is consisted of l
Externí odkaz:
https://doaj.org/article/48a6e668d80d4399ae30832bc7237e05
Publikováno v:
Gong-kuang zidonghua, Vol 43, Iss 8, Pp 6-10 (2017)
In view of problems of difficulties and security risks in operation of loading and unloading of drilling pipe caused by high hole position and large hole opening angle in current coal mine tunnel drilling construction, a mine-used drilling pipe repla
Externí odkaz:
https://doaj.org/article/3cd58b87826842d78c0eeb6695c48543
Publikováno v:
In Construction and Building Materials 16 August 2024 439
Akademický článek
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Autor:
Yao, Yafeng1,2,3 (AUTHOR) mike.yyf@yeah.net, Zhu, Yan1,2 (AUTHOR), Shen, Dejian2 (AUTHOR), Zhang, Zhemei4 (AUTHOR), Wang, Wei1 (AUTHOR)
Publikováno v:
Scientific Reports. 6/10/2023, Vol. 13 Issue 1, p1-15. 15p.
Akademický článek
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