Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Qingyang Ren"'
Autor:
Qingyang Ren, Zhongyao Li
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02626- (2023)
The properties of the improved soil are closely related to the properties of the improved materials added, and the curing process is the key process to make the performance of the improved materials play. In this paper, several groups of improvement
Externí odkaz:
https://doaj.org/article/d816beefd5aa4e548580e4fbf5939e19
Autor:
Songqiang Xiao, Haoxin Qin, Wenfeng Zhang, Qingyang Ren, Juchong Xiao, Wentao Li, Yugang Cheng
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02634- (2023)
To reveal the dynamic response characteristic and damage-fracture evolution laws of concrete under pulse water jet impact, the numerical simulations on pulse water jets impinging concrete for different operating parameters were established based on S
Externí odkaz:
https://doaj.org/article/6e6258f9228c46c6bde01e71e4206792
Publikováno v:
Frontiers in Energy Research, Vol 10 (2023)
The strength of the natural gas transmission pipe is reduced due to sag deformation and corrosion defects. However, there are rare experiment data to quantitatively describe the effect of the defect’s size and position on the pipe strength. This pa
Externí odkaz:
https://doaj.org/article/a5c972c9bd5845488f929e5fdcbf0703
Autor:
Songqiang Xiao, Qingyang Ren, Ruishi Guan, Jialiang Liu, Haiyang Wang, Yugang Cheng, Wenhao Xie
Publikováno v:
Energy Reports, Vol 7, Iss , Pp 3210-3224 (2021)
This paper adopted theoretical derivation and experiments to investigate the stress wave propagation characteristics in rock under water jet impact and fracture response of coal. The evolution model of stress and displacement was presented to analyze
Externí odkaz:
https://doaj.org/article/5269d69b8bcd41678ba971f3ee3e0809
Publikováno v:
The Journal of Engineering, Vol 2021, Iss 5, Pp 267-275 (2021)
Abstract Water jet drilling (WJD) technology has been widely used to extract coalbed methane. Coal breakage features and fragment size in WJD determine the drilling efficiency. The smaller the coal fragments, the easier the fragments are discharged f
Externí odkaz:
https://doaj.org/article/76afa0823c67415e929ccfb1ce5c4461
Publikováno v:
Shuiwen dizhi gongcheng dizhi, Vol 48, Iss 2, Pp 114-124 (2021)
This paper presents an investigation of regularity between the internal force and deformation of anti-slide pile under the actual stress condition, places its emphasis on the regularity of force characteristics, deformation and stability of pile body
Externí odkaz:
https://doaj.org/article/b45a9769e2df4633bca04b45656a80ce
Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
The sealing problem of the cement sheath often appears in gas wells for underground energy exploitation, especially when horizontal multistage fracturing technology is used in the shale gas industry. In this article, according to the elastic–plasti
Externí odkaz:
https://doaj.org/article/80d8cc92c061422ea35245909abd68b2
Publikováno v:
Buildings, Vol 13, Iss 2, p 322 (2023)
The evolution law of internal force and deformation of an anti-slide pile affects the slope stability and prevention design in a significant way. Based on the similarity theory, a test system for the bearing characteristics of a cantilever anti-slide
Externí odkaz:
https://doaj.org/article/98b3608379dc43fcaab7781172beaa56
Autor:
Qingyang Ren, Xin Meng
Publikováno v:
Complexity, Vol 2022 (2022)
Based on the actual engineering geological survey, the mechanical response mechanism and sliding surface characteristics of the interbedded slope containing six layers of soft and hard rock during excavation under heavy rain conditions are studied by
Externí odkaz:
https://doaj.org/article/8be11dd03a384384aa925a9092ab0b12
Publikováno v:
Shock and Vibration, Vol 2022 (2022)
A submerged floating tunnel (SFT) is considered an innovative alternative to conventional bridges and underground or immersed tunnels for passing through deep water. Assessment of hydrodynamic performance of SFT under regular wave loading is one of t
Externí odkaz:
https://doaj.org/article/4c63d3aa0cdb4c63892e1b69ce3f6165