Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Xinglong Zhao"'
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 4, Pp 1518-1530 (2024)
Abstract The stress concentration caused by the presence of the remaining coal pillar in the overlying goaf can easily cause large deformation of the roadway in the lower seam and other problems. To solve this problem, the reasons for stress concentr
Externí odkaz:
https://doaj.org/article/19bb82743a774a1593a7aea1d766b6b8
Publikováno v:
Heliyon, Vol 10, Iss 10, Pp e30906- (2024)
Concentration of fruit pulp is an important unit operation in food processing and has a wide range of applications. In this study, the microwave heating concentration (MHC) of raspberry pulp at different microwave powers, heating times and sample mas
Externí odkaz:
https://doaj.org/article/fc7019b56bce4071af4928ead915e79c
Publikováno v:
Results in Engineering, Vol 20, Iss , Pp 101550- (2023)
Fracturing with proppants is often used to improve the permeability of coalbed methane (CBM) reservoir. The fracture is easy to close under the closure stress and the proppant distribution in fractures greatly influences the extraction efficiency of
Externí odkaz:
https://doaj.org/article/d5cd3a3306c5421682388621cf965ccd
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 5, Pp 965-979 (2022)
Several derivative disasters such as ground pressure disasters and methane explosions can be caused by the hard roof in coal mines. For limestone roofs with fine integrity and extreme hardness, collapse is difficult and the effect of conventional roo
Externí odkaz:
https://doaj.org/article/8c7adf6b0bb5489ebadec9dee2d00287
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Traditional hydraulic fracturing theory believes that as the initial pore pressure increases, the breakdown pressure of the rock will decrease. Previous experimental studies have shown that the breakdown pressure of rock hydraulic fracturing may incr
Externí odkaz:
https://doaj.org/article/80b834ec831a4183a60e3662b11c2661
Autor:
Xinglong Zhao, Bingxiang Huang
Publikováno v:
ACS Omega, Vol 6, Iss 45, Pp 30569-30579 (2021)
Externí odkaz:
https://doaj.org/article/0a8cfd48ded14b37a77dfb1d4e74a80b
Publikováno v:
Lithosphere, Vol 2021, Iss Special 4 (2022)
AbstractThe effect of pore pressure on rock damage is a core problem in underground engineering. In this paper, the pseudotriaxial hydromechanical coupling experiment system is utilized to carry out the physical model experiment of the pore pressure
Externí odkaz:
https://doaj.org/article/ccd59a33b4714487912a7cdc98e5761b
Publikováno v:
Crystals, Vol 13, Iss 1, p 81 (2023)
When maximum speed of 160 km/h is reached and the axle load reaches 25–30 tons, the train wheels need to have high strength and toughness. The main chemical elements affecting the strength and toughness of the wheel were determined by the mechanica
Externí odkaz:
https://doaj.org/article/7e0238fd21024b3185df8b80a01061b0
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
A complex fracture network is composed of many similar structures. The migration law of proppant at each structure is the core and basic content of the migration law of proppant in complex fracture network, and there is little research. In this study
Externí odkaz:
https://doaj.org/article/a714d62baa184eeb9527b102db3e0368
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Fracturing induced by disturbing stress of hydraulic fracturing is the frontier common core scientific problem of reservoir stimulation of coal bed methane and shale gas. The finite-discrete element method, numerical calculation method, is used to an
Externí odkaz:
https://doaj.org/article/53c30c2926034e68b0e4a1550fa23367