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pro vyhledávání: '"Qiuge YU"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 6, Pp 253-260 (2024)
Due to alkaline earth metal oxide such as calcium and magnesium being existed in the fly ash, its slurry is alkaline. It’s easy to pollute the underground water when the slurry was filled in the goaf. Thus, some experiments such as composition test
Externí odkaz:
https://doaj.org/article/0cb39568e44d45449bbb0bcf25381aee
Publikováno v:
Meitan xuebao, Vol 48, Iss 7, Pp 2717-2727 (2023)
High calcium fly ash slurry has a high pH value, which is prone to contaminating groundwater when it is directly used for fire prevention and extinguishing in gob. To study the reaction characteristics of carbon fixation and alkali reduction in the p
Externí odkaz:
https://doaj.org/article/dc956f7cae564377b436a3390feff538
Publikováno v:
Meitan kexue jishu, Vol 50, Iss 12, Pp 117-127 (2022)
In order to study the failure mechanism of deep coal seam floor under unloading, pseudo-triaxial mechanical tests were carried out under different loading and unloading stress paths. The relationship between rock elastic modulus, generalized Poisson
Externí odkaz:
https://doaj.org/article/7717cfc68fe146c895de73a4a38253bb