Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Yunqin Cao"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Mining geological disasters occur frequently in Guizhou, with mine mining and rainfall-induced avalanche geological disasters mainly, the investigation concluded that the hard rock of the overlying slide body is mostly sandstone, and it is c
Externí odkaz:
https://doaj.org/article/29a2afe51fb34b329c9fc27b84066f6a
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract In a coal mine, air leakage exists in some roadways through doors and other ventilation structures inevitably. Based on this opinion, there are different views on whether these roadways must be assigned airflow in coal mine ventilation desig
Externí odkaz:
https://doaj.org/article/305ae4a034684f14830e382b936d1b51
Publikováno v:
Energies, Vol 15, Iss 11, p 4161 (2022)
In the gob-side entry retaining by roof cutting (GERRC) technique, pressure is offloaded via directional roof cutting, and a roadway is automatically formed due to the ground pressure and rock-breaking expansion. To improve the application of the the
Externí odkaz:
https://doaj.org/article/3ddb07534c2240b58cf9f15b91a9ab1e
Publikováno v:
Environmental Earth Sciences. 80
During the period of working face passing through fault, the ground pressure behavior law of roadway in fault zone is complex, and study on roadway instability characteristics induced by fault-slip is a major concern for safety mining in underground