Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Similar simulation"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Deep close distance coal seam mining is affected by the goaf of upper coal and remaining coal pillar, and the roadway of lower coal is difficult to maintain stability. By means of theoretical analysis, physical simulation test and numerical
Externí odkaz:
https://doaj.org/article/0446aeb04c004000af8fc72524eac2fa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Study of the interaction between fault activation and mining stress evolution in the longwall working face is helpful to provide a targeted area for fault type heavy mine pressure disaster control. Combining theoretical analysis, physical an
Externí odkaz:
https://doaj.org/article/8524d6f5ab5c495385606a3759a032c3
Publikováno v:
Meikuang Anquan, Vol 55, Iss 9, Pp 128-138 (2024)
To study the influence of faults on the evolution of mining fissures in coal seam group, the mining fissure evolution of coal seam group containing faults was investigated based on similar simulation and numerical simulation methods by taking 151710
Externí odkaz:
https://doaj.org/article/1e5c8f86f1244838ac67c1adb13380df
Publikováno v:
Natural Gas Industry B, Vol 11, Iss 4, Pp 454-467 (2024)
This paper proposes a method for creating a three-dimensional (above-ground and underground) fracture network in deep coalbed methane (CBM) reservoirs, which is the directional fracturing by slotted hydraulic blasting in underground drilling. First,
Externí odkaz:
https://doaj.org/article/f4218ccd64204d268d188f506f834f0f
Publikováno v:
矿业科学学报, Vol 9, Iss 4, Pp 519-528 (2024)
This study investigates the fracture evolution patterns of overlying strata under the mining conditions of close-distance coal seams.Taking the 9305 working face of Anshun Coal Mine as the research object, this study probed into the evolution of disp
Externí odkaz:
https://doaj.org/article/a5d365d7e93c48af97fdae2d1038f4fe
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-15 (2024)
Abstract This study employs similar simulation testing and discrete element simulation coupling to analyze the failure and deformation processes of a model coal seam's roof. The caving area of the overburden rock is divided into three zones: the dela
Externí odkaz:
https://doaj.org/article/43796b13ef2b4e2884ff02ff701a0d19
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 4, Pp 1531-1550 (2024)
Abstract When pressure relief mining of a non‐all‐coal protective layer, to realize the accurate regulation of the pressure relief range and pressure release value of mining height, it is necessary to carry out research on the migration of overbu
Externí odkaz:
https://doaj.org/article/322524eafb324a409162898893b69461
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 3, Pp 1-12 (2024)
Fully mechanized top-coal caving mining with large mining height is easy to form strong strata behavior, and the fracture evolution law of overlying strata is very important for safe production of working face. Taking the 160206 working face of Yangc
Externí odkaz:
https://doaj.org/article/5dbb89d277b4465cb08620883d63dedf
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e02806- (2024)
To tackle the challenge of extracting residual coal resources in Zhangzhao Coal Mine while preventing floor water inrush, a strip filling mining method has been proposed. A two-step mining approach was designed to ensure roof stability and avoid floo
Externí odkaz:
https://doaj.org/article/4983917441d0479aaebec5ea74a4086e
Publikováno v:
Meikuang Anquan, Vol 54, Iss 10, Pp 161-167 (2023)
The goaf at the side of the roadway pillar (lateral roof) often encounters thick and hard roof, which will not collapse naturally in a short period of time, and is easy to cause mine earthquake and roof fall. Taking the 113105 working face of Bojiang
Externí odkaz:
https://doaj.org/article/d533e587b57c4d2289fa8248221ecdad