Results 51 to 60 of about 1,342 (177)
Energy Science &Engineering, Volume 14, Issue 4, Page 1713-1724, April 2026.ABSTRACT The powered roof supports in the longwall complex are placed and interconnected next to one another, typically about 125–250 units in a longwall face. It is an essential component in the longwall complex, which also includes a shearer (or plow) and an armored face conveyor.
Dawid Szurgacz +3 more
wiley +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 1808-1821, April 2026.Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng +7 more
wiley +1 more source
Analysis of the Influence of Fault Fracture Zone on Mining Response Based on FDM-DEM Coupling
Geofluids, 2022 Fault slip will cause a change in mining stress at the longwall face, which will cause adverse effects. In this study, on the basis of Fast Lagrangian Analysis of Continua in 3 Dimensions (FLAC3D) and Particle Flow Code in 3 Dimensions (PFC3D), the ...
Cao Xu, Cao Xiaoshan, Han Tielin, Ru Yan
doaj +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 1851-1863, April 2026.With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong +5 more
wiley +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 2137-2152, April 2026.A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley +1 more source
Mining demonstrations and longwall mining systems
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G Zahary, I R Muirhead
openaire +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 2225-2247, April 2026.Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang +7 more
wiley +1 more source
Surrounding rock control theory and longwall mining technology innovation
International Journal of Coal Science & Technology, 2017 To accommodate surrounding rock structure stability control problem in underground mining, we study the coupling effect principle between hydraulic support and surrounding rock, and develop a series of longwall mining technology and equipment, which ...
Guofa Wang, Yihui Pang
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Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian +6 more
wiley +1 more source
E3S Web of Conferences, 2017 The relevance of a solution of the problem of endogenous fire safety in seams liable to self-ignition is shown. The possibilities of numerical methods of researches of gasdynamic processes are considered.
Meshkov Sergey, Sidorenko Andrey
doaj +1 more source