Results 81 to 90 of about 1,482 (145)

Characteristics of overburden failure and evolution of fractures in fully mechanized top coal mining face. [PDF]

Sci Rep
Wang X, Liu F.
europepmc   +1 more source

Study on Air Leakage Law and Coal Spontaneous Combustion Danger Area in Goaf of Ultra-Long Fully Mechanized Mining Faces with Large Mining Height. [PDF]

ACS Omega
Yuan G, Ma L, Sun J, Zhang P, Chen R, Pei G, Ma W.   +6 more
europepmc   +1 more source

Determination of real-time working resistance of support in fully-mechanized working face of medium-thickness coal seam

Gong-kuang zidonghua, 2016
In order to study evolution of real-time working resistance of hydraulic support with roof breaking in fully-mechanized working face of medium-thickness coal seam, a mechanical model of main roof was established based on elastic foundation beam, and law of main roof movement was analyzed.
openaire   +1 more source

Study on coal wall spalling mechanism of large mining height working face based on folding mutation theory. [PDF]

Sci Rep
Li G, Zhang H, Li M, Shen Z, Tian A, Wang L.   +5 more
europepmc   +1 more source

Research on the active sealing and promoting extraction technology of high-gas mine working face return air corner gas. [PDF]

Sci Rep
Sun B, Gong X, Fan X, Cheng X, Yang P, Xiao L, Cheng C, Ma X.   +7 more
europepmc   +1 more source

Large block coal detection algorithm for fully mechanized working face based on MES-YOLOv5s

Gong-kuang zidonghua
The objects in the fully mechanized working face have the features of high-speed motion, multi-scale, occlusion, etc. The existing object detection algorithms have problems such as low precision, large memory of models, and strong hardware dependence. In order to solve the above problems, a large block coal detection algorithm based on MES-YOLOv5s is ...
XU Ciqiang, JIA Yunhong, TIAN Yuan
openaire   +1 more source

Structural model of hard overburden shell in thick coal seam and its application. [PDF]

Sci Rep
Fu X, Zeng L, Rong H, Zhang H, Liu T, Song J.   +5 more
europepmc   +1 more source

Acid mine drainage control in mining areas: identification of groundwater recharge pathways and source reduction strategies. [PDF]

Sci Rep
Zhang C, Zhang F, Mu W, Li H.
europepmc   +1 more source

Influence of joint fissure occurrence on stress distribution of coal wall in large mining height. [PDF]

Sci Rep
Guo W, Gao Y, Wang G.
europepmc   +1 more source

Determination method of rational position for working face entries in coordinated mining of section coal pillars and lower sub-layer. [PDF]

Sci Rep
Li X, Huan H, Lin H, Li Z, Du F, Cao Z, Fan X, Ren H.   +7 more
europepmc   +1 more source