Results 71 to 80 of about 1,698,756 (161)

Characteristics of Overlying Rock Movement and Spatial Structure Evolution During Fully Mechanized Top-Coal Caving Mining in Thick Coal Seam

Advances in Civil Engineering
The variation in top-coal thickness within thick coal seams leads to differences in the movement characteristics of the mining-induced roof. This study focused on the fully mechanized caving face of the 4-2 coal seam in Shendong Buertai Mine to explore ...
Fa Dong, Shuai Wang, Gang Jing, Jingkai Li, Leilei Zhao   +4 more
doaj   +1 more source

Application of an Automated Top Coal Caving Control System: The Case of Wangjialing Coal Mine

China has made notable advancements in the intelligent construction of coal mines. However, for longwall top coal caving (LTCC) mining faces, a key obstacle impeding the intelligent transition of the coal-cutting process is automated control.
Defu Zhu, Dangwei Zhao, Zhonglun Wang, Yuming Huo   +3 more
core   +1 more source

Influence of loose gangue thickness on top coal recovery ratio in extrathick coal seam in longwall top coal caving

Computational Particle Mechanics, 2023
Liu Yang, Jiachen Wang, Shengli Yang, Tao Li, WeiJie Wei, Zheng Li, Fei Liu   +6 more
openaire   +1 more source

Ground control strategies for longwall top-coal caving panel in extra-thick coal seams with thick-hard roof. [PDF]

Sci Rep
Wang R, Zhang WG, Wang HS, Yu ZJ, Zhang Q.   +4 more
europepmc   +1 more source

Tiltable top beam low caving coal end hydraulic support

, 2019
Top plate is arranged on top beam in tiltable top beam low caving coal end hydraulic support, including pedestal, column and top beam；It is hinged with top beam that each column passes through cating nipple respectively, and cross connector is arranged ...
Li, Tukun
core   +1 more source

Stress distribution characteristics of overburden strata during thick coal seam top coal caving. [PDF]

Sci Rep
Ju L, Wang Z, Chen L, Wang Y, Cheng Z.
europepmc   +1 more source

Investigation on overburden failure and subsurface subsidence characteristics in fully mechanized top-coal caving of "Three-Soft" Thick coal seams. [PDF]

Sci Rep
Guo W, Yang W, Ge Z, Wang B, Li L.
europepmc   +1 more source

Overlying strata movement law and rockburst prevention & control for fully mechanized top coal caving face in extra-thick coal seams. [PDF]

Sci Rep
Rong H, He L, Wang Y, Wei X, Wei S, Yang S, Li J, Chen L.   +7 more
europepmc   +1 more source

Boundary quantitative characterization of the top-coal limit equilibrium zone in fully mechanized top-coal caving stope along the strike direction of working face. [PDF]

Sci Rep
Lang D, Wu X, Wu Y, Xie P, Yan Z, Chen S.   +5 more
europepmc   +1 more source

An analytical methodology of rock burst with fully mechanized top-coal caving mining in steeply inclined thick coal seam. [PDF]

Sci Rep
Shan P, Yan Z, Lai X, Xu H, Hu Q, Guo Z.
europepmc   +1 more source