Results 91 to 100 of about 1,416 (183)

Longwall Top Coal Caving Mechanism and Cavability Assessment

, 2018
Longwall Top Coal Caving (LTCC) is considered one of the most efficient methods for mining thick coal seams. Compared to other thick seam mining methods, LTCC can offer significantly reduced operational costs, high production and resource recovery rates, and improve mine safety.
openaire   +2 more sources

ePoster

European Journal of Neurology, Volume 33, Issue S1, June 2026.
wiley   +1 more source

Study on Roof-Coal Caving Characteristics with Complicated Structure by Fully Mechanized Caving Mining

, 2019
With mining technology and mechanization degree being improving, fully mechanized caving mining technology (FCM) has become a main method for thick coal seam extraction in China.
Lei Li, Zhongguang Sun, Xuelin Yang, Jinhua Chen, Yunpei Liang, Xuelong Li, Kequan Wang   +6 more
core   +1 more source

Research on the Development of a Monitoring Experimental Platform for Top Coal Migration Trajectory in Longwall Top Coal Caving and Optimization of Coal Drawing Process

Granular Matter
Abstract Understanding the migration trajectory characteristics of top coal in longwall top coal caving (LTCC) is crucial for studying the flow properties of granular top coal, drawing laws, and optimizing the coal drawing process. To monitor the migration trajectory of top coal during the drawing process, an experimental platform was developed
Zhining Zhao, Weidong Pan, Cang Deng, Xinyuan Li, Suyu Liang   +4 more
openaire   +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

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

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  

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