Results 61 to 70 of about 8,734 (226)
New approach to the design of mining operations [PDF]
, 2019 Analysis of the production development scenarios is proposed for strategic activity planning; criteria to make decisions under the uncertainty conditions as well as decision-making trees for day-to-day management are proposed to determine balanced ...
Hrinov, V., Khorolskyi, A., Mamaikin, O.
core +1 more source
Study on the characteristics of gas permeability of coal under loaded stress [PDF]
, 2017 The #3 coal seam of Jinsheng Rundong Ltd. of Jin-Coal Group in Shanxi Province, China, has high gas content and pressure; however, it has a low gas permeability, which can easily cause gas enrichment and may cause accidents of coal and gas outbursts.
Li, Dengke +4 more
core +1 more source
Digital coal seam-based precision mining system for fully mechanized working face
Gong-kuang zidonghua, 2021 The current automatic coal mining technology with memory cutting as the core technology cannot perceive the changes of geological conditions of the working face autonomously, and the shearer can hardly realize automatic height adjustment control according to the changes of coal seam thickness.
LI Xu1 +4 more
openaire +1 more source
Do robots boost productivity? A quantitative meta‐study
Journal of Economic Surveys, EarlyView.ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley +1 more source
Ground pressure behavior law at fully-mechanized face in Fenxi-ShuGuang coal mine
Procedia Earth and Planetary Science, 2009 AbstractIn this paper, based on field observations and theoretical analysis, we discussed the ground pressure behavior law and its characteristic at fully-mechanized face and the material roadway of 10# seam in Fenxi-Shuguang coal mine. The analysis results indicates that ground pressure at material roadway increased sharply when the working face ...
Shi-jie, Zhang +4 more
openaire +1 more source
Design of Initial Mining Pressure Relief Scheme for Large‐Size Mining Face: A Case Study
Engineering Reports, Volume 8, Issue 4, April 2026.The numerical simulation analysis method is used to compare the actual mining face (315 m) with the designed mining face (200 m). The results show that the large mining height working face has larger abutment pressure peak and stress concentration factor than the general mining height working face.
Qinghu Wei +3 more
wiley +1 more source
Research of gas movement law in goaf with parallel double U-shape ventilation mode
Gong-kuang zidonghua, 2014 In order to analyze and master gas distribution and movement law in goaf with parallel double U-shape ventilation mode, a CFD model was established according to characteristics of parallel double U-shape ventilation system of fully mechanized coal mining
HAO Yabing +3 more
doaj +1 more source
Remote fault diagnosis system of fully mechanized mining equipment group based on cloud platform
Gong-kuang zidonghua, 2021 The currently developed remote fault diagnosis systems for fully mechanized mining equipment are mostly for single-machine equipment such as coal shearers, scraper conveyors and belt conveyors, and for expert remote guidance and maintenance systems based
LI Xu +4 more
doaj +1 more source
RESEARCH OF THE APPLICATION OF COMBINED ANCHOR SYSTEMS FOR THE MAINTENANCE OF RE-USED MINING WORKINGS [PDF]
, 2018 Study the possibility of developing the technical and technological justification of combined anchor systems for the maintenance of re-used mining workings in economic effective ...
BONDARENKO, Volodymyr +9 more
core
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