Results 11 to 20 of about 1,939 (269)
Transparent mining mode and key technologies of fully mechanized working face
Gong-kuang zidonghua, 2022 In order to solve the problem that the intelligent mining technology based on adaptive working face geological conditions can not meet the practical engineering application requirements, a transparent mining mode of fully mechanized working face is ...
YUAN Changsuo, WANG Feng
doaj +3 more sources
Affection Laws of Atmospheric Pressure to Gas Emission at Fully Mechanized Working Face
Procedia Engineering, 2014 AbstractGas emission is affected by many factors. Effects of atmospheric pressure on coal mine gas emission have become a rising concern. Basing on the gas emission at Y485 fully mechanized working face of Tangshan mine and atmospheric pressure, the paper had carried out online monitoring with sensors for 20 days continuously.
Lingqi, Zhu, Jingjing, Shao, Feng, Gao
exaly +3 more sources
The Comprehensive Identification of Roof Risk in a Fully Mechanized Working Face Using the Cloud Model [PDF]
Mathematics, 2021 Roof accidents seriously affect the safe and efficient mining of the working faces. Therefore, it is necessary to assess and identify the possible and influencing factors on the occurrence of roof risk in a fully mechanized mining workface. In this study, based on the analytic hierarchy process and fuzzy comprehensive evaluation, a comprehensive ...
Yu Xiong, Dezhong Kong, Zhanbo Cheng
exaly +4 more sources
Application of Real-time Pressure Monitoring System of Fully Mechanized Working Face
Gong-kuang zidonghua, 2011 The paper introduced design of a real-time pressure monitoring system of fully mechanized working face taking 120204 fully mechanized working face of Yangchangwan Coal Mine as example.
WANG Xin-wen, LIU Yun-xia
doaj +2 more sources
Geofluids, 2021 The deformation control of the surrounding rock during gob-side entry driving along deeply fully mechanized caving island working face is one of the main bottlenecks affecting the successful and efficient production in modern mining.
Fei Liu, Yongsheng Han
doaj +2 more sources
Meikuang Anquan, 2021 Aiming at the problem of over-limit gas in the return air corner of the “U” type downward ventilation fully mechanized caving face in Baode Coal Mine, the law of gas migration in the stope and goaf was studied. Using Fluent numerical simulation software
ZHANG Zenghui, XUE Yanping
doaj +2 more sources
Mathematical model of automatic following control in the middle of fully mechanized mining face
Gong-kuang zidonghua, 2016 With consideration of bi-directional cutting characteristics of fully mechanized mining face and analysis of coordinated control of shear, hydraulic support and scraper conveyor, a mathematical model was firstly proposed to describe curved path of ...
SHI Yong +3 more
doaj +2 more sources
Target detection of the fully mechanized working face based on improved YOLOv4
Gong-kuang zidonghua, 2023 The accurate detection of key equipment and personnel in the fully mechanized working face is an important link to realize the information perception of intelligent coal mining. The traditional target detection algorithm realizes the target detection by extracting the features manually.
WANG Keping +3 more
openaire +3 more sources
Grid partition method of fully-mechanized coal mining face area and its applicatio
Gong-kuang zidonghua, 2018 In order to meet fine management requirements for fully-mechanized coal mining face production, a grid partition method of fully-mechanized coal mining face area was put forward.
QU Shijia
doaj +2 more sources
Numerical and in-situ investigation on the ground behavior of the end roof in fully mechanized caving face [PDF]
E3S Web of Conferences, 2021 Fully mechanized top coal caving is a major high-yield and high-efficiency coal mining method for thick seam mining. At present, it is affected by the further popularization and application of fully mechanized caving mining because the recovery rate is ...
Zang Chuanwei +5 more
doaj +2 more sources