Results 91 to 100 of about 1,747 (203)

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source

Review of automation technology for fully mechanized coal face of thin seam

Gong-kuang zidonghua, 2013
The paper analyzed development status of automation technology for fully mechanized coal face of thin seam at home and abroad, introduced structure of automation system of fully mechanized coal face of thin seam, and automation control technology for ...
YU Yue-sen, ZUO Teng, ZHOU Juan, TANG Zhong-yu, WU Xiao-jie   +4 more
doaj  

Discussions on Some Security Mining Problems of Fully-Mechanized Top Coal Mining in “Three Soft” Large Inclined Angle Working Face

, 2011
This paper studies insecure factors of fully-mechanized top coal mining in “three soft” large inclined angle working face, which have impacted the normal generation badly, including rib spalling, roof fall and equipment slide, etc.
Yanli, Zhu, Dongming, Guo, Xianlei, Zhu, Guihe, Li, Renshu, Yang   +4 more
core   +1 more source

Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways

Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.
Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang, Tao Peng, Kang Zhou, Chong‐Yu Song   +3 more
wiley   +1 more source

Crawler Type Blasthole Drilling Rig for Fully Mechanized Mining Face Crossing the Fault

, 2020
Aiming at the problem of low efficiency and high labor intensity of the traditional construction method of fully mechanized mining face crossing the fault, a crawler type blasthole drilling rig suitable for fully mechanized mining face crossing the fault
WANG Tianlong, SONG Haitao, LIU Yiyang
core   +1 more source

Regulation method of coal flow anti-congestion in fully-mechanized mining face based on ensemble decision-making

Meitan kexue jishu
The congestion of coal flow in fully-mechanized mining face may cause the scraper conveyor to operate under overload or even be crushed, which significantly affects the production efficiency of the fully-mechanized mining face.
Yuan WANG, Jun LIU, Haitao HE, Shuanfeng ZHAO, Zhengxiong LU, Lele XU   +5 more
doaj   +1 more source

Application of WiFi communication in fully-mechanized coal mining face of thin seam

Gong-kuang zidonghua, 2020
Aiming at requirements of high reliability, high bandwidth, low delay and wide coverage of wireless communication in fully-mechanized coal mining face of thin seam, and taking 43101 fully mechanized mining face of thin seam of Yujialiang Coal Mine as application background, WiFi communication scheme applied to fully-mechanized coal mining face of thin ...
DONG Wenbo, GAO Siwei
openaire   +1 more source

Study on dynamic modification method of 3D model of coal seam in fully mechanized working face

, 2022
The high-precision coal seam geographic information of fully mechanized working face is the key to realizing intelligent unmanned mining. However, the vertical precision of 3D model of coal seam constructed at this stage is low. The model cannot meet the
LIANG Shua, XIE Yang, GE Shirong, WANG Shibo, BAI Yongtai   +4 more
core   +1 more source

Development Patterns of Fractured Water-Conducting Zones under Fully Mechanized Mining in Wet-Collapsible Loess Area

, 2022
The development pattern of fractured water-conducting zones (FWCZs) is closely related to mining safety and water conservation in mining areas. However, neither the development pattern nor the empirical formula in the prediction of the height of FWCZs ...
Shengqiang Jing, Yonghai Teng, Sihai Yi, Wei Zhu   +3 more
core   +1 more source

Research on overburden structural characteristics and support adaptability in cooperative mining of sectional coal pillar and bottom coal seam

Scientific Reports
In the mining process of the II1 coal seam at Zhaogu No. 2 coal mine, a method of stratified mining is employed, leaving relatively wide coal pillars in sections.
Du Feng, Fan Xuan, Li Zhenhua, Cao Zhengzheng, Wang Wenqiang, Lu Feifei, Jiang Yufei   +6 more
doaj   +1 more source