Results 61 to 70 of about 2,675 (183)

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, Volume 14, Issue 4, Page 2137-2152, April 2026.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, Volume 14, Issue 4, Page 2225-2247, April 2026.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 more
wiley   +1 more source

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

An Image-Based Hierarchical Deep Learning Framework for Coal and Gangue Detection

IEEE Access, 2019
The efficient separation of coal and gangue in the mining process is of great significance for improving coal mining efficiency and reducing environmental pollution.
Dongjun Li, Zhenxin Zhang, Zhihua Xu, Lili Xu, Guoying Meng, Zhen Li, Siyun Chen   +6 more
doaj   +1 more source

A study on Mechanical Seepage Characteristics of Coal‐Rock Mass Under the Combined Action of Multiple Factors

Safety Science and Technology, Volume 1, Issue 1, March 2026.
Schematic diagram of a triaxial fluid–solid coupling device based on the mapping function. ABSTRACT In deep coal mining, the influence of temperature–pressure coupling on the mechanical properties of coal is a crucial factor inducing dynamic disasters.
Musen Gao, Heng Ma, Xiaoqi Wang, Ke Gao
wiley   +1 more source

Research on coal gangue recognition method based on infrared thermal imaging

Gong-kuang zidonghua
Coal and gangue sorting methods based on heavy-medium coal selection technology, jigging technology, flotation technology, dry coal selection technology and γ-ray detection method have high investment costs, low sorting efficiency and serious ...
CHENG Gang, PAN Zeye, WEI Yifan, CHEN Jie   +3 more
doaj   +1 more source

Dynamic weighing method for coal and gangue in coal-gangue sorting robots

Gong-kuang zidonghua
Image recognition-based coal-gangue sorting robots have become a research hotspot in the field of coal-gangue separation. To address the issue of low recognition accuracy caused by complex real-world conditions—such as dust adhesion, lighting variation, water stains, and coal slurry coverage—a dynamic weighing method for coal and gangue was proposed ...
CAO Xiangang, LIU Yizhe, WU Xudong, WANG Peng, ZHANG Ye   +4 more
openaire   +1 more source

Precise detection of coal and gangue based on natural γ-ray

Scientific Reports
To address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low radiation level radioactivity measurement method is utilized to assess the degree of coal-gangue mixture
Ningbo Zhang, Changyou Liu, Chuanqi Zhu, Baobao Chen, Zhongbin Wang, Xiaojie Wu   +5 more
doaj   +1 more source

Design of separation system of coal and gangue based on X-ray and machine visio

Gong-kuang zidonghua, 2017
In view of problems of low efficiency, environmental pollution and high cost existed in traditional coal and gangue separation method, a separation system of coal and gangue based on X-ray and machine vision was designed.
YANG Huigang, QIAO Zhimin
doaj   +1 more source

Research of Comprehensive Utilization of Coal Gangue

DEStech Transactions on Engineering and Technology Research, 2018
Oil and coal are abundant in China and it is a superiority for the development. Coal gangue come from the course of coal exploitation, and processing, which is one of the solid wastes of industry biggest in emission of our country. How to solve this environment pollution and effectively utilize the coal gangue is a main subject and difficult problem ...
JIA HAN, XIAO-BO LIU, WEI-WEI YANG, JI-PING LIU   +3 more
openaire   +2 more sources