Results 81 to 90 of about 5,156 (170)

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

A symmetry-guided mirror reconstruction method for filling large gaps in TLS surveys of mining subsidence

Frontiers in Earth Science
Surface subsidence induced by coal mining is one of the most prominent anthropogenic geological hazards in mining areas. In terrestrial laser scanning (TLS) surveys of subsidence basins, point cloud data are often incomplete due to unavoidable surface ...
Zijian Wang, Youfeng Zou, Youfeng Zou, Huabin Chai, Mingwei Song, Mingwei Song   +5 more
doaj   +1 more source

Divided grids of the goaf area.

Monitoring the temperature to determine the fire source locations is essential for controlling the spontaneous combustion in the goaf. Optical fiber sensors are employed to measure the temperature distribution in the goaf.
Yujiao Liu (646278), Ke Gao (1521607), Kaiping Wang (4441702), Zemiao Yang (18065100), Lianzeng Shi (11785893), Yao Zhang (134381), Zeyi Liu (3762745), Lu Chen (75170)   +7 more
core   +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

Divided grids of the goaf model.

Monitoring the temperature to determine the fire source locations is essential for controlling the spontaneous combustion in the goaf. Optical fiber sensors are employed to measure the temperature distribution in the goaf.
Yujiao Liu (646278), Ke Gao (1521607), Kaiping Wang (4441702), Zemiao Yang (18065100), Lianzeng Shi (11785893), Yao Zhang (134381), Zeyi Liu (3762745), Lu Chen (75170)   +7 more
core   +1 more source

Numerical modelling of the goaf : methodology and application

, 2016
International audienceThe mechanical behavior of the goaf is a critical issue that may affect the efficiency of longwall mining. Goaf numerical modelling as a continuous material is a challenge, especially because its large-scale mechanical properties ...
Al Heib, Marwan, Piguet, Jack-Pierre, Gunzburger, Yann, Ahmed, Samar S., Renaud, Vincent   +4 more
core   +2 more sources

Surface Goaf Hole Drainage Trials at Illawarra Coal

, 2006
Surface goaf gas extraction methods are successfully applied at a number of Australian and overseas underground coal mines. BHPB Illawarra Coal has recently undertaken a trial program to determine the effectiveness of surface goaf wells to reduce gas ...
T Meyer (65184)
core   +1 more source

Research on simulation technology of surface air leakage of shallow-buried goaf based on network calculatio

Gong-kuang zidonghua, 2017
In order to analyze influence of surface air leakage of shallow-buried coal seam on mine ventilation system and goaf flow field, a coupling model of shallow-buried goaf flow field and roadway ventilation network under surface air leakage was established.
WU Fengliang, HE Xiaochen, CHANG Xintan, MA Li, LI Chao   +4 more
doaj   +1 more source

Two-dimensional inverse problem of fire location in the closed goaf of coal mine based on optical fiber sensors.

PLoS ONE
Monitoring the temperature to determine the fire source locations is essential for controlling the spontaneous combustion in the goaf. Optical fiber sensors are employed to measure the temperature distribution in the goaf.
Yujiao Liu, Lu Chen, Kaiping Wang, Zeyi Liu, Yao Zhang, Lianzeng Shi, Ke Gao, Zemiao Yang   +7 more
doaj   +1 more source

Numerical Analysis of Double Plate Foundation Applied in Goaf

, 2011
With the development of society, the demand of coal resources is increasing. However, the deformation and damage of buildings above goaf, which caused by underground mining, is getting worse and worse.
Qing Jie Zhao, Xu Xie, Yu Hua Lu
core   +1 more source