Results 61 to 70 of about 5,156 (170)
Energy Science &Engineering, Volume 14, Issue 8, Page 3697-3725, August 2026.Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen +6 more
wiley +1 more source
Application of Microtremor Survey Technology in a Coal Mine Goaf
, 2022 Goafs are one of the main factors that endanger the safety of mining areas, leading to roadway collapse, land subsidence and other problems. Determining how to detect goafs accurately and efficiently is an important issue faced in engineering geophysical
Zheng Wang, Chuantao Yu, Mingyu Tang
core +1 more source
Financial Statement Information and Equity Value: The Role of Real Options Characteristics
Financial Management, Volume 55, Issue 2, Page 301-328, Summer 2026.ABSTRACT This paper examines whether firm‐specific real options characteristics are equity value‐relevant beyond valuation estimates anchored in financial statements. Using extensive historical data for the United Kingdom, we assess and compare the forecast accuracy and explanatory power for stock prices of equity valuation models based on residual ...
Mingyu (Chandler) Chen +2 more
wiley +1 more source
The Australian underground coal mining industry has increasingly relied on goaf gas drainage to manage methane levels and reduce gas emissions in recent years.
Wang, Yuehan
core +1 more source
Multi-field coupling laws of mixed gas in goaf [PDF]
, 2011 Residual coal in goaf easily causes spontaneous combustion, and provides a long-term existence fire source, then easily leads to secondary gas explosion.
Zhong-jun, Shu +3 more
core +1 more source
Energy Science &Engineering, Volume 14, Issue 5, Page 2476-2498, May 2026.Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang +11 more
wiley +1 more source
Meikuang Anquan, 2020 To solve the goaf water disaster of Hanzui Coal Mine, aiming to the technical problem of detection and drainage for goaf water with long distance under complicated geological conditions that the coal seam is soft and the floor is badly mudstone, the ...
LIU Mingjun, LI Xiaolong, YANG Zhong, ZHANG Jiadi
doaj +1 more source
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) +7 more
core +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
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) +7 more
core +1 more source