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Energy Science &Engineering, Volume 14, Issue 4, Page 1851-1863, April 2026.With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong +5 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
Numerical simulation of gas migration rules and comparison between U shape and U+L shape ventilation system [PDF]
, 2015 This paper offers an overview of numerical simulation with the aim of improving the knowledge and reference of coal mine gas distribution rule, and providing a case study of the optimization of ventilation system and environment protection. The numerical
Bascompta Massanes, Marc +4 more
core
Gas analysis of jian-gou mine goaf
IOP Conference Series: Earth and Environmental Science, 2018 Abstract Jiangou coal mine is a fully mechanized working face, with a height of 23 meters, serious air leakage in the goaf, easy spontaneous combustion of the coal seam, easy spontaneous combustion of the residual coal in the goaf. In order to prevent and control the spontaneous combustion fire in the goaf, we analyzed the thermal weight
Chengyu Li, Lili Zhang
openaire +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 1864-1880, April 2026.This study reveals the temporal and spatial evolution law of roof separation under the karst aquifer and the dynamic water inrush mechanism of roof separation. The FAHP–EWM–CRITIC combination weighting method was established to obtain the risk zoning of bed separation water inrush in a karst landform mining area. ABSTRACT Coalfields in northern Guizhou
Xilong Zhu +5 more
wiley +1 more source
Study on multi-source analysis and prevention of CO in return corner of composite goaf
Case Studies in Thermal EngineeringThe source of CO in the return corner of the composite goaf is more complex than that of a single coal seam, and the CO overrun seriously affects the health and safety of miners and the accurate prediction of coal spontaneous combustion (CSC) in the goaf.
Shiqiang Gao +8 more
doaj +1 more source
Goaf gas flow modelling in 6km long longwall panel [PDF]
Podzemni Radovi, 2017 Understanding the goaf gas distribution in the start-up areas and in 6km long retreat panel is critical for developing gas management and spontaneous combustion (sponcom) control strategies.
Tanguturi Krishna +2 more
doaj
Research on gas extraction technology in goaf across working face
Gong-kuang zidonghua, 2023 The Y-shaped ventilation continuous working face adopts the technology of gob-side entry retaining to improve the coal recovery rate. As the working face recovers, the goaf area will expand and connect.
LI Qianrong +4 more
doaj +1 more source
High Precision Synchronous Detection Method for Multi-gas detection using a Single Laser [PDF]
, 2018 There are two main drawbacks seen in the use of the multi-gas detection method based on the tuneable diode laser absorption spectroscopy (TDLAS). The first is that multiple lasers have traditionally been employed in the detection system, which means not ...
Grattan, K. T. V. +6 more
core +1 more source
Fault tree analysis and prevention strategies for gas explosion in underground coal mines of Pakistan [PDF]
, 2019 Purpose. Gas explosion in the underground coal mines of Pakistan is the main source of coal miners’ mortalities. The purpose of this article is to analyze the main causes of gas explosion in the underground coal mines of Pakistan. Methods.
Ali, M +7 more
core +2 more sources