Results 1 to 10 of about 159,153 (217)
Applied Sciences (Switzerland), 2023 Insufficient stability of the top plate at the corner of an easily combustible coal seam comprehensive mining face may lead to a natural fire within the goaf. While corner sealing is crucial for minimizing air leakage, current sealing methods struggle to
Zhijun Xu
exaly +3 more sources
Asymmetric deformation law and differentiated control technique for the roadway of an isolated working face in an extra-thick coal seam. [PDF]
Sci RepThe rib corners and roof of the 23,109 material roadway of the island working face in Xiegou Coal Mine suffer severe deformation and lacks effective support during its entire life cycle.
Wu H +5 more
europepmc +2 more sources
Evaluation on water bursting risk of working faces near collapse column during the mining process [PDF]
E3S Web of Conferences, 2020 Collapse column water bursting occurs from time to time in the coal mining process of North China Type Coalfield in China, which causes great economic loss and personal injury. Therefore, great attention must be paid to the harm of collapse column.
Xue Yang +6 more
doaj +1 more source
Studying the space of microclimate parameters of production premises
Budownictwo o Zoptymalizowanym Potencjale Energetycznym, 2020 The aim of the study is to find out, based on the project’s approach, the main components of the project on the research of the microclimate of industrial premises, and to substantiate, develop and apply a means of geometric analysis of the graphic ...
Olena Gumen +2 more
doaj +1 more source
Geofluids, 2022 The migration law of overlying strata on working face is of great significance for safe mining of working face. In this paper, theoretical calculation, numerical simulation, and similar simulation are used to study the distribution characteristics ...
Hongtao Liu +5 more
doaj +1 more source
Geofluids, 2022 In order to extract gas accurately in Yue Nan coal mine and prevent gas over limit and gas accidents, a combination of theoretical analysis and numerical simulation was used to investigate the height of the overburden caving zone and fracture zone in the
Xiangjun Chen +4 more
doaj +1 more source
Meikuang Anquan, 2020 To study the distribution law of coal spontaneous combustion zone in goaf of two intake and one return ventilation working face, the oxygen concentration under different working conditions during the mining of the 8301 working face of Tashan Coal Mine ...
DU Yang, QI Xuyao, WENG Xuze, HAO Jianfeng, CHEN Ruifeng, CHEN Yuezhen
doaj +1 more source
Analysis of the Influence of Fault Fracture Zone on Mining Response Based on FDM-DEM Coupling
Geofluids, 2022 Fault slip will cause a change in mining stress at the longwall face, which will cause adverse effects. In this study, on the basis of Fast Lagrangian Analysis of Continua in 3 Dimensions (FLAC3D) and Particle Flow Code in 3 Dimensions (PFC3D), the ...
Cao Xu, Cao Xiaoshan, Han Tielin, Ru Yan
doaj +1 more source
Influence Degree Analysis of Safety Mining of Coal Face Under Coalfield Fire Area
Meikuang Anquan, 2020 Aiming at the current status of 7-1(Ⅲ) coal field fire area in Huangbaici Coal Mine 021205 working face, the safety mining impact analysis of coal mining face under the coal field fire area was carried out.
CUI Jie, WANG Wei
doaj +1 more source
Scientific Reports, 2023 In order to study the mining pressure characteristics of the shallow buried coal seam with the same silo working face under the very close mining void zone and the overlying coal rock body, the theoretical analysis is used to determine whether the open ...
Tianwei Lan +6 more
doaj +1 more source