Numerical analysis of gas-liquid two-phase flow after water inrush from the working face during tunnel excavation in a karst region
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-018-1312-8
Abstract: Increasingly, deep tunnels are under construction, which greatly promotes the development of tunnelling technology. Complex geological conditions and frequent geological disasters have become great challenges during tunnel excavation. Among them, casualties and economic losses caused… read more here.
Keywords: water inrush; water; cross passage; excavation ... See more keywords
Analysis of Pressure Relief Effect on the Protective Layer of Hard Roof and Extra-Thickness Coal Seam Mining
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0600-1
Abstract: The roof of Tashan coal mine was hard and difficult to fall. In the process of fully mechanized coal caving in the Carboniferous extra-thick coal seam, the strong pressure and rock burst appeared in the… read more here.
Keywords: seam; layer; coal; working face ... See more keywords
Similar Material Simulation Test of Overlying Strata Characteristics of Isolated Working Face Mining with Thick-Hard Strata
Sign Up to like & getrecommendations! Published in 2019 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-019-01076-9
Abstract: The overlying strata spatial structure of isolated working face under thick-hard strata is complex, and the overlying strata movement is drastic. Rock burst in this kind of isolated working face is easy to occur under… read more here.
Keywords: mining; overlying strata; isolated working; face ... See more keywords
Analysis of Main Controlling Factors of Overburden Failure in Coal Mining Under Thick Coal Seam Geological Conditions
Sign Up to like & getrecommendations! Published in 2020 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-020-01529-6
Abstract: According to the theory of elastic mechanics half plane, the mechanical model of roof overburden failure is established. Based on the numerical simulation software FLAC3D, the failure process of roof overburden in 1308 working face… read more here.
Keywords: mining; analysis; coal; overburden failure ... See more keywords
Research on the Regular of Underground Pressure by Similarity Simulation
Sign Up to like & getrecommendations! Published in 2021 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-021-01793-0
Abstract: Correct and reasonable estimation of roof pressure regular and mine pressure behavior is conducive to better service of mine safety mining. Based on 1304 working face of Heba coal mine as the engineering research background,… read more here.
Keywords: underground pressure; research; regular underground; simulation ... See more keywords
Effects of radial air flow quantity and location of an air curtain generator on dust pollution control at fully mechanized working face
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2017.04.019
Abstract: Abstract To better understand the effects of radial air flow quantity and the location of air curtain generator on dust pollution control, the 2–109 2 fully mechanized working face in Xinzhi coal mine (Huozhou Coal… read more here.
Keywords: control; radial air; air curtain; air ... See more keywords
Upper bound analysis of working face passive failure in large-diameter shield tunneling based on a composite mechanism
Sign Up to like & getrecommendations! Published in 2021 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2021.104362
Abstract: Abstract This paper investigates the passive instability of the working face of large-diameter shield tunneling in frictional soils by developing a new mechanism. The proposed composite mechanism comprises rotational and translational blocks, and failure is… read more here.
Keywords: diameter shield; failure; composite mechanism; large diameter ... See more keywords
Determination of critical value of an outburst risk prediction index of working face in a coal roadway based on initial gas emission from a borehole and its application: A case study
Sign Up to like & getrecommendations! Published in 2020 at "Fuel"
DOI: 10.1016/j.fuel.2020.117229
Abstract: Abstract This study developed a platform for determination of the predictive index for outbursts by simulating the field working face of coal roadway and a system for determining briquetting pressures of coal briquettes. Taking a… read more here.
Keywords: outburst risk; index; value; coal ... See more keywords
Stress distribution and surrounding rock control of mining near to the overlying coal pillar in the working face
Sign Up to like & getrecommendations! Published in 2019 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2018.07.003
Abstract: Abstract The occurrence of overlying coal pillar (OCP) exerts a strong effect on the stress and strain distribution of the surrounding rock in the stope. In this paper, the stress distribution characteristics are analyzed via… read more here.
Keywords: surrounding rock; stress; distribution; working face ... See more keywords
Identifying Balls Feature in a Large-Scale Laser Point Cloud of a Coal Mining Environment by a Multiscale Dynamic Graph Convolution Neural Network
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c05473
Abstract: In the process of coal mining, a certain amount of gas will be produced. Environmental perception is very important to realize intelligent and unmanned coal mine production and operation and to reduce the accident rate… read more here.
Keywords: point cloud; coal; coal mine; working face ... See more keywords
Gas Emergence Characteristics of the Upper Corner on the 215101 Mining Working Face of the Yue Nan Coal Mine
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c02898
Abstract: To prevent the gas over limit in the upper corner of the 215101 working face of the Yue Nan coal mine, a numerical simulation method was used to analyze the gas concentration in the upper… read more here.
Keywords: working face; gas; area; upper corner ... See more keywords