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Integrated Treatment Technology of Storage‐Mining Inclined Goaf under Expressway [PDF]
Advances in Civil Engineering, 2020 An inclined goaf caused by storage mining is a serious risk to subgrades and pavements. In this paper, effective investigation and detection methods of goafs were discussed considering the project of the Urumqi East Ring Expressway crossing the existing goaf of Zhongxing no. 2 mine.
Weixing Bao +5 more
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Energy Science &Engineering, EarlyView.Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng +7 more
wiley +1 more source
Meikuang Anquan, 2023 To analyze the distribution characteristics of regions with potential spontaneous combustion hazards in the goaf under descending ventilation in gently inclined coal seams with different spontaneous combustion tendencies, a seepage model of the inclined ...
Zenghui ZHANG
doaj +1 more source
Energy Science &Engineering, EarlyView.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
Impact of goaf gas drainage from surface vertical boreholes on goaf explosive gas zones
International Journal of Coal GeologyThe Australian underground coal mining industry has increasingly relied on goaf gas drainage to manage methane levels and reduce gas emissions in recent years. As mining operations go deeper and produce more gas, the spacing between vertical goaf gas drainage boreholes has narrowed, and suction pressure has increased.
Yuehan Wang +5 more
openaire +3 more sources
3D geological model reconstruction and collapse risk evaluation of old goaf in Dunqiu iron mine
Scientific ReportsThe complexity of goafs put forward higher requirements for detection methods. A comprehensive detection method for old goaf is proposed, that is, determining the plane distribution range of old goaf by using high-precision magnetic method, determining ...
Hailong Wang +3 more
doaj +1 more source
Research on meatal goaf detection: a case study on the Duan Village-Leigou monohydrallite goaf
International Journal of Geology, 2016 The increasing scope and depth of the mining formed more and more goaf. The geological disasters such as collapse in goaf bring the hidden danger to the people. Therefore, it is particularly important to accurately locate the goaf in the mining area. This article take a section of the Duan Village-Leigou monohydrallite goaf in Mianchi county of Henan ...
Zhao Shuxia, Wang Wanliang
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Energy Science &Engineering, EarlyView.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
Zhongguo dizhi zaihai yu fangzhi xuebao, 2021 Taking the investigation of the mined-out area of gypsum mine in Mengxi-Huazhong railway Jingmen-Yueyang section as an example, this paper introduces the comprehensive survey method of the mined-out area by the combination of remote sensing ...
Meng XIE
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