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- W2358678889 abstract "For researching the effect of highly confined water-bearing aquifer on coal mining in Huobaoganhe mine,we ascertained the main aquifer and water-resisting stratum characters and space distribution relations of the coal mine based on field investigated data.The result shows that the confined aquifer of coal floor is a middle water-rich artesian aquifer.In accordance with water inrush possibility of highly confined aquifer effect on lower-group coal seam,numerical calculation software of FLAC~(3D) was used to simulate the process.The relation between mining-face width and damaged coal floor depth are obtained together with seepage regulation.When mining-face width exceeds 160 m,seam floor damage depth doesn't change with the mining-face width but keeps a constant of value of 25 m.Seam floor damage depth added water-stopping zone is lower than water-resisting stratum thickness.In the process of fluid-mechanical interaction zone,pore pressure at the position of open-off cut rises to the maximum of 2.4 MPa. During the process,pore pressure is always lower than that of confined aquifer from beginning to the end.So it is impossible to induce water inrush from the floor." @default.
- W2358678889 created "2016-06-24" @default.
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- W2358678889 date "2010-01-01" @default.
- W2358678889 modified "2023-09-23" @default.
- W2358678889 title "Characteristics of Aquifer and Water-Resisting Stratum and Its Influence on Lower Coal Seam Mining in Huobaoganhe Colliery" @default.
- W2358678889 hasPublicationYear "2010" @default.
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