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- W2371777990 abstract "The coal mining in the underground mine could cause the damage and pollution to the water resources.In order to protect the surface water resources in S mining area and ensure the safety mining operation,base on the analysis of the strata engineering and geological features in the mining area and according to the strata column of the mining area,a mechanics model of the seam and strata was established.With the application of FLAC to calculate the strata stress field when the coal mining face advanced forward in different distances,a distribution figure of the strata plastic area was mapped.The paper analyzed the stress features and failure height of the strata when the coal mining operation in the seam with the thin base rock and thick soft strata.The shearing failure ware mainly occurred at the coal wall and open-off cut and the tensile failure ware mainly occurred at the strata above the goaf.With the coal mining face advanced forward,the strata failure would affect to the floor in the Fourth System.The paper had a detail analysis on the physical mechanics features of the clay layer at the bottom of the Fourth System.The clay layer had a excellent water isolation.Then the paper pointed that the coal mining face could have a safety mining with a engineering certificate." @default.
- W2371777990 created "2016-06-24" @default.
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- W2371777990 date "2008-01-01" @default.
- W2371777990 modified "2023-09-23" @default.
- W2371777990 title "Research on overburden strata failure case after mining operation in S mining area" @default.
- W2371777990 hasPublicationYear "2008" @default.
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