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Geofluids
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2020
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Article
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Tab 1
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Research Article
Research on the Influence of Slurry Filling on the Stability of Floor Coal Pillars during Mining above the Room-and-Pillar Goaf: A Case Study
Table 1
Parameters in FLAC3D numerical simulation.
Layers
Bulk modulus
(Pa)
Shear modulus
(Pa)
Cohesion
(MPa)
Internal friction angle
(°)
Tensile strength
(MPa)
Soft rock
24
Coal seam
18
Key strata
32