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Geofluids
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2021
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Article
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Tab 1
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Research Article
Evolution Law of Floor Fracture Zone above a Confined Aquifer Using Backfill Replacement Mining Technology
Table 1
Parameters of each scheme.
Plan number
Width of excavated coal pillar (m)
Width of retained coal pillar (m)
1
10
10
2
20
20
3
30
30
4
40
40