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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
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2017
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Article
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Tab 1
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Research Article
The Breaking Span of Thick and Hard Roof Based on the Thick Plate Theory and Strain Energy Distribution Characteristics of Coal Seam and Its Application
Table 1
The value of parameters involved in calculation.
Parameters involved in calculation
Value
0.21
20 m
12 MPa
230 m
1.85 MPa