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Advances in Civil Engineering
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2023
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Article
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Tab 1
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Research Article
Study of the Roof Deformation Characteristics of Roadway Excavation Face and Unsupported Roof Distance
Table 1
Calculation parameters of the maximum unsupported roof distance of the plate model.
Roadway width
a
(m)
Thickness of separated rock mass
h
(m)
Tensile strength
σ
t
(MPa)
Uniformly distributed load
q
(MPa)
4.6
0.87
3.67
0.191