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Advances in Civil Engineering
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2021
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Article
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Tab 1
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Research Article
Numerical Investigation on Time-Dependent Deformation in Roadway
Table 1
The support materials.
Parameters, unit
Rock bolt
U-shaped steel sets
Shotcrete
Elastic modulus (GPa)
200
200
30
Poisson’s ratio
0.3
0.25
0.15
Diameter/thickness (mm)
22
15
100