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Advances in Civil Engineering
/
2018
/
Article
/
Tab 2
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Research Article
Study on the Stability of Surrounding Rock of Underground Circular Cavern Based on the Anchor Reinforcement Effect
Table 2
Anchor support parameters.
Parameter
Value
E
b
(GPa)
210
P
1
(kN)
0
d
b
(mm)
20
t
m
(mm)
10
L
(m)
2.4
S
r
(m)
1.0
S
l
(m)
1.0
σ
s
(MPa)
335