Table 3
Design of test conditions
Test case
Category
Segment lengths (cm)
Number of segments
Connector
1
Double-line box tunnel
24, 36
17
Special “T” shaped rubber ring
2
Double-line box arch tunnel
24, 36
17
Special “T” shaped rubber ring
Test case
Category
Segment lengths (cm)
Number of segments
Connector
1
Double-line box tunnel
24, 36
17
Special “T” shaped rubber ring
2
Double-line box arch tunnel
24, 36
17
Special “T” shaped rubber ring
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