Model Test Study on the Antibreaking Technology of Reducing Dislocation Layer for Subway Interval Tunnel of the Stick-Slip Fracture

Table 2

Test grouping.

Working condition	Test contents
1	No antibreaking measures
2	The single reducing dislocation layer set between the surrounding rock and the primary support
3	The single reducing dislocation layer set between the secondary lining and the primary support
4	The double reducing dislocation layer respectively set between the surrounding rock and the primary support and between the primary support and the secondary lining.