Research Article

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

Table 5

The antibreaking effect of principal stress.

Working conditionsThe maximum value of the first principal stress (MPa)The antibreaking effect of the first principal stress (%)The maximum value of the third principal stress (MPa)The antibreaking effect of the third principal stress (%)

14.54ā€”16.72ā€”
22.3648.119.3644.04
33.0133.7010.7135.96
41.3769.826.0164.06