Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel

Figure 7

Uniaxial strength of carbonaceous slate and sandstone at different mileage in the no. 2 inclined shaft. Strength of carbonaceous slate (a) in the natural state and (b) after 24 hours of water absorption. Strength of sandstone (c) in the natural state and (d) after 24 hours of water absorption.

(a)

(b)

(c)

(d)