Investigation on the Creep Failure Mechanism of Sandy Mudstone Based on Micromesoscopic Mechanics

Figure 7

Microstructure of sandy mudstone specimens after uniaxial creep test.

(a) Sample #4 (×2000)

(b) Sample #5 (×2000)

(c) Sample #5 (×3300)

(d) Sample #6 (×5000)

(e) Sample #5 (×5000)

(f) Sample #6 (×5000)

(g) Sample #4 (×10000)

(h) Sample #5 (×10000)