Study on Damage Model and Damage Evolution Characteristics of Backfill with Prefabricated Fracture under Seepage-Stress Coupling

<div>Damage evolution curves of backfill under different confining pressures. (a) Intact backfill. (b) Backfill with prefabricated fracture.</div>

Advances in Materials Science and Engineering

Figure 7: Study on Damage Model and Damage Evolution Characteristics of Backfill with Prefabricated Fracture under Seepage-Stress Coupling 