Study on Joint Damage of Double Prefabricated Fragments Penetrating Finite Thickness Concrete

Figure 17

Typical six types of abnormal surface damage forms. (a) Front pit-front pit (group 8). (b) Front pit-tunnel (group 6). (c) Front pit-penetration (group 3). (d) Tunnel-tunnel (group 15). (e) Tunnel-penetration (group 7). (f) Penetration-penetration (group 11).

(a)

(b)

(c)

(d)

(e)

(f)