Dynamic Response Analysis of Buried Drainage Pipes for Polymer Grouting Trenchless Rehabilitation under the Traveling Wave Effect

Figure 6

Longitudinal vibration displacement time course curves of pipes at different positions. (a) Wave speed  = 100 m/s (normal). (b) Wave speed  = 200 m/s (vacant). (c) Wave speed  = 500 m/s (polymer grouting repair).

(a)

(b)

(c)