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

Figure 8

Longitudinal vibration displacement time curve of the pipe under normal, vacant, and polymer grouting repair. (a) At 800 m, wave speed  = 100 m/s. (b) At 500 m, wave speed  = 200 m/s. (c) At 200 m, wave speed  = 500 m/s.

(a)

(b)

(c)