Research Article

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

Table 2

Calculated stiffness values for normal, vacant, and repair conditions.

Work conditionsCalculated stiffness (107 N/m2)
Longitudinal vibrationTransverse vibration

Normal7.136.33
Vacant8.948.01
Polymer grouting repair6.045.97