Mechanical Characteristic Analysis of Buried Drainage Pipes after Polymer Grouting Trenchless Rehabilitation

Table 1

Performance parameters of the pipeline, soil, and polymer used in the experiment.

Material	Density (kg·m^−3)	Elastic modulus (MPa)	Poisson ratio	Cohesive force (kPa)	Internal friction angle	Dilatancy angle
Pipe	2400	30000	0.3	—	—	—
Soil	1980	60	0.3	40	30	0
Polymer	240	20	0.2	—	—	—