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

Table 3

The sample point data of the experiment.

Sample point (degree from the pipe bottom) (°)	Internal pipe strain ()	External pipe strain ()	Pipe radial stress (kPa)
0	4.868	1.503	63.201
45	5.174	3.842	76.324
90	5.203	0.701	50.504
135	−6.012	−4.507	−100.761
180	−6.678	−3.958	−135.723