Study on Stress-Strain Characteristics of Pipeline-Soil Interaction under Ground Collapse Condition

Figure 15

The pipeline ultimate deformation under different pipeline wall thicknesses.

(a) The pipeline wall thickness is 7.9 mm

(b) The pipeline wall thickness is 16.2 mm

(c) The pipeline wall thickness is18.4 mm

(d) The pipeline wall thickness is 20.6 mm