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

Table 2

Soil parameters.

Soil parameters	Elastic modulus (MPa)	Poisson	Density (kg/m^3)	Angle of internal friction (°)	Expansion angle (°)	Flow stress ratio
Soil mass	32.5	0.3	2040	25	0	1