Particle Swarm Optimization of Support Vector Machine Inversion Model for Overhead Upright Piers Damage-Inducing Factor

Table 1

Material parameters.

Material category	Density (kg/m^3)	Young modulus (Pa)	Poisson ratio	Internal friction angle (°)	Cohesion (kPa)	Expansion angle (°)
Reinforced concrete	2,500	3.0 × 10^10	0.25	–	–	–
Steel member	7,850	2.06 × 10^11	0.3	–	–	–
Riprap compaction	2,300	2.5 × 10^10	0.25	37	5	0.1
Bedrock	2,400	2.2 × 10^10	0.21	32	150	0.1