Mechanism Research of Arch Dam Abutment Forces during Overload

Table 1

Material parameters.

Location	Elastic modulus (Gpa)	Bulk density (KN/m^3)	Poisson’s ratio	Cohesion (Mpa)	Friction angle (°)	Coefficient of thermal expansion (10^−6)
Dam body	18	2350	0.167	2	56	4.87
Abutment	14	2730	0.25	0.9	45
Base	11	2700	0.27	0.7	42
Unconformity	3	2660	0.3	0.35	35