Seismic Safety Review of Gravity Dam Based on Finite Element Method

Table 1

Concrete material parameters.

Material number	Name of the material	Density (kg·m^-3)	Elastic modulus (GPa)	Poisson ratio	Internal friction angle (°)	Cohesive force (kPa)
1	Section I	2400	25.50	0.167	/	/
2	Section II	2400	25.50	0.167	/	/
3	Section III	2400	25.50	0.167	/	/
4	Section IV	2400	22.00	0.167	/	/
5	Section V	2400	22.00	0.167	/	/
6	Curtain grouting	2400	28.00	0.167	/	/
7	Basement	2100	26.70	0.27	29.0	40

Note: according to the content of the aseismic design standard, the standard value of dynamic elastic modulus of concrete material can be 50% higher than its static standard value, and the standard value of dynamic tensile strength can be 10% of the standard value of dynamic compressive strength.