Zoning Modulus Inversion Method for Concrete Dams Based on Chaos Genetic Optimization Algorithm

Table 1

The actual initial modulus and modulus ranges corresponding to different material types.

Material types	Actual initial modulus; (GPa)	Modulus range; (GPa)
Zone A (dam body)	25.89	10.0–40.0
Zone B (dam body)	25.17	10.0–40.0
Zone C (dam body)	24.25	10.0–40.0
Zone I (rock)	24.56	10.0–40.0
Zone II (rock)	20.17	10.0–30.0
Zone IIIa (rock)	14.32	5.0–25.0
Zone IIIb1 (rock)	9.87	5.0–20.0
Zone IIIb2 (rock)	7.05	1.0–15.0
Zone IVa (rock)	5.21	1.0–15.0
Zone F7 (cataclastic rock)	2.02	1.0–10.0
Zone F11 (slightly weathered)	3.30	1.0–10.0
Zone F10 (slightly weathered)	3.42	1.0–10.0