Different Deformation Patterns in High Core Wall Rockfill Dams: A Case Study of the Maoergai and Qiaoqi Dams

Table 5

Physical properties of the overburden layers in the Qiaoqi dam.

Deposits					fglQ3
Grain content (mean)	>200	20.2%	27.2%	7.4%	15.5%
	60–200	27.5%	23.3%	20.7%	25.0%
	2–60	35.0%	38.0%	45.0%	35.0%
	0.005–2	15.0%	11.5%	15.0%	12.5%
	<0.005	—	0.67%	—	—
Mean dry density (g/cm³)		2.1	2.1	2.1	2.1
Thickness (m)		17–21	17–28	4–10.5	8–24
Mean permeability (cm/s)		5.3e–3	6.0e–4	5.3e–3	2.2e–2