Back Analysis of the Permeability Coefficient of a High Core Rockfill Dam Based on a RBF Neural Network Optimized Using the PSO Algorithm

Table 4

Measured hydraulic head under unsteady seepage condition.

Osmometer number		DB-C-P-27	DB-C-P-35	DB-C-P-43	DB-C-P-24	DB-C-P-33	DB-C-P-21	DB-C-P-40
Excess pore water pressure (m)		115.32	91.91	43.39	—	—	—	—
August 19, 2013	Measured hydraulic head (m)	763.15	790.68	787.84	788.35	789.63	789.06	792.35
	Correction hydraulic head (m)	647.83	698.77	742.45	788.35	789.63	789.06	792.35
September 16, 2013	Measured hydraulic head (m)	770.66	798.14	796.32	801.79	803.53	801.20	804.85
	Correction hydraulic head (m)	655.34	706.23	750.93	801.79	803.53	801.20	804.85