Table 9. Summary of Δ ψ bias by each...

Table 9.

Summary of $Δ ψ$ bias by each method for selected soils at loose and dense states

$Δ ψ = ψ_{trendline} - ψ_{selected}$	Δ $ψ$ at $ψ$ = −0.3 (dense state)				Δ $ψ$ at $ψ$ = −0.05 (threshold)				Δ $ψ$ at $ψ$ = 0.1 (loose state)
$Δ ψ = ψ_{trendline} - ψ_{selected}$	P^a	CE	EQ	R	P	CE	EQ	R	P	CE	EQ	R
Da Nang	−0.04	0.00	−0.19	−0.01	−0.06	−0.07	−0.13	0.02	−0.08	−0.11	−0.09	0.04
Erksak	0.01	0.03	−0.06	−0.02	0.03	0.04	0.01	0.07	0.05	0.05	0.05	0.12
Hilton Mines	−0.04	−0.08	−0.20	0.15	−0.07	0.02	−0.06	0.14	−0.09	0.08	0.03	0.14
Hokksund	0.01	0.01	−0.08	0.03	0.02	−0.01	0.00	0.17	0.02	−0.03	0.04	0.26
Ottawa	−0.02	0.00	−0.15	−0.10	0.00	0.02	−0.03	0.06	0.01	0.03	0.05	0.15
Syncrude oil tailings	−0.14	0.01	−0.15	−0.10	−0.01	0.01	−0.04	0.08	0.07	0.01	0.03	0.19
Ticino 4	0.06	0.01	−0.05	0.09	−0.02	−0.01	−0.05	0.09	−0.07	−0.03	−0.04	0.10
Ticino 9	0.18	0.04	−0.08	0.02	0.03	0.02	−0.01	0.10	−0.06	0.02	0.03	0.14
Toyoura 160	0.01	−0.02	−0.22	−0.01	−0.02	−0.02	−0.09	0.08	−0.04	−0.02	−0.02	0.14
Average	0.01	0.00	−0.13	0.00	−0.01	0.00	−0.04	0.09	−0.02	0.00	0.01	0.14

$Δ ψ = ψ_{trendline} - ψ_{selected}$	Δ $ψ$ at $ψ$ = −0.3 (dense state)				Δ $ψ$ at $ψ$ = −0.05 (threshold)				Δ $ψ$ at $ψ$ = 0.1 (loose state)
$Δ ψ = ψ_{trendline} - ψ_{selected}$	P^a	CE	EQ	R	P	CE	EQ	R	P	CE	EQ	R
Da Nang	−0.04	0.00	−0.19	−0.01	−0.06	−0.07	−0.13	0.02	−0.08	−0.11	−0.09	0.04
Erksak	0.01	0.03	−0.06	−0.02	0.03	0.04	0.01	0.07	0.05	0.05	0.05	0.12
Hilton Mines	−0.04	−0.08	−0.20	0.15	−0.07	0.02	−0.06	0.14	−0.09	0.08	0.03	0.14
Hokksund	0.01	0.01	−0.08	0.03	0.02	−0.01	0.00	0.17	0.02	−0.03	0.04	0.26
Ottawa	−0.02	0.00	−0.15	−0.10	0.00	0.02	−0.03	0.06	0.01	0.03	0.05	0.15
Syncrude oil tailings	−0.14	0.01	−0.15	−0.10	−0.01	0.01	−0.04	0.08	0.07	0.01	0.03	0.19
Ticino 4	0.06	0.01	−0.05	0.09	−0.02	−0.01	−0.05	0.09	−0.07	−0.03	−0.04	0.10
Ticino 9	0.18	0.04	−0.08	0.02	0.03	0.02	−0.01	0.10	−0.06	0.02	0.03	0.14
Toyoura 160	0.01	−0.02	−0.22	−0.01	−0.02	−0.02	−0.09	0.08	−0.04	−0.02	−0.02	0.14
Average	0.01	0.00	−0.13	0.00	−0.01	0.00	−0.04	0.09	−0.02	0.00	0.01	0.14

P for Plewes et al. (1992), CE for cavity expansion (Shuttle and Jefferies, 1998 and Ghafghazi and Shuttle, 2008), EQ for the simplified equations of Shuttle and Jefferies (1998), and R for Robertson (2010)

[ViewLarge]

Sharing Unavailable