Probabilistic seismic hazard analysis of civil infrastructure - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 18

0.5

95% 50% 5%
80% 20%

0.4

Liquefaction

0.3

0.2

No liquefaction

0.1

Seismic demand for the 16th event

0.0

0 10 20 30 40

Corrected SPT blow count N 1,60

(a)

10 -1

Vancouver
N in situ : 5
Depth: 5 m
FC : 20%
Water table: 2 m
N S12 : 125 m/s

10 -2

0.0071

10 -3

10 -4

10 5 2

Factor of safety

1 0.5 0.2 0.1

(b)

1.7 (a) Comparison of the cyclic stress ratio for the 16th event in a
synthetic earthquake catalogue with the cyclic resistance ratios with
different confi dence levels, and (b) liquefaction hazard curve based on
the factor of safety for Vancouver.