4061\Interview Presentation 1

• Zahra Amini, Ph.D.

– Over 6 Years of Geotechnical and Earthquake Engineering Experience

– Seismic Analysis and Design of Various Facilities (Hospitals, Dams, LNG Facilities, Landfills)

– Extensive Experience with Geotechnical Numerical Modeling tools such as FLAC 2D & 3D

Geotechnical Modeling

• Benefits:– Cost saving in construction by implementing advanced numerical

methods to derive realistic results rather than using simplified methods that often lead to conservative results

– Regulatory acceptance by incorporating the most recent guidelines in California seismicity (UCERF3)

24061\Interview Presentation

FLAC Modeling Example

SOFT SOIL

BEDROCK

FILL

FLAC (Version 7.00)

LEGEND

22-Aug-16 13:53 step 742858Dynamic Time 9.0000E+01 3.144E+02 <x< 7.952E+02 5.439E+02 <y< 1.025E+03

User-defined Groups'Soft Rock''Cover Soil''Waste PM4SAND'

Grid plot

0 1E 2

0.575

0.625

0.675

0.725

0.775

0.825

0.875

0.925

0.975

(*10 3̂)

3.500 4.000 4.500 5.000 5.500 6.000 6.500 7.000 7.500(*10 2̂)

JOB TITLE : .

FLAC (Version 7.00)

LEGEND

22-Aug-16 13:58 step 150909 3.178E+02 <x< 7.960E+02 5.329E+02 <y< 1.011E+03

User-defined Groups'Soft Rock''Cover Soil''Waste PM4SAND'

Grid plot

0 1E 2

0.550

0.600

0.650

0.700

0.750

0.800

0.850

0.900

0.950

1.000

(*10 3̂)

3.500 4.000 4.500 5.000 5.500 6.000 6.500 7.000 7.500(*10 2̂)

JOB TITLE : .

Before Shaking

After Shaking

34061\Interview Presentation

UCERF3 Changes

Los Angeles

San Jose Fault

MagnitudeUsed to be M7.0Now is M7.8