Geotechnical · Earthquake Engineering · Research

Understanding the ground,
one wave at a time.

I am Dr. Louizos Tsantilas, a geotechnical civil engineer and researcher specializing in earthquake geotechnics — soil dynamics, liquefaction, site response and soil–structure interaction. This is my home on the web: research, consulting, teaching, and a few creative detours.

Period T (s) Sa (g) recorded code spectrum
Acceleration response spectraRecorded motion vs. design code spectrum — replace with your own figure.

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Everything lives one click away — research, consulting, teaching, and the creative side.

From the research

A few figures from my work in soil dynamics and earthquake geotechnics. (Placeholder plots — swap in your own diagrams.)

γ (%) τ (kPa)
Cyclic shear stress–strain loopsStiffness degradation under cyclic loading.
liquefiable qc (MPa) Depth (m)
CPT cone resistance profileIdentifying a liquefiable layer at depth.
(N1)60cs CSR
Liquefaction triggering chartCase histories vs. the triggering boundary curve.
σ′ (kPa) τ (kPa) τ = c′ + σ′·tanφ′
Mohr circles & failure envelopeEffective stress strength parameters from triaxial tests.
f₀ site Frequency (Hz) Amplification
Site response transfer functionFundamental site frequency from 1-D ground response analysis.