PhD Gloria Campilongo Doctoral School SIACE - Dottorato di ricerca in “Scienze e Ingegneria dell’Ambiente, delle Costruzioni e dell’Energia”

liquefazione e sisma

Liquefaction and earthquake

Liquefaction and earthquake Liquefaction is an extraordinarly complex and potentially destructive phenomenon that can occur during a seismic event of significant intensity. The accelerations generated by a seismic event result in an increase in the neutral pressure of the interstitial water contained in saturated sandy soil. Figure 1 – Comparison between stable soil on the…

VS30 mapping and site characterization in the seismically active intraplate region of Western India: implications for risk mitigation (Da Sairam et al, 2019)

Dynamic Characterization: Understanding the Response of Soil to Seismic Events

Dynamic characterization is a crucial step in designing earthquake-resistant structures. Non-destructive geophysical techniques like MASW are used to predict the shear wave velocity and provide valuable information for site characterization, ground response analysis, and micro zonation mapping. Studies have shown that NEHRP, IBC, and NTC2018 provisions can be used to classify soil profiles based on their shear wave velocities.

piezometro piezometer

The piezometer

The piezometer What is a piezometer? The piezometer is an instrument for measuring the level of the water table and/or the interstitial pressures. This instrumentation is installed in the probing hole and performed with continuous core drilling or core destruction. Types of piezometer There are different types of piezometers adopted in low to the hydrogeological…

Dynamic probing test and empirical formulas

Dynamic probing test and empirical formulas In situ investigations The purpose of the in situ investigations is to adopt appropriate techniques to allow the determination of the physical-mechanical characteristics of the soils. In-situ investigations include penetrometric tests commonly used for the physical-mechanical characterization of the significant subsoil volume. The combination of these tests with surveys,…

Liquefaction resistance of soil with Liquiter

Liquefaction resistance of soil with Liquiter Simplified procedure for evaluating liquefaction resistance of soils Following disastrous earthquakes that occurred in Alaska and Niigata (Japan in 1964), Seed and Idris (1971) proposed a simplified methodology for assessing the resistance to liquefaction of soils. This methodology has been selected and improved over the years (e.g. Seed, 1979;…