Sneha was the lead author, and her coauthors were Russell Green and Adrian Rodriguez-Marek of Virginia Tech University and Brett Maurer of the University of Washington.
Sneha is a Senior Staff Professional who focuses on geotechnical engineering and geotechnical earthquake engineering.
The Journal of Geotechnical and Geoenvironmental Engineering, published by the American Society of Civil Engineers (ASCE), covers geotechnical engineering. Topics include foundations, retaining structures, soil dynamics, engineering behavior of soil and rock, site characterization, slope stability, dams, rock engineering, earthquake engineering, environmental geotechnics, geosynthetics, computer modeling, groundwater monitoring and restoration, and coastal and geotechnical ocean engineering. Authors are also encouraged to submit papers on new and emerging topics within the general discipline of geotechnical engineering.
The ASCE represents more than 150,000 civil engineers in 177 countries. Founded in 1852, it is the nation’s oldest engineering society.
Abstract
Current simplified models for predicting liquefaction triggering and manifestation do not consistently or efficiently account for the mechanisms of liquefaction triggering and surface manifestation. Specifically, an artifact of the way simplified triggering curves have traditionally been developed is that they inherently include some factors that influence surface manifestations, particularly for medium-dense to dense soils. As a result, using the simplified triggering curves in conjunction with the manifestation models results in the double-counting, omission, or general obscuration of distinct factors that influence triggering and manifestation. This paper develops a framework for deriving a true simplified liquefaction triggering model consistent with a defined manifestation model, such that factors influential to triggering and manifestation are handled more rationally and consistently. Operating in conjunction with the LSNish manifestation model, the performance of the true triggering curve is compared with an existing, popular triggering curve using a set of 50 global case histories; the results are favorable for the proposed framework. Furthermore, the ability of the true liquefaction model to be used in conjunction with manifestation models that account for complex free-field soil profile stratigraphies or developed sites is a significant advantage over traditionally developed triggering models.
More Information
Learn more about the article: True Liquefaction Triggering Curve | Journal of Geotechnical and Geoenvironmental Engineering | Vol 149, No 3 (ascelibrary.org)
Learn more about the organization: About ASCE | ASCE
For consultation regarding true simplified liquefaction triggering models, contact at supadhyaya@geosyntec.com.
Learn more about Sneha Upadhyaya at Sneha Upadhyaya, PhD | LinkedIn.
