Examination and Appraisal of Liquefaction Vulnerability Between Idriss–Boulanger Method and Andrus–Stokoe Method

Autor: Tejas P. Thaker, Chandresh Solanki, Manali Patel
Rok vydání: 2021
Předmět:
Zdroj: Lecture Notes in Civil Engineering ISBN: 9789813340008
DOI: 10.1007/978-981-33-4001-5_21
Popis: The occurrence of pore pressure build-up due to earthquake subsequent with the harm of soil strength is known as liquefaction. The outcome of soil liquefaction on existing structures can be extremely disastrous. Buildings foundations rested directly on sand are prone to liquefy easily and hence lose the support, which upshots in severe and uneven settlement of the structure causing structural damage. Liquefaction potential is a term to specify whether the soil will liquefy or not. As per Bureau of Indian Standards, Ahmedabad region falls under moderate zone of earthquake hence there is a prodigious need of consideration of liquefaction potential. Around 1200 bore log data were collected from several laboratories like KCT consultancy, Ahmedabad Municipal Corporation, Anandjiwala laboratory, and Geotech Soil Testing laboratory. The soil layers of the Ahmedabad city are frequently loose alluvial soil and clayey sand which are more susceptible to liquefaction. The aim of present study is to relate the liquefaction potential by consuming two field test methods that are SPT-N value and shear wave velocity (Vs). The core objective behind the current study is to link and evaluate the liquefaction potential for Ahmedabad region and to map the liquefaction severity for the region on the basis of these two methods. Consuming these subsurface statistics, quantifiable valuation of liquefaction potential has been attempted and different hazard maps have been produced at different depths.
Databáze: OpenAIRE