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What is liquefaction? | U.S. Geological Survey - USGS.gov
Liquefaction occurring beneath buildings and other structures can cause major damage during earthquakes. For example, the 1964 Niigata earthquake caused widespread liquefaction in Niigata, Japan which destroyed many buildings. Also, during the 1989 Loma Prieta, California earthquake, liquefaction of the soils and debris used to fill in a lagoon ...
Liquefaction-induced building movements | Bulletin of Earthquake …
2014年4月26日 · Liquefaction-induced building movements have caused much damage in recent earthquakes. Buildings have punched into, tilted excessively, and slid laterally on softened ground in Turkey, Taiwan, Chile, New Zealand, and Japan, among other locations.
Liquefaction of Soil During Earthquakes | Maps, Video - Geology.com
Liquefaction occurs when vibrations or water pressure within a mass of soil cause the soil particles to lose contact with one another. As a result, the soil behaves like a liquid, has an inability to support weight and can flow down very gentle slopes.
Liquefaction: Performance of Building Foundation Systems
2015年1月1日 · The consequences of liquefaction in terms of ground displacement, in turn, depend on site conditions, earthquake loading characteristics, and building properties. This article provides an overview of the state of practice in evaluating liquefaction-induced building settlements in geotechnical engineering.
Modelling liquefaction-induced building damage in earthquake …
2006年1月1日 · The potential for earthquake-induced liquefaction to cause significant damage to buildings in earthquakes is well known. Destructive earthquakes in Kobe in 1995 and in Taiwan and Turkey in 1999 are prime examples of this, with numerous reports of buildings settling, tilting, sliding, or otherwise suffering due to the failure of the underlying ...
Liquefaction as a seismic hazard: Scales, examples and analysis
2021年1月1日 · Liquefaction is a major seismic hazard in areas with water saturated sandy soils and a moderate magnitude ~M>5.5 can trigger it. The liquefaction results in slope, bridge and foundation failures making urban areas more vulnerable.
Machine learning-based models for estimating liquefaction …
2024年7月1日 · Liquefaction-induced building settlements (LIBS) have significantly affected infrastructure in recent earthquakes. Most current LIBS models are based on traditional statistical approaches. Machine learning-based models are proposed and assessed holistically.
Assessment of Risk Posed by Earthquake-induced Soil Liquefaction …
We investigated the risk of earthquake-induced soil liquefaction on old buildings, prompted by recent devastating earthquakes such as Japan’s 0311 and Taiwan’s 0206 Kaohsiung Meinong quakes. A vulnerability analysis framework was developed using the Hyperbolic Function Method (HBF) and depth weight coefficients from Iwasaki and Ishihara’s ...
Evaluating and Explaining Earthquake-Induced Liquefaction …
2025年2月11日 · This study presents an explainable parallel transformer architecture for soil liquefaction prediction that integrates three distinct data streams: spectral seismic encoding, soil stratigraphy tokenization, and site-specific features. The architecture processes data from 165 case histories across 11 major earthquakes, employing Fast Fourier Transform for seismic waveform encoding and principles ...
Liquefaction Risk Assessment and Microzonation in Bengkulu …
3 天之前 · This paper looks at the risks of liquefaction and microzonation in the port area of Bengkulu City after a major earthquake. The study began by collecting existing data on shear wave velocity (Vs) and included new data from measuring ambient noise to calculate Vs. The researchers also measured the actual groundwater levels on-site. They investigated 30 locations to get a complete picture of the ...