Liquefaction Macro-Characteristics in Chengdu Region in Wenchuan Ms8.0 Earthquake

Abstract:

In Wenchuan earthquake, liquefaction phenomena and relevant damage in Chengdu region was extensive. Through field investigation, macro-liquefaction characteristics in Chengdu region are outlined, i.e., (1) Liquefaction zones (belts) mainly were located in Dujiangyan city; (2) Liquefaction has been observed in seismic intensities VI, VII, VIII, IX and X, but mainly concentrated in intensities VII and VIII; (3) Heights of liquefaction water-jet mostly ranged in 1m to 3m, and the highest was more than 10m; (4) The ejected materials in liquefied sites covered many soil categories, nearly 67% of fine sand and 11% of gravel; (5) Liquefaction generally caused ground fissures, but obvious ground subsidence were not detected. Although the ejected materials mainly were fine-grained soil, the actual liquefaction was prevalent gravel soil

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 1893-1896
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.1893
• Online since: January 2012
• Authors: Wei Ming Wang, Long Wei Chen, Xiao Ming Yuan
• Keywords: Characteristic, Chengdu Region, Liquefaction, Wenchuan Earthquake

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