Correlation of shear wave velocity with liquefaction resistance based on laboratory tests

✍ Scribed by Chen Yunmin; Ke Han; Chen Ren-peng

• Book ID: 104093313
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 502 KB
• Volume: 25
• Category: Article
• ISSN: 0267-7261
• DOI: 10.1016/j.soildyn.2005.03.003

✦ Synopsis

According to the results of cyclic triaxial tests on Hangzhou sands, a correlation is presented between liquefaction resistance and elastic shear modulus. Material-dependent but independent of confining stress, shows the linear relation of (s d /2) 1/2 with G max . For its application to different soils, a method proposed by Tokimatsu [Tokimatsu K, Uchida A. Correlation between liquefaction resistance and shear wave velocity. Soils Found 1990:30(2):33-42] is utilized to normalize the shear modulus with respect to minimum void ratio. A simplified equation is established to evaluate the liquefaction potential by shear-wave velocity. The critical shear-wave velocity of liquefaction is in linear relation with 1/4 power of depth and the peak horizontal ground surface acceleration during earthquakes. The equation proposed in this paper is compared with previous methods especially the procedure proposed by Andrus [RD Andrus, KH Stokoe. Liquefaction resistance of soils from shear-wave velocity. J Geotech Geoenviron Eng 2000:126(11):1015-25]. The results show its simplicity and effectiveness when applied to sands, but more validation or modification is needed for its application to sand with higher fines content.