Study on Effects of Earthquake Response of Soft Interlayer

Abstract:

This paper carried on the numerical analysis about the impact on soft soil ground seismic effect according to the buried depth and thickness of the soft interlayer, which took Jiangsu typical stratigraphic distribution and some engineering field as the prototype. In order to analyze the impact of buried depth and thickness of soft soil interlayers on the surface of the ground motion parameter, this paper combined with the formation parameters and calculated 3 sections which the thickness of soft soil interlayers were respectively 3m, 5m and 9m, in condition of the buried depth of the soft soil interlayer was constant. Choose ElCENTRO process curve for site seismic response analysis. The results showed that the influence of soft soil interlayer thickness on ground surface acceleration peak value was related with the location of weak interlayer. The influence of soft interlayer thickness on earthquake peak acceleration A_max and the eigenperiod T_g was more obvious; When the thickness of the soft interlayer increased, the earthquake peak acceleration decreased, the maximum speed decreased, and the maximum displacement increase; When the thickness of the soft interlayer increased, The maximum response spectrum decreased, the cycle of response spectrum peak increased, and the eigenperiod increased.

• Periodical: Advanced Materials Research (Volumes 1049-1050)
• Pages: 205-208
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1049-1050.205
• Online since: October 2014
• Authors: Xiong Xia, Yi Bo Wang*, Sai Ying Xi, Jun Sun, Han Dong Xu, Yi Huang
• Keywords: Cover, Seismic Response, Soft Clay Interlayer, Time Travel Curve of Earthquake Motion

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