Study on the dynamic characteristics of soft soil |
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| Authors: | Feng Qiao JingShan Bo WenHao Qi Liang Wang ChaoYu Chang ZhaoPeng Zhang Jing Wang |
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| Affiliation: | Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080 China ; Institute of Disaster Prevention, Sanhe 065201 China ; Xian Research Institute of China Coal Research Institute, Xi''an 710077 China ; North University of China, Taiyuan 030051 China ; Sichuan Earthquake Administration, Chengdu 610041 China, |
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| Abstract: | Soft soil is a special type of under-consolidated soil widely distributed in coastal areas of China. In recent years, with the rapid development of Tianjin, an increasing number of public and civil buildings have been built on soft soil. Soft soil poses an imperceptible risk to the safety of buildings in the area. This paper statistically analyzes the physical and dynamic properties of soft soil in Tianjin, and gives the corresponding range values. The results are as follows. (1) Except for the liquidity index, there is a certain correlation between other physical properties; (2) analyzed by experiment, the effects of consolidation time, consolidation ratio, and effective confining pressure on the dynamic shear modulus ratio and damping ratio of soft soil are given. (3) A model of the relationship between shear wave velocity and burial depth of clay and silty clay in the region is given. (4) The influence of different kinetic parameters on the design response spectrum is analyzed. The work described in this article is valuable for workers engaged in soft soil research.Soft soil is a special type of under-consolidated soil widely distributed in coastal areas of China. |
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