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Study on the dynamic characteristics of soft soil

机译:软土动态特性研究

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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.
机译:软土是一种特殊类型的综合土壤,广泛分布在中国沿海地区。近年来,随着天津的快速发展,柔软的土壤建立了越来越多的公共建筑物。软土对该地区建筑物的安全性构成了不可察觉的风险。本文统计学分析天津软土的物理和动态特性,并提供相应的范围值。结果如下。 (1)除流动性指数外,其他物理性质之间存在一定的相关性; (2)通过实验进行分析,给出了固结时间,固结比和有效限制对软土的动态剪切模量比和阻尼比的影响。 (3)给出了该区域中粘土剪力波速度与毛粘度和粉碎粘土之间的关系模型。 (4)分析了不同动力学参数对设计响应谱的影响。本文中描述的工作对于从事软土研究的工人有价值。

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