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港口工程建设中经常遇到海相软土地基,海相软土是一种流变性很强的饱和软粘土,次固结变形在总变形中占有一定的比重,次固结系数是用来计算次固结变形量的一个重要参数。现有计算软土次固结变形的常用方法是不考虑荷载对其影响的,大量的试验表明荷载对次固结有较明显的影响。本文以三亚海相软土为例,根据室内试验成果,对其次固结变形特性与荷载的关系进行了分析研究,得出了一些规律性结论,对海相软土地基的设计与工程实践有指导意义。
Marine engineering is often encountered in the construction of marine soft ground, marine soft clay is a highly deformable saturated soft clay, secondary consolidation deformation in the total deformation of a certain proportion, secondary consolidation coefficient is used to calculate Secondary consolidation deformation is an important parameter. The common method for calculating sub-consolidation deformation of soft clay is to ignore the effect of the load. A large number of tests show that the load has obvious influence on the sub-consolidation. Taking the marine soft soil in Sanya as an example, this paper analyzes the relationship between the secondary consolidation deformation and load according to the laboratory test results, and draws some regular conclusions. The design and engineering practice of marine soft soil foundation Guiding significance.