大型石油储罐复合地基稳定性分析

针对建立在松软地基上的大型石油储罐地基,提出了平面应变条件下复合地基沉降计算的复合本构有限元法,以某炼油厂地基资料为例建立了储罐地基处理的复合力学模型,采用数值仿真计算进行定量分析,得出了处理复合地基的一些规律。工程实例分析表明,该方法是有效的,可为储罐基础的工程设计提供依据。

Stability Analysis on Compound Ground of Large-size Storage Tank

Aim at the foundation of large-sized oilcan constructed on the weak ground, the finite element method for the settlement of composite ground based on composite constitutive law is proposed on condition of plane strain in this paper. The composite constitutive law of composite ground is obtained by means of equilibrium and compatibility at the interface between pile and soil around the pile. According to the geological references of a refinery, the compound mechanism model for compound ground treatment is established. Based on quantitative analysis by the numerical calculation, several disciplines on how to deal with groundwork are concluded. The numerical example illuminates the reliability and availability of the proposed method. The research works discussed provides valuable theoretical guidance for the design of oilcan foundation. It provide basis for solving the problems of oilcan foundation damage.