【摘要】 基于一维大变形固结理论,考虑饱和黏土的压缩性和渗透性的非线性变化,取消了小应变的限制条件,在流动柱体坐标系下,推导建立了以孔隙比为变量的砂井地基大变形固结控制方程。采用交替隐式差分法编程求解了砂井地基大变形固结方程,通过工程实例分析,验证了控制方程及差分求解程序JEFD02的合理性和适用性。本文将大变形固结理论引入砂井处理超软地基的固结计算,对该类地基的固结预测估算方法进行了一次有意义的探索。更多还原

【Abstract】 Based on the large strain theory of one-dimensional consolidation,considering the nonlinear variation of the compressibility and permeability of soft soil and ignoring the limitation of small strain,the governing equation of consolidation on soft ground with vertical drains(SGVD) is developed.The alternating direction implicit method of finite difference method is adopted to solve the governing equation,and the relevant program JEFD02 is prepared.From the analysis of the case,the liability and the usefulness of the solution are verified.The large strain consolidation theory is brought into SGVD,and a significant attempt on the project is provided.更多还原