【摘要】 结合粉喷桩复合地基的特点,提出采用过渡层模拟桩土接触面的思路,进行了轴对称Biot固结有限元计算分析。与实测资料对比表明,可较好地揭示粉喷桩复合地基的荷载传递规律和沉降变形特性。通过对加固区和下卧层的应力计算分析,揭示了粉喷桩复合地基的附加应力场的分布特性,说明所采用的计算方法是合理可行的。更多还原

【Abstract】 On the basis of the characteristics of DJMP,the authors put forward the method where the interface between earth and pile is simulated by’transition layer’and analyzed the axis symmetry Boit consolidation with FEM.Comparison with the field data revealed the rules of the load transfer behavior and the characteristics of settlement deformation.The stress field of the reinforced area and the underlying stratum was calculated and the distribution characteristics of the additional stress field of DJMP composite ground was revealed.The method is proved to be reasonable and feasible.更多还原