Treating weak saturated soil foundation by drainage powder jetting pile foundation can not only increase the bearing capacity of the foundation but also accelerate the drainage and consolidation process of the foundation. Having been commonly used in engineering, the plum blossom pile layout scheme is based on the foundation axisymmetric consolidation model (the powder jetting pile is the model center and the drainage board is located at the outer boundary of the model). It adopts reasonable boundary conditions and foundation seepage conditions and the method of pile-soil composite modulus and obtains the expression of the average excess pore water pressure of the composite foundation of the instantaneous loading of the drainage powder jetting pile under the simplified model. Therefore, the average consolidation degree of the foundation is acquired. The expression of the average consolidation degree can comprehensively reflect factors such as pile-soil modulus ratio, displacement ratio, drain spacing ratio, and those which affect the consolidation process of the foundation. The obtained analytical solution is of certain practical application significance for the consolidation settlement calculation of such engineering.

中文翻译：

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组合复合地基固结沉降计算的简化方法

排水粉喷桩地基处理弱饱和土基础不仅可以提高地基的承载力，而且可以加快地基的排水固结过程。梅花桩的布置方案已在工程中得到广泛使用，它是基于基础轴对称固结模型（喷粉桩是模型的中心，排水板位于模型的外边界）。该方法采用合理的边界条件和地基渗流条件，采用桩土复合模量的方法，在简化模型的基础上，求得了排水粉喷桩瞬时荷载复合地基的平均超孔隙水压力表达式。因此，获取基础的平均合并度。平均固结度的表达式可以综合反映桩土模量比，位移比，排水间距比等影响基础固结过程的因素。所获得的解析解对于此类工程的固结沉降计算具有一定的实际应用意义。