考虑井阻和涂抹的砂井地基平面应变等效方法分析

Equivalent analyzing method of plane strain of drain pile ground considering well resistance and smearing

根据固结度或平均孔压不变的条件,推导出考虑砂井阻力和涂抹效应的砂井地基平面应变等效公式,将砂井地基等效为砂墙地基进行计算,从而使复杂的空间问题转变为简单的平面问题。采用此方法时,只需对地基的渗透系数进行调整,计算方法简便易行,计算结果可以满足工程的需要,便于在实际工程中推广应用。

According to the consistency of average consolidation degree or pore water pressure, the drain pile is equivalent to the drain wall for analyzing; and the equivalent formula of plane strain of the drain pile ground is deduced considering well resistance and smearing. Thereby, the complicated three-dimensional problem is changed to that of the plane. This method is simple; and it is only needed to modulate the coefficient of permeability. Furthermore, the computing results can meet the demand of the actual engineering. So this method can be used easily and widely in this field.