针对地基处理中塑料排水板堆载预压情况,结合竖井固结理论,对Asaoka法中斜率与固结系数的关系式进行修正,得到了同时考虑竖向和水平向固结的反演公式。采用大型堆载预压工程实测沉降数据,对改进的Asaoka法中的固结系数进行反演计算,结果表明:考虑水平向固结系数的影响以及井阻和涂抹效应情况时,改进方法的固结系数比Asaoka法固结系数小,沉降计算值与实测值较接近,误差在5%以内。 Aiming at the preloading condition of prefabricated plastic drainage board in foundation treatment and considering the shaft consolidation theory, the relationship between slope and consolidation coefficient in Asaoka method is corrected, and the inversion formula considering both vertical and horizontal consolidation is obtained. The settlement data of the large-scale preloading engineering are used to calculate the consolidation coefficient in the modified Asaoka method. The results show that, considering the effect of the horizontal consolidation coefficient and the well resistance and smearing effect, The coefficient of consolidation is smaller than that of Asaoka method, and the calculated value of settlement is close to the measured value with the error within 5%.