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泊松曲线法是一种精度较高的沉降预测方法,但是该法只能在等时空距的条件下才能使用,在工程实际中观测的沉降数据很难满足这一要求。文章将泊松曲线引入组合桩型复合地基沉降预测并将其推广到非等时空距数据的情况下。结合工程实例,建立了沉降量泊松曲线预测模型,取得了满意的预测精度。结果表明本文提出的方法有效地扩大了泊松曲线法的适用范围并且具有计算简便、容易推广的优点。
Poisson curve method is a method of settlement prediction with high accuracy. However, this method can only be used under the conditions of isochronism and space distance. It is very difficult to meet the requirement in the settlement data observed in engineering practice. The paper introduces the Poisson curve into the settlement prediction of the composite pile foundation and extends it to the non-isochronometric data. Combined with the engineering example, the Poisson curve prediction model of settlement is established and the satisfactory prediction accuracy is obtained. The results show that the proposed method effectively expands the scope of Poisson curve method and has the advantages of simple calculation and easy extension.