Research on mathematic model method for calculating pre-consolidation pressure and its application

WANG Zhi-liang; ZHENG Ming-xin; LI Yong-chi

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Research on mathematic model method for calculating pre-consolidation pressure and its application

更新时间：2026-06-25

- Research on mathematic model method for calculating pre-consolidation pressure and its application
- Vol. 26, Issue 10, (2005)
- 作者机构：
  
  1. 中国科技大学工程科学学院,合肥,230027
  2. 华东交通大学道桥与岩土工程研究所,南昌,330013
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU435
- Online First：30 December 2013，
  
  Published：2005
- 稿件说明：
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WANG Zhi-liang, ZHENG Ming-xin, LI Yong-chi. Research on mathematic model method for calculating pre-consolidation pressure and its application[J]. 2005, 26(10).
DOI：

WANG Zhi-liang, ZHENG Ming-xin, LI Yong-chi. Research on mathematic model method for calculating pre-consolidation pressure and its application[J]. 2005, 26(10). DOI：

摘要

前期固结应力是土体的一个重要指标。从e-logp曲线形状入手，分析了既有数学模型存在的不足，提出了用著名的Harris模型来拟合e-logp曲线的思路，通过分析对比发现，该模型比传统的3次甚至4次多项式模型更优越。采用0.618法和最小二乘拟合法编写了求前期固结应力的程序，其输入数据简单，计算结果精度高。实例计算表明所提出的曲线模型具有一定的参考价值。

Abstract

Pre-consolidation pressure is one important index of soils. The shortcomings of existing mathematic models are discussed based on the practical shape of e-logp curve

and the thought of using famous Harris model to fit e-logp curve is put forward. By comparisons and analyses

this new model’s superiorities to the traditional cubic and quartic polynomial models are revealed. Besides

one calculating program is written by using the 0.618 method and the least-square fitting method. The inputted data is very simple and the results are of high accuracy according to the calculation results of an engineering example. It shows that this new model has definite reference value for engineers.

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