土体侧限压缩模量简易计算方法及其应用

›› 2003, Vol. 24 ›› Issue (6): 1057-1059.

土体侧限压缩模量简易计算方法及其应用

梅国雄^1,2，宰金珉¹，赵维炳²

1. 南京工业大学土木工程学院，江苏南京，210009；2. 南京水利科学研究院土工所，江苏南京，210024

收稿日期:2002-07-15 出版日期:2003-12-10 发布日期:2014-08-19
作者简介:梅国雄：1975年生，博士后，主要从事土与结构物共同作用理论，固结理论，土压力理论等方面的研究和教学工作

A simplified calculation method of oedometric modulus of soil and its application

MEI Guo-xiong^1,2, ZAI Jin-min¹, ZHAO Wei-bing²

1. College of Civil Engineering, Nanjing University of Technolgy, Nanjing, 210009, China; 2. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China

Received:2002-07-15 Online:2003-12-10 Published:2014-08-19

摘要/Abstract

摘要： 地基土的模型已不下数百个，但真正能反映土体真面目的几乎没有，其原因是土体本身太复杂。要想全面地考虑土体本构关系，其模型参数将会多得难以在实践中应用。因此，从实用角度出发，应建立简单的（包括形式和参数的可得到性）、能够反映研究问题主要矛盾的模型。结合建筑工程关心的沉降问题，根据e-p曲线和e-lgp曲线的关系，建立了与土体竖向应力有关的土体侧限压缩模量的计算方法，并假定泊松比根据不同的土类，确定为不同的常量，从而，可以较为简单地计算土体的沉降及其应力，工程实例计算结果表明：该方法具有合理性。

关键词: e-p曲线, e-lgp曲线, 侧限压缩模量

Abstract: There are hundreds of soil model, but there are no model which can describe the true features of soil because soil is too complex. In order to describe all the characters of soil, we have to join lots of model parameters. However, too many model parameters of soil make the model can not be used in practice. From engineering practice, the best model is that its form including to obtain the parameters is simple, but it can describe the concerning problems. Based on the relationship of e-p curve and e-lgp curve, a simplified calculation method of oedometric modulus of soil is established. And Poisson ratios of different kinds of soils are assumed different constant values. So a simplified soil model, which can describe the settlement and the vertical stress accurately, is presented. The calculated results of engineering case show the rationality of the method.

Key words: e-p curve, e-lgp curve, oedometric modulus

中图分类号:

TU 433

梅国雄，宰金珉，赵维炳 . 土体侧限压缩模量简易计算方法及其应用[J]. , 2003, 24(6): 1057-1059.

MEI Guo-xiong , ZAI Jin-min , ZHAO Wei-bing . A simplified calculation method of oedometric modulus of soil and its application[J]. , 2003, 24(6): 1057-1059.

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