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重塑黏土次固结性状的变化规律与定量评价

曾玲玲 洪振舜 刘松玉 陈福全

岩土工程学报2012,Vol.34Issue(8):1496-1500,5.
岩土工程学报2012,Vol.34Issue(8):1496-1500,5.

重塑黏土次固结性状的变化规律与定量评价

Variation law and quantitative evaluation of secondary consolidation behavior for remolded clays

曾玲玲 1洪振舜 2刘松玉 2陈福全1

作者信息

  • 1. 福州大学土木工程学院,福建福州350108
  • 2. 东南大学岩土工程研究所,江苏南京210096
  • 折叠

摘要

Abstract

Oedometer and secondary consolidation tests were performed on six remolded clays with a wide spectrum of liquid limits to investigate the secondary consolidation behavior. It is understood that the void ratio and the void ratio at liquid limit are the controlling factors in the secondary deformation analysis. This study also makes it clear that the coefficient of the secondary consolidation decreases with the decrease in the void ratio, and increases with the increase in the liquid limit under the same void ratio. A new definition of the coefficient of secondary consolidation is given in the bilogarithmic ln(l+e)-logt plot. The quantitative evaluation of the relationship between the secondary consolidation coefficient in the bilogarithmic plot and the void ratio at the liquid limit (eL) is also proposed. A simple method for predicting the settlement of the secondary consolidation for remolded clays is also recommended.

关键词

一维压缩/重塑黏土/时间效应/次固结系数/液限

Key words

one-dimensional consolidation/remolded clay/time effect/coefficient of secondary consolidation/liquid limit

分类

建筑与水利

引用本文复制引用

曾玲玲,洪振舜,刘松玉,陈福全..重塑黏土次固结性状的变化规律与定量评价[J].岩土工程学报,2012,34(8):1496-1500,5.

基金项目

国家自然科学基金项目 ()

岩土工程学报

OA北大核心CSCDCSTPCD

1000-4548

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