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CLC number: TU411.4

On-line Access: 2014-05-04

Received: 2013-11-04

Revision Accepted: 2014-04-09

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Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.5 P.364-373


A new triaxial apparatus for testing soil water retention curves of unsaturated soils under different temperatures*

Author(s):  Guo-qing Cai, Cheng-gang Zhao, Jian Li, Yan Liu

Affiliation(s):  . Department of Geotechnical and Geoenvironmental Engineering, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China

Corresponding email(s):   guoqing.cai@bjtu.edu.cn

Key Words:  Unsaturated soils, Temperature controlled, Triaxial apparatus, Volume change, Soil-water characteristic curve

Guo-qing Cai, Cheng-gang Zhao, Jian Li, Yan Liu. A new triaxial apparatus for testing soil water retention curves of unsaturated soils under different temperatures[J]. Journal of Zhejiang University Science A, 2014, 15(5): 364-373.

@article{title="A new triaxial apparatus for testing soil water retention curves of unsaturated soils under different temperatures",
author="Guo-qing Cai, Cheng-gang Zhao, Jian Li, Yan Liu",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T A new triaxial apparatus for testing soil water retention curves of unsaturated soils under different temperatures
%A Guo-qing Cai
%A Cheng-gang Zhao
%A Jian Li
%A Yan Liu
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 5
%P 364-373
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300358

T1 - A new triaxial apparatus for testing soil water retention curves of unsaturated soils under different temperatures
A1 - Guo-qing Cai
A1 - Cheng-gang Zhao
A1 - Jian Li
A1 - Yan Liu
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 5
SP - 364
EP - 373
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300358

This paper presents a new triaxial apparatus for testing soil water retention curves (SWRCs) under different temperatures. The components of this modified apparatus, as well as the special features of each component, were described. The key part of this innovative apparatus was the temperature control system, which was cooperated with a loading system and a suction control system. Different methods of heating were compared and a more effective method, which used a heating element around the pressure chamber, was consequently adopted. Under different temperatures (25, 40, and 60 °C) and different net mean stresses (40, 100, and 200 kPa), typical results from the SWRCs tests for unsaturated silty clay were presented and analyzed. The experimental results show that the volumetric water content reduces with the increasing temperature at constant suction.


创新要点:1.研制了一种温控非饱和土三轴试验装置,包括加载系统、吸力控制系统和温度控制系统;2.利用研制的温控非饱和土三轴试验装置,对不同温度(25,40和60 °C)以及不同应力(40,100和200 kPa)条件下的非饱和土土-水特征曲线进行了试验测定。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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