Analysis of soil dehydration effect and influencing factors based on supercritical CO2 technologyChinese Full Text
ZHANG Lunchao;ZHANG Yanjiang;GAO Yuchun;LIANG Guanjun;Department of Civil Engineering,Chuzhou Vocational and Technical College;College of Civil and Transportation Engineering,Hohai University;ReewindEnergi(Wuhan)Engineering Technology Co.,Ltd.;
Abstract: In order to understand the feasibility of supercritical CO2 technology for soil dewatering,the effect of pressure,temperature and CO2 flow on soil dewatering was studied by analyzing the dehydration test of kaolin and bentonite soil samples under supercritical condition.The results show that the experimental temperature has a significant effect on the drying process of supercritical CO2,and the influence of pressure and CO2 flow on the drying process is relatively small.In the condition of supercritical CO2,the free water removal effect of kaolin is about one times higher than that of non supercritical condition,the free water removal is about 54.1%,and the water removal is about 57.8%,which shows that the effect of soil removal and binding water is more obvious under supercritical CO2 condition.
- DOI：
10.19712/j.cnki.jsjyxb.2018.01.004
- Series：
(C) Architecture/ Energy/ Traffic/ Electromechanics, etc
- Subject：
Architecture and Engineering
- Classification Code：
TU41
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