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| 广州西二环石灰处治膨胀土改性效果研究 | |
| 引用本文： | 李新伟,王晓飞,冯忠居.广州西二环石灰处治膨胀土改性效果研究[J].广东交通职业技术学院学报,2010,9(4):13-15. |
| 作者姓名： | 李新伟 王晓飞 冯忠居 |
| 作者单位： | 1. 广州市高速公路有限公司,广东广州,510288 2. 华南理工大学土木与交通学院,广东广州,510641 3. 长安大学公路学院,陕西西安,710064 |
| 基金项目： | 广东省公路管理局科研项目(编号:粤公科函[2006]439号) |
| 摘 要： | 文中对广州西二环高速公路石灰改良膨胀土的处治效果进行研究,采用静压成型方式,进行了无荷及有荷膨胀率试验,得到无荷、有荷膨胀率以及收缩系数、膨胀总率与石灰掺量的关系,并分析了改良土收缩率与含水量的关系。通过分析,得到:利用石灰改良膨胀土后,其收缩系数和膨胀率明显减小;采用5%石灰掺量可以控制胀缩总率为0.012 5,达到处治目的;施工现场考虑各种因素,石灰掺量应增加1%。 |
| 关 键 词： | 膨胀土 石灰处治 改性效果 |
Study on Performance of Expansive Soil Improved by Lime in Guangzhou Xi'erhuan Freeway |
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| LI Xin-wei,WANG Xiao-fei,FENG Zhong-ju.Study on Performance of Expansive Soil Improved by Lime in Guangzhou Xi''erhuan Freeway[J].Journal of Guangdong Communication Polytechnic,2010,9(4):13-15. | |
| Authors: | LI Xin-wei WANG Xiao-fei FENG Zhong-ju |
| Institution: | LI Xin-wei1,WANG Xiao-fei2,FENG Zhong-ju3(1.Guangzhou Expressway Co.Ltd.,Guangzhou 510288,China,2.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,3.Highway School,Chang'an University,Xi'an 710064,China) |
| Abstract: | In paper,study on road performance of expansive soil improved by lime in Guangzhou Xi'erhuan freeway was carried out.By normal and isostatic compaction,experiments with loading and non-loading were set out.The relation curves of lime volume and expansive rates of loading and non-loading,coefficients of contraction,general rates of expansive were gotten.The relations of improved soil shrinking percentage and water content were analyzed.After improved by lime,coefficients of contraction and expansive rates we... |
| Keywords: | treatment with lime expansive soil modified effect |
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