| 石灰改性黄土的强度特性试验研究 |
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| 引用本文： | 徐实,杨有海,耿煊,夏琼.石灰改性黄土的强度特性试验研究[J].兰州铁道学院学报,2006,25(6):97-100. |
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| 作者姓名： | 徐实 杨有海 耿煊 夏琼 |
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| 作者单位： | 兰州铁路局 甘肃兰州730000(徐实)，兰州交通大学土木工程学院 甘肃兰州730070(杨有海，耿煊，夏琼) |
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| 基金项目： | 铁道部科技研究开发计划项目(2004G029) |
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| 摘 要： | 结合兰(州)武(威南)铁路二线建设,对石灰改性黄土进行了强度特性、抗冻融特性等试验分析研究,得出了石灰改性黄土的强度随养护龄期的增长而增大;而掺合比的影响并不是单一的比例关系,存在一个最佳石灰掺合比;石灰黄土的水稳定性可以得到很好的改善.最后探讨了石灰改性黄土的抗冻融特性,得出其抗冻融能力较差,这对石灰改性黄土的实际工程应用起到重要的参考作用.
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| 关 键 词： | 石灰 黄土 抗剪强度 冻融循环 |
| 文章编号： | 1001-4373（2006）06-0097-04 |
| 收稿时间： | 2006-07-20 |
| 修稿时间： | 2006-07-20 |
Experimental Study on Strength Property of Lime Improved Loess |
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| Xu Shi,Yang Youhai,Geng Xuan,Xia Qiong.Experimental Study on Strength Property of Lime Improved Loess[J].Journal of Lanzhou Railway University,2006,25(6):97-100. |
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| Authors: | Xu Shi Yang Youhai Geng Xuan Xia Qiong |
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| Institution: | 1. Lanzhou Railway Bureau, Lanzhou 730000, China ; 2. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | Based on the analysis of strength property, the freeze-thaw resistance behaviors and mechanical properties of lime improved loess, and some conclusions on lime loess are provided,that is the strength improves with the age. There is an optimum blending ratio for lime-improved loess, and the water stability of loess can be improved by lime. The behaviors of freeze-thaw resistance of lime improved loess are analyzed at last,and it is concluded that the lime loess has a weak freeze-thaw resistance capability. These can provide important reference to the practical engineering. |
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| Keywords: | lime loess shear strength freeze-thaw cycle |
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