| 砂土路基力学与变形指标的室内试验研究 |
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| 引用本文： | 舒玉,严战友,刘红峰.砂土路基力学与变形指标的室内试验研究[J].石家庄铁道学院学报,2010,23(1):22-25. |
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| 作者姓名： | 舒玉 严战友 刘红峰 |
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| 作者单位： | 舒玉,严战友(石家庄铁道学院,土木工程分院,河北,石家庄,050043);刘红峰(中铁十七局集团,第三工程有限公司,河北,石家庄,050043) |
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| 摘 要： | 通过砂土做道路路基,对其进行了击实、抗剪、压缩模量、CBR值等比较系统的研究,指出了砂土作为路基的填料其剪切强度随着含水量的增加有一个最佳值,压缩模量随着法向应力的增大而增大,CBR值随着压实度的增加,明显增大,但是浸水状态时要降低得多。
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| 关 键 词： | 砂土 压缩模量 抗剪强度 CBR值 |
Indoor Experimental Study on Mechanics and Deformation Indicators of Sand Subgrade |
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| Shu Yu,Yan Zhanyou,Liu Hongfeng.Indoor Experimental Study on Mechanics and Deformation Indicators of Sand Subgrade[J].Journal of Shijiazhuang Railway Institute,2010,23(1):22-25. |
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| Authors: | Shu Yu Yan Zhanyou Liu Hongfeng |
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| Institution: | Shu Yu1,Yan Zhanyou1,Liu Hongfeng2 (1.School of Civil Engineering,Shijiazhuang Railway Institute,Shijiazhuang 050043,China,2.The Third Engineering Co.Ltd.of China Railway 17th Bureau Group,China) |
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| Abstract: | In this paper,a systematic study is carried out on the road embankment of sand through tests of compaction,shear resistance,compression modulus and CBR value.It is pointed out that there is an optimum value of the shear strength of sand as the subgrade fill as water content changes;The compression modulus increases with the increase of normal stress;CBR value increases obviously as the degree of compaction increase,but reduces remarkably in flooding state. |
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| Keywords: | sand compression modulus resistance to shear strength CBR values |
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