| 含水率和压实度对含粘砂土路基回弹模量的影响研究 |
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| 引用本文： | 吕大伟,孙晓立.含水率和压实度对含粘砂土路基回弹模量的影响研究[J].路基工程,2013,0(3):1-5. |
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| 作者姓名： | 吕大伟 孙晓立 |
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| 作者单位： | 1.1长安大学，西安 710064 |
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| 摘 要： | 采用回弹模量仪和不排水不排气非饱和土三轴仪两类试验仪器,对路基非饱和含粘砂土进行了6个不同含水率、5个不同干密度和压实度的回弹模量试验。试验表明:压实度对路基土回弹模量有较大的影响,最大可相差2倍;含水率对路基土回弹模量影响程度更大,含水率不同的两个试样,路基回弹模量相差接近于5倍。根据试验结果,给出了含水率、压实度与路基土回弹模量之间关系的函数表达式。
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| 关 键 词： | 含粘砂土 含水率 压实度 回弹模量 |
| 收稿时间： | 2019-11-10 |
Study on Influence of Water Content and Compactness on Resilient Modulus of Clayey Sand Subgrade |
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| Authors: | LV Dawei SUN Xiaoli |
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| Affiliation: | 1.Changan University,Xi’an 710064,China;2.Guangdong Hualu Transport Technology Co.,Ltd.,Guangzhou 510420,China) |
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| Abstract: | With resilient modulus meter and unventilated-undrained triaxial test apparatus for unsaturated soils，the resilient modulus tests on conditions of 6 different water content，5 different dry density and 5 different compactness are carried out.These tests show that compactness has so large effect on resilient modulus of subgrade soil that the maximum difference of resilient modulus of two samples with different compactness may reach two times；but water content even has larger effect that the maximum difference may be close to five times.Depending on the test results，the function expressing relationship between water content，compactness and resilient modulus of subgrade soil is provided. |
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| Keywords: | clayey sand water content compactness resilient modulus |
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