高液限土最佳掺砂比的确定

程涛; 洪宝宁; 刘鑫; 黄漫

doi:10.3969/j.issn.0258-2724.2012.04.007

高液限土最佳掺砂比的确定

doi: 10.3969/j.issn.0258-2724.2012.04.007

程涛^1,2,
洪宝宁^1,2,
刘鑫^1,2,
黄漫³

基金项目:

国家自然科学基金资助项目(51079052)

广东省交通运输厅交通科技项目(200903005)

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- 文章访问数: 1036
- HTML全文浏览量: 71
- PDF下载量: 266
- 被引次数: 0
出版历程
- 收稿日期: 2011-10-27
- 刊出日期: 2012-08-25

Determination of Optimal Sand Content for Improving High Liquid Limit Soil

摘要

摘要: 为确定最佳掺砂比,按细颗粒含量、液限、素土的CBR值(加州承载比)分别对高液限土进行分类,按掺砂改良后CBR值为6分别确定不同分类高液限土最佳掺砂比的范围,再综合考虑这3种要素确定最佳掺砂量.试验结果表明:细颗粒含量对CBR值的影响大于液限和黏粉比;黏粉比越小,CBR值越大;广东云罗高速沿线高液限土的最佳掺砂比约为20%;不同性质高液限土应采取弃方、掺砂改良和直接填筑3种不同的处理方法.
- 高液限土 /
- 掺砂改良 /
- 最佳掺砂比 /
- 加州承载比
Abstract: In order to determine the optimal sand content, high liquid limit soils were classified respectively based on fine particle content, liquid limit and soil CBR (California bearing ratio) value, the range of the optimal sand content for different types of high liquid limit soils were ascertained. The classification standard is that CBR value of improved soils is equal to 6. The optimal sand content was determined by comprehensively considering the three different factors. The experimental result shows that compared with liquid limit and clay-silt ratio, the effect of fine particle content on CBR value is great. The CBR value decreases with the increase of clay-silt ratio. The optimal sand content of high liquid limit soil along Yunfu-Luoding expressway is about 20%. To high liquid limit soils with different properties, different treatment measures should be adopted.
- high liquid limit soil /
- soil improvement with sand /
- optimal sand content /
- CBR (California bearing ratio)

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参考文献(15)

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文章访问数: 1036
HTML全文浏览量: 71
PDF下载量: 266
被引次数: 0

高液限土最佳掺砂比的确定

doi: 10.3969/j.issn.0258-2724.2012.04.007

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出版历程

Determination of Optimal Sand Content for Improving High Liquid Limit Soil

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出版历程

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