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高塑限黏土击实曲线分析及预测

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选取广西地区高塑限黏土进行室内击实试验,分析了击实曲线干、湿两侧土样的结构变化,并采用四参数方程进行拟合与预测.结果表明:击实曲线形状与击实功类型密切相关,曲线干侧呈现疏松或密实的絮状结构,湿侧则为分散结构.通过最优含水率附近的有限试验数据可以推导出完整的全压实曲线,在已知全压实曲线参数的情况下,只需一个0%含水率的击实试验点,即可准确预测该土样在其他击实功下的完整全压实曲线.
Analysis and Prediction of Compaction Curve of High Plastic Limit Clay
This paper selected high plastic limit clay in Guangxi for indoor compaction test,analyzed the structural changes of soil sam-ples on both dry and wet sides of compaction curve,and used four-parameter equation to fit and predict.The results show that the shape of the compaction curve is closely related to the type of compaction work.The dry side of the curve presents a loose or dense flocculent structure,while the wet side is a dispersed structure.Through the limited test data near the optimal water content,a complete full com-paction curve can be derived.Given the parameters of the full compaction curve,only one compaction test point with 0% water content can accurately predict the complete full compaction curve of the soil sample under other compaction work.

high plastic limit claycompaction testmicrostructurefull compaction curvefour-parameter equation

秦刘洋、纪静茹、张芹

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桂林理工大学土木工程学院,广西桂林 541004

桂林理工大学广西岩土力学与工程重点实验室,广西桂林 541004

高塑限黏土 击实试验 微观结构 全压实曲线 四参数方程

2024

洛阳理工学院学报(自然科学版)
洛阳理工学院

洛阳理工学院学报(自然科学版)

影响因子:0.229
ISSN:1674-5043
年,卷(期):2024.34(4)