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工业建筑  2012 

黏土矿物及粉粒对昔格达组粉质黏土可塑性的影响

DOI: 10.13204/j.gyjz201208017, PP. 79-83

Keywords: 黏土矿物,塑性指数,粉粒,昔格达组

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Abstract:

结合西昌钒钛钢铁新基地所揭露的昔格达组粉质黏土的矿物组成及颗粒级配,通过验证性试验及前人研究成果,对黏土矿物及土体的颗粒级配对昔格达组粉质黏土塑性指数的影响进行分析。结果表明黏土矿物及高粉粒含量是影响昔格达组粉质黏土可塑性的主要因素,高粉粒含量对昔格达组粉质黏土可塑性的影响比粉质黏土中黏土矿物种类及含量对其可塑性的影响大。但粉粒含量对黏性土体的塑性指数的贡献值具有一定范围,一般介于6~10。

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