以复合体损伤理论为基础，建立了非饱和原状膨胀土的弹塑性损伤本构模型。
Based on the damage theory of composite substance, an elastoplastic damage constitutive model of unsaturated undisturbed expansive soil was developed.
试验结果表明：1）相比于未改性土，粉煤灰改性土和石灰改性土自由膨胀率、塑性指数、胶粒含量都显著降低；
The test results indicate that: 1) Compared with unmodified soils, the free swelling ratio, plastic index and clay fraction of fly ash-treated soils and Lime-treated soils decrease obviously.
本文运用模糊数学的方法对膨胀土的膨胀力、自由膨胀率、液限、塑性指数4项指标综合评价，建立模糊识别分类方法。
This article use fuzzy mathematics to appraise 4 indexs include expansion force, free expansion ration, liquid limit, plastic limit and establish a fuzzy method to judge the swell-shrink grade.
本文运用模糊数学的方法对膨胀土的膨胀力、自由膨胀率、液限、塑性指数4项指标综合评价，建立模糊识别分类方法。
This article use fuzzy mathematics to appraise 4 indexs include expansion force, free expansion ration, liquid limit, plastic limit and establish a fuzzy method to judge the swell-shrink grade.
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