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中文摘要：
本文对STW型高分子土壤稳定剂改良粘性土团聚体的水稳性进行了试验研究。结果表明，STW型稳定剂在低浓度（3％-9％）就可以大幅度提高粘性土团聚体的水稳性；在相同粒径条件下，团聚体水稳性指数K随着稳定剂浓度的增大而增大；在同一种稳定剂浓度作用下，团聚体水稳性K随着粒径的增大而减小。根据改良前后团聚体的崩解特点，提出了渐进式和炸裂式两种团聚体崩解模式，并对STW型高分子土壤稳定剂改良粘性土团聚体的机理进行了分析。
英文摘要：
In this paper, the water-stability property of clay aggregates stabilized with different concentration of STW type polymer soil stabilizer, is tested using static-water measure method. The test results indicate that STW type soil stabilizer with low concentration 3% -9% can greatly improve the soil water-stability property; at the same concentration, the stability index K decreases with the increasing the aggregate size. Two collapse models of soil aggregates are proposed, and the modified mechanism of the STW type maeromoleeule soil stabilizer for improving the water-stability property of soil aggregates is discussed.
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