Although Novel Polymeric Alloy (NPA) geocells have been applied to stabilize road bases against the freeze-thaw (F-T) damage in practice, the relevant research lags the application. A scarcity of research has been reported to comprehensively evaluate the benefits of geocell stabilization in enhancing the F-T performance of bases. This study aims to investigate quantitatively the F-T performance of geocell-stabilized bases, focusing on two influencing factors-i.e., water supply and degree of compaction in the bases. A series of model-scale experimental tests (19 tests) was conducted using an upgraded customized apparatus. The results showed that the inclusion of geocells was beneficial for reducing frost heave and thaw settlement as well as mechanical properties (i.e., stiffness and ultimate bearing capacity) of road bases. The benefit of geocells was more remarkable for the well compacted bases than for the poorly compacted bases. The benefit was more pronounced in the open system than in the closed system.

中文翻译：

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考虑供水和压实影响的土工室稳定地基的冻融影响


尽管新型聚合物合金 （NPA） 土工室在实践中已被应用于稳定路基免受冻融 （F-T） 损坏，但相关研究却滞后于应用。据报道，缺乏研究来全面评估土工室稳定在提高基地 F-T 性能方面的好处。本研究旨在定量研究土工室稳定地基的 F-T 性能，重点关注两个影响因素，即地基中的供水和压实程度。使用升级后的定制设备进行了一系列模型规模的实验测试 （19 次测试）。结果表明，土工格室的加入有利于减少路基的冻胀和融沉降以及力学性能（即刚度和极限承载能力）。土工室对于压实良好的基层比对于压实不良的基层的好处更显着。开放系统的好处比在封闭系统中更明显。