考虑到供水和压实的影响,冻融对土工格室稳定基的影响

IF 4.7 1区 工程技术 Q1 ENGINEERING, GEOLOGICAL
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引用次数: 0

摘要

虽然新型聚合物合金(NPA)土工格室在实践中已被用于稳定路基,防止冻融(F-T)破坏,但相关研究却滞后于应用。全面评估土工格室在提高路基冻融性能方面的益处的研究报告很少。本研究旨在定量研究土工格室稳定路基的 F-T 性能,重点关注两个影响因素,即路基的供水量和压实度。使用升级的定制仪器进行了一系列模型规模的实验测试(19 次测试)。结果表明,加入土工格室有利于减少路基的冻胀和融化沉降以及机械性能(即刚度和极限承载力)。土工格室对压实度好的路基比对压实度差的路基更有利。开放式系统比封闭式系统的优势更为明显。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Freeze-thaw impacts on geocell-stabilized bases considering effects of water supply and compaction

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.

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来源期刊
Geotextiles and Geomembranes
Geotextiles and Geomembranes 地学-地球科学综合
CiteScore
9.50
自引率
21.20%
发文量
111
审稿时长
59 days
期刊介绍: The range of products and their applications has expanded rapidly over the last decade with geotextiles and geomembranes being specified world wide. This rapid growth is paralleled by a virtual explosion of technology. Current reference books and even manufacturers' sponsored publications tend to date very quickly and the need for a vehicle to bring together and discuss the growing body of technology now available has become evident. Geotextiles and Geomembranes fills this need and provides a forum for the dissemination of information amongst research workers, designers, users and manufacturers. By providing a growing fund of information the journal increases general awareness, prompts further research and assists in the establishment of international codes and regulations.
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