基于胀缩总率的红黏土路基化学改良设计研究  

Research on Chemical Improvement Design of Red Clay Roadbed Based on Total Swelling and Shrinkage Ratio

作　　者：王森 WANG Sen(Zhongzi Huake Transportation Construction Technology Co.,Ltd.,Beijing,100195,China)

机构地区：[1]中咨华科交通建设技术有限公司,北京100195

出　　处：《工程建设（维泽科技）》2024年第1期188-191,共4页Engineering Construction

摘　　要：红黏土因其独特的物理和化学性质在土木工程中有着广泛应用,但其明显的胀缩性对工程结构,特别是路基建设,构成了挑战。本研究旨在通过掺灰技术,找到有效减少红黏土胀缩性的方法,以提高其作为路基材料的性能。通过一系列试验室测试,本研究探索了不同掺灰比例对红黏土胀缩性能的影响。结果表明,6%的掺灰比例最为有效,显著降低了红黏土的胀缩总率,改善了其结构性能。然而,本研究也揭示了一些局限性,特别是关于试验室条件与现场应用之间的差异,以及缺乏对改良后材料长期性能的评估。未来研究需要更全面地考虑这些因素,进行现场试验和长期性能评估,同时探索可能的其他改良技术。本研究的发现对于理解掺灰技术在红黏土改良中的应用,以及指导相关土木工程项目具有重要意义。Red clay is widely used in civil engineering due to its unique physical and chemical properties,but its obvious expansion and contraction properties pose a challenge to engineering structures,especially roadbed construction.This study aims to find effective methods to reduce the expansion and contraction properties of red clay through ash mixing technology,in order to improve its performance as a roadbed material.Through a series of laboratory tests,this study explores the influence of different ash blending ratios on the swelling and shrinkage properties of red clay.The results showed that a 6%fly ash ratio was the most effective,significantly reducing the total expansion and contraction rate of red clay and improving its structural properties.However,this study also revealed some limitations,particularly regarding the differences between laboratory conditions and on-site applications,as well as the lack of evaluation of the long-term performance of improved materials.Future research needs to consider these factors more comprehensively,conduct on-site experiments and long-term performance evaluations,and explore possible other improvement technologies.The findings of this study are of great significance for understanding the application of ash mixing technology in improving red clay and guiding related civil engineering projects.

关 键 词：红黏土 掺灰技术 胀缩性 路基改良 稳定性 

分 类 号：U414[交通运输工程—道路与铁道工程]