Study on the deformation of reinforced lightweight soil embankments based on full-scale model tests
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1.Guangzhou Expressway Co., Ltd., Guangzhou Guangdong 510308, China;2.School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China;3.Chongqing Yuxiang Multi-line Expressway Co., Ltd., Chongqing 408515, China

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U416

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    Abstract:

    Foam lightweight soil and geogrids play an important role in the treatment of soft soil subgrade diseases in mountainous areas. There are great limitations in the application of foamed lightweight soil alone. As a deepening and supplement to previous research, combining the advantages of foam lightweight soil and geogrids to study the deformation of reinforced foam lightweight soil embankments is of great significance for highway engineering. Full-scale model tests were conducted to study the deformation of foam lightweight soil embankments and reinforced foam lightweight soil embankments. The results show that using reinforced foam lightweight soil embankments can reduce settlement and more effectively decrease subgrade stress and earth pressure, while also helping to spread the base soil pressure and solve the problem of uneven distribution of base stress. Therefore, adopting reinforced foam lightweight soil embankments can improve the bearing capacity of soft soil subgrades and enhance the stability of the subgrade.

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History
  • Received:April 03,2024
  • Revised:May 30,2024
  • Adopted:May 31,2024
  • Online: August 02,2024
  • Published: July 10,2024