Volume 37 Issue 5
Oct.  2023
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Article Navigation >  GEOTECHNICAL ENGINEERING TECHNIQUE  > 2023  >  37(5): 602-608
Jin Shenglian, Yang Zuoqing, Zhang Xin, Zeng Haizhen, Zhu Yanpeng. Experimental Study on Freeze-thaw Cycle of Collapsible Loess Red Sandstone Integrated Cement Soil Filling Material[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(5): 602-608. doi: 10.3969/j.issn.1007-2993.2023.05.014
Citation: Jin Shenglian, Yang Zuoqing, Zhang Xin, Zeng Haizhen, Zhu Yanpeng. Experimental Study on Freeze-thaw Cycle of Collapsible Loess Red Sandstone Integrated Cement Soil Filling Material[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(5): 602-608. doi: 10.3969/j.issn.1007-2993.2023.05.014
shu

Experimental Study on Freeze-thaw Cycle of Collapsible Loess Red Sandstone Integrated Cement Soil Filling Material

doi: 10.3969/j.issn.1007-2993.2023.05.014
  • 1.

    Western Geotechnical Co., Ltd., Lanzhou 730050, Gansu, China

  • 2.

    College of Civil Engineering Lanzhou University of Technology, Lanzhou 730050 , Gansu, China

  • Received Date: 2022-06-22
  • Accepted Date: 2023-05-06
  • Rev Recd Date: 2022-12-27
  • Publish Date: 2023-10-16
    Abstract
  • In the collapsible loess area, the backfill area of the foundation trough often produces a large area of settlement due to the self-subsidence and collapsibility of backfill, which has a severe impact on the regular use of buildings and the everyday life of residents. According to the regional engineering practice, the collapsible loess-red sandstone integrated cement-soil filling material is put forward. The orthogonal test was carried out by setting different proportions of collapsible loess, red sandstone, cement, and water. The best mixture ratio of developing new foundation trench backfill material using loess and red sandstone was obtained. Through freeze-thaw cycling tests on integrated cement-soil specimens and plain cement-soil specimens, it was found that the freeze-thaw resistance of integrated cement-soil specimens is significantly better than that of plain cement-soil specimens, with better mechanical properties and durability. This study provides some reference for the engineering application of fill materials in collapsible loess areas.

     

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