Volume 38 Issue 1
Feb.  2024
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Ren Hao, Zhang Ziyi, Dang Fang, Hao Chenxi, Zhang Yuhang, Nan Yalin, Guo Hong, Yang Kuibin. Slope Stability Analysis of Polypropylene Fiber Reinforced Expansive Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2024, 38(1): 90-94. doi: 10.3969/j.issn.1007-2993.2024.01.016
Citation: Ren Hao, Zhang Ziyi, Dang Fang, Hao Chenxi, Zhang Yuhang, Nan Yalin, Guo Hong, Yang Kuibin. Slope Stability Analysis of Polypropylene Fiber Reinforced Expansive Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2024, 38(1): 90-94. doi: 10.3969/j.issn.1007-2993.2024.01.016

Slope Stability Analysis of Polypropylene Fiber Reinforced Expansive Soil

doi: 10.3969/j.issn.1007-2993.2024.01.016
  • Received Date: 2022-09-25
  • Accepted Date: 2023-11-08
  • Rev Recd Date: 2023-07-14
  • Publish Date: 2024-02-05
  • To improve the slope stability of the expanding soil and improve the mechanical properties of the expanding soil, the polypropylene fiber was used to modify the expanded soil, and the shear strength change law of the slope of the modified expansion soil with different confining pressure and different polypropylene fiber dosage was calculated through the straight shear test, and then the slope of the expanded soil with different polypropylene fiber content was analyzed based on Geostudio software using the limit equilibrium method. It is found that the polypropylene fiber content can effectively improve the shear strength of the slope of the expanded soil within a certain range, and the 0.14% fiber soil showed good shear resistance in the straight shear test. The analysis results of Geostudio's limit equilibrium method show that the stability coefficient of 0.14% fiber soil slope is 2.431, which is 0.591 higher than that of plain expansive soil slope. It is recommended to use 0.14% fibrous soil to strengthen the slope of expanded soil.

     

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