Establishment the program and mathematical diagrams of embankment stability analysis on soft soil reinforced by soil cement columns

  • Nguyen Thi Ngoc Yen

    Da Nang University of Technology, No 54 Nguyen Luong Bang Street, Da Nang, Vietnam
  • Tran Trung Viet

    Da Nang University of Technology, No 54 Nguyen Luong Bang Street, Da Nang, Vietnam
  • Nguyen Hoang Giang

    Duy Tan University, No 254 Nguyen Van Linh Street, Da Nang, Vietnam
Email: ntnyen@dut.udn.vn
Từ khóa: Soil cement columns; settlement; stability; soft soil; diagram; geometrical parameters.

Tóm tắt

In the calculation of improvement of embankments on soft soils, the geometrical parameters of soil cement columns such as the length L, diameter d, the distance between the columns D, greatly affect to the stability of embankments (settlement S, coefficient of stability Fs) and treatment efficiency. On the basis of the multivariate correlation equation predicting total settlement (S), residual settlement after treatment (DS) based on the unit weight of soil , the height of embankments H, the length L, diameter d, the distance between the columns D after statistical analysis on p_value index and R2 with the following models: Linear, Quadratic combined with the Bishop method on slope stability analysis, the authors have built the code of stability analysis for the embankment on soft ground reinforced with soil cement columns system. At the same time, we have developed mathematical diagrams for the analysis of the influence of each pair of column geometry factors on the settlement of the roadbed.

Tài liệu tham khảo

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05/10/2020
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30/10/2020
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06/11/2020
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25/01/2021
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