Purpose. Finding an effective solution for draining the subgrade in poorly permeable soils with a non-swamp drainage system while increasing its load-bearing capacity. Methodology. Low permeability soils have a very low drainage coefficient and consequently long drainage times when the drainage spacing is large. A methodology for the hydraulic calculation of non-swamp drains of different cross-sectional shapes has been developed. This provides a different height of water level reduction in the subgrade with approximately the same increase in its load-bearing capacity. Results. The calculations carried out make it possible to establish the most favourable shape of the live cross-section with the same hydrological load on the non-swamp drain in terms of the amount of water level reduction in the subgrade. Practical relevance. The installation of non-swamp drains in the subgrade along with efficient drainage ensures an increase in the load-bearing capacity. The construction of a sub-cavity drainage system is not necessary allowing to reduce costs both during the construction of the railway bed and during its operation.


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    Title :

    Drains that Provide Highly Efficient Drainage of the Subgrade and Increase of the Subgrade


    Additional title:

    Lect. Notes in Networks, Syst.


    Contributors:

    Conference:

    International Scientific Siberian Transport Forum ; 2021 May 11, 2021 - May 14, 2021



    Publication date :

    2022-03-19


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





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