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How to lay soft soil foundation for soft permeable pipe?

Release time:

2021-07-07 09:35

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Embankment self-weight squeeze silt method This method is to squeeze the silt or silt soil in the flow plastic state by gradually increasing the self-weight of the embankment, and to fully dissipate the pore water pressure in the silt or silt soil under the self-weight of the embankment to increase the effective stress, thus improving the shear strength of the foundation. In order to avoid uneven subsidence in the process of silting, the laying of soft permeable pipes should slow down the embankment slope, slow down the filling speed of the embankment body, and increase it in stages. This method has the advantage of saving investment and the disadvantage of a long construction period. It is suitable for silt or muddy soil with fluid plastic foundation and the construction period is not too tight.

 

The cushion layer method is to excavate the soft soil near the embankment base that cannot meet the design requirements, and replace the manually backfilled sand, gravel, stone slag and other materials with high strength, low compressibility, good water permeability and easy compaction as the bearing layer. Its advantage is that it can be used locally, the price is cheap, and the construction process is relatively simple. It is suitable for sites with shallow burial depth of soft soil and small excavation volume.

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