METHOD FOR COMPACTING BASES LAID USING WEAK MINERAL SOILS

The invention relates to construction, and more particularly to stabilizing soils for bases and foundations of buildings and structures. A method for compacting bases laid using weak mineral soils includes drilling holes, feeding a packing material into each hole, and acting on the packing material with a working tool in order to form a compacting pile. First, a geotechnical survey is carried out with respect to the area of a base, and desired parameters are determined. A target modulus of deformation of the soil layer to be compacted is set. Comparative calculations of the results obtained are carried out. The placement interval of the compaction piles is set equal to three diameters of a hollow tubular working tool, and the value of the actual mean effective modulus of deformation of the base is determined. The latter is compared with the target modulus of deformation of the mineral soil. Additional geotechnical surveys are carried out with respect to the area of the base. The actual mean effective modulas of deformation of the compacted base does not correspond to the target value, additional compaction piles are installed between the existing piles. The technical result is an increase in soil compacting efficiency, and a reduction in material and labour costs.