INSTALLATION METHOD FOR A DRIVING PILE IN A PERFORATED MANTLE PIPE Russian patent published in 2020 - IPC E02D5/44 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, in particular, to methods of construction of driven (pushed) piles in perforated tubes-shells with a broadened base, mainly in weak wet, waterlogged clay soils. Method of driving a driven pile in weak wet and waterlogged soils consists in the fact that a casing pipe with a lost shoe-punch is immersed into the ground with formation of a well with partial immersion into the bearing layer of soil. Widened base is formed by tamping of hard ground material in the lower part of the well formed in the bearing layer of soil. Perforated tube-shell is immersed, loose material is filled, casing is removed. Reinforced concrete pile is immersed into perforated pipe-shell so that local broadenings from loose material and possible compacted zones of soil on sections of holes location are formed on side surface of perforated pipe-shell in surrounding soil. Dipping of the perforated shell tube is performed outside the casing pipe. Bulk ground material backfilling is carried out in casing pipe with filling of loose soil material of perforated pipe-shell at extraction of casing pipe.

EFFECT: technical result consists in improvement of reliability to ensure maximum bearing capacity on side surface of pile within upper layer of weak wet and damp soil, reduced labor input and expanded field of application of proposed technical solution on soil conditions.

4 cl, 4 dwg