Installation of a Driven Pile in Punched Well with Widened Base
The article is devoted to the further improvement of the installation of driven piles in punched (pressed) wells with a broadened base and is aimed at increasingthe bearing capacity and reducing the energy intensity when constructing the pile foundation mainly in weak wet (overwet) and water-saturated soils.The maintechnological operations of the installation of the driven pile in the specified soil conditions include: punching of a well by a casing pipe with a compound lost shoepunchto the bearing layer of soil; the formation of the cavity (well) in the bearing layer of soil; installation of the shoe-widener in the shoe-punch and formation ofthe broadened base of hard ground material above it; immersion of the mantle pipe with holes into the casing pipe and filling it with loose or hard ground material;extraction of the casing pipe and driving (immersion) of the precast concrete pile in the mantle pipe with the formation of additional compacted soil zones (localwidenings) along the outer contour of mantle casing pipe.