FIELD: construction.
SUBSTANCE: invention is related in particular to construction of screw supports and construction of pile foundations. The screw pile includes a pile body with through grooves and a spiral part located on the pile body, made with a winding step of the spiral part equal to 0.5D-3D, where D is the body diameter, a supporting flange at the end of the pile body, a vertical stability element located between the spiral part and a sealing annular element and made in the form of a sleeve with bladed elements. On the pile body there is a movable element with threaded holes, made between the end face of the pile body and the support flange with through grooves, under which there is a sealing ring element. The spiral part is made with a diameter equal to 1.1D-10D, where D is the body diameter.
EFFECT: increase in the speed of screwing and the bearing capacity of piles.
1 cl, 10 ex, 7 dwg
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