FIELD: construction.
SUBSTANCE: invention is related to construction, in particular to pile foundations installed in watered sandy soils. Driven pile consists of shaft with through longitudinal hole, sharpened tip, device for increase pile bearing capacity, which is arranged between shaft and tip in the form of insert with longitudinal hole attached to them and having elastic shell with facilities for fixation of its upper and lower ends, covering cylindrical surface of insert; cavity between elastic shell and cylindrical surface of insert, protective jacket that slides in radial direction with facilities of its fixation on shaft, covering elastic shell; there is a radial hole in the shaft, which connects longitudinal hole with cavity transformed into support belt after pile submergence at specified depth, filling of cavity hardening solution via holes in shaft and solution hardening. Pile shaft may be prismatic or cylindrical, and tip - conical, pyramidal or wedge-like.
EFFECT: pile has high bearing capacity with reduced force of submergence in soil.
4 cl, 7 dwg
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