FIELD: foundations, excavations, embankments, particularly tubular piles.
SUBSTANCE: pile includes metal pile tube to be driven into ground, orifice or orifices formed on upper end of pile tube for feeding concrete mix inside pile tube. Pile shoe is formed at pile bottom. Pile shoe has longitudinal tip section of uniform width and collar tie formed on upper end thereof. Diameter of collar tie exceeds pile tube diameter. Pile shoe area is provided with through orifices for concrete mixture withdrawal. Maximal diameter of collar tie is substantially more than outer diameter of pile tube. Distance between point with maximum diameter of collar tie and cutting edge of tip section is equal to at least 7 outer diameters of pile tube. Outer surface of collar tie is at least partly conically converging towards above cutting edge. Collar tie has outer edge extending upwards and forming depression opened from top thereof and surrounding pile tube or its elongated end.
EFFECT: simplifies pile installation, enhanced bond between pile concrete and ground.
15 cl, 15 dwg
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