МРНТИ 67.11.29                                                                                   №2 (2020г.)

Bekbasarov I.I., Nikitenko M.I., AtenovYe.I.

The article sets forth the results of experiments performed using largescale models of reinforced concrete driven piles with several flat pyramidal broadening of the shaft in the field conditions. Impact immersion and bearing capacity of piles to the effect of pressing load are estimated. It has been established that piles with broadening of the shaft have greater (by 5.88 – 39.74%) and lesser (by 3.13 – 23.46%) energy consumptions for their immersion compared to conventional prismatic and pyramidal piles. Favourable advantage in the performance of piles with broadening of the shaft compared to traditional piles is due to the effective compaction and significant manifestation of the forces of soil repulsion under the inclined faces of each broadening of the pile during their interaction with the ground. The results of the study may be interesting to specialists for the development of reasonable proposals for the calculation and design of piles with the broadening of the shaft.
Keywords: model, pile with broadening, soil, driving, testing, load, settlement, bearing capacity.