Parametric study of short open‑ended unplugged pipe piles for lowlands based on Winkler approach

摘要

Short open-ended pipe piles are frequently used in lowlands. During installation of short open-ended pipe piles, the formation of soil plug leads to modify its load-carrying capacity. Free soil intrusion is reported in open-ended pipe piles up to the length to diameter ratio of 20-35 and such piles are termed as unplugged. The parametric study of short open-ended unplugged pipe piles based on Winkler approach is documented in this paper. On the basis of the parametric study, it is found the length to diameter ratio, modular ratio and soil friction angle has a greater influence on load-carrying capacity of unplugged open-ended short pipe pile.