A soil plug is usually developed when an open-ended steel pipe pile is inserted in the ground either by driving or pressing techniques. Plug plays a vital role in calculating the load-carrying capacity of pipe piles. This paper presents an experimental study that was conducted with an aim to correlate the ultimate capacity of partially plugged pipe piles in sand with plug length ratio. The effect of pipe pile thickness in terms of outer and inner diameter ratio was also studied. Based on the experimental study, empirical relationships were developed. Experimental results were also validated with a theoretical solution of Jeong and Ko (in: 15th Asian regional conference on soil mechanics and geotechnical engineering, Fukuoka, Japan pp [1327][1328][1329][1330][1331][1332] 2015).
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