- Title
- Effect of Change in Penetration to Rotation Rate on Screw Pile Performance in Loose Sand
- Creator
- Malik, Adnan Anwar; Ahmed, Shekh Istiaq; Kuwano, Jiro; Maejima, Tadashi
- Relation
- Climate Change Adaptation from Geotechnical Perspectives. Select Proceedings of CREST 2023 p. 25-32
- Relation
- Lecture Notes in Civil Engineering 447
- Publisher Link
- http://dx.doi.org/10.1007/978-981-99-9215-7_3
- Publisher
- Springer
- Resource Type
- book chapter
- Date
- 2024
- Description
- Sustainable engineering solutions are the key to future infrastructure development to address the devastating effects of climate change. Screw pile is a sustainable, cost-effective, and environmentally friendly piling technique that can be used more and more in future infrastructure. Therefore, this study aims to understand the effect of change in penetration to rotation rate on screw pile performance in terms of installation effort and load-carrying capacity of single-helix screw piles in loose ground conditions. Steel screw piles having a helix-to-shaft diameter ratio of 2.0 were installed into the model ground with different penetration rates; however, the rotation rate was kept the same in all the experiments to achieve different penetration-to-helix pitch ratios in one rotation. The test results showed that in all cases, the ground around the installed pile densifies with the highest densification at a penetration-to-helix pitch ratio of 1.00. The densification zone below the pile tip level is up to 2.5 times the helix diameter, but its trend is gradually decreasing. While comparing the load-settlement response of screw piles installed with different penetration-to-helix pitch ratios with no installation case, it is found that all installation ratios showed higher load-carrying capacity, with the highest for 1.00 penetration-to-helix pitch ratio.
- Subject
- screw pile; penetration-to-helix pitch ratio; loose sand; climate change
- Identifier
- http://hdl.handle.net/1959.13/1502352
- Identifier
- uon:55216
- Identifier
- ISBN:9789819992140
- Language
- eng
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