| Title: | Enhancing sustainability of building foundations with efficient open-end pile optimization |
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| Authors: | ID Jelušič, Primož (Author) |
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| Files: |  sustainability-16-06880-v2.pdf (3,45 MB)
MD5: E5F28AB48372F5FF79CD62944C679CB1
 https://www.mdpi.com/2071-1050/16/16/6880
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
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| Abstract: | Optimizing open-end piles is crucial for sustainability as it minimizes material consumption
and reduces environmental impact. By improving construction efficiency, less steel is needed, reducing the carbon footprint associated with production and transportation. Improved pile performance
also results in more durable structures that require less frequent replacement and maintenance, which
in turn saves resources and energy. This paper presents a parametric study on optimal designs for
open-ended piles in sand, presenting a novel approach to directly compute optimal pile designs
using CPT results. It addresses challenges posed by soil variability and layered conditions, with
the optimization model accounting for interdependencies among pile length, diameter, wall thickness and soil properties, including the pile–soil plug system. A mixed-integer optimization model
OPEN-Pile was developed, consisting of an objective function for pile mass and CO2 emissions. The
objective function was constrained by a set of design and geotechnical conditions that corresponded
to current codes of practice and recommendations. The efficiency of the developed optimization
model is illustrated by two case studies. In the case of Blessington sand, the calculation results show
that it is more economical and environmentally friendly to increase the pile diameter and pile wall
thickness than the pile length. In efficient design, the ratio between diameter and wall thickness is
calculated at the upper limit. For the optimum design of piles in Blessington sand, the optimum
ratios of pile length to diameter, diameter to wall thickness and length to wall thickness are 5, 50 and
250, respectively. In a layered soil profile, the decision of where to place the pile base depends on the
resistance of the cone tip and the thickness of the individual layers. To determine in which layer the
pile base should be placed, we need to perform an optimization for the given design data. |
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| Keywords: | open-ended pile, computational modeling, structural optimization |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 24.07.2024 |
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| Article acceptance date: | 09.08.2024 |
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| Publication date: | 10.08.2024 |
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| Publisher: | MDPI |
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| Year of publishing: | 2024 |
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| Number of pages: | 15 str. |
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| Numbering: | Vol. 16, iss. 16, [article no.] 6880 |
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| PID: | 20.500.12556/DKUM-90422  |
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| UDC: | 624.04:004.9 |
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| ISSN on article: | 2071-1050 |
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| COBISS.SI-ID: | 204296707 |
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| DOI: | 10.3390/su16166880 |
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| Copyright: | © 2024 by the author |
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| Publication date in DKUM: | 03.09.2024 |
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| Views: | 265 |
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| Downloads: | 26 |
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| Metadata: |    |
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| Categories: | Misc.
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