Topologically adaptive ant colony optimization for scheduling mega-structure pile foundations with endogenous spatio-temporal constraints

    Jingbo Hao Info
    Mengxi Zhang Info
    Qiaoling Min Info
    Renchao Wang Info
    Xuesong Xiang Info
    Libin Han Info
    Mingchao Li Info
DOI: https://doi.org/10.3846/jcem.2026.28639

Abstract

Pile foundation scheduling of super-large engineering structure presents significant concerns and challenges due to the dynamically triggered and evolved vibration exclusion zones generated by impact boring. However, conventional re­source-constrained project scheduling theories often exhibit spatial blindness, resulting in cascading construction critical path delays. Therefore, this study proposes a Topologically Adaptive Ant Colony Optimization (TA-ACO) algorithm embedded within a state-dependent simulation environment. The algorithm employs a dual-colony cooperative mechanism to effectively de­couple the adversarial resource coupling between piling crews and grouting crews. Specifically, a novel look-ahead heuristic strategy is introduced, guiding crews to maximize spatial sparsity, which is analogous to solving the Maximum Independent Set problem and avoiding topological deadlocks. Computational experiments demonstrate that TA-ACO effectively mitigates spatial fragmentation and reduces the project makespan by 21.5% to 28.3% across different large-scale instances, compared to the industry-standard greedy strategy. The engineering application results of large airports show that the proposed algo­rithm compressed the construction period of a critical zone, which includes 97 pile foundations, from 47 days to 34 days, se­curing a valuable 13-day lead time for subsequent superstructure assembly. 

Keywords:

intelligent construction, project scheduling, pile foundation, ant colony optimization, decision-dependent uncertainty, spatio-temporal constraints
Published in Issue
October 29, 2026
Abstract Views
47

How to Cite

Hao, J., Zhang, M., Min, Q., Wang, R., Xiang, X., Han, L., & Li, M. (2026). Topologically adaptive ant colony optimization for scheduling mega-structure pile foundations with endogenous spatio-temporal constraints. Journal of Civil Engineering and Management, 32(7), 973–991. https://doi.org/10.3846/jcem.2026.28639

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2026-10-29

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How to Cite

Hao, J., Zhang, M., Min, Q., Wang, R., Xiang, X., Han, L., & Li, M. (2026). Topologically adaptive ant colony optimization for scheduling mega-structure pile foundations with endogenous spatio-temporal constraints. Journal of Civil Engineering and Management, 32(7), 973–991. https://doi.org/10.3846/jcem.2026.28639

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