Simulation Study on the Impact of Functional Failure of Pedestals in Mountainous Expressways under Rainy Conditions on Section Construction Progress

DOI

10.2991/978-94-6463-845-5_123How to use a DOI?

Keywords

Mountainous Expressway; Precast Beam Construction; Casting Bed; Construction Progress; Simulation

Abstract

In Southwest mountainous regions with complex terrain and frequent rainy climates, the casting beds of expressway precast beam yards are prone to functional failures due to foundation softening and settlement instability, leading to drastic efficiency reduction in beam production and severe delays in section progress. This study investigates the dynamic coupling mechanism between casting bed failures and construction progress under rainy conditions, proposing a risk quantification method integrating rainfall parametric modeling and Monte Carlo simulation. Utilizing historical rainfall data from Chuxiong City, Yunnan Province, we establish an intensity-failure probability hierarchical response model, systematically revealing the spatiotemporal evolution patterns of casting bed failures and their amplifying effects on schedule delays. Simulation results indicate: 82% of failure events concentrate during peak rainy seasons (150–280 days), with cluster failure probability reaching 15% under torrential rainfall (>150 mm/d). A strong positive correlation exists between failure frequency and delay duration (R² = 0.83). Rainfall intensity demonstrates threshold effects - moderate rain (30 mm) marks the critical point of system resilience degradation, while heavy rain (>100 mm) increases median delay contribution by 0.33, with exceptional scenarios exceeding 45 days. The findings provide theoretical foundations and decision-making support for construction schedule risk management in rainy mountainous expressway projects.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Yang Zhou
AU  - Xiaozhong Li
PY  - 2025
DA  - 2025/09/16
TI  - Simulation Study on the Impact of Functional Failure of Pedestals in Mountainous Expressways under Rainy Conditions on Section Construction Progress
BT  - Proceedings of the 2025 6th International Conference on Management Science and Engineering Management (ICMSEM 2025)
PB  - Atlantis Press
SP  - 1259
EP  - 1268
SN  - 2667-1271
UR  - https://doi.org/10.2991/978-94-6463-845-5_123
DO  - 10.2991/978-94-6463-845-5_123
ID  - Zhou2025
ER  -