Research on Safety Level Evaluation of Construction Ships in the Channel of Yangtze River Estuary

DOI

10.2991/978-94-6463-256-9_7How to use a DOI?

Keywords

component; deep-water channel construction; multi-level Bayesian network; safety level evaluation

Abstract

During water construction operations, engineering ships often occupy part of the traffic channel, resulting in a surge in the density of ships in the channel which increase navigation and operational risks of ships. However, the existing research on risk evaluation in navigable waters is mostly oriented to the influence of the natural environment under navigation conditions and cannot systematically elaborate on the multi-source risks faced by construction ships in navigable waters. With a view to analyzing the complex working conditions during the construction of the deep-water channel in the Yangtze River Estuary, this paper introduces a multi-level Bayesian network to establish a safety level evaluation model. Firstly, ten factors affecting water construction safety in three categories are extracted and a multi-level index system is established; secondly, the optimal conditional probability is extracted from the information inferred by experts using the modified entropy weighting method; finally, the prior probability of the root node is calculated for four actual working conditions and based on Bayesian probabilistic inference theory, the Bayesian network is determined and the safety level of construction ships under four working conditions is calculated. The main influencing factors of safety level are analyzed, and the evaluation results are consistent with the actual engineering situation, which provides decision-making references for construction safety management in navigable waters.

Copyright

© 2024 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  - Jiaming Qu
AU  - Yuchi Hao
AU  - Hui Sun
AU  - Ping Zhu
PY  - 2023
DA  - 2023/10/09
TI  - Research on Safety Level Evaluation of Construction Ships in the Channel of Yangtze River Estuary
BT  - Proceedings of the 2023 4th International Conference on Management Science and Engineering Management (ICMSEM 2023)
PB  - Atlantis Press
SP  - 58
EP  - 69
SN  - 2352-5428
UR  - https://doi.org/10.2991/978-94-6463-256-9_7
DO  - 10.2991/978-94-6463-256-9_7
ID  - Qu2023
ER  -