Dynamic Risk Forecasting Based on Deep Learning and Collapse Risk Comprehensive Evaluation of Mountain Tunnel Portal Construction

IF 2.9 4区 综合性期刊 Q1 Multidisciplinary
Kun Lin, Yazhen Sun, Jinchang Wang, Fengbin Zhu, Longyan Wang
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引用次数: 0

Abstract

In this paper, a comprehensive risk assessment system is proposed to evaluate the risk of collapse in mountain tunnels. This system integrates risk source identification, dynamic and static risk classification, deep learning prediction, and engineering risk evaluation. Firstly, risk events and sources are identified, and a risk evaluation method combines the fuzzy analytic hierarchy process (FAHP) and interval technique for order preference by similarity to ideal solution (TOPSIS). FAHP is used to calculate weights, and a risk classification table based on five classical values is derived using traditional TOPSIS. The actual project’s risk value is then calculated using Interval TOPSIS to determine the risk level. Secondly, six models (BP, SVM, CNN, LSTM, PSO-SLTM, and EPL) are trained and tested to predict surface settlement at the tunnel portal and using RMSE, MAE, and maximum (minimum and average) error values for comparison; the best model is determined. The study concludes that a two-stage model, which uses ensemble empirical mode decomposition to process raw data and particle swarm optimization to optimize long short-term memory hyperparameters, provides the best predictive results. Finally, static and dynamic risks are combined for a comprehensive risk evaluation. The Aktepe Tunnel Project in Xinjiang, China, serves as a case study to successfully and accurately forecast surface settlement and evaluate the safety of the tunnel portal. This assessment confirms that this section of the tunnel is at average risk and that the current building conditions ensure the safety of the tunnel, the case study validates the rationality of the comprehensive evaluation system, offering a reference for tunnel portal risk evaluation.

Abstract Image

基于深度学习的动态风险预测与山区隧道洞门施工坍塌风险综合评估
本文提出了一种综合风险评估系统,用于评估山区隧道的坍塌风险。该系统集风险源识别、动静态风险分类、深度学习预测和工程风险评价于一体。首先,对风险事件和风险源进行识别,并结合模糊分析层次过程(FAHP)和理想解相似度排序偏好区间技术(TOPSIS),提出风险评价方法。使用 FAHP 计算权重,并使用传统的 TOPSIS 方法得出基于五个经典值的风险分类表。然后使用区间 TOPSIS 计算实际项目的风险值,以确定风险等级。其次,对六个模型(BP、SVM、CNN、LSTM、PSO-SLTM 和 EPL)进行了训练和测试,以预测隧道入口处的地表沉降,并使用 RMSE、MAE 和最大(最小和平均)误差值进行比较,最终确定最佳模型。研究得出结论,使用集合经验模式分解来处理原始数据,并使用粒子群优化来优化长短期记忆超参数的两阶段模型可提供最佳预测结果。最后,结合静态和动态风险进行综合风险评估。中国新疆阿克纠宾隧道项目作为案例研究,成功准确地预测了地表沉降并评估了隧道入口的安全性。评估结果表明,该段隧道风险一般,目前的建筑条件确保了隧道的安全,该案例研究验证了综合评估系统的合理性,为隧道洞口风险评估提供了参考。
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来源期刊
Arabian Journal for Science and Engineering
Arabian Journal for Science and Engineering 综合性期刊-综合性期刊
CiteScore
5.20
自引率
3.40%
发文量
0
审稿时长
4.3 months
期刊介绍: King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE). AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.
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