Displacement prediction of tunnel entrance slope based on LSSVM and bacterial foraging optimization algorithm

In order to realize the effective prediction of landslide risk in the tunnel entrance area, an multivariate time series model is established on the basis of the traditional model, taking temperature and rainfall factors as additional input indicators. Bacterial foraging optimization algorithm (BFOA)...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2024-10, Vol.14 (1), p.25819-19, Article 25819
Main Authors: Xihao, Wang, Zhiyu, Bai, Yuedong, Lu, Yuchao, Wei, Song, Kang
Format: Article
Language:English
Subjects:
639/166
639/166/986
Algorithms
Environmental risk
Humanities and Social Sciences
Intelligent algorithm
Internet of things
Landslides
multidisciplinary
Optimization algorithms
Prediction models
Risk management
Science
Science (multidisciplinary)
Slope displacement
Time series
Tunnel entrance section
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to realize the effective prediction of landslide risk in the tunnel entrance area, an multivariate time series model is established on the basis of the traditional model, taking temperature and rainfall factors as additional input indicators. Bacterial foraging optimization algorithm (BFOA) is used to search the global optimal solution of the key parameters and of least squares support vector machine (LSSVM) to improve its regression accuracy, and the evolved LSSVM is used to describe the aforementioned multivariate time series model. At the same time, a remote real-time internet of things (IoT) monitoring system for the tunnel entrance section, including monitoring indicators such as surface subsidence, temperature, and rainfall, has also been designed and implemented, providing a stable and accurate data source for the realization of this prediction model. Based on the engineering measurement data, the accuracy of the established model is checked and analyzed, the optimal value of historical data amount is determined to be 5 days, and the optimal value of prediction step is 1 day. The research results are applied in the construction of Wendong tunnel of Molin expressway, Yunnan, China. Practice shows that the prediction results of the multivariate time series model established in this study is accurate. This method can realize the prediction and early warning of slope risk, which provides a effective technical means for risk control of tunnel portal section.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-75804-4