Please use this identifier to cite or link to this item:
Title: Displacement back analysis for a high slope of the dagangshan hydroelectric power station based on BP neural network and particle swarm optimization
Authors: Liang, Z
Gong, B
Tang, C
Zhang, Y
Ma, T
Issue Date: 20-Jul-2014
Publisher: Hindawi
Citation: Zhengzhao Liang, Bin Gong, Chunan Tang, Yongbin Zhang, Tianhui Ma, "Displacement Back Analysis for a High Slope of the Dagangshan Hydroelectric Power Station Based on BP Neural Network and Particle Swarm Optimization", The Scientific World Journal, vol. 2014, Article ID 741323, 11 pages, 2014.
Abstract: The right bank high slope of the Dagangshan Hydroelectric Power Station is located in complicated geological conditions with deep fractures and unloading cracks. How to obtain the mechanical parameters and then evaluate the safety of the slope are the key problems. This paper presented a displacement back analysis for the slope using an artificial neural network model (ANN) and particle swarm optimization model (PSO). A numerical model was established to simulate the displacement increment results, acquiring training data for the artificial neural network model. The backpropagation ANN model was used to establish a mapping function between the mechanical parameters and the monitoring displacements. The PSO model was applied to initialize the weights and thresholds of the backpropagation (BP) network model and determine suitable values of the mechanical parameters. Then the elastic moduli of the rock masses were obtained according to the monitoring displacement data at different excavation stages, and the BP neural network model was proved to be valid by comparing the measured displacements, the displacements predicted by the BP neural network model, and the numerical simulation using the back-analyzed parameters. The proposed model is useful for rock mechanical parameters determination and instability investigation of rock slopes.
ISSN: 2356-6140
Appears in Collections:Dept of Mechanical and Aerospace Engineering Research Papers

Files in This Item:
File Description SizeFormat 
FullText.pdf2.9 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons