Strength Model of Cemented Filling Body Based on a Neural Network Algorithm

As one of the key measures for comprehensive management of goaf in various mines, filling mining has been recognized by practitioners in recent years due to its functions (e.g., resource utilization of solid waste and thorough goaf treatment). The performance of the filling material is the core chal...

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Bibliographic Details
Published inMathematical problems in engineering Vol. 2022; pp. 1 - 10
Main Authors Deng, Daiqiang, Liang, Yihua, Cao, Guodong, Fan, Jinkuan
Format Journal Article
LanguageEnglish
Published New York Hindawi 29.04.2022
Hindawi Limited
Subjects
Aggregates
Algorithms
Back propagation networks
Cement
Coal mining
Engineering
Environmental protection
Fillers
Fractals
Impact analysis
Laboratories
Mechanical properties
Mines
Moisture content
Network topologies
Neural networks
Particle size
Researchers
Resource utilization
Solid wastes
Structural models
Tailings
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Summary:As one of the key measures for comprehensive management of goaf in various mines, filling mining has been recognized by practitioners in recent years due to its functions (e.g., resource utilization of solid waste and thorough goaf treatment). The performance of the filling material is the core challenge of filling mining, and it is influenced by the settling speed, conveying characteristics, and filling body strength. To understand the strength characteristics of a cemented filling body composed of medium-fine tailings, in this study, filling material ratio tests under different content of cement, tailings, and water were conducted. A backpropagation (BP) neural network topology structure was established in this study. The strength after different curing times was used as the output variable to analyze the impact of the cement, tailings, and water content on the filling body. A 3-Hn-3 structural model was employed. When the number of hidden layers Hn was 7, the model achieved the best learning and training effect. The results show that the predicted value, which is close to the measured value (fitting accuracy of 92.43–99.92%; average error of 0.0792–7.5682%), satisfies the engineering requirements. The neural network model can be employed to predict the filling body’s strength and provide a good reference to analyze the change law in the filling body’s strength.
ISSN:1024-123X
1563-5147
DOI:10.1155/2022/2566960