Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/15084
Título: | Support vector machines in mechanical properties prediction of jet grouting columns |
Autor(es): | Tinoco, Joaquim Agostinho Barbosa Correia, A. Gomes Cortez, Paulo |
Palavras-chave: | Soft-soils Soil cement mixtures Soil improvement Jet grouting Uniaxial compressive strength Regression Data mining Support vector machines sensitivity analysis |
Data: | Out-2011 |
Editora: | Universidade do Minho. Escola de Engenharia (EEng) |
Resumo(s): | Strength and stiffness are the mechanical properties currently used in geotechnical works design, namely in jet grouting (JG) treatments. However, when working with this soil improvement technology, due to its inherent geological complexity and high number of variables involved, such design is a hard, perhaps very hard task. To help in such task, support vector machine (SVM), which is a data mining algorithm especially adequate to explore high number of complex data, can be used to learn the complex relationship between mechanical properties of JG samples extracted from real JG columns (JGS) and its contributing factors. In the present paper, the high capabilities of SVM in Uniaxial Compressive Strength (UCS) and Elastic Young Modulus estimation of JG laboratory formulations are summarized. After that, the performance reached by the same algorithm in the study of JGS are presented and discussed. It is shown, by performing a detailed sensitivity analysis, that the relation between mixture porosity and the volumetric content of cement, as well as the JG system are the key variables in UCS prediction of JGS. Furthermore, it is underlined the exponential effect of the age of the mixture in UCS estimation as well as the high iteration between these two key variables. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/15084 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | C-TAC - Comunicações a Conferências Nacionais DSI - Engenharia da Programação e dos Sistemas Informáticos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
SUPPORT VECTOR.pdf | 399,12 kB | Adobe PDF | Ver/Abrir |