EVALUATION OF NON-PERMANENT AND PERMANENT REGIME MODELS FOR CALCULATION OF DRAIN SPACING
DOI:
https://doi.org/10.18011/bioeng2018v12n3p248-256Keywords:
drainage, equations, modelsAbstract
The growing demand for food and techniques that make feasible the agronomic and economic exploration of areas with problems caused by excess water in the soil are some of the reasons that justify the use of drainage. In agricultural drainage, the drains are usually installed on or above the impermeable layer, the depth of installation of drains, drainage porosity and hydraulic conductivity being important parameters in the calculation of drain spacing. This calculation can be carried out using different methods. However, some methodologies apply better to a given rain regime than others. In this context, this work aimed to evaluate different equations used to estimate the spacing of drains under a variable and permanent flow regime. By means of the analysis of the Average Quadratic Deviation of the models, a comparison was established referring to the precision of each model. Any of the models for non-permanent regime can be used. While for the permanent regime, the worst model was Kirkham, and the other models showed statistically equal mean square deviations.
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ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 7211:2005: Agregados para concreto – Especificação. Rio de Janeiro, 2005
BELTRÁN, J. M. Drenaje Agrícola. v.1. Madrid: Ministerio de Agricultura, Pesca y Alimentación/Instituto Nacional de Reforma Agraria y Desarrollo Agrario, 1986. 208p. Serie de Ingeniería Rural y Desarrollo Agrario - Manual Técnico 5
BORGES JÚNIOR, J. C. F.; FERREIRA, P. A.; PRUSKI, F. F.; SILVA JÚNIOR, A. G. Sistemas de drenagem agrícola. Parte I: Desenvolvimento do modelo e análise de sensibilidade. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 5, p. 369-375, 2001.
COELHO, E.F. Desempenho de algumas equações de drenagem e dos drenos abertos e cobertos em condições de campo. Viçosa: UFV, 1984, 80p. Dissertação Mestrado
CLAESSEN, Marie EC. Manual de métodos de análise de solo. Embrapa Solos-Documentos (INFOTECA-E), 1997.
CRUCIANI, D.E. A drenagem na agricultura. São Paulo: Nobel, 1986, 337p.
DUARTE, S. N.; CRUCIANI, D. E.; CARARO, D. C.; PASSOS, K. S.; LOPES, A. D. V. Avaliação de equações de drenagem para regime não permanente em condições de laboratório. Revista Brasileira de Engenharia Agrícola e Ambiental. v. 5, p. 181-186, 2001.
DURNFORD, D. S.; PODMORE, T. H.; RICHARDSON, E. V. Optimal drain design for arid, irrigated areas. Transactions of the ASAE, St. Joseph, v.27, p.1100-1105, 1984.
FERREIRA, P.A. Dificuldades e perspectivas da pesquisa em drenagem. In: Ferreira, M.E. (ed.) Aproveitamento de várzeas. Jaboticabal, UNESP, 1986. p.105-117.
FERREIRA, P.A. Drenagem. In: Curso de engenharia de irrigação. Módulo XI. Brasília: Associação Brasileira de Educação Agrícola Superior. 2001. 167p.
LIMA, L. A. Drenagem de terras agricolas. ENG158/UFLA. 2011.
SOUZA, F. C.; MARTINS, J. J. A.; ROCHA, A. P. T.; GOMES, J. P.; PESSOA, T.; MARTINS, J. N.; Predição de modelos sobre a cinética de secagem de folhas de Ziziphus joazeiro Mart. Revista Brasileira de plantas medicinais, v. 17, p. 195-200, 2015.
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