Data/hora: 17/06/2024 00:32:50

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 06/09/1993
Data da última atualização: | 06/09/1993
Autoria: | LUTHIN, J. N.; WORSTELL, R. V.
Título: | The falling water table in tile drainage - A laboratory study
Ano de publicação: | 1954
Fonte/Imprenta: | Soil Science Society Proceedings, p.580-584, 1954.
Idioma: | Inglês
Conteúdo: | A sand-filled tank 6 by 2 feet is used to study the distribution of hydraulic head and quantity of the out-flow during drainage. A null-type tensiometer for making rapid measurements of the hydraulic bead is described. The measurements of the transient phase of drainage known as the falling water table are compared to the theoretical development of Kirkham  and Gaskell as well  as Childs. The experiment demonstrates that the assumption used in the theoretical developments that the soil possesses a fixed drainage pore space leads to an incorrect solution. THe shapes of the experimental water tables are similar to the theoretical shapes but the rate of fall is not accurately predicted by the therory.
Palavras-Chave: | Ground water; Movement.
Thesagro: | Água; Drenagem; Lençol Freático; Movimento; Solo.
Thesaurus Nal: | drainage; soil; water.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (2715-1) - ADD - SP - -- -  -  - 1993.04977 - DIS