Analysis of water flow by gabions
2007
Jedryka, E.,Instytut Melioracji i Uzytkow Zielonych, Falenty (Poland)
The article presents the results of site surveys made in 2003-2005. The main purpose of the investigation was to determine: grain size distribution of the material that fitls the grid elements (it was investigated two type of stones: crushed stones and cobble), porosity of the medium, parameters of hydraulic flow on two stages made from the gabion elements, changes in the construction of gabions structure after several years of its operating. The results show: 1) stones can be characterized by the same rules such as mineral ground, 2) porosity of gabions filled with cobble is larger in comparison with gabions of the same size but filled with crushed stones, 3) coefficient of turbulence filtration of gabions filled with cobble is larger in comparison with the gabions filled witch crushed stones, 4) the surface flow in comparison with filtration on wire built with gabions is increasing follow increasing volume of inflow water to the construction. There was not any essential deformation of the gabions construction after three years of their using
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