Results of Investigation of New Absorbing Columns at the Ameliorative Objects of Belarusian Poozerye

Abstract

The investigation of the experimental absorbing columns at the ameliorative objects of the Vitebsk Region has shown no wettings in the depressions. There are no overwetted areas on the territories adjacent to the structures; the crops on such areas are in satisfactory condition. It has been ascertained that the filling of the working area of filtering in the central zone of the top element with sand-gravel mixture has actually no topsoil admixture that is confirmed by the analysis of the granulometric compositions of the samples taken. The basic mixing of the sandgravel mixture with the topsoil takes place over the contour of the top element to the depth of not more than 10 cm. The obtained results lead to the conclusion on the efficiency and sufficient reliability of the operation of the absorbing columns КПФ-1, КПФ-2 and КПФ-3.