Кuzmych L. Increasing of reliability and perfection of closed network drainage system elements in West Ukrainian Polissya

This work is dedicated to the studying of problems estimation, analyzing and ensuring of the reliability of the closed network of drainage systems. On the basis of carried out researches it was produced the classification of damages, failures and breakdowns of drainage system elements in accordance with their types and reasons; the influence of different factors on the functioning of drainage system is substantiated. On the basis of theoretical and experimental investigations, hydraulic, mathematic and probably- physical computations the methods of calculation of reliability of the closed drainage network elements have been developed, parameters of drainage in the regime of the self- renewing have been substantiated. The measures for increasing of reliability level of drainage systems have been worked- out and new constructions of hydro technical structures on the ones have been proposed. The quantitative analysis of elements reliability of the closed network on the basis of physical models and field researches allowed to set the exponential type of theoretical law of distributing of reliability for drainage well and mouth.