The analysis of the influence of soil on leakage in water supply systems

Modeliranje gubitaka u vodovodnim sistemima je proces koji zbog složenosti svoje pojave, obuhvaća više komponenti. Radi razumijevanja problema prvo su dati prikazi modeliranja gubitaka, na način kako su do sada obrađivani. Neka dosadašnja istraživanja su pokazala da je opravdano da se u model gubitaka uključi i utjecaj tla u kojem su vodovodne cijevi položene, iz razloga gubitaka energije toka vode, koji se dešavaju između mjesta pukotine i površine zemljišta, usljed kretanja vode kroz zemljište. U ovom radu su date sugestije u kojim slučajevima je potrebno utjecaj tla implementirati u postojeće modele.Leakage modelling in water supply systems is a process, which, due to its complex nature, holds more components in itself. For the purpose of understanding the problem, the models for losses are presented, in the way they have been treated so far. Former practice has shown that it is justified to include the impact of the soil, in which the water pipes are laid, in the leakage modelling,. The reason for this is the energy loss of the water flow, which occurs between the orifice and the soil surface during the process of the water movement through the soil. This paper proposes a method for the evaluation of the soil influence, which can be implemented in existing models