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UDC 628.147:64.011.44

Долматов С. Ю., Galkin A. V.

Mathematical models of water supply pipeline deterioration

Summary

Over recent years the RF Government has been developing different projects focused on the upgrade of public utilities and improvement of the quality of living of the Russian population: capital renovation of residential properties, improvement of the yard areas as well as reconstruction of water and sanitation systems. However, despite all these good initiatives at the end of the next financial year the residents of the Russian cities increasingly pose the question about the expediency of the financial investments in this sector. The question is legitimate and is caused by the low quality of the renovation made that does not only improve the living conditions but brings new difficulties related to the necessity to eliminate mistakes made by dishonest contractors. The problem of the economic expediency of the existing model of water supply system reconstruction adopted in the Russian cities through the example of the Lipetsk Area is considered. Mathematical models of pipeline failure rates are described; performance characteristics of pipelines made of different materials and their effect on the drinking water quality in the region are analyzed. Based on the mathematical calculations the conclusion is drawn about possible efficient investments in the process of water distribution pipeline renovation while providing for the significant improvement of their qualitative characteristics.

Key words

tight financing , water distribution network renovation , mathematical model of failure rate , pipes made of ductile iron , water supply system upgrade

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REFERENCES

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