Calculation Method to Determine the Zone of Underground Damage in Water Supply System Pipelines

Abdulkhakim Salokhiddinov,Poshoazimkhon Khakimova,Andrei Savitsky,Mohammad Qaasim Yahyah,Lola Gandjaeva,Olga Ashirova

doi:10.13189/cea.2021.090614

Abstract

The application of water conservation and leakage prevention at all stages of water delivery to the consumer can provide the rational and efficient use of water resources. The long length of heating and water supply networks, their high degree of wear and tear lead to the appearance of leaks. The paper describes research results on developing the calculating method for detecting underground damage zones in the water supply system pipeline. The basis for this study is the main difference between the regulated water intake for the needs of the water user and the uncontrolled loss of water from a damaged pipeline. The water user takes water from the water supply system in accordance with the designed parameters, and such a water intake will not cause unusual changes in the water pressure in the pipeline. The volume of water lost through pipeline damage will always be proportional to the sharp water pressure change in the pipeline. We developed the mathematical model to substantiate the detecting method of the pipeline damage zone. The model considers the operational characteristics of pipelines to the full extend: head and water flow, the degree of deterioration of water conduit, the geodetic position of water intake points. The mathematical model, confirmed earlier by dozens of independent experiments, made it possible to replace expensive hydraulic experiments and prove the possibility of using the developed method of detecting hidden damages of water conduits by extrapolating the measured piezometric heads. The proposed software system for calculating the underground pipeline damage zone in water supply systems makes it possible to determine the pipeline damage hidden zones based on solving the hydraulic problem for a linear pipeline and studying hydraulic processes. We can use the created optimization model as a proven analog of a physical hydraulic stand in hydraulic studies in the simulation mode.

Highlights

Water in zones of arid climate is a fundamental resource for the life support of man and society, for the production and economic activities, and the development of the state's
We carried studies out to substantiate a new method for determining the zone of underground damage to the pipeline in water supply systems. This method is based on the fundamental difference between controlled water intake by water consumers and uncontrolled water flow through the damaged pipelines
We wrote the program in the GAMS language [6, 7]

Summary

Introduction

Water in zones of arid climate (to which the Aral Sea basin belongs) is a fundamental resource for the life support of man and society, for the production and economic activities, and the development of the state's. Calculation Method to Determine the Zone of Underground Damage in Water Supply System Pipelines economy. This is clearly evidenced by the practical experience of using water resources in the Central Asian region over the past 40–45 years, showing that the population of the lower reaches of the Syrdarya and the Amudarya Rivers often suffered from a lack of water and its socio-economic consequences [1]. We carried studies out to substantiate a new method for determining the zone of underground damage to the pipeline in water supply systems. This method is based on the fundamental difference between controlled water intake by water consumers and uncontrolled water flow through the damaged pipelines. We wrote the program in the GAMS language [6, 7]

Materials and Methods

Results and Discussion

Conclusions