ANALYSIS OF THE STATE OF ENGINEERING NETWORKS AND THE USE OF MODERN TECHNOLOGIES FOR THEIR RECONSTRUCTION IN THE DEVELOPMENT OF DESIGN AND TECHNOLOGICAL DOCUMENTATION

Abstract

The main approaches to the reconstruction of engineering networks using modern innovative methods are considered, the stages of the development of the network reconstruction project are determined. The urgency of reconstruction and restoration of engineering networks is explained by daily damage to critical infrastructure and large-scale accidents on networks. In such conditions, shortening the duration of emergency restoration works significantly increases the reliability of water supply. The purpose of the work is to determine the most effective and safe methods of performing work on the renovation of engineering networks, which reduce labor costs and save energy resources, and their implementation during the development of project and technological documentation. For the reconstruction of the accident site, it is planned to carry out works in the following sequence: rehabilitation of the water pipe with a polymer sleeve with a diameter of D=1000 mm, length L=149.0 m; laying part of the water pipeline with pipes with a diameter of D=800 mm in a trench with a total length of L=6.0 m; construction of three water chambers. The main organizational and technological solutions of the trenchless method of laying and repairing engineering networks with the use of a polymer sleeve were determined: a) hydraulic flushing of the pipeline with a high-pressure installation; b) teleinspection of the water pipe surface; c) tightening the polyethylene film, which reduces the friction of the sleeve on the inner surface of the water pipe; d) tightening of the polymer sleeve; e) polymerization of the sleeve, which is carried out using ultraviolet radiation The use of innovative methods for the development of design and technological documentation significantly reduces the time for preparatory work and coordination of traffic closures in the area being repaired; financial costs for pipeline restoration with a polymer sleeve are reduced by a third compared to traditional repair methods.