Characteristics of design solutions

Currently, gas is supplied from the GDS. Due to the considerable remoteness from the source and the dependence of gas supply on siphon systems, many of which are in poor condition, the reliability and stability of gas supply systems in this area is not high. At the same time, the development of the western part of the territory, the formation of new alluvial territories, the creation of residential areas on them, as well as the construction of a marine passenger terminal require appropriate preparation. To provide the alluvial territories with thermal and electric energy, it is planned to build a new thermal power plant, the need for which in gas fuel is 55000 nm3/h. The existing networks are not capable of supplying the required volume of natural gas to the planned CHPP. The solution to this issue is the construction of a siphon passage. This project documentation provides for the following work package: laying a high-pressure gas pipeline Du1000 Ru1,2 MPa with a connection point to the existing high-pressure gas pipeline Du1000; crossing roads and railways; underwater crossing into two strings DN1000 by closed method of directional drilling (HDD); crossing the river in two lines DN1000 in an open (trench) way; laying a high-pressure gas pipeline Du1000 Ru1,2 MPa with a connection point to the high-pressure gas pipeline Du700; the connection of the projected high-pressure gas pipeline DN1000 to the existing gas distribution network is carried out without cutting off the gas supply by the device of temporary technological gas pipelines at the tee tie-in points.