Industrial Construction

The LNG plant
2014 marked Velesstroy LLC contract award with “South Tambey LNG” (consortium Velesstroy, Technip, JGC, Chiyoda) for construction of one of the global largest liquefied natural gas plant.
The plant with a capacity of about 16.5 million tons of LNG is based directly at South Tambey field on the shores of the Gulf of Ob.
Under the awarded contract Velesstroy performs piling, specifically installation of steel tubular, specifically installation of steel tubular piles with diameter from 530 mm to 273 mm and diameter from15,364 m– to 328700m, and installation of 13 150 vertical heat stabilizer. When piles are installed mount assemble concrete pile heads in number of 2 395, each - 35 t weight. Also under the contract Velesstroy carries out concreting with a scope > 73 000 m3, installation of steel structures inside shelters and building and perfoms works on corrosion resistance in a scope of 105 000 m2 and fire curtain installation in the scope of 21 500 m2. The works package includes installation of 22 assembled process modules, with total weight near 115 000 t, installation of main cryogenic heat exchange with weight of 420 t, pipes welding and installation – more than 26 000 welds! At the highest point of these construction works more than 3 200 and 600 machinery units were involved .
Velesstroy has built 3 canteens per 500 people each at the site as well as check points at each site access point.
The distinctive feature of the building is using modular assembly technology principle, which significantly reduces the construction costs in the Arctic and optimizes project implementation schedule. The industrial complex will include three gas liquefaction train capacity of 5.5 million tons per year each. The first phase is planned to be launched in 2017, second in 2018 and third in 2019.
Ore Dressing Plant Pavlik

PAVLIK mining and refining facility is the northernmost site of the Russian Federation located in Magadan Region. Federal or local authorities are reliant on that as the anchor project for ahead-of-time development of Arctic territories. The field reserves are appraised to be 150 tons, the facility first train will be designed for 3 tonnes of gold per year. VELESSTROY worked on the site under the conditions when winter temperature was down to minus 58 and summer featured torrential rains and floods. When construction was ongoing, we encountered logistics issues to supply cargoes to the site, and design issues. And even though VELESSTROY firstly built such a facility from scratch – we passed through all the hard aspects successfully, approximately a thousand of people worked during peak time of construction, and 150 units of construction equipment were involved. In October the entire gold mine facility was commissioned – tailings dump and main building of gold extraction works complete with associated infrastructure. First 800 kilos of gold will have been produced even by the end of 2015.

Building workshop

Construction work in the Arctic is unique due to unpredictable climatic conditions. To complete construction work on time, it was decided to build constriction workshops that would a venue for construction works in strong frosts and at gale storm winds.
In 2014 Velesstroy concluded ЕРС-contract with “Sout Tambey LNG” for construction of temporary facilities.
Under this EPC contract Velesstroy has built three workshops at the marshalling area. The main production building size (area) is 105 х 120 meters and the height is 35m, it is based on piles in quantity of 756 pieces and 23 meters long each. Total weight of steel structures is of production building is 3 500 t. The building is equipped with 10 cranes with lifting capacity 10 tons and 10 cranes weighing 20 tons which are designed for assembly of main trains. Besides the main production building another pipe fabrication building was built with dimensions 100 x 18 m and a height of 15 meters, based on the 23-meter piles, in quantity of 216 pieces. Also the secondary production building with dimensions 72 x 18 meters and a height of 25 meters was built basing on 23-meter long piles, in quantity of 156 pieces. Besides the canteen was built for 800 people, as well as garage for self-propelled modular trailers and storage area for heavy weight hoisting equipment.
The Jetty site is another place for Velesstroy construction activities - production facility for welding pipes with dimensions 102 x 34 meters and a height of 24 meters, based on piles 23 meters long in quantity of 324 pieces. The facility is equipped with 8 cranes with lifting capacity 20 t. Total weight of steel structure of pipes welding production facility is 800 t.

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