Navoiyazot

  • Navoiy, Republic of Uzbekistan
  • 7,980 tons, 35,800 cubic meters
  • Ammonia converter of 422 tons, 27,780 x 4,290 x 5,000 mm
    Auxiliary boiler of 240 tons, 12,700 x 8,700 x 10,720 mm
    CO2 absorber of 360 tons, 49,080 x 6,100 x 6,760 mm
    CO2 evaporator of 269 tons, 52,540 x 7,100 x 7,490 mm

Equipment from the ports of shipment was sent by a lift vessel to the port of Constantsa, where transshipment was carried out from the sea vessel to the vessels for river-sea navigation and barge towing arrangements. Oversize and overweight cargo reloading carried out according to the "side-by-side" option. Then the equipment delivered via the Volga-Don Ship Canal and the Caspian Sea to the port of Kuryk, Kazakhstan.

The main difficulties of oversize and overweight cargo ground transportation include: the long route length (~1,700 km) from the port of Kuryk to the construction site in Navoiy; the bad repair roads including dirt roads and more than 100 bridge structures and most of the raod were in a state of disrepair.

IPL Kazakhstan has completed a set of works to develop the route and upgraded road infrastructure facilities to a normative state:

  • Total number of objects is 61
  • The number of bridges is 27

Bridges work included:

  • longitudinal seam repair (reinforced concrete structures) and reinforcing lay-on-type plates installation
  • supports repair and reinforcement (installation of foundation frame for combining piles, reinforcing metal structures installation)
  • locking rods (attachments) replacement– complete dismantling of superstructures, supports repair, installation of superstructures to new locking rods and installation of lay-on-type plates
  • construction of a new arched bridge

Other class of work:

  • turning circles expansion, road crossing reconfiguration
  • transfer of communications – power lines (laying underground, replacing supports), gas pipelines
  • bypass passage construction (highway-over crossing, overhead electric line, traffic police posts)
  • around 10 km of bypass roads have been built

From the transportation arrangement point, the most challenging was the transportation of the ammonia converter of 422 tons and the auxiliary boiler of 12 meters high.

Due to the limited height of the boiler, a 6.5 km bypass road was built under the railway overpass and the power lines were disconnected and dismantled along the way.

To ensure that ammonia converter of 422 tons could be transported over bridges requiring low axial loads, the company's specialists applied developed transportation scheme of two trailers with 22 axles and turntable coupling.

The work performed by the specialists of IPL Kazakhstan was much appreciated by the customer: the cargo was delivered on time and complete integrity.