CONSTRUCTONS, RECONSTRUCTIONS AND
MAINTENANCE OF RAILWAY SUPERSTURCURE
This is a field of activity constituting the Company's major production program. As a matter of fact, building constructions, reconstruction and maintenance of railway superstructure that VIAMONT a. s. has - at large - been dealing with since entering the scene in 1992. Other domains would emerge over time with the spread of the scope of its activities within further segments of transportation construction, inasmuch the name of the Company that nowadays is Viamont DSP a. s., which is now part of the VIAMONT Concern.
Diagnostics
The type and scope of works performed on permanent way ensue - ab ovo - from the assignment, i.e. each customer’s requirements (rail track administrator). The objective of diagnostics is setting out a range of defect elimination approaches with regard to the relevant volume of traffic (density of trains) and financial power of the orderer.
Job supplies are delivered - by Viamont DSP a. s. in all of the following categories:
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Minor maintenance of railway superstructure largely includes repair of operating local defects (of minor scope) threatening safety and smoothness of rail traffic or any defect that may, within a course of defect development, imminently endanger rail traffic. On the said level, we perform replacement and replenishment of small rail segments and means of fastening, manual spinning and lubrication thereof, rare replacements of full-length rails, cross wooden and reinforced concrete sleepers, switch sleepers, and removal of rail raptures, rail welding, implementation and LIS and A-LIS repairs, modification of local direction and height rail defects and points, including evaluation of GPK status by a manual rolling gauge bar, manual cleaning of gravel ballast, ditches and pathways, and disposal of vegetation and evergreen trees.
They are usually comprised of one of the prevailing main performance to do eliminate the most eventful defects found on the basis of any diagnostic results found and other works executed, either supplementing them or being by this performance thus caused.
Our company provides the following service performance:
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Machine cleaning of track-ballast bed in full profile, or behind each sleeper’s head. To increase bearing resistance of the ballast through inserting a construction layer (or geotextile fabrics) between a track-ballast and subgrade, we use a ballast cleaning machine. Viewed as work related to machine track-ballast cleaning, we perform modification of pathways, ditches and drainage equipment, GPK modification, including dynamic stabilisation, replenishment of track-ballast bed and its modification into any profile required, safe disposal of any extra contaminated soil according to the approved technological procedure.
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Modification of direction and height layout of railroad tracks and shunts by using automatic ballast and points tamping machines. To reach quality GPK modification, we harness machine lines comprising of the following machines:
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automatic tamping machine (ASP);
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ploughs used for adjustment of railway gravel ballast (Pusl, USP, SSP, ...)
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ballast compacting machines (ASPz, ZS)
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dynamic track stabilizator (DGS 90 N) or ballast vibrator (VKL);
Correcting the position of points geometric cross section is also completed by performing the manual stabilisation of points.
Performing GPK modifications of inserted railroad tracks and shunting devices, welding and installation of seamless rails, gravel replenishment and ballast modification into any profile required, adjustment of pathways, ditches and drainage systems, dismantling of obsolete railroad-track gridiron including its classification according to categorisation, and processing project documentation amended pursuant to the actually accomplished construction in both a graphic and digital form.
A prerequisite for ensuring quality performance of all the activities stated above is an extensive technical hinterland. In this regard, the Company disposes with an assembly base located in Chabarovice, equipped with state-of-the-art equipment. The equipment available at the base namely includes a siding yard disposing with gantry cranes and own small diesel loco-tractors for shunting service with a junction curve to Czech Railways (CD). In order to be able to face unexpected events, Viamont DSP a. s. disposes of its own superstructure materials equipment centred at the base in an amount sufficient for tackling - on an operational basis - any failure of operation that might possibly occur on either the relevant railroad stretches, or on shunting switches. The agents performing individual construction jobs are mobile construction & erection squads, equipped with cutting-edge small machinery equipment. Engineering assurance of relevant constructions is conducted by qualified site construction managers and foremen, participating on the preparation, implementation, and the follow-up site acceptance testing of any individual construction concerned.
Selected railroad superstructure constructions
- Rail replacement on the Becov - Obrnice track, 115.5 - 117.761 km
- Railway sidings for Kolin - Ovcarny Industrial Zone
- Regeneration and maintenance of PZ Skoda Plzen
- Medium difficulty repair of 1. TK on the Uporiny - Rehlovice track, 13.1 - 11.00 km and 8.9 - 8.3 km
- Medium difficulty repair on the Obrnice - Most railroad track
- The Zdice - Protivin track rationalisation
- Medium difficulty repair 254 - 257 ab, 291, 299, 300, 322, 323ab, Most New Station
- Reconstruction of Ledvice Power Station’s inner railway siding
- Superstructure reconstruction in the Cercany - Davle section, 2nd stage
- Medium difficult repair of 8, 13, 14, 17 Postoloprty using the material gained from Tvrsice railway station
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Services and references 
