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CONTRACT FOR LEVELLING OF COAL MACHINE RAILS – 2nd PHASE

The Works performed under this contract consisted essentially in the realignment
of the coal handling machine rails, the repairing of degraded concrete and the rail foundation beam expansion joints. 

According to the survey accomplished on the coal park, several anomalies on the rails and respective foundation beams were detected, resulting in the:  

- Planimetric and altimetric misalignment of some rail stretches;

- Deterioration of the foundation beam concrete and attached structures, presenting delamination, cracking and visible armouring, namely on the rail anchoring points;

- Corrosion of rail anchoring metallic parts that sometimes present visible spots which should be embedded in the reinforced concrete beams for their protection;

- Foundation beam expansion joint filling material deteriorated and sometimes with deterioration of the reinforced concrete surfaces which constitute the joint edges;

- Repairing of the carrier blocks;

- Gluing of the rail levelling liming plates.

Therefore, the object of this contract was to rectify the anomalies detected, following the surveys performed and validated by EDP. 



FACTS

Owner
EDP – Gestão de Produção de Energia, S.A. – Direcção de Projectos e Investimentos

Location

Sines thermoelectrical power plant

Execution deadline
6 months

Material applied
Galvanized iron plates for anchor levelling;
Liming galvanized iron plates for levelling of intermediate spots between anchors;
Galvanized pins;
Galvanized iron stops;
Galvanized washers;
Sika Grout for crack repairing;
Sikaflex for crack repairing;
Emaco Nanocrete for armouring protection;
MC-DUR Kleber for liming plate gluing;
Hempacrcryl Evolution for beam painting;
Gutters not armed, the Cavan type, for drainage.

Equipment used

Topographic equipment;
Welding Equipment;
Moto-joints;
Rail jacks;
Compressors;
Pneumatic hammers;
Lights tools.

 
 
   
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