Czechia – Construction work – Stavební údržba konstrukcí opěrných a zárubních zdí a protihlukových stěn

The subject of public contracts awarded in the established DNS will be the performance of construction maintenance and repairs of structures that have the character of free-standing walls, retaining walls, frame walls, noise barriers and other construction structures that perform a static function in stabilizing the ground body (reinforced slopes, wire stone structures, etc.). The expected scope of activities will vary depending on the type of construction structure and will always be specified in individual calls for tenders. Construction maintenance may include in particular: • Repairs of erosion grooves or crushed foundation structures, replenishment of soil. • Repairs of structures after traffic accidents, often in the case of noise barriers, complete replacement of the original structure, including repair of piles to the required length. • Additional mechanical fastening of loose elements of noise barrier panels or parts of the filling. • Repairs of acoustically absorbing or reflective elements in noise barriers or their complete replacement. • Replacement of facing wall cladding elements or their addition. Reconstruction of stone cladding, including jointing. • Renovation of weathered reinforced concrete structures, cracks, fissures, remediation of reinforcement corrosion, pressure injection. • Repair of expansion joints of individual fields in reinforced concrete walls. • Replacement of part or the entire cornice structure, e.g. with steel road railings and guardrails. • Restoration of vertical and horizontal traffic markings. • Repair of anti-corrosion protection in steel structures, replacement of part of the structure, e.g. railings, replenishment of missing railing filling. • Repair of vertical waterproofing of walls, restoration of drainage function. • Repair of linear drainage in structures. • Repair of damaged gabion structures, replenishment of stone fraction. • Repair of adjacent parts of the road affected by the repair, base layers, stabilization,...