Manufacturer [153*7341*4170] Zhengzhou Railway Concrete Guardrail (Continuous Discounts) High-Speed Railway Subgrade Cable Trench ManufacturerHebei Hongyan Security Technology Co., Ltd. is a modern enterprise integrating research and development, production, sales, and services. Our products cover the main goods of Hongyan Security: railway cement protection fences, concrete cement railway guardrails, high-speed rail concrete fences, railway cement cable trays, railway pedestrian U-shaped channels, railway cement sleepers, new type II concrete sleepers, road boundary stones, sign posts, boundary cable trays, railway AB posts, railway boundary sign posts, subway evacuation platforms, subway evacuation platform brackets, L-shaped railway ballast blocks, railway cement ballast blocks, concrete railway ballast blocks, railway bridge ballast blocks, railway cement walking boards, railway concrete walkway slabs, and railway cement station canopy.Railroad cement protection fence manufacturer produces and sells directly, quality guaranteed, delivery on time. Welcome to call for inquiries!
High-Speed Railway Bridge Underpass Protection Fence Application Range: This product is suitable for railway closures on dry bridges with pier heights of 3 meters or more under high-speed railway bridges.
Barbed wire roll cages, metal mesh protective fences, reinforced protective fences, and under-rail protection fences collectively constitute the main materials for the protection along the high-speed railway.
High-Speed Railway Bridge Undercrossing Protection Fence; Technical Standards:
General Reference Drawing for Railway Engineering Construction (Underpass Protection Fence, Main Line (2012) 8002).
2; Technical requirements for protective railing under high-speed railway bridges:
3; Reinforced concrete pillar metal mesh fence consists of pillars, mesh panels, and connecting parts, with a protective height of 1.8 meters.
Column is made of C30 reinforced concrete precast, with a cross-sectional size of 120mm x 120mm and a height of 2.5m. Four 12mm diameter round holes are pre-drilled during precasting. During installation, the side connection plates are fixed using bolts.
5; Metal mesh panels use Q235 rectangular tube frames, with specifications of 30mm*50mm and tube thickness of 2.0mm; the internal mesh wires are made of HPB300 φ4.0mm high tensile cold drawn steel wires, with specifications of 75mm*150mm.
6; Connector plates and bolts. The column connector plate and mesh connector plate are made of 90° bent Q235 steel plate with a thickness of 4.0mm, available in two types, A and B, depending on the installation location. Both the connector plates and bolts are made of Q235 steel and are galvanized, with a galvanized amount of 270g/m².
Precision requirements for the connector plate: Length tolerance ≤ 1.0mm, width tolerance ≤ 0.5mm, thickness tolerance ≤ 0.5mm, hole position deviation ≤ 1.0mm.
Barbed wire cages, metal mesh security fences, dense security fence mesh, and under-rail protection fences collectively make up the main materials for the protection along the high-speed railway.
The railway guardrails are made of low-carbon steel wire, mainly divided into two types: galvanized guardrails and coated guardrails, which are constructed by connecting posts with mesh panels.
