Lei Wang Anping Wire Mesh Products Co., Ltd. (http://www.apleiwang.com/) Hebei Hengshui quality certified company Commercial Union, with Lei Wang and other brands, has a good reputation, honesty, service-oriented, click on the page "Commercial Union Support" icon and we will be happy to serve you! Steel mesh lining in the tunnel under the application of national standards, "highway tunnel design specification" JTGD70-2004 requirements. Should be located within the sprayed concrete ribbed steel mesh, shotcrete help to improve the shear and flexural strength, the ability to improve the resistance of concrete steel mesh used punching range, anti-bending ability, improve the integrity of shotcrete, reducing shotcrete The shrinkage cracks steel mesh to prevent local swap block. A rectangular arrangement of steel mesh grid should, reinforced steel mesh spacing of 150 ~ 300mm. Can be 150mm × 150mm, 200mm × 200mm, 200mm × 250mm steel mesh material, 250mm × 300mm, 300mm × 300mm combinations. Length of lap steel mesh not less than 30d (d is the bar diameter). Shotcrete reinforcement mesh protective layer thickness of not less than 20mm steel mesh characteristics, when using double steel mesh when the interval between two layers of steel mesh distance of not less than 60mm. Shanghai steel mesh | mesh reinforcement specifications are longitudinal reinforcement and transverse reinforcement were arranged in a certain distance and at right angles to each other, all cross points are welded together mesh. Steel mesh is reinforced by the longitudinal and transverse cross banding or welding made through the network. Ministry of Construction "2005 Construction focus on the promotion of new technologies applied 10 'contents. Steel mesh theoretical weight calculation formula: Theoretical Weight KG = the length of M * with reinforced wire diameter (MM) * Wire Diameter (MM) * 0.00617φ10 reinforced 0.616539kg / m for applications in industrial and civil building pillars floor, roof , walls, concrete pavement, pavement, airport runway, tunnel lining, culvert, dock floor, precast and other fields. Steel mesh its market prospect is very broad; welded steel suitable for factory, large-scale production, high effectiveness, in line with environmental protection requirements, to adapt to emerging trends in industrial construction industries. 1, welded steel construction of the road to go is the world steel industry development trend. 2, welded steel mesh reinforcement of this new form, especially for large-scale concrete works. 3, China's cold drawn ribbed steel, hot-rolled steel grade III broad, rapid application development for the welded mesh material to provide a good foundation. Welded mesh product standards and the use of formal procedures implemented for improving product quality, accelerate the popularization and application played a positive role. 4, China's market has great potential demand for steel mesh. 5, steel mesh aesthetically pleasing. 6, China is the world steel big country. 7, construction steel mesh in the country's development has had the soft and hard conditions.