The reinforcement mesh of tunnel is a mesh with longitudinal reinforcement and transverse reinforcement arranged at a certain distance and at right angles to each other, and all intersections welded together. The reinforcement mesh of tunnel has the following characteristics: significantly improve the quality of reinforcement works, significantly improve the construction speed, and enhance the crack resistance of concrete.

　　有較好的綜合經濟效益隧道鋼筋網是由縱向和橫向鋼筋十字交叉通過綁扎或焊接制作而成的網。是建設部"2005建筑業推廣應用 10項新技術"內容之一。一片焊接網宜采用同一類型的鋼筋焊成。

　　With better comprehensive economic benefits, the tunnel reinforcement mesh is made of longitudinal and transverse reinforcement by cross binding or welding. It is one of the contents of "2005 key promotion and application of 10 new technologies in construction industry" of the Ministry of construction. A welded mesh should be welded with the same type of reinforcement.

　　焊接網按形狀、規格分為定型和定制兩種。定型焊接網在兩個方向上的鋼筋間距和直徑可以不同，但在同一個方向上的鋼筋應具有相同的直徑、間距和長度，已在有關標準、規程中作了規定。帶肋鋼筋伸長率較同類的冷加工鋼材大。

　　According to the shape and specification, the welded mesh can be divided into two types: setting and customization. The spacing and diameter of the reinforcement in two directions of the shaped welded mesh can be different, but the reinforcement in the same direction should have the same diameter, spacing and length, which has been stipulated in the relevant standards and regulations. The elongation of ribbed bar is larger than that of the same kind of cold processed steel.