可塑性很好的拱形钢支架构件已广泛地用作矿山软岩的支护。通常它们的制作是把H型钢轨轴各处进行冷弯曲,然后用鱼尾板固定而成。它可以制成各种形状,最常见如图1所示。为了获得钢支架经济合理的设计,其准则必须是:可以通用能减小突然降临在支架上的强度、预期顶板载荷和内在破坏。这些准则可以作为测定两拱形架之间的 Highly plastic arch steel bracket members have been widely used as support for soft rock in mines. Usually their production is to H-shaped rail axis around the cold bending, and then fixed with a fish plate. It can be made in various shapes, the most common as shown in Figure 1. In order to obtain a cost-effective design of a steel bracket, the criteria must be: It can be used universally to reduce the strength suddenly dropped onto the bracket, and to anticipate the roof load and inherent damage. These criteria can be used as a measure between two arches