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    • 5. 发明申请
    • ENGINEERED METAL CRIB FOR USE AS A SUPPORT STRUCTURE
    • 工程金属CRIB用作支撑结构
    • US20110250023A1
    • 2011-10-13
    • US13085926
    • 2011-04-13
    • Yoginder P. Chugh
    • Yoginder P. Chugh
    • E02D17/00E02D29/00
    • E21D17/006E21D17/01
    • This invention provides improvements through an engineered metal crib element for construction of cribs in mines to provide support between two surfaces and use of crib elements to construct cribs. The engineered metal crib element consists of a center elongate structural element and at least two outer load carrying steel members. The outer load carrying members may be composed of solid or hollow metal with one or more reinforcements within each load carrying member. Each outer load carrying member is attached to the center elongate element at the distal ends of the elongate structural element. The crib structure may be constructed by superimposing only these steel crib elements in 2×2 layers, 2×3 layers, 3×3 layers or in any other suitable layering system. The engineered metal crib elements are lightweight, have controllable higher stiffness and load carrying capacity than current wooden cribs, have engineered plastic yielding characteristics and allow much lower resistance to air flow in underground mine roadways.
    • 本发明通过用于在矿井中构造婴儿床的工程金属床元件提供改进,以在两个表面之间提供支撑并且使用婴儿床元件来构造婴儿床。 工程金属床元件由中心细长结构元件和至少两个外承载钢构件组成。 外承载构件可以由在每个承载构件内具有一个或多个增强件的实心或中空金属构成。 每个外承载构件在细长结构元件的远端处附接到中心细长元件。 婴儿床结构可以通过仅将这些钢格子元素叠加在2×2层,2×3层,3×3层或任何其它合适的分层系统中来构造。 工程金属床单元件重量轻,具有比目前的木制婴儿床更高的刚度和承载能力,具有设计的塑性收缩特性,并允许在地下矿井道路中的气流阻力更低。