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1. 发明授权

US5538364A Yieldable mine post having a double ball and socket configuration 失效
标题翻译：具有双重球窝配置的可收获的矿位
公开(公告)号：US5538364A
公开(公告)日：1996-07-23
申请号：US389123
申请日：1995-02-14
申请人： Steven D. Huntsman
发明人： Steven D. Huntsman
IPC分类号： E21D15/54 , E21D15/00
CPC分类号： E21D15/54
摘要： A primary mining post, prop, or support that is yieldable to the settling forces of a mine shaft and has a double ball and socket configuration to respond to the shifting that occurs with roof settling in mine shafts. The post has a ball on each end of the main support body and corresponding sockets in each of the respective top and bottom bases. The main body has means for yielding to the heavy weights put thereon.The double ball and socket configuration allows the heavy weights of a settling subterranean roof to be fully transmitted axially along the length of the main body of the post during off vertical loading without undue buckling and failure. The loading characteristics remain virtually identical with straight vertical and off vertical loading. Traditional supports will buckle and fail under a shifting load since the load forces are distributed differently under a non vertical load.
摘要翻译：主矿山支柱，支柱或支柱，能够对矿井的沉降力产生影响，并具有双重球窝结构，以应对矿井内屋顶沉降所产生的变化。该柱在主支撑体的每个端部上具有球，并且在相应的顶部和底部基部中的每一个中具有相应的插座。主体具有屈服于其上重物的装置。双球和套筒结构允许沉积的地下屋顶的重量在垂直加载期间沿柱的主体的长度被轴向完全传递，而不会有不适当的弯曲和失效。负载特性与直立和垂直垂直负载几乎相同。由于负载力在非垂直载荷下分布不同，所以传统的支撑件将在变速载荷下弯曲和失效。

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