公开(公告)号：US5746547A

公开(公告)日：1998-05-05

申请号：US545257

申请日：1995-10-19

申请人： John Joseph Reinmann ,  Clifford A. McCartney

发明人： John Joseph Reinmann ,  Clifford A. McCartney

IPC分类号： E21D15/04 ,  E21D15/48

CPC分类号： E21D15/04 ,  E21D15/483

摘要： The invention is concerned with a mine support crib of the type which comprises a series of superimposed layers of elongate chocks. There is a plurality of parallel, spaced apart chocks in each layer with the chocks in one layer arranged transversely to the chocks in the adjacent layer or layers so that the chocks in a given layer, other than the bottom layer, cross the chocks in the layer below at crossing points which are located inwardly of the ends of the chocks. According to the invention, operatively upper and lower surfaces of the chocks are formed with notches at the crossing points. The notches interlock with one another to lock the chocks together. The notches are of such depth that portions of the chocks which are located between and beyond the notches bear on corresponding portions of chocks in the next layer but one below.

摘要翻译： 本发明涉及一种包括一系列叠加的细长轴承座的类型的矿山支架。 在每个层中存在多个平行的，间隔开的轴承座，其中一层中的轴承座横向于相邻层或层中的轴承座布置，使得除了底层之外的给定层中的轴承座穿过轴承​​座 在位于轴承座端部内侧的交叉点处的下层。 根据本发明，轴承座的可操作的上表面和下表面在交叉点处形成有凹口。 切口相互锁定将轴承座锁定在一起。 凹口具有这样的深度，即位于切口之间和之间的轴承座的部分在下一层中的轴承座的相应部分上承载，但是一个下面。

公开(公告)号：US5435670A

公开(公告)日：1995-07-25

申请号：US104796

申请日：1993-08-11

申请人： Frans R. P. Pienaar ,  Richard G. King

发明人： Frans R. P. Pienaar ,  Richard G. King

IPC分类号： E21D15/04 ,  E21D15/48 ,  E21D15/00

CPC分类号： E21D15/04 ,  E21D15/483

摘要： The invention concerns a method and apparatus for providing yielding support for a hanging wall above a footwall in a mine working. A support assembly is installed between the hanging wall and the footwall, the assembly including a spacer (10), a pack (30) and a grout-inflatable bag (32). Grout is pumped into the bag (32) and is allowed to set to apply a vertical prestess force to the support assembly. The spacer (10) is substantially stiffer in compression than the pack (30), which is designed to yield under the compressive loading applied by the hanging wall. The use of a stiff spacer (10) serves to elevate the yielding pack to a suitble operative height without the allowable slenderness ratio for the pack to be exceeded.

摘要翻译： 本发明涉及一种用于在矿井工作中为靠近墙壁上的悬挂壁提供屈服支撑的方法和装置。 支撑组件安装在悬挂壁和底壁之间，组件包括间隔件（10），包装（30）和灌浆充气袋（32）。 将浆料泵送到袋（32）中，并允许其设置以向支撑组件施加垂直的预压力。 间隔件（10）在压缩时基本上比包装（30）更硬，其被设计成在由悬挂壁施加的压缩载荷下产生。 使用刚性间隔件（10）用于将屈服包提升到适合的操作高度，而不会超过包装的允许长细比。