公开(公告)号：US20140308081A1

公开(公告)日：2014-10-16

申请号：US14244607

申请日：2014-04-03

申请人： DSI UNDERGROUND SYSTEMS, INC.

发明人： James Raymond CLINGAN ,  Phillip Edwin GRAMLICH, JR.

IPC分类号： E21D21/00

CPC分类号： E21D21/008

摘要： An anchorable mine support for anchoring in a borehole with resin or grout. The anchorable mine support comprises a tensionable elongate metal member and a sleeve disposed on at least a portion of the tensionable elongate metal member. The sleeve has a thickness of less than about 1 mm. A method of reducing frictional resistance between a tensionable elongated bolt and a hardened resin nut in a borehole formed in a face of a mine passage. The method reduces the frictional resistance between a tensionable elongated bolt and a hardened resin nut, thus improving the ability to tension a tensionable elongated bolt and stabilize a rock formation or structural body.

摘要翻译： 可锚定的矿井支架，用树脂或水泥浆锚固在钻孔中。 可锚定的矿山支架包括可张紧的细长金属构件和设置在可张紧的细长金属构件的至少一部分上的套筒。 套筒的厚度小于约1mm。 一种降低可拉伸细长螺栓和形成在矿井通道的表面的钻孔中的硬化树脂螺母之间的摩擦阻力的方法。 该方法降低了可张紧的细长螺栓和硬化的树脂螺母之间的摩擦阻力，从而提高了拉伸可张紧的细长螺栓并稳定岩层或结构体的能力。