一种精轧螺纹钢锚杆锚头内压安装系统与方法

Internal-pressing mounting system and method for anchor heads of finish-rolled thread steel anchor rod

Abstract

本发明涉及锚固技术领域,尤其是一种精轧螺纹钢锚杆锚头内压安装系统,包括锚杆杆体,锚杆杆体上等距设有多个锚头,所述锚杆杆体中空,所述锚杆杆体的底端设有锥形的钻头,所述锚杆杆体表面均布有长方体状的加强筋,所述加强筋与锚杆杆体表面垂直,所述锚头包括固定圈和活动圈,本发明还提出了一种精轧螺纹钢锚杆锚头内压安装系统的安装方法,本发明通过多个自锁式的锚头进行预紧和加压,防止锚杆脱出,且设置了固定座对位置进行固定,配合安装槽起到良好的防止偏移脱出的作用,另外设置了预紧螺母进行预紧,提高了系统的稳定性。
The invention relates to the technical field of anchorage, in particular to an internal-pressing mounting system and method for anchor heads of a finish-rolled thread steel anchor rod. The internal-pressing mounting system comprises an anchor rod body, wherein the anchor heads are arranged on the anchor rod body at equal distance; the anchor rod body is hollow; a tapered drill bit is arranged at the bottom end of the anchor rod body; rectangular reinforcing ribs are uniformly distributed on the surface of the anchor rod body; the reinforcing ribs are perpendicular to the surface of the anchor rod body; and each anchor head comprises a fixed ring and a movable ring. The invention further discloses a mounting method for the internal-pressing mounting system for the anchor heads of the finish-rolled thread steel anchor rod. The self-locking anchor heads are jacked and pressurized, so that the anchor rod is prevented from dropping; and a fixed base is arranged for fixing the position, and is matched with a mounting slot to achieve the effect of preventing offset and dropping; besides, a pre-tightening nut is arranged for jacking, so that stability of the system is improved.

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