A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated precession grouting anchor rod structure and using method
The invention discloses a fabricated precession grouting anchor rod structure. The fabricated precession grouting anchor rod structure comprises an anchor rod body, a grouting pipe, a precession drill bit, lug buckles, a stop-grouting plug, a tray and a locking nut; the stop-grouting plug is arranged at one end of the locking nut of the anchor rod body and connected with the tray and the locking nut through threads; the whole main body of the anchor rod body is a threaded hollow steel pipe; a grouting hole with a trapezoidal hole is formed in the outer surface of the anchor rod body; a protrusion is arranged on the trapezoidal hole; the inner surface of the grouting hole is smooth and connected with the far-end precession drill bit; the lug buckles are installed at the end, close to the drill bit, of the anchor rod body; and the inner walls of the lug buckles are provided with threads identical with the outer wall of the anchor rod body; the lug buckles are two steel sheets with the same curvature as the outer wall of the anchor rod body; one ends of the two steel sheets are connected through a rotating shaft, and the other ends of the two steel sheets are buckles; the precession drill bit is provided with threads, and a nested grouting structure is arranged in the drill bit; and the grouting structure is a hollow cone steel pipe, and a stable supporting structure is formed after high-pressure grouting. The anchor rod body is provided with the trapezoidal protrusion and drill hole, so that the contact area of the anchor rod body and rock is increased; the lug buckles are arranged at the positions close to the drill bit; the steel pipe in the drill bit forms an external support body through grouting impact, so that the drawing force of the anchor rod body is improved; and the problem that the anchor rod body is snapped or the anchoring force is reduced due to long-term corrosion of a traditional anchor rod can be solved by additionally buckling the lug buckles on the anchor rod body, operation is easy, and the anchoring force is high.
本发明型公开了一种装配式旋进注浆锚杆结构，包括锚杆体、注浆管、旋进钻头、耳扣、止浆塞、托盘、锁紧螺母，所述锚杆体的锁紧螺母一端设置止浆塞，通过螺纹与托盘和锁紧螺母连接，所述锚杆体主体整体为螺纹中空钢管，所述锚杆外表面为带有梯形孔洞的注浆孔，所述梯形孔洞上设有凸起，所述注浆管内表面光滑与远端旋进钻头连接，所述锚杆体靠近钻头一端安装耳扣，且耳扣内壁为带有与锚杆外壁相同的螺纹，所述耳扣为两片与锚杆外壁有相同曲率的钢片，两钢片一端通过一杆转动轴连接，另一端为卡扣，所述旋进钻头带有螺纹，钻头内设有嵌套注浆结构，所述注浆结构为空心锥体钢管，高压注浆后形成稳定支撑结构，本发明型通过锚杆主体带有梯形凸起钻孔，提高了锚杆与岩石的接触面积，并在靠近钻头处设置耳扣，钻头内钢管经注浆冲击形成外部支体，提高了锚杆的拉拔力，通过在锚杆上增扣耳扣能够解决传统锚杆因长期腐蚀导致锚杆拉断或锚固力下降的问题，易施操作、锚固力强。
Fabricated precession grouting anchor rod structure and using method
The invention discloses a fabricated precession grouting anchor rod structure. The fabricated precession grouting anchor rod structure comprises an anchor rod body, a grouting pipe, a precession drill bit, lug buckles, a stop-grouting plug, a tray and a locking nut; the stop-grouting plug is arranged at one end of the locking nut of the anchor rod body and connected with the tray and the locking nut through threads; the whole main body of the anchor rod body is a threaded hollow steel pipe; a grouting hole with a trapezoidal hole is formed in the outer surface of the anchor rod body; a protrusion is arranged on the trapezoidal hole; the inner surface of the grouting hole is smooth and connected with the far-end precession drill bit; the lug buckles are installed at the end, close to the drill bit, of the anchor rod body; and the inner walls of the lug buckles are provided with threads identical with the outer wall of the anchor rod body; the lug buckles are two steel sheets with the same curvature as the outer wall of the anchor rod body; one ends of the two steel sheets are connected through a rotating shaft, and the other ends of the two steel sheets are buckles; the precession drill bit is provided with threads, and a nested grouting structure is arranged in the drill bit; and the grouting structure is a hollow cone steel pipe, and a stable supporting structure is formed after high-pressure grouting. The anchor rod body is provided with the trapezoidal protrusion and drill hole, so that the contact area of the anchor rod body and rock is increased; the lug buckles are arranged at the positions close to the drill bit; the steel pipe in the drill bit forms an external support body through grouting impact, so that the drawing force of the anchor rod body is improved; and the problem that the anchor rod body is snapped or the anchoring force is reduced due to long-term corrosion of a traditional anchor rod can be solved by additionally buckling the lug buckles on the anchor rod body, operation is easy, and the anchoring force is high.
本发明型公开了一种装配式旋进注浆锚杆结构，包括锚杆体、注浆管、旋进钻头、耳扣、止浆塞、托盘、锁紧螺母，所述锚杆体的锁紧螺母一端设置止浆塞，通过螺纹与托盘和锁紧螺母连接，所述锚杆体主体整体为螺纹中空钢管，所述锚杆外表面为带有梯形孔洞的注浆孔，所述梯形孔洞上设有凸起，所述注浆管内表面光滑与远端旋进钻头连接，所述锚杆体靠近钻头一端安装耳扣，且耳扣内壁为带有与锚杆外壁相同的螺纹，所述耳扣为两片与锚杆外壁有相同曲率的钢片，两钢片一端通过一杆转动轴连接，另一端为卡扣，所述旋进钻头带有螺纹，钻头内设有嵌套注浆结构，所述注浆结构为空心锥体钢管，高压注浆后形成稳定支撑结构，本发明型通过锚杆主体带有梯形凸起钻孔，提高了锚杆与岩石的接触面积，并在靠近钻头处设置耳扣，钻头内钢管经注浆冲击形成外部支体，提高了锚杆的拉拔力，通过在锚杆上增扣耳扣能够解决传统锚杆因长期腐蚀导致锚杆拉断或锚固力下降的问题，易施操作、锚固力强。
Fabricated precession grouting anchor rod structure and using method
一种装配式旋进注浆锚杆结构及使用方法
CAO QIKUN (author) / FAN WEI (author) / HUA YANGYANG (author)
2021-06-15
Patent
Electronic Resource
Chinese
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