Detachable reused single-pore clamping piece type anchor rope anchorage device

Abstract

The invention relates to a detachable reused single-pore clamping piece type anchor rope anchorage device which comprises a large tray, a primary anchor plate, a clamping piece and an anchor rope. The anchor rope is arranged in the middle, the clamping piece is arranged on the outer side of the anchor rope, the primary anchor plate is arranged on the outer side of the clamping piece, the large tray is arranged at the front end of the primary anchor plate, the anchor rope penetrates through a through hole of the large tray, and the primary anchor plate is formed by two oppositely open conical barrel. A secondary anchor plate is sleeved on the outer surface of the primary anchor plate, and the secondary anchor plate and the primary anchor plate are provided with limiting devices. The detachable reused single-pore clamping piece type anchor rope anchorage device has lock component detachable reused functions and is safe and convenient to dismantle, firm, reliable and easy to process, an installing method and device have no changes in comparison with conventional locks, a tray transmission force is uniform, material sources are wide, yielding anchoring of a soft rock roadway and post-exploitation retracement of a gate road support of a coal face can be achieved.

Description

technical field [0001] The invention relates to an anchor support device for mines and geotechnical engineering, in particular to a detachable and reusable single-hole clip type anchor cable anchorage. Background technique [0002] Anchor cable support is widely used in industrial projects such as coal mine shafts, tunnels, slopes, and foundation reinforcement. It can provide greater pre-tightening force and work resistance for the anchored rock mass, and its safety protection and reinforcement capabilities are 3-3 times that of ordinary anchors. 5 times, because of its flexibility, it can realize the installation of deep holes greater than the height of the roadway, and has become one of the necessary support methods for high and low pressure soft rock roadways in deep wells. In the application of mining anchor cables, the single-hole clip type is the most widely used. Its lock is composed of three parts: clip, anchor plate and tray. The clip can be 2-piece or 3-piece, and ...

AI Technical Summary

Problems solved by technology

After the anchor cable is loaded, the elongation is small and the rigidity is strong. It cannot be re-pressurized after unloading, and the clip and anchor plate cannot be recovered. In repaired tunnels, it is often necessary to destructively cut the anchor cable, so that secondary anchoring cannot be performed. In the non-permanent mining roadway where the roof is caving, the roof and anchorage in the anchor cable are removed, and there is a great danger of impacting and hurting people.

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