What preparations should be made before using anchors

Shandong anchor manufacturer produces anchor is a kind of anchor, active reinforcement of the surrounding rock of the new anchor. Before hitting the anchor, we Should knock on the gang to ask the top, the loose rock block block diao exhaust, deal with the dangerous rock. Check whether the width and height of the roadway meet the requirements, and the undigging roadway that does not meet the requirements should be reworked to meet the requirements before anchoring. When the height of the roadway is high and the operation channel needs to be erected, the operation table should be erected firmly, and the operator should stand firmly and avoid the collapse of the channel. Determine the anchor eye position according to the requirements of the anchor eye position, and dig deep eye sockets with steel brazes or handaxes. Adopt the working method of two persons operating one wind drill to drill anchor eye holes.

The anchor rods and the roadway surrounding should adhere to the perpendicular direction, the gang eye and the center line of the roadway adhere to the perpendicular, and the angle of intersection between the roof eye and the rock surface is not less than 75 degrees. The depth of the eye should be greater than 50mm anchor length. When drilling the eye, the selection of drill bit should be checked based on the requirement that the diameter of the drill bit is less than 2mm of the outer diameter of the anchor rod, and it should be replaced in time if it is found to be not in accordance with the requirements. Drill holes are required to be straight and flat. Blow clean the rock powder after drilling. Before installing the anchor rods, it should check whether the anchor rod eye position, eye diameter, eye distance, anchor rod components, etc. meet the planning requirements, otherwise, the anchor rods shall not be installed.

When installing anchor rods, stab the conical end of pipe slit anchor rods into the eye hole, snap the end of the booster into the wind drill, stab the pipe slit anchor rods at the front end of the wind drill, and drive the wind drill openly and gently in a straight line until the pallet is attached to the rock gangs. When the rock appearance is not flat, it can be filled with mortar. In the process of digging, it is required that the axis of the wind drill's push is consistent with the axis of the anchor rods and anchor holes to avoid zigzagging. When loading and unloading and installing anchor rods, avoid hitting and squeezing the pipe slit anchor rods to avoid deformation of the anchor rods, difficulty in installing, and reduction of anchoring force. Take a group of 3 anchor rods every 3 dozens of meters or every 300m in the roadway, and conduct anchoring experiments with an anchor tension meter, and make good records of the experiments.