Installation requirements for pipe joint anchors:
The manufacturer of Rockbolt accessories tells you that in accordance with the reinforced mortar anchor, it is generally divided into two types of construction processes: first grouting and then anchoring and first anchoring and grouting. The construction method of first grouting and then anchoring, pay special attention to grouting leakage during installation. In the case of quality problems, the construction method of anchoring and grouting should pay attention to the problem of grouting and exhaust, otherwise it will be easy to produce insufficient mortar, which will directly lead to poor anchoring effect. The Rockbolt accessories manufacturer tells you that when you follow the resin anchor rod, you usually need to use the rod body to send the medicine bag to the bottom of the hole and stir for 30 seconds to fix the rod body. After 15 minutes, the resin cures to 80% to 90% of the final Strength, the installation and construction of the pad can be carried out. In the case of low temperature and flowing water (180~390ml/min) in the hole, the resin anchor rod can still be used.

The manufacturer of Rockbolt accessories tells you that the pre-stressed anchor rod is installed. After the inner anchor head of the anchor rod is anchored, the outer anchor end is tensioned with a jack, and a pre-tensioning force of about 10t is applied to each anchor rod to tighten the back plate bolts of the rod body. Pour cement mortar.
Construction steps of pipe joint anchor hole:
(1) Hole location layout: Hole locations should be arranged and marked according to design requirements and surrounding rock conditions, and the deviation should not be greater than 20cm.
(2) Bolt hole diameter: The hole diameter of the mortar bolt should be 15mm larger than the diameter of the bolt body.
(3) Drilling direction: The bolt hole should be drilled radially along the periphery of the tunnel, but the drilled hole should not be parallel to the rock surface.
(4) Drilling depth: Rockbolt accessories manufacturer tells you that the error of the hole depth of the mortar bolt should not be greater than ±10cm.
(5) Rockbolt accessories manufacturer tells you that the bolt hole should be straight.
(6) Clear the hole before grouting: Rockbolt accessories manufacturer tells you that if there is water, rock dust, debris or other debris in the drill hole, it will affect the quality of grouting and hinder the insertion of the bolt body, and also affect the effect of the bolt. Therefore, manual or high-pressure wind or water must be used to remove water, rock dust, debris and other debris in the hole before installation.