Hollow Grouting Drilling Rock Bolt All Thread Rod

Hollow grouting anchor rod  is a type of hollow anchor rod, mainly used for relatively stable and complete rock layers. Anchoring agents such as resin, engineering glue, and quick setting cement are injected from the center of the anchor rod, which has better anchoring quality than ordinary anchor rods.
Due to the emergence of self piercing hollow grouting anchor rods, hollow grouting anchor rods can also be used in loose soil conditions.

 

1. Combination hollow anchor rod is a type of anchor rod that is combined with steel bars and equipped with an air outlet pipe.

    Its main feature is that it can be customized and extended.

2.The expansion shell type hollow grouting anchor rod is a device that generates anchoring force through the compression friction between the expansion shell and the inner wall of the anchor hole, and can apply pre-stress to fix the hollow anchor rod body in the center of the anchor hole.

3.Hollow self advancing anchor rods are mainly used for excavation and support construction in fault fracture zones. They play a role in supporting complex geological conditions, improving the bearing capacity of surrounding rock and ensuring its overall stability.

4.Hollow grouting anchor rod is pre drilled and directly inserted into the grouting for use.

 

• Material: Q355B
• Diameter: Φ25, Φ30, Φ32, Φ35, Φ40
• Length: On demand customization, length error <±1%
• Thickness: 3mm, 4mm, 5mm
• Features: Easy installation, no need for on-site thread processing; Upward exhaust anchor head; pressure casting

1. Grouting workers must wear protective tools.
2. Carefully inspect the machinery, equipment, and wiring. Avoid electric leakage and injury to people.
3. The mechanical driver strictly follows the operating procedures.
4. The grouting worker and the grouting pump driver must coordinate well.
5. After grouting is completed, the valve must be closed first, and then the grouting machine must be closed.
6. The grouting port is not allowed to touch people

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