Hollow grouting anchor rod mortar self entering anchor rod tunnel support mining reinforcement accessories

Description :

Hollow anchor rod is an efficient geotechnical engineering support material that integrates drilling, grouting, and anchoring functions. It is widely used in tunnel excavation, slope reinforcement, foundation pit support, and mine roadway maintenance. Its core structure is a hollow tube body, usually made of high-strength alloy steel. The inner wall is smooth for the smooth passage of grout, and the outer wall can be equipped with threads or spikes to enhance the biting force with the surrounding rock. During construction, anchor rods are directly used as drill rods to achieve "self drilling" and significantly shorten the construction period; Subsequently, cement mortar or chemical slurry is injected through the hollow channel to fully fill the cracks around the anchor rod, forming an overall bearing system and significantly improving the stability of the formation. Compared to traditional solid anchor rods, hollow anchor rods have the advantages of light weight, high strength, good grouting fullness, and strong pull-out resistance, making them particularly suitable for fractured rock layers, loose soil, or high stress deformation areas. This product is produced by Hebei Hongnian New Material Technology Co., Ltd. It supports left/right threaded customization and comes with a complete set of industrial and mining accessories such as trays, U-shaped cables, anchoring agents, etc. to ensure system compatibility and installation convenience. Directly supplied by the manufacturer, with complete specifications, the length, diameter, and surface treatment process (such as galvanizing, epoxy coating) can be customized according to engineering design requirements, meeting relevant industry standards such as GB/T 36379-2018. It is an ideal choice for major infrastructure projects such as railways, highways, water conservancy, and subways.

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