Cartridge anchor: it is a bonded anchor with cement cartridge as anchoring agent, and it is a combination of anchoring agent and anchor rod. Generally, it is designed to be fully bonded (there are two kinds of bonding: end bonding and full-length bonding), and the bolt body generally adopts threaded steel bars (the design will be clear).

Cement cartridge is generally made of early-strength cement, and is packed into a cylinder with a special bag, and its diameter is close to that of the borehole (to ensure smooth insertion).

Mortar anchor: Mortar anchor is a solid steel bar, and the commonly used parameters are 4m in length and 22mm in diameter. After installation, the anchor hole is plugged with cement mortar, and the tail end is equipped with 150* 150*6mm HPB235 steel pad, which is often used for tunnel side walls.

2. Different characteristics

Magazine anchor: Magazine anchor is more convenient and more operable.

Mortar anchor: This kind of anchor is easy to install and has low cost, but its anchoring force is weak. It is mostly used for slope protection or temporary anchorage with complete rock structure, which is rare underground.

3. Different applications

Barrel bolt: used for mine roadway excavation support and highway tunnel initial support.

Mortar anchor: commonly used in tunnel construction.

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