Self drilling anchor bolt system is mainly used for the side wall and arch support in the project and it integrates drilling, grouting and anchorage. It is widely used in tunnel advance support, slope protection, building foundation, and hydroelectric projects, etc.. During the construction process, the injected slurry flows out from the bottom of the drill bit along the middle of the anchor bolt, and then spreads to the surrounding and formation gaps to reinforce the surrounding rock. It can ensure the grouting efficiency to the utmost and completely solve the defects of the traditional bolts.
Self drilling anchor system not only can be applied under complicated geological conditions such as crushing layer and loose earth fault layer, but also has many advantages such as economy, practicality, time saving, energy saving and so on. The operation is simple and convenient, raw material consumption is small, and full mechanization is ensured.
The self-drilling anchor system has superior tensile strength and pressure resistance. Its use can form complexes between formations, improve the mechanical properties of the formation, resist deformation and displacement, strengthen the stratum strength, and provide effective and reliable engineering. support.
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