Abstract:In view of the phenomenon of large in-situ stress and complex geological conditions in deep ore and rock, the ordinary bolt can not meet the anchoring force required by deep roadway, so the new-type self-swelling anchorage bolt is developed to solve the problem of insufficient anchoring force in deep ore and rock; Secondly, the deep ore body environment is complex, especially the corrosion effect of groundwater on the bolt, and the reliability of bolt support is difficult to guarantee. Therefore, based on the indoor test, the influence of water on the anchoring force of the new self-swelling anchorage bolt is studied. The test shows that the anchoring force of the bolt changes little with the increase of immersion time. The pull-out force test is mainly based on the fracture of the rod body, and the pull-out force when the rod body breaks reach about 190 kN, the change of anchoring agent composition is mainly affected by carbon dioxide in the air, which can be ignored. After 6 months of immersion, the results show that water has little effect on the anchoring force of the new self-expanding bolt. This study can provide a reference for bolt support in deep mines and has a certain demonstration effect.