Roof bolter, also known as soil nail machine, is a pneumatic impact machine, mainly used for rock and soil bolts, roadbed, slope treatment, underground deep foundation pit support, tunnel surrounding rock stability, prevention of landslides and other disasters, underground engineering support And foundation treatment of high-rise buildings. It is also suitable for non-prestressed anchor support of deep foundation pit spray protection and slope soil nailing engineering.
The roof bolter is suitable for soil nails made of various materials (such as angle steel, rebar, steel pipe, etc.). Two methods are generally used to make soil-nailed walls: one is to insert reinforcement by drilling holes, and then grouting to form mortar anchors. This method is time-consuming and material-intensive, and it is not easy to construct the quicksand and sand-stone layers. The second is to make rebars, angle steels, steel pipes and other materials into soil nails, which are mechanically or artificially driven into the soil or sand layer to form a soil nail wall
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