Self drilling hollow anchor releases the energy of the rock in a controlled manner

Rock bolt forepoling is a kind of active method in the construction of mining,tunneling,foundation support project,slope stabilization and other industries,which is a huge reform in the development of the technology of rock bolting.

The parameters of self drilling hollow anchor will be provided according to the mechanism of reinforced arch and suspended theroy.The arrangement of self drilling hollow anchor will be in a fixed position where the rocks can be easily collapsed.  

So the arrangement of self drilling hollow anchor: Press Torx bolt arrangement; middle row anchor disposed in the top lane center line, on both sides of the bolt from the top lane contour is 200 to 300 mm distance, anchor spacing is generally 0.5 ~ 1.2m; Bolt angle: middle row anchor and horizontal angle is up to 90 ° angle on both sides of the bolt 70 ° with the horizontal. Middle row bolt head away from the moraine of not more than 1.0m, from both sides of the bolt head from no more than 2.0m moraine.

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