self drilling anchor bar

27/gen/2015 04:21:26 sinorockzqq Contatta l'autore

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Construction technology of self drilling anchor bar is this:

1, the alloy drill and anchor one end of the connection, and the other end connected to the solder sleeve, shank and then connect with the trolley or handheld rig well. According to the depth of the design and then begin drilling ,required filling with the cooling water when  drilling. (For a longer bolt, connected sets available to connect, and then drilling) 

2. Remove the rig,  plug the pulp into the rod, and insert it into the hole, ready to grouting. The special circumstances of surrounding rock when grouting pressure is too large or too broken, can anchor sealing agent.

3, the end of the fast grouting joints and bolt connections, grouting joints connect the other end of the grouting.

4, start grouting , grouting to be full and the pressure to meet the design value at shutdown. Grouting pressure of machine according to the design parameters and performance .

Fui Sha than the reference value of 1: 0 to 1: 1, the water-cement ratio reference value of 0.45 to 0.5: 1.

5, the installation plate and nut and tighten the nut.

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