Stratum situation
Location (province): Jilin
Location (city): Changchun
Drilling rig model: AK-12 anchor drilling rig
Drill configuration: 180 screw ger
Process type: foundation pit anti-floating anchor rod
Construction technology: anchor bolt
Formation situation:
0-8m sand layer (sand moisture: slightly moist)
8-11.5 m sandstone strata (sandstone humidity: wet)
Construction Angle(°): 90
Pore size (mm): 200
Hole depth (m): 11.5
Construction efficiency: 40 roots / day
Pure drilling time (min): 10
Conduct test holes at the site chosen by the customer
Construction technology
Construction of AK-12 anchor drill with 12 meters anti-floating anchor rod
Construction: AK-12 rig, 180 screw ger 12 m
Background configuration: 13 cubic air compressor (rated exhaust pressure: 1.45MPa), one grouting pump
Construction procedure:
1、Move the drilling rig to the construction hole position, and install the 12 m drill pipe and drill bit once! Adjust the drilling rig to keep the drill bit aligned with the hole position. Then operate the legs and ground support to keep the rig level!
2、Open the air compressor and start the operating handle for drilling operation. If the progress is slow during the drilling period, it can be solved by washing the hole for several times by operating the rotary machine!
3、After drilling to the required hole depth, wash back and forth again, and use the air compressor gas to blow out the residue in the hole. Then pull out the drill pipe and close the air compressor.
4、Move the drill to get out of the hole position, use the drill to roll the made bolt down into the hole, and start the grouting. At the same time, the drill moves to the next hole position to continue the construction.
—— Anman drilling rig after-sales service: Bian Hongbiao, Xi Qiguang