Formation information
Location (province): Guangdong
Location (city): Shenzhen
Drill rig model: SJL-60 rotary jet drill
Drill tool configuration: 89 triple rotary spray drill pipe
Process type: rotary spray reinforcement
Construction technology: triple rotary spray
Stratigraphy: backfill the soil layer
Construction Angle: (): 90
Pore size (mm): 800
Hole depth (m): 11
construction technology
1、Site leveling, hole position placement point;
2、The rig is in place, and then use the leg to adjust the verticality of the rig pushing the frame;
3、Test the operation of air compressor, high pressure pump and grouting pump for test injection;
4、Quickly drill the connected drill pipe to the required predetermined depth for rotary injection operation: lifting speed 10-12cm / min, speed 15-18 r/min, high pressure pressure 30-32MPa, cement slurry pressure 1-2MPa, air pressure 0.7 MPa;
Note: the elevated drilling rig lifting process does not need to remove the drill rod, pay attention to observe the grouting situation
5、The drill bit is lifted to the orifice position to reduce the pressure of the high-pressure water pump;
6、Pull out the drill pipe, clean the grouting pump, drill pipe, grouting pipe, etc., and move the machine to the next pile position for construction.
—— Anman Drilling Rig sales service: Wang Qilong