【Construction case】 HDL-180D1 top drive drilling rig

Stratum situation

Location (province): Guangdong

Location (city): Foshan

Model: HDL-180D1 top drive rig

Drill tool configuration: 219 sleeves

Process type: micro-sized steel pipe pile

Construction technology: lead hole

Stratigraphy: 0-5 m silt; 5-18 rice flour sand, coarse sand;

18-22 rice noodle clay; 22-29 m strongly weathered mudstone

Construction Angle(°): 35

Pore size (mm): 250

Hole depth (m): 29

Construction efficiency (min): 50

Pure drilling time (min): 30

Construction technology

Construction of large-diameter steel pipe inclined support 

Auxiliary configuration: 5.5KW sewage pump, 11KW booster pump flow 

1、Site level off, put the point position;

2、When the rig moves the machine to the hole position, adjust the Angle, support the leg to the ground to ensure that the drilling process does not shift;

3、The Ф219×12.0steel pipe processing thread, can be connected to each other;

4、Connect the steel pipe with the output joint of the power head of the drilling rig, install the drill bit of 250mm diameterat the front of the steel pipe, start the water pump and drill to the required hole depth, not less than 3.5m into the strongly weathered mudstone;

5、The P.O42.5 cement slurry is used for pipe grouting, and the grouting shall be completed after the hole outlet is completely returned.        

—— Anman Drilling Rig sales service: Wang Qilong