【Construction case】MXL-150D anchor drilling rig

Stratum situation

Location (province): Guangdong

Location (city): Guangzhou

Drilling rig model: MXL-150D anchor rig

Drill tool configuration:146 casing + 76 drill pipe

Process type: foundation pit inclined anchor

Construction technology: ordinary anchor cable

Straticondition: 0-20 m mud layer,

The 20-32 m sand layer,

32-35 m medium-weathered rock formation

Construction Angle (°): 25

Pore size (mm): 150

Hole depth (m): 35

Construction efficiency (min): 70

Pure drilling time (min): 40

Pure removal removal drill time (min): 20

Construction technology

1、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;

2、Install the casing and casing drill bit, start the water pump, drill to the medium weathered rock surface;

3、Install the drill pipe, submersible hole impactor and hammer head, drill to the required hole depth, remove and pull out the drill pipe;

4、Put the made anchor cable into the casing;

5、First, the pipe grouting is carried out. When the hole is completely returned to the slurry, the grouting is stopped. After the slurry is initial, the second grouting is carried out.

—— Anman Drilling Rig sales service: Wang Qilong