Anman HDL-200C Top-Drive Drill Successfully Completes Complex Foundation Construction Project in Bijie, Guizhou Province

2026-03-04 10:10:02 超级管理员 Engineering Case 115 views

Location: Bijie, Guizhou Province

Drill Model: Anman HDL-200C Top-Drive Drill

Drill Configuration: 180 sets of pipes 89 drill rods

Drilling Method: Anchored drilling

Geological Conditions:

0-2 meters: No layer
2-24 meters: Clay layer
24-27 meters: Medium-fine grained rock layer
27-38 meters: Limestone layer (filled with fillers, prone to collapse)
38-60 meters: Rock layer (medium-fine grained, high-fine grained, and fissured)

Drilling Angle: 30 degrees

Drill Bit Diameter: 200 mm

Drill Depth: 50 meters

Construction Efficiency: 270 minutes

Pure Drilling Time: 180 minutes

Pure Disassembly Time: 56 minutes

Anman HDL-200C top drive drill working at Bijie urban construction site

HDL-200C top drive drill head at rocky soil construction site

2HDL-200C anchored drill operating near high-rise building

1. Assemble the inner and outer pipes in the correct order and according to requirements. Adjust the drill rod position to match the borehole.

2. Start the water pump and slowly advance the drill bit while monitoring pressure changes. The drilling pressure should not exceed the maximum limit, with adjustments made as needed.

3. To clean the pipe, use the downpipe to hold the pipe in place while moving the drill rod up and down to remove any debris. Then, use the uppipe to hold the drill rod and reverse the motor to loosen the drill bit.

4. When installing the drill tool, insert the drill rod into the pipe beforehand and secure it with the downpipe and uppipe. Rotate the interface to connect the drill bit, then open the upper fixture and rotate the pipe to tighten it. Start the water pump and begin drilling. If encountering hard layers, use shock waves as needed.

5. Once reaching the designed depth, clean out the borehole and remove the drill rod (when disassembling the drill rod, slide the outer sleeve up to expose the pipe at the mouth of the borehole, then use the downpipe and uppipe to dismantle). Dismantle the pipe and anchor the anchor rod. If the anchor rod encounters resistance while being lowered into the pipe, use the drill bit to pull out a portion of the anchor rod before lowering it further.

6. Move the drill to the next borehole position, then begin anchoring by pumping cement.