​What Should Be Noted When Using Multi Functional Anchoring Drilling Rig for Drilling?

What Should Be Noted When Using Multi Functional Anchoring Drilling Rig for Drilling?

The Multi Functional Anchoring Drilling Rig employs hydraulic pressure for borehole formation. When using the Multi Functional Anchoring Drilling Rig for pre-drilling operations, planning, supervision, geological assessment, and construction units must consider the geological layout of the drilling location. Special attention should be paid to the following aspects:

1.Positioning Accuracy

When positioning the Multi Functional Anchoring Drilling Rig, corrections must be made for longitudinal, lateral, and angular deviations to ensure proper alignment with the retaining wall's vertical position.

2.Wall Thickness Requirements

The wall must maintain straightness to facilitate easy installation of tie rods and grouting operations.

3.Structural Integrity

To maximize anchor effectiveness, the wall must not exhibit cracking, structural loosening, or any condition that might affect settlement or compromise the load-bearing capacity of soil anchors.

4.Drilling Fluid Restriction

Bentonite mud must not be used during drilling with the Multi Functional Anchoring Drilling Rig, as it may form a slurry coating on the borehole wall and reduce load-bearing capacity.

5.Permissible Tolerances

Allowable deviations for anchor drilling:

Horizontal offset: 50mm  

Vertical deflection: 20mm  

Angular deviation: 0.5 degrees

When replacing drilling segments with the Multi Functional Anchoring Drilling Rig, hydraulic pressure should be utilized to expand the borehole diameter.