【Construction Case】HDL-180C top drive drilling rig

Stratigraphic Situation

Location (Province):Liaoning

Location (City):Fushun

Drilling rig model:HDL-180C full diesel-driven version of top-driven multifunctional drilling rig

Drilling tool configuration:146 casing+73

Drill pipe process type:pit inclined anchor

Construction process:Ordinary anchor cable

Stratigraphic conditions: 1~8m construction backfill, sand and pebble layers are dominant; 9~13m medium-weathered, strongly weathered saprolite is dominant

Construction angle (°):45

Hole diameter(mm):150

Hole depth(m):13

Construction efficiency(min):60

Pure drilling time(min):35

Pure dismantling time(min):15

Construction techniques

Background configuration: a 15 kw booster pump, a 5.5 kw sewage pump. 

1、The rig moves the machine to the hole, installs the casing, adjusts the Angle by 45 degrees, supports the legs on the ground (strike the track and legs together), and alignment with the hole;

2、First turn a single casing to the inlet, then clamp the casing male joint with the lower holder, put the drill pipe into the casing, and drill with water. When the hard layer using impact drilling and hole washing, then double pipe drilling, pay attention to slag discharge and observe the water situation;

3、After the double pipe continuous operation to the rock layer (9 meters into the rock), and then the drill pipe to the required depth;

4、Remove the drill pipe, put the made anchor cable into the casing, grouting, and remove the casing;

5、Move the next hole position of the machine           

Product introduction

Main construction characteristics:

1、All the wood moves, and the machine moves with me.

Equipped with 154kW diesel engine, not limited by power, the construction site free walking;

2、Power head, with an impact.

Using double hydraulic motor drive, large output torque, and its own impactor, can meet the construction of most of the formation;

3、Stable structural design

Stable in construction, drilling tool loss is small, can be done tunnel pipe shed;

4、New type of variable Angle mechanism.

The adjustment range is expanded, easy to efficient the hole, greatly reduce the requirements of the working face.