Multifunction drill carriage applies to direct or circulation drilling works in different stratums.
It is able to impact crushing with percussion hammer or submerged orifice hammer. The multifunction drill carriage meet the requirements of various construction works，such as hydraulic pressure release, underground mini-pile, bolt anchoring, geological survey, foundation reinforce etc.
Multifunction drill carriage applies to bolt anchoring, geological surveying, grouting reinforcement, percussion rotary drilling or normal rotary drilling of mini-pile underground works and so on in soil layer, clay layer, sand layer, lithosphere, water bearing layer and other geological conditions. It could be used to do the jet grouting work for construction of supporting and lead pipe shed supporting work in tunnel with whitewashing equipment. Special functions of the multifunction drill carriage are as follow: foundation anchoring, pipe shed supporting in tunnel, fan anchoring for side wall or circum of tunnel, lead geological forecast in tunnel, rock core fetching, constant drilling in rock layer, jet grouting, GSHP construction, pipe shed grouting or waterproof grouting in tunnel construction, side slope anchoring, vent hole construction, channeling hole construction in tunnel, horizontal gas vent, vertical water well and supply well construction, coalpit gas vent construction, opencast hard rock crushing, foundation anchoring, grouting, mini-pile construction, blasthole drilling on riverbed or seabed, drilling with casting, blasthole drilling on cover layer, soft ground improving, bridge pier/pile foundation strengthening, reteintion wall underground of structure, waterproof curtain-wall treatment of dam foundation, waterproof treatment for reservoir impounding reservoir.
Multifunction drill carriage
Drill depth
Drill diameter
Maximum propulsion
Maximum lifting force
Maximum drill height
Length of single drill pipe
Maximum torque
T1200 rotating mechanism + D21 hydraulic hammer (percussive rotary power unit)
Maximum RPM of power unit
Maximum torque of power unit
MWP
Maximum impact frequency
Maximum impact power
Drill efficiency
Hydraulic hammer working, applies to hard rock crushing. Effective depth of drilling hole within 30m/h. Time per working cycle.
Drill bit diameter
Drill pipe diameter
Drill pipe depth
Geological condition normal soft supporting broken
surrounding rocks
Net drilling time
Pipe changing/connecting time
Pipe adjusting/positioning time
Sum