Raise Boring En Australia 57726p
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RAISE BORING EN AUSTRALIA RUC Cementation Mining Contractors AUSTRALIA
HOME ABOUT RAISE BORING MINING EMPLOYMENT
Fleet Options RUC Cementation Mining Contractors is able to supply a range of Raise Boring equipment, with the expertise and experience to tackle any project, anywhere in the world. Quick Navigation BOX HOLE BORING ROBBINS 53R RAISE BORING INGERSOLL RAND RBM7ROBBINS 61RROBBINS 71RROBBINS 83RROBBINS 85RWIRTH HG330STRATA 850STRATA 950
Fleet > Raisebore Conventional Pilot Drilling
A Tri-cone pilot bit is normally used varying from 9 inches (229mm) to 15 inches (381mm). The 15 inch (381mm) bit is normally used on long holes with a 12⅞ inch (327mm) integral drill steel string with 10⅛ inch DI 42 tool ts.
Conventional Up-reaming of Pilot Hole
On completion of pilot drilling and at such time that the pilot hole breaks through into the lower excavation, a reaming head is attached to the end of the drillstring. The size of the reaming heads range between 1.2 metres and 7.1 metres in diameter.
It is a safe, efficient and cost-effective method of making holes through different geological formations with the use of powerful machines, high strength drillstring and reliable reamer heads. The maximum loading capacity of the drillstring limits the diameter as well as the length of the shaft. The loading is dynamic and only approximately calculateable as tensile, torsional and bending stresses are overlapping.
Down Boring with a Pre-drilled Pilot Hole
In this case an oversize pilot hole is drilled. The cutting head is installed at the top of the pilot hole and drilling takes place in the downward mode. Rock cuttings are flushed down the oversize pilot hole to the bottom of the hole where it is removed. The down boring method is not used often as the risk of blocking the pilot hole and creating mud rushes at the bottom of the hole is high.
Raise Boring offers a safe, efficient and cost-effective method of making holes through different geological formations.
Raisebore Rigs in Australia
Robbins 61R
RBM7
Robbins 71RE
Robbins 83RE
Robbins 85RH
Wirth HG330
Strata 850
Strata 950
Raisebore Capability Chart (Adobe Acrobat Format)Enlarged Capability Chart
HOME ABOUT RAISE BORING MINING EMPLOYMENT
Fleet Options RUC Cementation Mining Contractors is able to supply a range of Raise Boring equipment, with the expertise and experience to tackle any project, anywhere in the world. Quick Navigation BOX HOLE BORING ROBBINS 53R RAISE BORING INGERSOLL RAND RBM7ROBBINS 61RROBBINS 71RROBBINS 83RROBBINS 85RWIRTH HG330STRATA 850STRATA 950
Fleet > Raisebore Conventional Pilot Drilling
A Tri-cone pilot bit is normally used varying from 9 inches (229mm) to 15 inches (381mm). The 15 inch (381mm) bit is normally used on long holes with a 12⅞ inch (327mm) integral drill steel string with 10⅛ inch DI 42 tool ts.
Conventional Up-reaming of Pilot Hole
On completion of pilot drilling and at such time that the pilot hole breaks through into the lower excavation, a reaming head is attached to the end of the drillstring. The size of the reaming heads range between 1.2 metres and 7.1 metres in diameter.
It is a safe, efficient and cost-effective method of making holes through different geological formations with the use of powerful machines, high strength drillstring and reliable reamer heads. The maximum loading capacity of the drillstring limits the diameter as well as the length of the shaft. The loading is dynamic and only approximately calculateable as tensile, torsional and bending stresses are overlapping.
Down Boring with a Pre-drilled Pilot Hole
In this case an oversize pilot hole is drilled. The cutting head is installed at the top of the pilot hole and drilling takes place in the downward mode. Rock cuttings are flushed down the oversize pilot hole to the bottom of the hole where it is removed. The down boring method is not used often as the risk of blocking the pilot hole and creating mud rushes at the bottom of the hole is high.
Raise Boring offers a safe, efficient and cost-effective method of making holes through different geological formations.
Raisebore Rigs in Australia
Robbins 61R
RBM7
Robbins 71RE
Robbins 83RE
Robbins 85RH
Wirth HG330
Strata 850
Strata 950
Raisebore Capability Chart (Adobe Acrobat Format)Enlarged Capability Chart
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