Mincon forepoling ring bit systems are used to drill canopy tubes or tube umbrellas to make tunnel excavation safe in weak ground conditions and overburden. These solutions can be drilled using either top-hammer jumbos or DTH drill rigs. Umbrella systems can be installed using steel casings between 12 and 18 metres in length, interconnected using Mincon-designed threads that allow for fast, easy connections – saving you time and money. Mincon’s forepoling casing systems inject grout through the casing, thanks to an arrangement of staggered grouting valves in the casing itself. This allows for secondary support to be formed, increasing safety and stability in the working area before further excavation of the tunnel, which is an essential requirement for a safe tunneling work environment. https://lnkd.in/dimZEzcq
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Excellent example of the Mincon 1,2m(48”) Horizontal casing system being used in challenging conditions.
Mincon’s horizontal drilling tools played an important role in New York City, where Bortech Company Inc performed the challenging task of drilling a 300-feet (91 m) tunnel for a natural gas pipeline under the most congested highway in the U.S. – the Cross Bronx Expressway. Watch the video to see how a 48” (1.2 m) diameter steel pipe was drilled using Mincon’s horizontal casing system, MP340 hammer and SA34 shock absorber, as well as Bortech’s 20-year experience of complex horizontal drilling. Learn more about Mincon’s products: https://lnkd.in/d9vep_s3 https://lnkd.in/dNBqWent https://lnkd.in/dPjnjcyr #geotechnicalcenter #thedrillerschoice #horizontaldrilling #bronx #newyork #usa
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Successful Installation of 114mm Top Hammer Canopy Tubes from Mincon Forepoling. Top hammer forepoling ring bit system and steel casing tubes are designed to be drilled with tunneling jumbos in an umbrella shape as secondary support in the tunnel roof. Weak ground and overburden must be strengthened by grouting through the casing and grouting valves into the ground. Mincon offers the full package with customized steel casings, threads and grouting holes or valves, as required by the tunnel design. Mincon Forepoling system https://lnkd.in/d-hgRkQa
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Installing 114mm Top Hammer casing from Mincon Forepoling. Top hammer forepoling ring bit system and steel casing tubes are designed to be drilled with tunneling jumbos in an umbrella shape as secondary support in the tunnel roof. Weak ground and overburden must be strengthened by grouting through the casing and grouting valves into the ground. Mincon offers the full package with customized steel casings, threads and grouting holes or valves, as required by the tunnel design. Mincon Forepoling system https://lnkd.in/d-hgRkQa #forepoling #tunnelling #canopytube #tubeumbrella #mincon
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Installing 76mm Top Hammer casing from Mincon Forepoling. Top hammer forepoling ring bit system and steel casing tubes are designed to be drilled with tunneling jumbos in an umbrella shape as secondary support in the tunnel roof. Weak ground and overburden must be strengthened by grouting through the casing and grouting valves into the ground. Mincon offers the full package with customized steel casings, threads and grouting holes or valves, as required by the tunnel design. Mincon Forepoling system https://lnkd.in/d-hgRkQa #forepoling #tunnelling #canopytube #tubeumbrella #mincon
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