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By Daniel C Brown
An Oregon excavating contractor has found that a 2D guidance system improves productivity of an excavator by 30 percent when cutting slopes to a precise grade. About a year ago, Pihl Inc., a grading and excavation contractor based in Banks, OR, bought the Power Digger Pro guidance system from Leica Geosystems and fitted it onto a Kobelco 235 excavator. The system features a display screen in the cab that shows actual bucket position relative to the design grade. “The guidance system has done a very nice...... continue reading
From: Grading and Excavation Contractor Topics: Excavating, Excavators, Stabilizing
By Walt Moore
Quick. If you’re a contractor who requires employees to work in excavations, what are the only two situations in which OSHA (Occupational Safety and Health Administration) will give you a pass on providing cave-in protection? The answer is: 1) If the excavation is made in “stable rock” (which OSHA defines as “natural solid mineral material that can be excavated with vertical sides and will remain intact while exposed”); or 2) if the excavation is fewer than 5 feet deep and “examination of the ground by ...... continue reading
From: Grading and Excavation Contractor Topics: Excavating, Safety, Stabilizing
By Sue Salzwedel
Barely a month after the ink dried on Atlas Copco’s strategic alliance with Casagrande USA Inc. to distribute its full line of geotechnical drills in the USA, the first Casagrande rig found its home with Earthcore Services in Pottstown, PA, an eight-year-old company specializing in geotechnical work. Today, Earthcore operates 17 various geotechnical drill rigs, including rigs like the Atlas Copco ECM 370, the company’s most profitable rig to date. The Casagrande M9-1 is Earthcore’s first new rig and fir...... continue reading
From: Grading and Excavation Contractor Topics: Equipment, Excavating, Stabilizing