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Related to overburden: Overburden pressure
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The overburden excavator is arranged on a roof of the top bank of mineral and works off the top overburden bench, using receding course with the upward digging, and pours out overburden rocks on work platforms of the ground pay horizons.
The CSUMX also features the unique Razorcut (TM) design, which allows for the casing shoe to begin cutting right out of the box, even in overburden.
Displacing overburden by bulldozer, excavator or surface miner is rational if overburden thickness is less than 10 meters.
Rilling could not be initiated on 5 of the overburden plots (Curragh, Goonyella Norwich Pk tertiary, Wandoan, and Blackwater overburdens) at the maximum flow rates used in the laboratory (1.
But trees grow well in blasted rock, provided the right overburden is selected and is left uncompacted.
Removal of overburden at Kundara Mines and Mulavana
Chemical reduction of the copper overburden layer can be performed prior to the CMP step to decrease the overburden thickness and can result in a significant reduction of the CMP process time and consumables.
closely-spaced overburden sampling over the ten targets identified on these
Topsoil is a scarce resource in the Hunter Valley and revegetation directly into overburden also takes place.
Bayan would operate a large scale of its dozer push in Indonesia for the initial phase of the overburden mining, president director Eddie Chin said.
We didn't have the technology before to see anomalies under the heavy overburden, so there are some areas which may have mineral potential," Calhoun says.