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Cut and fill mining is a method of short-hole mining used in steeply dipping or irregular ore zones, in particular where the hanging wall limits the use of long-hole methods. The ore is mined in horizontal or slightly inclined slices, and then filled with waste rock, sand or tailings. Either fill option may be cemented with binders to add ...
A mass haul diagram where land and rock cuts are hauled to fills Fill construction in 1909 Cut and fill software: view from above. In earthmoving, cut and fill is the process of constructing a railway, road or canal whereby the amount of material from cuts roughly matches the amount of fill needed to make nearby embankments to minimize the amount of construction labor.
In shrinkage stoping, mining proceeds from the bottom upwards, in horizontal slices (similar to cut and fill mining), with the broken ore being left in place for miners to work from. Because blasted rock takes up a greater volume than in situ rock (due to swell factor ), some of the blasted ore (approximately 40%) must be removed to provide ...
The mining method used is underhand cut and fill mining. [ 3 ] The mine's primary access and production are through the Silver Shaft, an 18-foot (5.5 m) diameter, concrete-lined shaft sunk to a depth of 6,200 feet (1,890 m), [ 4 ] [ 5 ] [ 6 ] over 2,800 feet (855 m) below sea level .
First, the deposit is "undercut", where a slot is cut as deep as possible along the bottom of a section of ore. This undercut allows for a manageable pile of rock in later stages. The second step is the drilling and blasting of the section. This creates a pile of ore that is loaded and hauled out of the mine—the final step of the mining ...
In that case, earthwork software is principally used to calculate cut and fill volumes which are then used for producing material and time estimates. Most products offer additional functionality such as the ability to takeoff terrain elevation from plans (using contour lines and spot heights ); produce shaded cut and fill maps; produce cross ...
Yanacocha, like most modern gold mines, uses a process called cyanide-heap leaching to extract tiny bits of ore from rock. Mining engineers begin by blasting apart hills and other formations, creating deep pits. Each truckload that leaves the pit contains roughly 180 tons of rock and dirt — and about 8.5 ounces of gold.
Surface mining of zinc is typically used for oxide ores, while underground mining yields zinc sulfide ores. [12] Some of the common methods of zinc mining are open pit mining, open stope, and cut and fill mining: [12] [8] [13] [14] Open-pit mining: Surface mining involves the removal of waste rock from above an ore deposit before it can be ...
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