Spoil Heap

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spoil heap

[′spȯil ‚hēp]
(mining engineering)

Spoil Heap


a pile for stacking waste rock brought to the earth’s surface from mines and pits. At coal mines, as a rule, flat spoil heaps are built; conical, ridge, and sector spoil heaps are also known. Spoil heaps are classified according to the mode of transporting the waste rock; waste rock may be hauled by skip hoists, cableways, conveyors, trucks, rail transport, or hydraulic means. In order to minimize damage to the environment, spoil heaps are reclaimed in two stages—a construction stage that involves the leveling or grading of slopes and the placing of a fertile layer of soil on the surface and a biological stage that entails the sowing of grass and the planting of shrubs and trees.

References in periodicals archive ?
Considering inhomogeneity and tessellation of ecotopes that form in these condition, an important instrument for solving these geo-ecological problems is an express assessment of the state of vegetation mantle, which is forming in the radius of ore mining spoil heaps, as well as the development of effective methods of industrial ecotopes' phytoremediation.
Yorkshire-based RecyCoal, which recovers coal from disused mines and waste spoil heaps before selling it to energy providers, expects revenues of more than pounds 60 million over four years from the site at Rossington, near Doncaster.
The model results are applicable to both soils and large spoil heaps (where the surface area of the sides is small compared with the top of the heap).
The NRW is seeking small to medium-sized cost-effective measures to help remediate or mitigate pollution from metal mine sites, with suggested approaches able to tackle mine water discharges, spoil heap pollution or contaminated sediment issues, or combinations of all three.
The royal couple's visit was their fourth since the disaster of October 21, 1966, when a colliery spoil heap collapsed on the village, killing 116 children and 28 adults.
In October 1966, 144 people died in the village when a colliery spoil heap collapsed onto homes and a school.
Stones placed haphazardly at odd angles tend to resemble a spoil heap rather than creating a natural looking effect.
Easington District Council is being urged to back the scheme at a former colliery spoil heap off the A19 at Murton.
The course was set out around the crown of the reclaimed spoil heap on the site of the old Bedlington "D" Doctor Pit colliery, so riders racked up a fair bit of climbing.
An informal planning hearing in Guisborough in April saw dozens of people voice their fears over the effect the "monster" turbine may have on the landscape and the area's heritage - particularly the sheave wheel and spoil heap at Kilton Lane.