top slicing and cover caving

top slicing and cover caving

[′täp ‚slīs·iŋ ən ′kəv·ər ‚kāv·iŋ]
(mining engineering)
A mining method that entails the working of the ore body from the top down in successive horizontal slices that may follow one another sequentially or simultaneously; the overburden or cover is caved after mining a unit.