Cavern construction by combined leaching process

Solution mining a cavern in salt: Direct and indirect solution mining methods

The adjacent solution mining animation shows two different leaching methods; direct and indirect leaching.

The direct method makes it possible to concentrate the solution mining process in the lower part of the planned cavern.

The indirect method is used to focus leaching on the upper part of the planned cavern.

Using both methods alternately enables the size and shape of the cavern to be constructed in accordance with the planning specifications.