Coherent Identifier About this item: 20.500.12592/whrp29

Guidelines for the Design of Abandoned Mine Land

17 March 2021

Summary

The particular chemical used at the site will be specific to the mineralogy of the ore deposit. [...] In the case of shafts, sealing often includes the placement of crushed rock in the shaft bottom to prevent migration of the fill material into the mine. [...] This allowed for the water that infiltrated or accumulated in the mine to the drain downdip to the entry and hence little water was impounded. [...] This is due to the fact that ferrous oxidation to the ferric state slows as the pH of the solution is lowered. [...] The nature of these loads is a function of the geochemistry of the mining site as well as the physical arrangement of the mining with respect to water and air infiltration to these geochemically active materials.

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133

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