Method of reinforcing smectite slate in opencast mine pits

摘要

Stabilizing smectite shale may include treating smectite shale in a subterranean formation with a drainage fluid to obtain stabilized smectite shale, wherein the drainage fluid comprises an aqueous base fluid and a dewatering additive. In some cases, at least a portion of an embankment may be formed in an open pit mine at an embankment construction site comprising stabilized smectite shale.