In 2015 CPH Mining & Civil completed a tailings dam raise project for BHP (Coal Projects). This project involved raising the existing embankments to enhance the dam’s capacity and structural integrity.
Key services provided by CPH for this project include:
Removal of existing features in the construction footprint
Excavation and preparation of embankment foundations
Placement and compaction of earthfill materials in three zones
Topsoiling, hydromulching, and seeding of the downstream batter
Reinstatement of the tailings pipelines on the crest of the raised embankments
Constructing the embankment raise using coarse coal rejects, 1B outer embankment, and 1A (clay) inner embankment.