Tailings Dam 1 & 2 Augmentation

Client: Xstrata Mangoola Coal

Cost: $2M

Capability: Mining Infrastructure

Location: Mangoola Coal

Duration: 16 weeks

Overview:

Xstrata Mangoola Coal required the raising of an existing embankment (previously constructed by KCE) and the construction of a new embankment to ensure sufficient tailings capacity.

Scope of work:

• 1.3 million bulk cubic meters placed and compacted for the TD1 and TD2 Augmentation project
• Spreading of rock fill using D10 & D9 dozers in 1m controlled lifts
• Compaction of rock fill using impact roller (5 sided drum)
• Supply and installation of decant pipework

Highlights and challenges:

• The works were coordinated to achieve strict compliance within the vertical and horizontal zones required for material placement
• Works were conducted in order to match the mining schedule. This necessitated both day and night shift work
• KCE had to program the works to spread and compact a minimum of 10 000 BCM per day
• Safety windrows were carefully managed to ensure the safe operation and delivery of material by operation's mine dump trucks during nightworks