Hatch
Hatch supplies engineering, project and construction management services, process and business consulting and operational services to the mining, metallurgical, energy and infrastructure industries.
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Mosaic Esterhazy K3 Mine

Model of the Esterhazy K3 mining complexMosaic’s Esterhazy mine is the largest potash mine in the world with an annual capacity of 5.3 million tons. Mosaic will establish the new greenfield K3 mining complex at Esterhazy to expand their current mining operations. This expansion project will add a further 1 million tons to their annual output.

The K3 complex will comprise two 20-foot diameter shafts sunk to a depth of approximately 3,700 feet below collar together with the necessary service shaft headframe and hoists, ventilation circuits and the associated surface infrastructure.

Sinking of shafts in Saskatchewan is challenging due to the various geological formations and water pressures at depth, requiring unique sinking and shaft lining methodology. These sinking techniques include ground freezing from surface down to a depth of approximately 1,600 feet. Temporary support of the shaft ground wall is installed during shaft sinking so as to control the hazard of rock falls. The permanent shaft liner construction consists of support concrete as well as composite steel liner where required to prevent water ingress. These construction activities are facilitated by means of working from a five-level shaft sinking galloway.

Scope of Services
Hatch completed the prefeasibility and feasibility studies and is providing EPCM services for the greenfield mining complex at Mosaic’s Esterhazy mine.

Project Highlights
The headframe will be one of the tallest headframes in the world. It will contain some of the largest Koepe hoists in the world (60 tons payload skips) to achieve the planned future production requirements.

Project Stats

Client:
Mosaic

Location:
Esterhazy, Saskatchewan, Canada

Start:
July 2009

Completion:
October 2015

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