Innovative Design And Solutions For Mine Water
Management On An Alluvial Floodplain
Author(s)
B. Tite & T. Reedman
Abstract
The Curragh North coal mine is located on an alluvial floodplain of the
Mackenzie River, in central Queensland, Australia. The catchment area at the
mine site is 50,000 km2 and the site had been inundated during previous floods.
Until recently, development of the site had not proceeded due to flooding and
water management risks and the difficulties involved in overcoming these risks.
PB’s innovative design provided solutions to two problems which were
deemed critical to the project’s viability, namely a sustainable water supply for
the mine and cost-effective flood protection. A holistic design approach was
used to address the project’s water supply and water management challenges:
• daily water balance modelling of the mine water management system to
maximise on-site water harvesting;
• design of a two-way pipeline to enable exchange of water to and from
an existing final void, reducing evaporative losses and on-site dam
infrastructure requirements;
• creation of dams within reshaped spoil piles to maximise the water
harvesting potential as the mine expands;
• design of controlled release points to allow spills to the Mackenzie
River only when the river flows are between set limits.
Keywords: water management, harvesting, hydrologic modelling, mining.
1 Introduction
The Curragh North coal mine is located 200 km west of Rockhampton in central
Queensland, Australia. Wesfarmers Limited won the right to develop the coal
deposit and contracted PB to design the mine’s civil infrastructure.
Keywords
water management, harvesting, hydrologic modelling, mining.
Related Book
Other papers in this volume
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