UNDERGROUND MINE DEWATERING
Rapallo was engaged by a Junior Gold Mining company to dewater a disused underground mine to allow for re-entry and exploration.
(Tendering & Procurement)
Engineering Project Lead
The overall mine dewatering system consisted of two submersible bore pumps lowered 190m down into the existing mine vent rise, powered by two diesel generators, in order to pump mine water to the surface manifold. From the surface, approximate 4km of pipework and valving was installed along a bunded pipe routes to enable the water to be discharged into three available open pits for water storage. Assisted evaporation systems were installed in two locations to aid the limited available water supply capacities.
Rapallo was the overall engineering lead for the work, not only did our team schedule and manage the overall works of the project but we also did the Engineering design of the complete pumping system including:
- Re-establishment of the vent rise collar
- Pipework design, pump calculations
- Design of the bunded pipe route
- Design of scour pits
- Valving selection
- Assisted evaporation calculations
Additionally, Rapallo managed the pipework, valving and pumping suppliers, the entire tendering process, contract negotiations, and the mobilisation of all staff to site. Finally we also provided support throughout the entire construction process and managed the commissioning on site. The project was completed successfully on a very tight timeline to meet client objectives, with the system commissioning completed and many of the people involved flying home on Christmas eve!
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“The Goldfields Land & Sea Council (GLSC) Aboriginal Ranger program has partnered with Rapallo on a variety of environmental projects for mining proponents. Rapallo has a demonstrated understanding of the complex cultural dynamic of the Aboriginal community and has provided excellent project management and professional guidance to the Rangers, whilst also building in opportunities for shared learning. We look forward to developing this foundation as we expand on the services that Aboriginal Rangers can provide to the region into the future.”
~ Darren Forster, Land & Sea Management Officer, Goldfields Land & Sea Council (GLSC)
“Rapallo is a team of dedicated people. Very professional and responsive to changes and meeting tight deadlines.”
~ David English, Project Manager, Independence Group – Nova Project
"They have always supplied skilled and motivated labour hire personnel that fit in with our business. I would have no hesitation in engaging Rapallo on future projects and would highly recommend their services.”
~ Andrew Reilly, Manager Branch Operations Kalgoorlie, National Pump & Energy
“Keep up the good service and we will continue to utilize the company. I am now utilising Rapallo for all my sentry requirements onsite at BHPB NKC from now on. I will also be looking at utilizing more trades and other services at our site in the future if the situation arises.”
~ Michael Talbot, Maintenance Planner / Shutdown Coordinator
“We choose Rapallo to conduct our statutory classified plant inspection because of their professional service and engineering backup. Not only does Rapallo provide a timely and thorough inspection service, they can back up their recommendations with engineering solutions . All my interactions with Rapallo have been timely, professional and solutions driven. It is a pleasure to have Rapallo as our classified plant inspection vendor and I highly recommend their services.”
~ John Waddell, Maintenance Coordinator Darlot, Goldfields Australia
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If you have a project you’d like to discuss, please call us on (08) 6279 0900 or complete and submit the form below.