OpenPlant Reduces Tetra Tech’s Isometric Generation Time by Two-thirds
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OpenPlant Reduces Tetra Tech’s Isometric Generation Time by Two-thirds - 1

CASE STUDY Project Summary Organization: Tetra Tech Proteus Solution: Mining Location: Tanami Desert, Australia Project Objective: • Increase throughput, recovery, and post-production for the brownfield plant supporting an underground gold mine. • Reduce environmental footprint of the expanded plant to lessen cultural impact on the Tanami Desert. Products Used: AECOsim Building Designer, Bentley Descartes, Bentley LumenRT, MicroStation®, Bentley Navigator, OpenPlant, Bentley Pointools, ProjectWise® Fast Facts • Tetra Tech implemented OpenPlant PID to convert legacy models and point-cloud data into working 3D models of the plant site. • The connected data environment available through ProjectWise allowed Tetra Tech to review comprehensive models for use of space, interferences, and safety hazards. ROI • Tetra Tech reduced the preparation time for each drawing by 35 resource hours, taking advantage of OpenPlant-AECOsim integration that enabled the transfer of intelligent data from 3D models to 2D drawing labels. • Using OpenPlant Isometrics Manager reduced isometric generation time from three hours to one hour per isometric, saving the owner about USD 250,000. • The expansion project improved the throughput of the Newmont Tanami gold mine processing plant from 2.3 to 2.6 million tons per annum. OpenPlant Reduces Tetra Tech’s Isometric Generation Time by Two-thirds Newmont Tanami Gold Mine Expansion Project Saves USD 250,000 with Bentley’s Interoperable Plant Design Software Expansion Boosts Throughput The AUD 65 million Tanami Expansion Project upgraded throughput for the Tanami gold mine, which is owned and operated by Newmont Tanami in the Northern Territory of Australia. The owner’s goal was to increase gold production while improving operational efficiency of the 20-year-old processing plant. As lead designer, Tetra Tech Proteus (Tetra Tech) designed a safe and efficient installation for additional equipment within the constrained footprint of the existing site. Bentley’s OpenPlant applications provided 3D modeling and isometric generation capabilities that saved the owner about USD 250,000. The new facilities boosted processing plant productivity from 2.3 to 2.6 million tons per annum and provided a safer way to produce backfill material that the site required. Legacy Plant Data Newmont Tanami took over the Tanami gold mine in 2002 under the aegis of its parent company, Colorado-based global gold producer Newmont Mining Corporation. Located some 540 kilometers northwest of Alice Springs, the fly-in, fly-out operation is in the remote Tanami Desert on Aboriginal freehold land owned by the Warlpiri people. It is an underground mine that produces 459,000 attributable ounces of gold annually. The owner wanted to increase throughput by about 10 percent and gold recovery by about 3 percent, as part of a plan to extend the life of the mine. plant downtime and on a tight delivery schedule. The scope of work also included infrastructure improvements such as expanding the accommodations village and improving the communications network. To retain a modest footprint in the sensitive desert environment, the owner wanted to avoid building the expansion alongside the existing plant. Instead, the company decided to demolish part of the old plant and make room for the new equipment in situ. This included a new ball mill, two gravity concentration circuits, a pre-leach thickener, an electrowinning cell, and a deslime and tailings filtration system. The owner provided 3D models of the existing plant that had been generated from multiple software platforms and were not up to date. The challenge was to convert this legacy information into a detailed plant model that could be modified to design the expansion. OpenPlant Automates Tasks One of the project team’s first tasks was to commission a laser scan of the existing plant. Tetra Tech saved weeks of redrafting time by using Bentley software to convert the outdated plant models and new point-cloud data into a current 3D model. The voluminous survey data provided an unprecedented level of detail. The project Increasing throughput meant team deployed OpenPlant upgrading and expanding among other Bentley equipment situated in tight Located some 540 kilometers northwest of Alice Springs, applications to develop quarters. Newmont Tanami Australia, the Tanami gold mine is an underground operation comprehensive 3D chose Tetra Tech Proteus, that produces 459,000 attributable ounces of gold annually. models, which were a Tetra Tech subsidiary and used to design all aspects of the expansion and make leading engineering services provider for the mining sector iterative modifications. Tetra Tech’s value engineering in Australia, to find a solution that was both space- and approach focused on identifying every opportunity for savings. cost-efficie

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OpenPlant Reduces Tetra Tech’s Isometric Generation Time by Two-thirds - 2

“Using OpenPlant Isometrics Manager to auto-generate piping isometrics reduced the time it would have taken to move labels around and make the isometric clearer to read. Tetra Tech reduced its isometric generation time from three hours to one hour per isometric. With over 1,500 isometrics, this saved the client around USD 250,000.” – Greg Short, Principal Process Engineer, Tetra Tech Proteus Find out about Bentley at: www.bentley.com Contact Bentley 1-800-BENTLEY (1-800-236-8539) Outside the US +1 610-458-5000 Global Office Listings www.bentley.com/contact OpenPlant automated multiple tasks,...

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