846 assembly, and constructability engineering for its main components, all within a limited time window. The shutdown for this project was scheduled for 15 calendar days, specifically from 7 to 21 May 2021. Figure 1: Costs Associated with Plant Shutdowns (Adapted from Pulido J.) The project engineering was entirely developed in Spain, with key suppliers located in Sweden, Brazil, and Peru. The multidisciplinary project team operated in a multicultural environment, with Peruvian and Spanish professionals working remotely in 2020 due to the COVID-19 pandemic. These factors significantly increased the technical, logistical, and managerial complexity of the project, making the scope identification and definition process (see Figure 2) highly susceptible to disruption. Additional sources of variability included changes in shutdown dates, new COVID-19 protocols, operational changes, and logistical challenges due to the unavailability of components and/or spare parts. This paper outlines the implementation of the VDC methodology by a multidisciplinary team to establish collaborative management with an integrated approach, aiming to maximise value in project delivery to the O&M user—an approach that could be highly beneficial for similar projects. 2. OBJECTIVES The project posed a significant challenge not only due to the geographical conditions for its execution but also due to the need to enhance value in its delivery to improve satisfaction for the internal client or O&M user. This was particularly important given the background of similar brownfield projects delivered with high OpEx, poor maintainability, low reliability in construction timelines, and frequent safety incidents. a) Key Client or Project Objectives The project needed to ensure satisfaction from the O&M user to guarantee operational sustainability under new conditions in the crushing area: reducing crushing time from 22 to 16 hours per day. The goal was to achieve over 95% satisfaction from the O&M user and meet the intermediate milestone of delivering Basic and Detailed Engineering by 30 November 2020, providing a high-value, safe, and optimal simulation for the pre-construction, construction, and O&M stages. b) Role of VDC in Achieving Objectives VDC’s primary role in achieving these objectives was to establish a collaborative project management methodology with key stakeholders, particularly through early involvement of the O&M user in ICE sessions and the use of the BIM model in synergy with PPM. This approach improved preliminary design processes during Basic Engineering (BE) through an O&M lens and 4D BIM Planning during Detailed Engineering (DE) through a constructability lens.
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