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Session 17A: Construction & Alternate Delivery - Livestream
1:15pm - 2:45pm
1:15pm - 2:00pm
Digital Delivery - "Tools" For Optimized Project Delivery, Not "Gadgets" Of The Future
Slayden Constructors Inc., United States of America;
Picture a time prior to the advent of cell phones, where only calls were made from a stationary telephone, and thankfully “selfies” were not a thing yet. Fast forward to 2021, and now we carry around a computer device that is more advanced than NASA’s computer used in 1969 to launch The Saturn V Rocket, thus putting a man on the moon.
This analogy can be applied to the evolution of Virtual Design & Construction. Where we once had a 2D design delivered on paper, we now have and 3D model that serves as the foundation for most water projects today. However, the over-arching challenge is unlocking the full utility of having a 3D design model and validating its use as the primary communication & data storage tool.
To meet this challenge Slayden Constructors strategically deploys state-of-the-art modeling, visualization, tools in a cost-effective, field-tested practice we refer to as Digital Delivery.
This presentation will provide an overview of several digital construction practices being deployed on our projects that have positively impacted project delivery performance in terms of cost, schedule, quality, and safety. These include the following –
Digital Design & Constructability Review - Utilizes 3D models and immersive technology (VR/AR) to review constructability, and plant operation in preconstruction.
Digital Design & Trade Coordination - Integrates BIM design models and multi-discipline trade models to analyze for clashes and potential alignment issues to resolve in advance of potential rework.
Digital Survey – Using reality data capture methods such is Laser Scanning, and Drone Photogrammetry to stream real-time, accurate site data from the project to all stakeholders and clients.
Digital Construction Rehearsal – Applying 4D software to identify conflicts and challenges in the construction sequence so that planning can be optimized before starting work at the jobsite.
In conclusion, we will be showcasing our latest projects and demonstrating that these “gadgets” are actually battle-tested tools & workflows that we use concurrently throughout the project life cycle. We will also walk through the challenges of getting to the ultimate goal of delivering a valuable digital asset for the client and operations staff.
2:00pm - 2:45pm
Startup and Commissioning of Biological Nutrient Removal Facilities
William Leaf, Stephanie McGregor
Jacobs, United States of America;
The startup and commissioning of biological nutrient removal (BNR) systems can be one of the more challenging aspects of a Water Resource Recovery Facility (WRRF) project. Proper design, coordination, and scheduling is required for an efficient commissioning phase, ensuring the unit processes work on day one of operation. Startup and commissioning of a WRRF project is one of the most important phases, where the respective unit process, associated equipment, instrumentation, and communication system must all work together as intended to achieve the project goals. Use of predictive tools leading into the commissioning phase can greatly increase the odds of success of this complicated endeavor.
The presentation provides guidance on the best practices in starting up BNR facilities, bridging the gap between the traditional methods with the new control strategies and innovations available in the industry today. Any biological treatment system requires a level of acclimation prior to meeting the expected treatment performance, and this needs to be addressed to ensure the effluent quality from the facility is achieved throughout the duration of the commissioning phase. There are a number of strategies and approaches available to mitigate a reduction in effluent quality during unit process startup. Implementation of the SCADA system is a key component, requiring a systematic approach to allow a smooth transition for the integration of any updated control logic. Predictive tools are available in the industry to help prepare and address issues that may arise during startup, helping develop mitigation strategies before the actual startup and commissioning phase begins (e.g. – Replica™ control system integration and dynamic hydraulic simulator, whole plant process simulators). Incorporating WRRF operations and maintenance staff in the startup planning and follow-on activities is critical to the success of the project, providing the necessary training together with hands-on operation of the new equipment and instrumentation. Lessons-learned from the recent startup and commissioning projects will be presented, highlighting actual challenges and associated mitigation steps at the respective WRRFs (Grants Pass, OR and Lahaina, HI will be used as reference projects).