30-60-90 % progress on model layout in EPC companies in an integrated manner
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30-60-90 % progress on model layout in EPC companies in an integrated manner

The 30-60-90 percent model development approach in EPC (Engineering, Procurement, and Construction) projects is a widely adopted methodology to progressively develop and refine 3D models. This approach helps ensure systematic development, review, and validation of project designs.

Overview of the 30-60-90 Percent Model Development

30 % model

Objective: To establish the conceptual design and basic framework of the project.

Scope: Basic geometry and layout of the project. Preliminary placement of major equipment and structures. Initial identification of major routes for piping, ducting, and electrical conduits.

Review and Validation: Ensures the project's overall feasibility. Major design decisions are made. Identification of potential issues or conflicts.

60 % Model:

Objective: To develop a more detailed and refined version of the project design.

Scope: Detailed placement and sizing of all major equipment. Detailed routing for piping, ducting, and electrical systems. Structural components and supports are more accurately modelled. Inclusion of secondary components and systems.

Review and Validation: Focus on resolving conflicts and clashes. Verification of compliance with design standards and codes. Ensuring that the design aligns with project specifications and requirements.

90 Percent Model:

Objective: To finalize the design, incorporating all remaining details and refinements.

Scope: Final placement of all components. Detailed annotations and specifications for construction. Inclusion of all necessary clearances and access points. Finalized routing for all systems, including insulation and supports.

Review and Validation: Comprehensive review to ensure no conflicts or errors. Final validation against project requirements and regulatory standards. Preparation for construction documentation and procurement.

Benefits of the 30-60-90 Percent Approach

  1. Systematic Progression: Ensures that the design develops in a controlled and systematic manner, reducing the risk of errors and rework.
  2. Early Detection of Issues: Allows for early identification and resolution of design conflicts and issues, minimizing delays and additional costs.
  3. Stakeholder Involvement: Facilitates regular reviews and feedback from stakeholders, ensuring that the design meets their expectations and requirements.
  4. Improved Coordination: Enhances coordination among various engineering disciplines, leading to a more integrated and cohesive design.
  5. Better Resource Allocation: Helps in efficient allocation of resources by breaking down the design process into manageable stages.

Implementation of the 30-60-90 Percent Model

To effectively implement this progressive model development approach, EPC companies can adopt the following practices:

  1. Use of Advanced 3D Modelling Software: Utilizing sophisticated 3D modelling tools like AutoCAD, etc to create detailed and accurate models. However, neither of these have multiple discipline analytical capabilities.
  2. Regular Review Meetings: Conducting regular review meetings at each stage (30%, 60%, 90%) to gather feedback and make necessary adjustments.
  3. Collaborative Platforms: Implementing collaborative platforms that allow multiple teams to work on the model simultaneously and share real-time updates.
  4. Standardized Procedures: Developing standardized procedures and checklists for each stage to ensure consistency and completeness of the model.
  5. Training and Development: Providing training to team members on the use of 3D modelling tools and the importance of adhering to the 30-60-90 percent approach.

Conclusion

The 30-60-90 percent model development approach provides a structured and efficient way to develop 3D models in EPC projects. By ensuring systematic progression, early issue detection, and improved coordination, this methodology helps in delivering high-quality, accurate, and detailed project designs. Implementing best practices and leveraging advanced tools can further enhance the effectiveness of this approach, leading to successful project outcomes.

How many of you actually agree 30-60-90 is an effective approach of executing large scaling engineering projects in accelerating project lifecycle?

How many of you would actually like to have it all on a single integrated platform ?

Jason Hetherington

Director Global Capital Project Management at Archer Daniels Midland Company

4 个月

Great article Ashwini. Well said in a abbreviated method that shows the importance of 3D modelling and the proper evolution of a project.

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