Event | MIDAS MasterClass 110

What You will Gain

Available On-Demand: December 11, 2024 - December 15, 2024

1. Comprehensive TBM Force Analysis
- Explore the mechanical forces exerted by TBMs during excavation and their influence on tunnel stability.

- Understand how to analyze cutterhead pressures and shield thrust forces to predict and mitigate potential failures.

Example:

- Case: Shield Tunnel under High Groundwater Pressure
In a metro tunneling project beneath a river, excessive groundwater pressure caused significant challenges in TBM operations, leading to uneven load distribution and segmental lining damage. This webinar explains how advanced numerical modeling was used to predict and control these forces, ensuring project safety and efficiency.

2. Advanced Design Methodologies
- Learn to design segmental linings that can withstand TBM-induced stresses and adapt to varying soil conditions.

- Tackle challenges such as ground subsidence and segment misalignment.

Example:

- Case: Urban Shield Tunneling in Dense Areas
During a city center project, tunneling through soft clay resulted in ground subsidence, risking structural damage to nearby buildings. By applying optimized lining design and TBM adjustments, the team successfully minimized settlement, a process that will be discussed in this session.

3. Real Case Studies
- Gain insights from actual projects where TBM operations faced complex ground interactions, and advanced modeling techniques resolved critical issues.

Example:

- Case: Tunnel Boring Through Mixed Ground Conditions
A highway tunnel project encountered varying soil layers, including hard rock and soft clay. These contrasting ground types caused uneven TBM forces, leading to machine wear and delays. Learn how innovative dual-mode TBM technology and force simulations were used to overcome these challenges.

4. Cutting-Edge Solutions
- Dive into the use of predictive tools to simulate TBM operations and segmental lining behavior.

- Understand how software solutions optimize tunneling performance and prevent common failures.

Example:

- Case: Shield Tunnel Crossing Below Existing Infrastructure
In a project where a shield tunnel had to cross beneath an existing rail line, excessive TBM thrust forces risked deformation of the ground and structural instability. Advanced numerical simulations helped recalibrate the thrust parameters, preventing disruptions to the rail operations.

Why These Cases Matter

These real-world examples highlight the typical challenges faced in shield tunneling projects and demonstrate how the methodologies covered in this webinar can provide practical, actionable solutions. By understanding the lessons learned from these cases, attendees will be better equipped to address similar issues in their own projects.