Yah Lah But #672: The Truth Behind the Deepest Tunnel in SG & What People Get Wrong About Engineering
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Jun 4, 2025 Geoshua Tan, Vice President of Civil & Infrastructure Engineering at CPG Consultants, shares his journey in the engineering world. He reveals the mind-boggling challenges of constructing Singapore's Deep Tunnel Sewage System, including the intricacies of tunneling 50 meters underground. Geoshua also debunks common engineering misconceptions and emphasizes the importance of creativity and collaboration in the field. From childhood LEGO designs to modern tech innovations, his story highlights the emotional connections engineers forge with their projects and the need to inspire the next generation.
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Building Structures Since Childhood
- Geoshua's childhood involved playing with Legos and building small structures like mazes and bridges.
- This early passion reflected his natural inclination towards engineering and design.
Awe of Deep Tunnel Project
- Geoshua Tan worked on the Deep Tunnel Sewerage System (DTSS), a huge tunnel 50 meters underground.
- Seeing the massive tunnel and shaft in person was an awe-inspiring experience for him.
Test Technology Before Adoption
- Test new construction technologies on select projects before full adoption.
- Embrace advancements to improve efficiency but validate effectiveness first.