Tunnel Look Ahead Development for Singapore MRT Tunnelling Works

by Mr. Tan Yun Zhou, Cambridge Sensing Pte Ltd

Thursday, 17 April 2025 // 7.00 - 8.30 pm

ABSTRACT:

Tunnel Boring Machines (TBMs) face challenges in urban environments due to complex geology and congested underground spaces. This webinar introduces a high-resolution seismic look-ahead method that addresses these challenges without requiring cutterhead access or through-lining drilling. Using finite-difference wavefield simulations, the study demonstrates how seismic waves can travel ahead of the TBM and reflect from anomalies, where they are recorded by geophone arrays. The method was validated with seismic data from three Singapore MRT construction sites - C882, C885, and T316 - showing its reliability when compared to borehole logging data and TBM excavation parameters. This tunnel look-ahead system offers significant advancements in enhancing tunnel safety and efficiency, particularly in complex urban environments.

ABOUT THE SPEAKER:

Tan Yun Zhou is the Senior Engineer at Cambridge Sensing Pte Ltd, specializing in tunnel lookahead technology for construction. With a Master's in Geophysics from Imperial College London, he has extensive experience in projects involving Ground Penetrating Radar; seismic surveys, and 3D laser scanning. Yun Zhou is part of a team developing tunnel lookahead systems for the Land Transport Authority (LTA) in projects C882, C885 and T316. Cambridge Sensing, known for pioneering SmartBoring Tunnel Look-Ahead technology in collaboration with LTA and NUS, focuses on urban geophysics to improve urban development. Yun Zhou has represented the company at conferences, and their research won the Best Poster Award at the 2023 ACUUS World Conference.

REGISTRATION:

-         All webinars will remain FREE.

-         However, those attendees who are NON-MEMBERS but want to get the attendance email to claim for PDU/STU points will be required to pay SGD15 per point.

-         All members who have paid your membership fees will get your attendance email for FREE. 

To register, please visit the following link.