Information Details


Circular No: M&P/122/10/JY

5 October 2017 

Requirements on Bored Tunnelling Works

The Building and Construction Authority (BCA) is introducing the control framework of safety requirements for bored tunneling works, aiming to mitigate risks associated with bored tunneling works in order to ensure structural stability of buildings and structures and public safety. The requirements are applicable to projects involving tunneling works carried out using Tunnel Boring Machines (TBM) under the category of Geotechnical Building Works (GBW).

Please find attached circular for more information for compliance by Qualified Persons (QP), Accredited Checkers (AC), site supervisors, builders and developers with immediate effect.

For further clarification, please feel free to contact BCA Er Dr Poh Teoh Yaw or Er Kong Tze Foong at 1800-3425222 or email at