SYNOPSIS

Design of bored tunnelling and temporary works for deep excavation relies upon moderately conservative ground parameters and robust design solutions to limit movements of both the temporary works system and surrounding ground or structures to within acceptable limits. This is particularly true when working in the urban environment. Once major tunnelling works and excavation commences, effective construction control of the works is required to keep movements to within their limits.  Instrumentation plays a crucial role in the safe construction of temporary works.  The instruments monitor the construction movement and the results need to be precise and accurate to enable the construction works to proceed within a controlled manner. The instrumentation layout needs to be designed with careful consideration of the excavation and each instrument located with a specific purpose, to avoid the production of unnecessary and useless data.  This will lead to confusion during the interpretation of monitoring results. This course aims to give an overview on design, construction and effective instrumentation & monitoring of bored tunnelling and temporary works for deep excavation projects in Singapore.


SPEAKERS

1. Ir. Er. Dr. ONG Chee Wee, Victor is Managing Director of ONE SMART Engineering Pte Ltd and has 15 years of postgraduate working experience in consultancy, research and construction firms in Singapore and Malaysia. He is PE (Civil) registered with Board of Engineers Malaysia and ASEAN Chartered Professional Engineer. He is also a PE (Civil) as well as Specialist PE (Geo) registered with Professional Engineers Board (PEB), Singapore. He obtained his PhD in Geotechnical Engineering from the National University of Singapore (NUS). He has been a part-time lecturer at Singapore Building and Construction Authority (BCA) Academy, Singapore since 2007. Dr. Ong is currently serving on two International Technical Committees for International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) - Technical Committees TC 207 on Soil-Structure Interaction and Retaining Walls and TC 212 on Deep Foundations. He is recently elected as SPRING Singapore Technical Committee (15th Term) for The Standards Council (Civil & Geotechnical Works), 2011-2014. Dr. Ong is a recipient of Best Contribution Award in Asian Young Geotechnical Engineers Conference and The Hulme’s Prize Award by Tunnelling & Underground Construction Society of Singapore (TUCSS). He is a Qualified Person (Supervision) for Singapore MRT Downtown Line 3 C933 which the project is a recipient of Singapore Concrete Institute Excellence Award 2013 for the use of SFRC tunnel segments. He is also a registered Qualified Earth Control Professional (QECP) in which his project was selected by Public Utilities Board (PUB) Singapore as ECM Model Site in 2012. He is currently involved in KL MRT (UG1), Singapore MRT DTL1 and DTL3.

2. Er. NG Chew Chiat, David is Executive Director of ONE SMART Engineering Pte Ltd and has 15 years of postgraduate working experience in consultancy and research in Singapore. He is a PE (Civil) as well as Specialist PE (Geo) registered with Professional Engineers Board (PEB), Singapore. He graduated in 1999 with a Master Degree in Geotechnical Engineering from NUS where he received the Innovation Award and NSTB Gold Award for his outstanding academic results and research work. Er. David Ng has been awarded The Young Consulting Engineer of the Year 2013 by Association of Consulting Engineers of Singapore (ACES) and The First Prize of Hulme’s Prize Technical Paper Competition by Tunneling & Underground Construction Society of Singapore (TUCSS) in 2000, for his technical paper in tunnelling. Er. David Ng has published more than 35 technical papers in the field of geotechnical engineering. He has been elected as SPRING Singapore Technical Committee (15th Term) for The Standards Council (Civil & Geotechnical Works), 2011-2014. He is serving as a member in the Institute of Engineers Singapore (IES) Civil and Structural Technical Committee in the Geotechnical Division. Er. David Ng is also elected as the Council Member of the Tunnelling and Underground Construction Society of Singapore (TUCSS). He had been a member of the LTA Design Criteria and M&W Specifications Review Committee from 2002 to 2010. He has been involved in the planning, design, project management and instrumentation & monitoring of major infrastructure projects such as DTSS, KPE, CCL & DTL which involve deep excavation, mined tunnels and bored tunnels during his 15 years of working experience.