Jointly organised by
Tunnelling & Underground Space Technical Division, IEM and
Institution of Civil Engineers (ICE) Student Chapter, University of Malaya


SYNOPSIS

This talk presents some concepts of dewatering and groundwater control in underground related works. This class of problem is getting to be very challenging due to proximity of existing buildings, stringent project requirements and complex geological conditions. A brief survey of dewatering techniques and control of groundwater inflow will be discussed.  In some cases, pretreatment designed and tested may be meeting the design objectives, however, the reality of the performance may not measure up to the desired expectations during the works. This may lead to undesirable impacts and the need to improve the situation at the site. To address the above concerns more elaborate methods of treatment to curtail or eliminate the problems will have to be carried out. Some specific methods of control will be briefly discussed.


BIODATA OF SPEAKER

Ir. Dr Ooi Lean Hock graduated with PhD from University of Sydney, Australia. In the past he has worked as a geotechnical consultant and a specialist contractor. He is currently the lead geotechnical engineer in the Design and Technical Department of MMC GAMUDA KVMRT (T) Sdn Bhd for the second line of Klang Valley Mass Rapid Transit from Sg Buloh – Serdang - Putrajaya (SSP) Line. He has extensive experience in ground treatment works, more recently in deep excavation and tunneling works. He also has a keen interest in geotechnical instrumentation and testing. He has been involved in many interesting infrastructural projects such as railways, runways, highways, tunnels and hydropower both locally and abroad.