Oskar Sigl
Tunnelling and Underground Construction Society (Singapore)

Dr. Sigl graduated 1985 from Technical University of Graz, Austria, in Civil Engineering specializing in geotechnics and soil mechanics. In 1991, after working for five years as Teaching Assistant at the Institute for Geomechanics and Tunnelling, Oskar achieved the PhD in mining engineering at the Mining University of Leoben, Austria.

Oskar was involved in the design of major underground structures in a great number of projects, such as subway tunnels, railway and road tunnels, underground storage schemes and caverns. With more than 25 years of tunneling experience, these projects cover a large variety of different ground conditions, foundation and construction methods ranging from hard rock to soft clay and from conventional drill and blast or Cut&Cover excavations to the use of tunnel boring machines and road headers.

Since his arrival in Singapore in 1997, Oskar has been involved in the detailed design of major projects in Singapore including underground constructions along the North East Line, Circle Line and Downtown Line MRTs, the Kallang Payar Lebar and Marine Costal Expressway, the DTSS Project, cable tunnels, etc.

In addition to the registration as Professional Engineer (PE-Civil), Oskar is also registered with the Professional Engineer Board of Singapore as specialized Professional Engineer (PE-Geo) and specialized Accredited Checker (AC-Geo).