Bachelor in Engineering, Chulalongkorn University, Bangkok, 1972. Master of Science in Civil Engineering, University Washington, Seattle, 1973. Doctor of Philosophy in Civil Engineering, Oregon State University, Corvallis, 1976.
Professor Chulalongkorn University, since 1985, director Continuing Education Center, 1997—2004, dean Faculty Engineering, 2004—2008. Chairman Energy Regulatory Commission, since 2008.
Board directors Metropolitan Water Work Authority, Bangkok, 1988—1996, Mass Transit Authority of Thailand, 2001—2002, Transport Company, Thailand, 2005—2006, Provincial Waterwork Authority, Thailand, 2006—2008. Chairman Council Engineering Deans of Thailand, 2006—2007. Fellow: Engineering Institute Thailand (life Best Paper award 2003).
Member: American Society of Civil Engineers, Bangkok Royal Sport Club (life).
Married Supatra Boonyaprapat. 1 child Disapat.