A very nice collection of photos of geotechnical failures, geotechnical construction projects and methods. Put together by Ross W. Boulanger at UC Davis and James Michael Duncan from Virginia Tech, Blacksburg.
The purpose of this manual is to guide TXDOT districts in geotechnical investigation and design for project development. Visit TXDOT Geotechnical Manual
A full service engineering firm with much experience in tunneling. Visit Hatch Mott MacDonald