The project is nearing 90% completion on the design and will be going out to bid fairly soon. Our A/E firm had a subsurface site investigation performed, which provided SPT blow counts, standard proctor data, PI, and moisture content along the pipe alignment and other excavation areas.
Our...
The Caterpillar Performance Handbook and the Corps of Engineers use siesmic wave velocites to help determine the type / size of excavation equipment needed to excavate a given soil. Does anyone know of other methods to help determine what equipment will be necessary to excavate "hard"...