Pile foundation systems
Deep foundation. (2008, April 14). In Wikipedia, The Free Encyclopedia. Retrieved 19:44, April 18, 2008, from http://en.wikipedia.org/w/index.php?title=Deep_foundation&oldid=205520756
Also called drilled piers or Cast-in-drilled-hole piles (CIDH piles) or Cast-in-Situ piles. Rotary boring techniques offer larger diameter piles than any other piling method and permit pile construction through particularly dense or hard strata. Construction methods depend on the geology of the site. In particular, whether boring is to be undertaken in ‘dry’ ground conditions or through water-logged but stable strata – i.e. ‘wet boring’.