CHANCE®helical piles (compression) and anchors (tension) are an instant foundation system that features
real-time tracking of the torque-to-capacity ratio during installation. This helical foundation system is segmented
with helical bearing plates welded to a central steel shaft. Load is transferred from the structure through the shaft to
the soil through the bearing plates.
High load capacities and lateral stability in weak surface soils
can be achieved by utilizing the Helical Pulldown™ Micro pile system
Foundation Technologies, Inc. has developed a comprehensive family of centralizing
devices for most applications of foundation pile and drilled shaft construction. ShaftSpacer ® system guide and alignment products have built-in quality control keeping
reinforcing steel in its proper position during concrete replacement. From drilled
shafts with sizeable steel cage to auger-cast piles with single bars, the ShaftSpacer®
and Unispacer™ family of centralizers can help keep you on-line and in a positive
"Negative skin friction" or "downdrag" are terms defining forces on piles installed through soil deposits
undergoing consolidation. These forces reduce the usable capacity of the piles installed, and should be
seriously considered when the ultimate capacity of the pile foundation is evaluated. The negative shaft
resistance is the reverse of the usual positive resistance developed along a pile's surface. These
negative forces increase the axial load on the pile and can be significant.