Abstract: A double underreamed drilled shaft with 5 ft (1.5 m) diameter bells and 2.5 ft (0.8 m) diameter shaft was instrumented and load tested. Results of the load test indicate that the underreams act independently at very small ...

Abstract: The site of the 10‐story parking garage contained soft to medium consistency residual silty clays overlying carbonate rock formations. This rock contains numerous solution cavities and fracture zones with angles of dip ...

Abstract: Recommendations are presented for determining unit point and shaft resistances for precast prestressed concrete piles embedded in the Yorktown Formation, the bearing stratum for most major structures in tidewater Virginia. ...