Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilled Shaft Foundations for James River Crossing in Richmond, Virginia
The paper discusses load tests conducted at four test shafts. For each main river pier these included two Osterberg axial load cell (O-cell) tests conducted on sacrificial test shafts socketed into rock. The sacrificial test shafts had a reduced 1.37 m (54-inch) diameter rock socket — about 56 percent of the diameter of the permanent drilled shafts. Based on a maximum top-of-shaft settlement criterion of 25.4 mm (1 inch), the allowable unit end bearing capacity for the rock sockets was determined from the load tests to be 8.4 MPa (175 ksf). Allowable side friction values in the rock sockets were determined to be 144 kPa (3.0 ksf) for poor quality rock and 431 kPa (9.0 ksf) for moderate to good quality rock.
Drilled Shaft Foundations for James River Crossing in Richmond, Virginia
The paper discusses load tests conducted at four test shafts. For each main river pier these included two Osterberg axial load cell (O-cell) tests conducted on sacrificial test shafts socketed into rock. The sacrificial test shafts had a reduced 1.37 m (54-inch) diameter rock socket — about 56 percent of the diameter of the permanent drilled shafts. Based on a maximum top-of-shaft settlement criterion of 25.4 mm (1 inch), the allowable unit end bearing capacity for the rock sockets was determined from the load tests to be 8.4 MPa (175 ksf). Allowable side friction values in the rock sockets were determined to be 144 kPa (3.0 ksf) for poor quality rock and 431 kPa (9.0 ksf) for moderate to good quality rock.
Drilled Shaft Foundations for James River Crossing in Richmond, Virginia
Hartman, Jan J. (Autor:in) / Castelli, Raymond J. (Autor:in)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
Contemporary Topics in Deep Foundations ; 183-190
10.03.2009
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Drilled Shaft Foundations for the James River Crossing in Richmond, Virginia
| British Library Conference Proceedings | 2009
Interstate 895 Bridge, James River, Richmond, Virginia, USA
| British Library Online Contents | 2003
Recent Structures - Interstate 895 Bridge, James River, Richmond, Virginia, USA
| Online Contents | 2003
Design of Drilled Shaft Foundations for the Cooper River Bridge
| British Library Conference Proceedings | 2004