Seismic Stability Evaluation of Folsom Dam and Reservoir Project. Report 7. Upstream Retaining Wall

摘要

The man-made water retaining structures at the Folsom Dam and Reservoir Project, located on the American River about 20 miles upstream of the City of Sacramento, Calif., have been evaluated for their seismic safety in the event of a Magnitude 6.5 earthquake occurring on the East Branch of the Bear Mountains Fault Zone at a distance of about 15 km. The evaluation process involved extensive review of construction records, field and laboratory investigations, and analytical studies. This report documents studies of Retaining Wall B, a submerged retaining wall at the base of the Right Wing Dam upstream envelopment fill. It has been concluded that Retaining Wall B will perform satisfactorily during the design earthquake. (fr)