Geotechnical and Strong Motion Earthquake Data from U.S. Accelerograph Stations. Volume 3. Gilroy, California (Gavilan College - C6), Logan, Utah (Utah State University), Bozeman, Montana (Montana State University), Tacoma, Washington (County-City Building), and Helena, Montana (Federal Building and Carroll College)

摘要

This is the third in a series of reports to investigate the subsurface soil conditions at selected accelerograph stations. Contained in this volume are the findings of site conditions at six accelerograph stations in the western U.S. These stations are located at Gilroy, California; Logan, Utah; Bozeman, Montana; Tacoma, Washington; and two sites in Helena, Montana. Subsurface conditions at the first four sites were investigated by means of deep borings, field geophysical testing, and laboratory testing of soil samples retrieved from the borings. Investigation of the Helena sites consisted of only a geologic reconnaissance since both accelerograph stations are founded on rock.