Seismic refraction studies at the Painter Street bridge site, Rio Dell, California

摘要: This report summarizes the results of seismic refraction P- and S-wave measurements, at site Painter Street bridge, in Rio Dell, California. The bridge is spanning highway US 101, 4 miles south Fortuna, northwestern study was performed to provide an estimate material properties for foundation support a stability analysis LLNL by D. McCallen. Dell region seismically active one only 2 bridges its type California, instrumented strong motion recordings. Measurements were made using 12-channel Geometric/Nimbus ES 1210 Signal Enhancement Seismograph. 3 refs., 21 figs., 1 tab.