Geotechnical investigations at strong-motion stations in the Imperial Valley, California

Technical Report · Wed Aug 01 04:00:00 EDT 1984

OSTI ID:5672847

Porcella, R L

This study involved investigations at Imperial Valley, California accelerograph stations, and was done because of the unique strong-motion data set recorded during the magnitude 6.5 earthquake of October 15, 1979. The project included the following investigations: (1) electronic cone-penetrometer soundings at nine stations; (2) drilling, sampling, and logging of 22 borings to depths of from about 30 to 244 m; (3) downhole P- and S-wave velocity surveys at 22 stations; (4) high-amplitude resonant column tests of undisturbed samples from several stations; and (5) numerous gamma, S-P, and resistivity logs and caliper and temperature measurements at selected stations. This study is part of a program to compile geotechnical data at selected locations in various regions and to use these data to make detailed comparisons of the geologic and seismic characteristics that will provide a means for quantitatively estimating strong ground motion at a given site and facilitate the development of seismic zonation techniques applicable to other regions. 29 refs., 13 figs., 4 tabs.

• Research Organization: Geological Survey, Menlo Park, CA (USA)
• OSTI ID: 5672847
• Report Number(s): USGS-OFR-84-562; ON: TI85901790
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580300* -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
CALIFORNIA
DATA
EXPERIMENTAL DATA
FEDERAL REGION IX
IMPERIAL VALLEY
INFORMATION
MECHANICS
NORTH AMERICA
NUMERICAL DATA
SEDIMENTS
SEISMIC P WAVES
SEISMIC S WAVES
SEISMIC WAVES
SOIL MECHANICS
USA
VELOCITY
WELL LOGGING