Equipment and Instrumentation to Improve Prediction of Near Surface Seafloor Soil Properties by Geophysical Measurements
Abstract
The purpose of the project was to acquire laboratory and field research equipment to aid the Navy in improving techniques to predict the geotechnical properties of near-surface seafloor soils by geophysical measurements. The field test equipment has been setup and is in operation. Two field penetrometers were purchased with built-in sensors to measure downhole S-wave velocity and resistivity in the soil. A specially outfitted push platform utilizing hydraulic earth anchors was purchased along with a Skid-steer loader. The push platform was connected to the Skid-steer and has been tested and calibrated in the field at a test site. A graduate student is continuing to work with the PI on a project related to the field equipment operation and testing. The laboratory equipment has been setup and is in operation within CSULA's Geotechnical laboratory. The resonant column/torsional shear device to measure S-wave velocity and damping, and the triaxial device to measure P-wave velocity has been setup and calibrated. The equipment manufacturer provided training on the operation and maintenance of the equipment. The PI has hired a post-doctoral student who is currently using the equipment to correlate geophysical parameters with strength properties in sands and clay.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 29, 2016
- Accession Number
- AD1063546
Entities
People
- Mark Tufenkjian
Organizations
- California State University, Los Angeles