Strength and Deformation Behavior of Frozen Saline Sand and Gravel

by Larry J. Mahar, Earth Technology Corp, Long Beach, CA, USA,
Brian J. A. Stuckert, Earth Technology Corp, Long Beach, CA, USA,

Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore


Construction of offshore oil and gas exploration and production structures often considers the use of either sand or gravel fill materials. Fill soils exposed to the environment will progressively freeze each winter, increasing the load carrying capacity of the fill. An extensive parametric laboratory study was conducted to determine the strength and deformation properties of frozen saline granular soil. Over 100 triaxial tests were conducted on both sand and gravel soil types. Tests were conducted to study the effects of temperatures, salinity, soil density, and strain rate on the mechanical behavior of the soil in unconfined axial compression loading. A summary of the results of these tests is presented along with a description of the experimental methods used.

Subject Headings: Soil strength | Soil deformation | Frozen soils | Fills | Salinity | Gravels | Construction materials | Offshore construction

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