Tension Pile Test

by James A. Mason, California Dep of Transportation, Sacramento, United States,

Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation


The California Department of Transportation is conducting FULL SCALE AXIAL LOAD TESTS of 34 piles. This research project/proof test is being jointly conducted by public agencies (Caltrans and F.H.W.A.) and five private companies. Twelve of the test piles are Caltrans Standard Plan piles. The other twenty-two piles are proprietary systems being installed by the respective companies. The test investigates two conditions; 1) Pure Adhesion, i.e., piles installed only in deep Bay Mud, and 2) Adhesion plus founding in non-cohesive material. Three major topics are discussed in this paper; 1) the current Caltrans design methodology for piles in very soft Bay Mud, 2) the Tension Pile Test, 3) inclusion of the test results into Caltrans design.

Subject Headings: Pile tests | Load tests | Full-scale tests | Axial loads | Soil tests | Load and resistance factor design | Tension members | California | United States

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