In-Situ Testing to Characterize Electric Transmission Line Routes

by Craig J. Orchant, Cornell Univ, Ithaca, NY, USA,
Charles H. Trautmann, Cornell Univ, Ithaca, NY, USA,
Fred H. Kulhawy, Cornell Univ, Ithaca, NY, USA,



Document Type: Proceeding Paper

Part of: Use of In Situ Tests in Geotechnical Engineering

Abstract:

A review of the literature has shown few definitive studies which separate test variability from soil inhomogeneity. A sensitivity study was performed to evaluate the effects of the overall in-situ test variance on the uplift design of drilled shaft foundations. The results showed that the Standard Penetration Test leads to the highest uncertainty under both drained and undrained conditions for the tests included in the study. When combined with cost information, these results can be used to improve cost/benefit decisions in route characterization programs.

Subject Headings: Power transmission lines | Field tests | Penetration tests | Soil tests | Sensitivity analysis | Foundation design | Power transmission towers | Material tests

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