Field Test of Thermal Precompression

by Tuncer B. Edil, (M.ASCE), Univ of Wisconsin-Madison, Madison, United States,
Patrick J. Fox, (A.M.ASCE), Univ of Wisconsin-Madison, Madison, United States,

Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments


A new concept for improvement of soft ground using moderate heating to control post-construction settlement is presented. The long-term creep behavior of a peat is presented based on laboratory oedometer tests involving step-stress and step-temperature changes. Field evidence with regard to the effect of temperature on one-dimensional creep of peat deposits is given based on the performance of two test fills, one of which is equipped with a ground heating system. The feasibility of thermal precompression as a method of accelerating in situ settlement has been discussed.

Subject Headings: Field tests | Thermal effects | Soil settlement | Soft soils | Structural settlement | Soil stress | Thermal loads | Construction management

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