The Development, Fabrication, and Evaluation of a Device for the Measurement of Thermal Properties of Soil

摘要

Statement of the Problem: (a) To design, develop, fabricate and evaluate a probe device embodying the line heat source concept for the in situ measurement of the thermal conductivities of soils; (b) to develop and evaluate the technique, using the probe device, for measuring the thermal conductivities of soils in situ; (c) to design, develop, fabricate, and evaluate a heated disk device based upon the contact principle for the in situ determination of the thermal diffusivities of soils; (d) to develop and evaluate the technique, using the heated disk, for measuring the thermal diffusivities of soils in situ. (Author)