开发了一种通过原位测试确定土壤热性质的新方法。该方法基于一维数值传热模型，利用参数估计技术，根据现场采集的数据确定土壤导热系数和钻孔阻力。本文介绍了在内布拉斯加州林肯市进行的三次试验的数据分析结果，以验证该方法的有效性。发现一维方法与由相同数据集得出的线源和圆柱源热导率估计值吻合良好。该方法还能够测量三个钻孔换热器的阻力。测得的阻力在给定灌浆材料的预期阻力范围内。我们的方法的另一个好处是，它对短路引起的功率输入变化相对不敏感- 长期电压波动。单位:I-PCITION:研讨会，ASHRAE交易，第106卷，pt。1.

A new method of determining soil thermal properties from in-situ tests has been developed. Based on a one-dimensional numerical heat transfer model, the method uses parameter estimation techniques to determine soil thermal conductivity and borehole resistance from field-collected data. This paper presents the results of analysis of data from three tests performed in Lincoln, Nebraska, in order to validate the method. The one-dimensional method was found to agree well with line source and cylindrical source thermal conductivity estimates derived from the same data sets. The method was also able to measure the resistance of the three borehole heat exchangers. The measured resistances lie within the expected range of resistances for the given grouting materials. A further benefit of our method is its relative insensitivity to changes in power input caused by short-term voltage fluctuations.Units: I-P