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由于地埋管周围岩土体状况的复杂性及由此导致的回归分析时统计性误差影响等原因,根据现有岩土热物性传热模型及热响应试验不能精确求解岩土热物性。探讨了消除解释变量性质影响的岩土集总热阻分析方法,并通过计量学误差分析体系进一步建立了岩土集总热阻计量模型,摆脱了相关不确定扰动的复杂影响,将这一传热问题转变为热工计量分析问题,根据逐时集总热阻即可计算出在各种进出口温度及初始土壤温度条件下的逐时单位管长换热量。以多个工程实测结果验证了该模型及其求解体系的有效性。
Due to the complexity of the geotechnical conditions around the buried pipe and the resulting statistical errors in the regression analysis, geothermal thermo-physical properties can not be accurately solved according to the existing geothermal heat transfer models and thermal response tests. The analytical method of geothermal heat resistance to eliminate the influence of the explanatory variables is discussed. The geotechnical thermal resistance metrology model is further established through the metrological error analysis system, and the complex influence of the uncertain perturbation is removed. Thermal problems into thermal measurement and analysis of the problem, according to the time-accumulated luminosity can be calculated in a variety of import and export temperature and initial soil temperature under the condition of the unit-time tube length heat transfer. The effectiveness of this model and its solution system are verified by the measured results of several projects.