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In this paper, considering the soil stratification and groundwater seepage, combined with the measured data, the fluid temperature inside the buried pipe and the thermophysical parameters of different layered soils are obtained through the calculation of the outer wall temperature of the buried pipe, so as to establish the heat transfer model of the buried pipe stratified according to the equivalent physical properties of the soil. The experimental results show that the strati–fied heat transfer model is closer to the measured value than the conventional homogeneous model, and the error is smaller; The average absolute error between the simulated outlet water temperature and the measured value is 0.21 °C, and the average absolute error between the simulated inlet and outlet heat transfer temperature difference and the measured value is 0.14 °C based on the equivalent physical properties of soil stratification, which has a high accuracy and can provide a basis for engineering design and serve as the basis for the subsequent optimization study of the buried pipe heat transfer.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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