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To improve the seepage monitoring level of pumped storage reservoirs, a discrimination method was proposed for seepage caused by geomembrane aperture damage, based on a seepage-sensing structure and the concept of an equivalent seepage aperture . First, the temperature rise difference between dry and wet conditions was acquired through active heating, and a logarithmic linear fit was performed after normalizing the temperature rise difference with respect to the seepage velocity. Then, a linear fit was established between the seepage velocity and the equivalent seepage aperture. The seepage condition was inferred based on field calibration tests combined with the characteristics of distributed temperature sensing (DTS) curve. Finally, laboratory tests were conducted for validation. The results show that the goodness-of-fit (R2) between differential temperature and the equivalent seepage aperture exceeds 0.96, and the relative error of seepage velocity is below 5%. 86% of the residuals between experimental and simulated temperature rise values fall within ±1℃, and the relative error of seepage velocity also remains below 5%, demonstrating the reliability of the simulations.
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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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