20.500.12556/RUL-128466 Analysis of seepage in a laboratory scaled model using passive optical fiber distributed temperature sensor Seepage is the key factor in the safety of dikes and earth-fill dams. It is crucial to identify and localize the seepage excesses at the early stages before it initiates the internal erosion process in the structure. A proper seepage monitoring system should ensure a continuous and wide area seepage measurement. Here, continuous monitoring of seepage at the laboratory-scale is achieved by a passive optical fiber Distributed Temperature Sensing (DTS) system. An experimental model was designed which consists of initially unsaturated sand model, water supply, seepage outflow, optical fiber DTS system, and water and air temperature measurement. Initially, the sand temperature was higher than the temperature of the seepage water. An optical fiber DTS system was employed with a high-temperature resolution, short sampling intervals and short time intervals for temperature monitoring in the sand model. In the system, the small variation in the temperature due to groundwater flow was detected. The numerical analysis was conducted for both the seepage process and the heat transfer progression in the sand model. The results of the heat flow simulation were evaluated and compared with the measured temperature by the optical fiber DTS. Obvious temperature reduction was obtained due to seepage propagation in the sand. The rate of temperature reduction was observed to be dependent on the seepage flow velocity. seepage optical fiber DTS temperature saturation flow velocity hydrotecnics precejanje temperatura nasičenost hitrost toka hidrotehnika true false true Angleški jezik Slovenski jezik Članek v reviji 2021-07-14 11:13:00 2021-07-14 11:13:04 2022-09-07 04:15:21 0000-00-00 00:00:00 2020 0 0 16 str. iss. 2, art. 367 Vol. 12 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532:626/627 2073-4441 10.3390/w12020367 18390531 RAZ_Ghafoori_Yaser_2020.pdf RAZ_Ghafoori_Yaser_2020.pdf 1 37DC8C32643D4C1BC34642833ED886EC b3c627f9fdc58da08308f34a7890d5d75841575678f3157be7cbbafefda4941f cfb0fcfa-e483-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145214 https://www.mdpi.com/2073-4441/12/2/367 0 8cabb312-e483-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145213 Fakulteta za gradbeništvo in geodezijo 0 0 0