Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Headcut Migration in Earthen Embankment Induced by Varying Sub-surface and Seepage State under Overflow
https://orcid.org/0000-0003-3826-6480
Abstract In this study, the effects of an erosion resistant (ER) layer underneath the embankment and the seepage state prior to overflow were investigated. In the model experiment, tracing the headcut location using an Radio Frequency Identification (RFID) system without stopping the overflow demonstrated that the existence of an ER layer has a significant effect on the headcut migration rate, with a decrease in depth to the ER layer from 4.5 to 1.5 cm, the migration speed increased considerably by 1.20–1.86 times that of the case without an ER layer. When prolonged immersion prior to overflow was allowed, with the increase in the intensity of seepage, the headcut migration rate also increased, and as time elapsed, the effect of ER layer became subservient, though the degree of dominance of the seepage throughout the overflow period is controlled by the ER layer position. Thus, seepage state during prolonged immersion and ER layer underneath embankment toe needs special design consideration.
Headcut Migration in Earthen Embankment Induced by Varying Sub-surface and Seepage State under Overflow
https://orcid.org/0000-0003-3826-6480
Abstract In this study, the effects of an erosion resistant (ER) layer underneath the embankment and the seepage state prior to overflow were investigated. In the model experiment, tracing the headcut location using an Radio Frequency Identification (RFID) system without stopping the overflow demonstrated that the existence of an ER layer has a significant effect on the headcut migration rate, with a decrease in depth to the ER layer from 4.5 to 1.5 cm, the migration speed increased considerably by 1.20–1.86 times that of the case without an ER layer. When prolonged immersion prior to overflow was allowed, with the increase in the intensity of seepage, the headcut migration rate also increased, and as time elapsed, the effect of ER layer became subservient, though the degree of dominance of the seepage throughout the overflow period is controlled by the ER layer position. Thus, seepage state during prolonged immersion and ER layer underneath embankment toe needs special design consideration.
Headcut Migration in Earthen Embankment Induced by Varying Sub-surface and Seepage State under Overflow
https://orcid.org/0000-0003-3826-6480
Abstract In this study, the effects of an erosion resistant (ER) layer underneath the embankment and the seepage state prior to overflow were investigated. In the model experiment, tracing the headcut location using an Radio Frequency Identification (RFID) system without stopping the overflow demonstrated that the existence of an ER layer has a significant effect on the headcut migration rate, with a decrease in depth to the ER layer from 4.5 to 1.5 cm, the migration speed increased considerably by 1.20–1.86 times that of the case without an ER layer. When prolonged immersion prior to overflow was allowed, with the increase in the intensity of seepage, the headcut migration rate also increased, and as time elapsed, the effect of ER layer became subservient, though the degree of dominance of the seepage throughout the overflow period is controlled by the ER layer position. Thus, seepage state during prolonged immersion and ER layer underneath embankment toe needs special design consideration.
Headcut Migration in Earthen Embankment Induced by Varying Sub-surface and Seepage State under Overflow
Billah, Md Masum (Autor:in) / Yagisawa, Junji (Autor:in)
2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
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