Impacts of magnitude and texture of variable sediment supply on bedload transport

Zhou, Qihang; Wang, Lu; Li, Qiang; Ma, Xudong; Nie, Ruihua

doi:10.1007/s11600-024-01364-w

Artykuł - szczegóły

Tytuł artykułu

Impacts of magnitude and texture of variable sediment supply on bedload transport

Autorzy

Zhou Qihang , Wang Lu , Li Qiang , Ma Xudong , Nie Ruihua

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-024-01364-w

Warianty tytułu

Języki publikacji

Abstrakty

Sediment supply governs the bedload transport and bed morphology in rivers. Up to the present, the impacts of magnitude and texture of variable sediment supply (e.g., induced by flash flood from tributaries) on bedload transport are unknown, limiting the capacity of flood control and river management significantly. The present study conducted flume experiments to investigate the responses of bedload transport to variable sediment supply regimes with different peak supply rates and grain size distributions. The experimental results indicate that: the bedload rate and mass increase with increasing the peak rate of the variable sediment supply, and decrease with an increase in the proportion of coarse particles; the particles coarser than the median grain size of the supplied sediment D₅₀ are primarily stored in the bed, while those finer than D50 are mainly transported downstream; during the variable sediment supply process, the critical Shields stress of sediment has a similar development trend to that of the bedload rate but with a slight ahead of time.

Słowa kluczowe

bedload transport magnitude texture variable sediment supply

transport ładunków magnituda tekstura zmienna podaż osadów

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2025

Tom

Vol. 73, no. 1

Strony

593--602

Opis fizyczny

Bibliogr. 37 poz.

Twórcy

autor

Zhou Qihang

zhouqihang@stu.scu.edu.cn

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China

https://orcid.org/0000-0001-9814-822X

autor

Wang Lu

wanglu@scu.edu.cn

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China

https://orcid.org/0000-0003-3144-9989

autor

Li Qiang

sculiqiang@stu.scu.edu.cn

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China

https://orcid.org/0000-0002-6771-7116

autor

Ma Xudong

maxd@scu.edu.cn

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China

https://orcid.org/0000-0003-3565-8235

autor

Nie Ruihua

nierh@scu.edu.cn

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China

https://orcid.org/0000-0003-0255-4579

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-557b4e4e-b720-486d-a4f7-a62a64f6429d