Interference of an upstream pier on local scour at downstream piers

• Autorzy: Khaple S. , Hanmaiahgari P. R. , Gaudio R. , Dey S.

Identyfikatory

DOI

10.1007/s11600-017-0004-2

• Języki publikacji: EN

Abstrakty

EN

In this study, three kinds of pier arrangements were tested. They are (i) two piers in tandem, (ii) two piers in staggered arrangement, and (iii) three piers in symmetrically staggered arrangements. In the arrangement of two piers in tandem, the equilibrium scour depth at downstream pier decreases with an increase in downstream distance up to approximately eight times pier diameter and then increases with further increase in downstream distance. However, the scour depth at downstream pier is always smaller than that at upstream pier. In the arrangement of two staggered piers, the scour depth at the downstream pier for L/b = 4, where L is the offset distance and b is the pier diameter, is the same as that of the upstream pier at S = 8b, where S is the streamwise spacing or distance between piers. Further, for three piers in staggered arrangement, as the lateral spacing between downstream piers increases, the equilibrium scour depth at downstream pier decreases.

Słowa kluczowe

EN

bridge piers; erosion; local scour; pier interference; scour

PL

filary mostu; erozja; rozmycie dna

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2017
• Tom: Vol. 65, no. 1
• Strony: 29--46
• Opis fizyczny: Bibliogr. 37 poz.

Twórcy

autor

Khaple S.

• Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India

autor

Hanmaiahgari P. R.

• Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India

autor

Gaudio R.

• Dipartimento di Ingegneria Civile, Università della Calabria, RendeItaly

autor

Dey S.

• Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India

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