WIT Press


Preliminary Experimental Tests Of Local Erosion At River Piers With A Particular Shape

Price

Free (open access)

Paper DOI

10.2495/RM090231

Volume

124

Pages

10

Page Range

247 - 256

Published

2009

Size

435 kb

Author(s)

L. Ciaravino & G. Ciaravino

Abstract

In the present study early experimental tests concerning local erosion phenomena have been carried out on a particular shape of the already effective circular piers in order to determine if any improvement is verified in their shape coefficient (with a corresponding decrease in scour). In particular, the circular pier foundation has been shaped as a truncated cone, partially or totally sunk into the mobile bed. In the experimental tests a preliminary comparison has been effected between scour at uniform circular pier and non-uniform piers with two different values of bevel angle β for the truncated cone foundation. Experimental results have shown that, for both values of β, the scour depth has been lower than that identified in experimental tests conducted on circular piers of the same diameter but without the truncated cone foundation. This interesting results open up an encouraging research field. Keywords: local erosion, river piers, shape effect, experimental test.

Keywords

local erosion, river piers, shape effect, experimental test