Multiflood and Multilayer Method for Scour Rate Prediction at Bridge Piers
Authors:
- 1 February 2001
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Geotechnical and Geoenvironmental Engineering
- Vol. 127 (2) , 114-125
Abstract
The SRICOS method was proposed in 1999 to predict the scour depth versus time curve at a cylindrical bridge pier for a constant velocity flow, a uniform soil, and a deep-water condition. In this article, the method is extended to include a random velocity-time history and a multilayer soil stratigraphy; it is called the Extended-SRICOS or E-SRICOS. The algorithms to accumulate the effects of different velocities and to sequence through a series of soil layers are described. The procedure followed by the computer program to step into time is outlined. A simplified version of E-SRICOS called S-SRICOS is also presented; calculations for the S-SRICOS method can easily be done by hand. Eight bridges in Texas are used as case histories to compare predictions by the two new methods (E-SRICOS and S-SRICOS) with measurements at the bridge sites.Keywords
This publication has 2 references indexed in Scilit:
- SRICOS: Prediction of Scour Rate in Cohesive Soils at Bridge PiersJournal of Geotechnical and Geoenvironmental Engineering, 1999
- Friction Factors for Pipe FlowJournal of Fluids Engineering, 1944