Lowland Technology International
Vol 12 No 2, Dec (2010)

EVALUATING STABILITY OF RIVERBANKS REINFORCED WITH ROCKFILL COLUMNS

W. F. Abdulrazaq (Unknown)
M. C. Alfaro (Unknown)
J. A. Blatz (Unknown)



Article Info

Publish Date
02 Dec 2010

Abstract

This paper presents the results of stability analysis of natural and stabilized riverbanks. Limit Equilibrium Method (LEM) and Finite Element Method (FEM) were used in the analysis. In the FEM, two approaches were employed: 1) combined LEM and FEM, and 2) FEM with the shear strength reduction (SSR) technique. The limit equilibrium method and the finite element method of stability analysis produced similar calculated factor of safety values. This provides confidence that either method estimates similar factor of safety values for natural and stabilized riverbanks. Based on the FEM analysis, it was shown that the centre-to-centre spacing between columns plays a major role in increasing the factor of safety. The calculated maximum shear strain in the stabilized riverbanks is reduced with a closer spacing rows. This is important since lesser slope displacements are required to mobilize the necessary shear resistance for closer rockfill column spacing.

Copyrights © 2010






Journal Info

Abbrev

ialt_lti

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Engineering Transportation

Description

The Lowland Technology International Journal presents activity and research developments in Geotechnical Engineering, Water Resources Engineering, Structural Engineering, Transportation Engineering, Urban Planning, Coastal Engineering, Disaster Prevention and Mitigation ...