A Flume for Assessing Flux Boundary Characteristics in Rainfall-Induced Slope Failure Studies
Rahardjo, H
School of Civil & Environmental Engineering, Nanyang Technological University, Singapore.

Lee, TT
School of Civil and Environmental Engineering, Nanyang Technological University, Singapore

Leong, EC
School of Civil & Environmental Engineering, Nanyang Technological University, Singapore.

Rezaur, RB
School of Civil and Environmental Engineering, Nanyang Technological University, Nanyang Avenue, Singapore

(Received 11 July 2002; accepted 16 June 2003)

Abstract
Rainfall-induced slope failure studies and slope hydrological behavior studies often require an assessment of the flux boundary characteristics of a slope. However, quantification of the flux boundary conditions across a slope surface with respect to rainfall, runoff, and infiltration is difficult. This paper introduces the design and field installation of a flume for high resolution monitoring of runoff data from a small catchment, particularly for rainfall-induced slope failure studies. The features of the flume include reliable and continuous runoff measurement at high resolution, options for accommodating various flow rates as dictated by the slope size, and portability. The flume can be used to quantify the flux boundary conditions required for seepage analyses associated with rainfall-induced slope failure studies.

Keywords:
data logger, depth probe, flume, infiltration, rainfall, rainfall-induced, rainfall-induced slope failures, runoff

Paper ID: GTJ11503
DOI: 10.1520/GTJ11503

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Author Rahardjo, H Affiliation School of Civil & Environmental Engineering, Nanyang Technological University, Singapore. Author Lee, TT Affiliation School of Civil and Environmental Engineering, Nanyang Technological University, Singapore Author Leong, EC Affiliation School of Civil & Environmental Engineering, Nanyang Technological University, Singapore. Author Rezaur, RB Affiliation School of Civil and Environmental Engineering, Nanyang Technological University, Nanyang Avenue, Singapore Author Rahardjo H, Lee TT, Leong EC, Rezaur RB Title A Flume for Assessing Flux Boundary Characteristics in Rainfall-Induced Slope Failure Studies Symposium , Committee on