[KSCI] Korea Science Citation Index Service

Comparison of Saturated and Unsaturated Water Flows through Pavement Systems

Lim, Yu-Jin (배재대학교 건설환경공학과)
Hue, Nguyen Tien (배재대학교 건설환경공학과)

Publication Information

Journal of the Korean Society of Hazard Mitigation / v.9, no.3, 2009 , pp. 9-17 More about this Journal

Abstract

Most of the current drainage criteria have been developed on the basis of experimental field results and theoretical analyses of infiltration under saturated conditions. The objective of this study is to extend the understanding of pavement drainage systems by considering unsaturated condition in the sublayers. Analyses of unsaturated flows through pavements was performed by running finite element program(SEEP/W) with a range of pavement materials and drainage parameters. Meanwhile, the widely used DRIP program developed by FHWA is based on assumption of saturated condition of pavements. Differences between saturated and unsaturated condition in the sublayers of the pavements are verified. It is verified that for unsaturated conditions time to drain would take longer time compared to saturated condition.

Keywords

Pavement Drainage; Finite Element Analysis; Permeability; Unsaturated Flow; Soil Water Characteristic Curve; Infiltration;

Citations & Related Records

Reference

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