APPLICATION OF UNSATURATED SOIL MECHANICS IN CAPILLARY BARRIER SYSTEM
This paper explains the application of unsaturated soil mechanics in the working principle of capillary barrier system. Capillary barrier is a soil cover consisting of a fine-grained soil layer overlying a coarse-grained soil layer.The mechanism of capillary barrier system is based on the contrast in the unsaturated hydraulic properties (soil-water characteristic curves and permeability functions) of the materials.The effectiveness of capillary barrier system could be quantified by its water storage capacity, water storage recovery, diversion capacity, and diversion length. To illustrate the application of unsaturated soil mechanics,experimental results of a one-dimensional capillary barrier column and a two dimensional capillary barrier model are presented in this paper. In order to design an effective capillary barrier system, an understanding of unsaturated soil mechanics is imperative. Material selection, climatic condition, and drainage availability are also important in the design of capillary barrier system.
Harianto Rahardjo Henry Krisdani Eng-Choon Leong
School of Civil & Environmental Engineering, Nanyang Technological University, Singapore
国际会议
南京
英文
127-137
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）