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http://dx.doi.org/10.7744/cnujas.2013.40.3.253

Clogging behavior of recycled aggregates and crushed stone as horizontal drains in soft ground  

Lee, Dal-Won (Department of Agricultural and Rural Engineering, Chungnam National University)
Noh, Jae-Jin (Department of Agricultural Engineering, Chungnam National University)
Publication Information
Korean Journal of Agricultural Science / v.40, no.3, 2013 , pp. 253-260 More about this Journal
Abstract
In this study, laboratory model test carried out to present the suitable range of particle size distribution and clogging behavior of recycled aggregates and crushed stone as horizontal drains in soft ground. The recycled aggregates and crushed stone showed clogging phenomenon because the top fill material and bottom clay inflow into the horizontal drains. The pp mat was the most effective method to minimize clogging phenomenon. The horizontal coefficient of permeability in case of installing the pp mat showed largely 2.1 times more than the case of not installing. When the pp mat is not installing, the thickness of fine grained soil inflow into the horizontal drains showed 6.7~13.3% range in top fill material and 3.3~6.7% range in bottom clay. Overall, the reduction of the discharge capacity by fine grained soil inflow showed small in recycled aggregates and crushed stone. Also, the appropriate criterion range of particle size distribution is presented to make use of a horizontal drains in soft ground on the basis of laboratory test.
Keywords
Recycled aggregates; Crushed stone; Clogging; Coefficient of permeability; Particle size distribution;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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