논문 상세보기
pp.101-107
Coal Ash, a byproduct of coal combustion in power plants, is usually disposed in surface impoundments or wet disposal areas and landfill sites. Toxic substances contained in coal ash which slowly seep into the groundwater and aquifers in nearby impoundments, and which are also dispersed by wind and storm water in landfill sites, lead to serious health and environmental effects. The main focus of this study is to analyze the strength characteristics of the recycled coal ash mixed with dredged soil to test its capabilities from external forces such as in the stacking of geotextile tubes. The SEM and XRF analysis were carried out in order to grasp the grain size and composition of the coal ash and the dredged soil. To find the optimum mixing ratio of the coal ash and dredge soil, the type of deformation and the strength of the different mixtures were obtained by performing a uniaxial compression test. The relationship between the compressive stress and deformation of the uniaxial compression test and the tubular structure formed by injecting the coal ash into geotextile tube was confirmed and the applicability of the geotextile tube reinforced with the recycled and improved fill material is very high.
2. 시험재료의 물리적 특성
2.1 구성입자의 입도 및 물리적 성질
2.2 다짐시험
3. 압축강도 특성
3.1 시료제작
3.2 압축강도 시험결과 및 분석
4. 지오텍스타일 튜브 구조체의 압축강도
4.1 바텀애시 주입 튜브 구조체 제작
5. 결 론
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