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논문 기본 정보

자료유형
학술저널
저자정보
김형주 (군산대학교 토목공학과) 원명수 (군산대학교 토목공학과) 이장백 (군산대학교 토목공학과) 박태웅 (군산대학교 토목공학과)
저널정보
한국복합신소재구조학회 복합신소재구조학회논문집 복합신소재구조학회 논문집 제6권 제3호
발행연도
2015.1
수록면
86 - 94 (9page)

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초록· 키워드

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A series of injection and drainage test were conducted on an circular acrylic tube to investigate the pressure generated by the accumulated fill materials inside a circular acrylic tube structure. The acrylic tube was filled by means of gravity filling with a slurry material having an average water content of 700%. The water head during the filling process was 1.8m and the bottom pressure during initial filling was 20.18kPa. The recorded stress at the sides of the acrylic tube was 17.89kPa during the filling process and was reduced to 13.58kPa during the leaving process. Continuous drainage of the acrylic tube has greatly influenced the stresses around the tube structure. As the water is gradually allowed to overflow, the generated pressure at the topmost pressure sensor of the tube was reduced further to 2.17kPa. Eventually, the initially liquid state slurry material transforms into plastic state after water has dissipated and substantial soil particles are deposited in the acrylic tube. The final water content of the deposited silt inside the acrylic tube after the test was 42%. It was found that the state of stresses(geo-static earth pressures) in the acrylic tube was anisotropic rather than isotropic.

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