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저회의 연직배수재로서 활용에 관한 연구

Title
저회의 연직배수재로서 활용에 관한 연구
Other Titles
A Study on the Utilization of Bottom Ash as a Substitute Material for Sand in Vertical Drain
Author
이영휘
Advisor(s)
천병식
Issue Date
2008-08
Publisher
한양대학교
Degree
Master
Abstract
본 연구에서는 화력발전소에서 산업폐기물로 부산되어 상당량이 폐기처리되고 있는 석탄회중 저회(Bottom Ash)의 연약지반 압밀촉진공법 중 하나인 Sand Drain의 모래대체재료로서의 활용성을 검토하고자 하였다. 이를 위해 실내에서 조성된 모형지반에 저회와 Sand를 배수재로 사용할 경우에 대한 과잉간극수압의 분포와 압밀침하량을 계측하여 배수효과를 비교 분석하였다. 심도별 과잉간극수압의 분포를 계측해서 평균압밀도를 분석한 결과, 압밀도 90%에 이르는 시간은 저회 Drain이 Sand Drain의 경우보다 다소 빠르게 나타나 소요 압밀도에 이르는 공기를 단축시킬 수 있을 것으로 판단되었다. 향후 저회를 연직배수재로서 다양한 현장에 적용하여 현장적용성을 높일 수 있는 신뢰성 있는 데이터 확보가 필요할 것으로 사료된다.; This paper presents whether coal ash(bottom ash) from thermal powerplants in Korea which is uselessly dumped into ash ponds as industry wastes is able to be utilized as a vertical drain materials for the acceleration of consolidation. For this, the effect of drainage was analysed by monitoring the distribution of excess pore pressure and the consolidation settlement on the model ground to which bottom ash and sand was applied as the drainage materials. Firstly, analysing the average degree of consolidation for depth by measuring the distribution of excess pore pressure, it was induced that t90 of bottom ash drain was somewhat faster than in case of sand drain. So it is considered that the time for available consolidation is able to be reduced by bottom ash drain. According to these results, It is concluded that bottom ash is sufficiently hoped to be improvement materials on the soft ground in the midst of the sea-shore's development. In the future, it is considered to require to ensure a reliable data that it can enhance a field applicability by using the Bottom Ash as a Vertical Drain Board in a various field.
URI
https://repository.hanyang.ac.kr/handle/20.500.11754/146613http://hanyang.dcollection.net/common/orgView/200000410080
Appears in Collections:
GRADUATE SCHOOL OF ENGINEERING[S](공학대학원) > ARCHITECTURE & CIVIL ENGINEERING(건축 및 토목공학과) > Theses(Master)
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