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- W2091219919 abstract "본 논문은 다양한 굴착조건으로 모형실험을 실시하여 흙막이 벽체 우각부 구간의 거동에 대해 분석하였다. 실험대상 지반은 느슨한 상태의 모래지반으로 구성되었다. 실험의 시공조건은 우각부 길이, 근입깊이, 버팀대의 시공 유 무 등으로 구분하고 굴착은 총 4단계로 굴착하였다. 각각의 시공 및 굴착조건에 대해 모형토조 내 설치된 계측기를 이용하여 벽체변위 및 지표침하를 중점적으로 분석함으로써 우각부 모서리의 거동특성을 규명하였다. 실험결과 우각부의 길이가 길어질수록 벽체변위와 지표침하가 증가되어 직선구간에 비해 우각부구간이 구조적으로 불안한 구간으로 분석되었다. 근입깊이가 길어질수록 우각부 모서리구간의 지표침하가 약 40% 억제되는 것으로 나타나 설계 시 예상치보다 근입깊이를 증가시켜 적용하는 것이 안정성 확보에 유리하였다. 버팀대 추가 설치하여 우각부 모서리구간의 거동을 분석한 결과 최대지표침하는 약 40%, 최대수평변위는 약 30%의 감소효과가 있어 설계 시 우각부 모서리 구간에 근입깊이의 증가와 함께 버팀대를 추가 설치하는 방안이 안정성 확보에 효과적이었다. The experiment of model soil structures has been executed for the soil retaining wall in various conditions of excavation, in this study, to analyze the behavior of the corner of opening. The ground for experiment has been constituted with the sandy soil of relatively loose density, the construction condition has been divided into the opening length of corner, embedded depth, existence of strut, etc., and the excavation has been carried out for 4 stages in total. The behavior characteristics at the corner of opening area has been verified by concentrate analysis of the displacement of wall and the subsidence of ground surface, for each construction and excavation condition, using the measuring instrument mounted inside the model soil structure. In the result of experiment, it has been analyzed that the opening area of corner is unstable structurally compared to the linear area, as it shows that the wall displacement and subsidence of ground surface have been increased when the opening length of corner gets longer. The longer the embedded depth, ground surface settlement of coner was decreased 40%. To apply deeper embedded depth than designed estimate was an advantage in the safety. As a result of the analysis of coner behavior with added struts, maximum surface settlement and maximum horizontal displacement was evaluated 40% and 30%, respectively. Hence increased embedded depth with the added struts in coner edge was effective in the safety." @default.
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- W2091219919 date "2013-06-30" @default.
- W2091219919 modified "2023-10-14" @default.
- W2091219919 title "An Experimental Study on the Settlement Characteristics of the Corner of Earth Retaining Wall According to the Ground Excavation" @default.
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- W2091219919 doi "https://doi.org/10.12814/jkgss.2013.12.2.055" @default.
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