• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.8-10
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• 2013

Inorganic binding material was made by recycled resource and its applicability as pile-filling material was examined. The result was that the material had same liquidity with the liquidity of OPC and high reactivity with site soil. According to dynamic/static loading tests by site test-construction, the inorganic binding material met both design bearing capacity and settlement. Since the inorganic binding material showed same or better performance than OPC, the utilization possibility of the inorganic binding material made of recycled resource as pile-filling material was verified.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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• pp.63-66
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• 2011

The aim of this study is to estimate the field applicability of PBFM to replace in-site soil with pile backfill used to replace the existing cement paste. As results, the flowability, segregation and bleeding, and bond strength of PBFM was a good performance than that of the existing cement paste. But the skin friction of pile by Pile Driving Analyzer (PDA) and compressive strength was slightly decreased than that of the existing cement paste. However, as pile backfill materials, and in terms of economics and environment, the applicability of PBFM is considered very effective.

• 한국농촌건축학회논문집
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• 제23권3호
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• pp.1-8
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• 2021

Rural multi-purpose buildings needs to ensure their safety against various disasters. Therefore, a pile foundation, which is a foundation type that can transmit the load of the structure to the bedrock layer, has been designed. The pile foundation method is largely divided into driving piles method and pre-bored pile method. Recently, in order to respond to the Noise and Vibration Control Act and related environmental complaints, construction of pile foundation adopts pre-bored pile method. The bearing capacity of the pre-bored pile method is calculated through a load test in situ. However, a disadvantage stems in that it is difficult to measure the ultimate bearing capacity due to field conditions. Therefore, in this study, the skin frictional force of pre-bored pile was measured through a model test in laboratory for each pile filling material. In result, the pile filling material with using circulating resources shows superior skin frictional force than ordinary portland cement. This study also judged that the result can be applied in place of ordinary Portland cement in the field.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 추계 학술논문 발표대회
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• pp.156-157
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• 2014

Inorganic binding material was made by recycled resource and its applicability as pile-filling material was examined. The result was that the material had same liquidity with the liquidity of OPC and high reactivity with site soil. According to dynamic/static loading tests by site test-construction, the inorganic binding material met both design bearing capacity and settlement. Since the inorganic binding material showed same or better performance than OPC, the utilization possibility of the inorganic binding material made of recycled resource as pile-filling material was verified.

• 한국지반환경공학회 논문집
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• 제12권1호
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• pp.61-70
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• 2011

충돌보호공은 해저지반에 깊게 근입되어 있으며 돌핀을 의미하는 상부는 단단한 콘트리트 뚜껑으로 막혀지고 쇄석으로 채워진 원형의 속채움 시트파일의 배열로 구성된다. 본 연구에서는 돌핀의 거동을 규명하기 위해 총 7회의 준정적실험과 11회의 동적 원심모형실험을 수행하였다. 주요한 실험적 결과는 다음과 같다. 우선, 준정적실험의 실험적인 힘-변위 결과는 채움재 강성과 관련된 채움 밀도의 변화로부터 구조물의 초기 강성에 대한 영향을 보여준다. 그리고 동일한 변위에서의 에너지 소산을 비교해보면 더 조밀한 채움에서 직경 20m 돌핀은 16%, 직경 30m 돌핀은 23% 정도 소산율이 증가하는 것으로 나타났다. 30m 직경의 돌핀이 더 큰 민감도를 갖는 것은 채움재의 변형률이 에너지소산에 대해 보다 크게 기여하기 때문이다. 동 정적 충돌실험결과, 일반적으로 동적 응답이 준정적 응답보다 26~58%까지 크고 더 작은 변위에서 에너지 소산이 발생되고 있음을 알 수 있다. 따라서 돌핀 구조물의 거동예측 시 준정적 응답특성을 사용하는 것이 보수적이라는 것을 알 수 있으며, 하부충돌 시 돌핀 저항력은 상부충돌 시와 동일하거나 더 우세한 것으로 나타났다.