방파제 내부 공동현상 적용을 위한 샌드매스틱 아스팔트 혼합물 시공성에 대한 수치해석

• 영문명: Numerical simulation of sand mastic asphalt workability for adaptation of repairing the cavitation in the breakwater
• 발행기관: 한국연안방재학회
• 저자명: 정효준(Hyo Jun Jung) 유형주(Hyung Joo Yoo) 양성린(Sung Lyn Yang) 이승오(Seung Oh Lee)
• 간행물 정보: 『한국연안방재학회지』제8권 제2호, 89~97쪽, 전체 9쪽
• 주제분류: 사회과학 > 사회과학일반
• 파일형태: PDF
• 발행일자: 2021.04.30

영문 초록

As a breakwater gradually becomes obsolete, it becomes vulnerable to loss of its original functions and finally occurs corruption due to cavitation, scours inside, etc. The mortar grouting method, which has been in general applied in many cases, would invoke serious issues such as coastal environmental pollutions because of spilled-out cement before curing on the near sea. Thus, the sand mastic that utilizes the mastic asphalt becomes focused on as a substitute. However, the related study is hard to find in the domestic literature. In this study, therefore, the workability of sand mastic when filling up the cavitation inside a breakwater was evaluated with a 3-D numerical model, FLOW-3D software. It was intended to propose the workability index (WI) of sand mastic based on the diffusion diameter. It has been shown that the temperature and the fractions of the asphalt are the most significant parameters on the rheologic characteristics of the sand mastic. As a result, it is recommended that the asphalt mixture above 16% and the initial temperature above 150℃ when applying with a breakwater with inside cavitation.

목차

1. 서 론

2. 연구방법

3. 수치해석 결과

4. 결 론

키워드

Sand mastic Cavitation Numerical simulation breakwater Diffusion diameter