In this study, structural stability of large diameter high density polyethylene (HDPE) pipe during installation was numerically investigated in order to investigate the effect of concrete collar dimension, water depth and tension (pulling force). From the numerical simulation results, the total stress of HDPE pipe with designed concrete collar was within 2.5%, so the total weight of concrete collar for sinking of HDPE is important rather than concrete collar dimension. Furthermore, the tension area for possible installation is decreased as the air filling rate is increased. Therefore, it is important to calculate the reasonable tension range before actual installation for safe installation of HDPE pipe.

1. 서론
2. 부유 및 하강에 의한 해양설치
3. 콘크리트 칼라 설계예제
4. 결 론
감사의 글
References

• 송현배(포스코엔지니어링 과장) | Song, Hyun-Bae
• 김도균(PETRONAS 공과대학교 교수) | Kim, Do-Kyun
• 최한석(포항공과대학교 교수) | Choi, Han-Suk
• 박규식(포스코 전문연구원) | Park, Kyu-Sik Corresponding author