In this study, the 3D-analysis of multi-functional fishway with square form of underground passage and circle type of underground passage are carried out by SAP2000 soft ware.
In case of width 2m, 1m of vertical cross-section structure, the width 300mm× length 300mm and the width 1,000mm× length 400mm of square type were experimental parameters.
The structural analysis results show stress of square form passage for water pressure alleviation by % compared to that of a square form passage.
The stability of square type of concrete is more beneficial than that of circle type of concrete.

• 이영재(경북대학교 공과대학 토목공학과 교수, 공학박사) | Lee, Young Jae
• 이정신(경북대학교 건설환경에너지공학부, 박사과정) | Lee, Jung shin
• 김문기(티엘엔지니어링(주), 대표이사) | Kim, Mun Gi