In this study, we suggested the jacking method of small diameter sewer pipe for improving workability of the pipe at the weak ground. The jacking method minimizes the space and time in constructing small diameter sewer pipe. In addition, to use this method do not cause road restrictions during the construction period. In this study, the construction process of the small diameter sewer pipe is explained. In addition, to ensure the safety during construction, the design consideration such as earth pressure and the jacking force of the steel pipe, and safety against boiling of the ground were examined. For verify the safety of this jacking method, it is necessary to carry out an experiment to estimate the safety of main pipe under construction.

ABSTRACT
 1. 서 론
 2. 소구경 하수관 추진공법
 3. 시공안전성 검토
 4. 결 론
 References

• 주형중(㈜아이시스이엔씨) | Joo Hyung-Joong
• 정남진(세진특허법률사무소) | Jeong Nam-Jin
• 신연경(한동건설(주)) | Shin Yeon-Kyung
• 김정균(㈜로뎀건설) | Kim Jung-Kyun