The sewage pipeline project in the inner ring of the East Fifth Ring Road (Dayangfanggou~Xiaotaihou River) in Chaoyang District, Beijing. The starting point is the current sewage pipeline in Dayangfanggou and the end point is the Xiaotaihou River D1200 sewage pipeline. The newly-built sewage pipeline D1200mm length is 3876.8 m. Pipe jacking construction is adopted for the whole line, crossing the Fifth Ring Road ramp, Beijing-Tianjin Intercity Railway, etc.