Shahe aqueduct is a main controlling project in the Middle Route of South-to-North Water Diversion Project.The aqueduct body is the structure of prestressed reinforced concrete beam with high flow,large span,long line and poor site conditions,so that the construction scheme is especially important.The analysis and discussion has been done with three typical construction methods of Shahe aqueduct in the Middle Route of South-to-North Water Diversion Project in this paper,and especially the two mechanical con...