A new construction method is analysed,that is to construct a dam for intercepting flood and storing water in the earlier stage of a project,and pouring water into the thrown pole for consolidation,and sinking soil into water to add to the dam by using directional blasting.As is verifyed by a gully correction project named Madihao in WulanCabu league of the Inner Mongolia.The problems showing in the construction and theory of the technology are analysed.So do the treatment method of these problems.