CONSTRUCTION METHOD FOR LONGITUDINAL PIPE STRUCTURE

摘要

PURPOSE: A construction method of a longitudinal pipe structure is provided to smoothly guide water for flowing into influent channel to a spiral guiding plate and to obtain excellent constructionability by corresponding to restrictions due to the large diameter and shape of a manhole. CONSTITUTION: A construction method of a longitudinal pipe structure comprises the following steps: installing a horizontal panel with an opening larger than the outer diameter of a longitudinal pipe (1) around the connection part of an influent channel (2) inside a manhole; inserting the longitudinal pipe and burying a gap between the opening and the longitudinal pipe with concrete; installing a concrete panel on a panel inside the manhole to be separated from the longitudinal pipe and installing a water introduction wall by allowing concrete to flow in at the same time; and opening a part of the longitudinal pipe in the upper side of the panel and forming an inlet to face the influent channel.