A water stop wall / hexagate plug (HGP) has been adopted for the Chubu No. 7 trunk line.
六菱ゴム
The Fukuoka City Water and Sewer Bureau has adopted the Hexa Gate Plug (hereinafter referred to as HGP) for the construction of the sewer system in the Fukuoka (Imaizumi 2-chome 2) outer area (Contractor: Ando Hazama). This project is part of the "Rainbow Plan Tenjin," a rainwater drainage facility development plan aimed at preventing flooding damage due to expected guerrilla rainstorms in the Tenjin area. The project involves the construction of a rainwater conduit, and this HGP is installed as a temporary wall within the existing Chubu No. 7 main line, where the inspec-through line (shield method) connects, protecting the shield arrival section from rainwater.
