| 摘要 |
PURPOSE: A drainage trench installation method is provided to reduce man per hour by constructing a drainage way by concreting without form, brick, and angle installation works and additional drainage way construction works, to adhere the inside of the drainage way and the outside of the drainage trench firmly by forming the gradient of the drainage way without complicated works, to discharge sewage inside the drain trench installed to the drainage way easily, and to clean easily. CONSTITUTION: A drainage trench installation method comprises the steps of: installing a drainage trench(300) manufactured with stainless steel on a primary concrete layer(100) cured already, but adjusting the gradient of the drainage trench toward a drainage basin by a gradient regulator equipped to the outer both ends of the drainage trench and supporting the inner both ends of the drainage trench with a gap adjuster(340) to keep the width of the drainage trench; curing the surface of a secondary concrete layer(200) on the primary concrete layer by concreting on the outside of the drainage trench to construct the drainage trench as a drainage way.
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