| 摘要 |
The present invention relates to a fabricated trench that is configured to have a floor assembly plate material, a left side assembly plate material, a right side assembly plate material, and a cover assembly plate material. According to the present invention, left and right side plate material supporting members where respective plate material insertion sections are formed are integrally formed with anchor sections, to be formed in a state of protruding from both ends of the floor assembly plate material, and to be formed for lower end parts of the left and right side assembly plate materials to be inserted and assembled, the anchor sections being formed at both respective longitudinal-direction ends of the floor assembly plate material to be embedded in a state of protruding toward a core section of the floor assembly plate material. Cover supporting sections are integrally formed with anchor sections, are formed in a state of being exposed from respective upper ends of the left and right side assembly plate materials, and support the cover assembly plate material. The anchor sections are formed at the respective upper ends of the left and right side assembly plate materials to be embedded in a state of protruding toward respective core sections of the left and right side assembly plate materials, and left and right side cover supporting members where respective upward-protruding protruding portions are formed so as to prevent deviation of the cover assembly plate material supported by the cover supporting section are integrally formed with the floor assembly plate material and the left and right side assembly plate materials. |
