Semi-rigid assembly type comprehensive pipe gallery and construction method thereof: Fid-Bau Portal

Semi-rigid assembly type comprehensive pipe gallery and construction method thereof

YU CHUN / PANG TAO / ZHU GUOZHENG / WANG YAODONG / ZHANG TAO / LI SHAN

The invention discloses a semi-rigid assembly type comprehensive pipe gallery. The semi-rigid assembly type comprehensive pipe gallery comprises a main pipe gallery body, the main pipe gallery body is formed by connecting a plurality of standard prefabricated sections in series, a water-swelling sealing rubber ring construction groove is reserved in the whole perimeter of the cross section of the standard prefabricated segments, an upper haunch corner and the a lower haunch corner of the pipe gallery are arranged in a non-full-length mode and are interrupted by 0.5 m in the middle of the prefabricated pipe gallery, a circular prestressed steel strand channel is reserved in the middle of the haunch corners in a full-length mode, and a drainage side ditch is reserved in the inner side, close to a pipe gallery cavity body, of the lower haunch corner of the pipe gallery. According to the semi-rigid assembly type comprehensive pipe gallery, the physical and mechanical properties of prestressed steel strands are utilized, the prefabricated pipe gallery forms a semi-rigid structure body, and therefore the problems of groundwater leakage and the like caused by differential settlement among different sections of a conventional rigid assembly type pipe gallery are effectively avoided.

一种半刚性装配式综合管廊，包括主管廊体，主管廊体由多节标准预制节段串连而成；在标准预制节段的横断面全周长预留遇水膨胀密封胶圈施工凹槽；管廊上腋角及下腋角为非通长布置，于预制管廊中间中断0.5米；在腋角中间通长预留圆形预应力钢绞线通道；管廊下腋角近管廊腔体内侧预留排水边沟。本发明利用预应力钢绞线的物理力学特性，使预制管廊形成半刚性结构体，有效规避常规刚性装配式管廊不同节段间因不均匀沉降引起的地下水渗漏等问题。

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