Foundation pit supporting structure spanning large underground pipeline: Fid-Bau Portal

Foundation pit supporting structure spanning large underground pipeline

LIU SHUAI / CUI WENTAO / WANG ZONGSHENG / YANG PENGBO / JIANG NING / FAN WENTAO

The invention discloses a large underground pipeline crossing foundation pit supporting structure which comprises a first outer sheath assembly and a second outer sheath assembly, first flanging fixing plates are arranged on the outer walls of the two sides of the first outer sheath assembly, and second flanging fixing plates are arranged on the outer walls of the two sides of the second outer sheath assembly. And the second outer sheath assembly is connected with the first flanging fixing plate through bolts, a plurality of U-shaped bases are fixedly connected to the outer wall of the bottom of the first outer sheath assembly at equal intervals through bolts, and a protective cover is arranged at the top end of each U-shaped base. The underground pipeline foundation pit protection device can support and protect the side wall of an underground pipeline foundation pit and soil pressure above the underground pipeline foundation pit, can protect underground pipelines with different diameter sizes by arranging the first outer sheath assembly and the second outer sheath assembly, prevents the underground pipelines from being damaged in the construction process of the foundation pit, enables the underground pipelines to be in a sealed and dry state, and improves the construction efficiency. The service life of the underground pipeline is prolonged.

本发明公开了一种跨越大型地下管线基坑支护结构，其中包括外护套组件一和外护套组件二，所述外护套组件一两侧外壁设置有翻边固定板一，所述外护套组件二两侧外壁设置有翻边固定板二，且外护套组件二均通过螺栓与翻边固定板一相连接，所述外护套组件一底部外壁通过螺栓等距离固定连接有多个U型底座，且每个U型底座顶端均设置有防护罩，该装置设置U型底座和防护罩，能够对地下管线基坑侧壁和上方的土压力支撑防护，并且通过设置外护套组件一和外护套组件二，能够对不同直径尺寸的地下管线进防护，避免基坑在施工过程中对地下管线造成破坏，同时使地下管线处于密封干燥状态下，提升地下管线的使用寿命。

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