Underground pipeline foundation pit supporting device and method: Fid-Bau Portal

Underground pipeline foundation pit supporting device and method

ZHU YAWEN / LI WEIFENG / YUAN YOUSHENG / YANG LIN

The underground pipeline foundation pit supporting device comprises a main supporting column, a crane rope bolt hole is formed in the top of the main supporting column, an upper limiting ring, a lower limiting ring, an upper limiting nut, an upper hinge fixing ring and a lower limiting nut are arranged on a column body of the main supporting column, and a rhombic supporting frame with a baffle is arranged between the lower limiting ring and the upper limiting ring; a threaded guide rail is arranged below the lower limiting nut, the lower end of the threaded guide rail is fixedly welded to a base, a bottom plate is arranged below the base, positioning nails are welded to the lower end face of the bottom plate, and a shock isolation mechanism is further arranged between the bottom plate and the base. By arranging the upper limiting ring, the upper limiting nut, the lower limiting ring and the lower limiting nut, the use precision of equipment and the flexibility of the use size of the equipment are guaranteed, a constructor can flexibly set the opening degree of the supporting device according to the size of a foundation pit, multi-size universality is achieved, and meanwhile, the construction efficiency is improved. And the positioning stability and accuracy of the whole device are improved through the shock isolation mechanism.

本发明公开了一种地下管线基坑支护装置及方法，包括主支柱，主支柱的顶部设有吊车绳栓孔，主支柱的柱身处设有上限位环、下限位环、上限位螺母、上铰链固定环、下限位螺母，在下限位环和上限位环之间设有带挡板的菱形支撑架；下限位螺母的下方设有螺纹导轨，螺纹导轨的下端固定焊接在底座上，底座的下方设有底板，底板的下端面焊接定位钉，在底板与底座之间还设有隔震机构。本发明通过设置的上限位环、上限位螺母、下限位环和下限位螺母保证了设备的使用精度和设备使用尺寸的灵活性，施工人员可根据基坑尺寸大小灵活设置支护装置的开度，实现多尺寸的通用性，同时，通过隔震机构提高了整个装置的定位稳定性和准确性。

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