Bearing device for changing supporting force of steel framework of deep foundation pit according to soil covering amount

Abstract

The invention relates to the technical field of steel skeleton supporting, in particular to a bearing device for changing the supporting force of a steel skeleton of a deep foundation pit according to the soil covering amount. The device comprises two supporting devices and a cross beam arranged at the upper ends of the two supporting devices, a bearing mechanism used for supporting the cross beam is arranged at the connecting position of the supporting devices and the cross beam, each supporting device comprises a supporting column, inserting holes are formed in the four corners of the upper end of each supporting column, and the cross beam comprises a cross beam rod and a plurality of inserting columns fixed to the bottoms of the two ends of the cross beam rod; and a spring baffle ring is fixed on the inserting column. The bearing mechanism is used for bearing a cross beam for bearing soil, after the cross beam bears the soil, the cross beam moves downwards, a driving toothed plate drives a gear, the gear drives a positioning sliding plate to move upwards, the moving positioning sliding plate drives one end of the positioning sliding plate to move upwards, and the other end of a supporting rod changes the supporting position of a cross beam rod; the supporting rod supports the middle of the cross beam rod, and the bearing capacity of the cross beam rod to soil is improved.

Description

technical field [0001] The invention relates to the technical field of steel frame support, in particular to a load-bearing device for changing the support force of a deep foundation pit steel frame according to the amount of soil covering. Background technique [0002] Deep foundation pit refers to a project whose excavation depth exceeds 5 meters or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. In deep foundation pits, steel skeletons are often built as support pits or work Platform, when working in a deep foundation pit, the soil on the foundation pit can easily fall on the steel frame to increase the bearing strength of the steel frame. When too much soil accumulates on the steel frame, it is easy to make the steel frame built The middle part of the frame bears heavy loads, which reduces the service life of the steel frame and increases the danger of workers working on th...

AI Technical Summary

Problems solved by technology

[0002] Deep foundation pit refers to a project whose excavation depth exceeds 5 meters or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. In deep foundation pits, steel skeletons are often built as support pits or work Platform, when working in a deep foundation pit, the soil on the foundation pit can easily fall on the steel frame to increase the bearing strength of the steel frame. When too much soil accumulates on the steel frame, it is easy to make the steel frame built The middle part of the frame bears heavy loads, which reduces the service life of the steel frame and increases the danger of workers working on the steel frame

Images