Ultra-deep water-collecting well open caisson construction structure and method

Abstract

The invention relates to an ultra-deep water-collecting well open caisson construction structure and method. According to the method, an inner supporting mechanism and an outer scaffold are included; and the inner supporting mechanism comprises a bottom plate, at least two supporting assemblies and at least two driving mechanisms. Each supporting assembly comprises a connecting ring and a plurality of supporting rods, wherein one end of each supporting rod is fixedly connected with the connecting ring, connecting pieces are arranged on splicing plates, and the ends, away from the connecting ring, of the supporting rods are detachably connected with the connecting pieces; each connecting ring is connected with each driving mechanism, and the driving mechanisms drive the connecting rings to rotate relative to the bottom plate; when the supporting rods are separated from the connecting pieces, a gap is formed between the end parts, far away from the supporting rods, of the supporting rods and the splicing plates; and the outer scaffold is arranged at the periphery of an open caisson, a cross beam is arranged on the outer scaffold and located above the open caisson, a lifting rod is fixedly connected to the cross beam, and the lower end of the lifting rod is fixedly connected with the bottom plate. The structure has the effect of reducing the construction difficulty of repeatedly disassembling and assembling the inner formwork scaffold.

Description

technical field [0001] The present application relates to the field of building construction, in particular to an ultra-deep water collection well caisson construction structure and construction method. Background technique [0002] Structures such as elevator shaft pits and sumps with a large buried depth in the foundation floor of high-rise buildings are generally more than 2.0m deeper than the foundation floor of the basement. Due to the deep depth of the ultra-deep water collection well, layered pouring and multiple subsidence are usually used. way of making. [0003] In the flow process of the caisson construction method in the related art, when the depth of the caisson is greater than 3.9m and less than 8.5m, two pours of concrete are used to sink twice, that is, the first time includes pouring concrete 3.9m at the blade foot, and then the initial sinking , the remaining part of the caisson is poured for the second time, and finally the final sinking is carried out. A...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: the scaffolding of the inner formwork is used to support the inner formwork, and at the same time, it is convenient for the staff to carry out construction processing on the pull bolts of the formwork, and when the layered caisson sinks , it is necessary to remove the inner formwork and scaffolding to excavate the inside of the caisson. The inner formwork and scaffolding is relatively large, and the repeated removal of the scaffolding prolongs the construction period of the caisson and increases the construction complexity.

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