Adjustable prefabricated caisson mandrel without vertical splayed shape and prefabricating method

Abstract

The invention discloses an adjustable prefabricated caisson mandrel without a vertical splayed shape and a prefabricating method and belongs to the technical field of templates. The adjustable prefabricated caisson mandrel comprises four combined steel templates arranged on the periphery of the mandrel, a bottom plate arranged at the bottom end of the mandrel, a #-shaped frame arranged at the upper end of the bottom plate, a hydraulic system, an acquisition system and a control system, and the mandrel further comprises baffles arranged between the adjacent combined steel templates. The combined steel templates are of steel frame structures without the vertical splayed shape. A plurality of first hydraulic cylinders connected with the steel frame structures on the combined steel templates are arranged on the #-shaped frame, and piston rods of the first hydraulic cylinders stretch out and draw back to drive the combined steel templates to move and are used for adjusting the positions of the mandrel and outer templates. A hydraulic pump station in the hydraulic system is placed at the upper end of the bottom plate, hydraulic wall bolts are embedded in the two sides of the middle of the bottom plate, and adjusting mechanisms are embedded in the other two sides of the bottom of the bottom plate. According to the adjustable prefabricated caisson mandrel without the vertical splayed shape and the prefabricating method, compared with a traditional manual installation mode, the installation time is greatly shortened, the installation precision is improved, and the safety of operators is guaranteed.

Description

technical field [0001] The invention relates to the technical fields of machinery and hydraulic pressure, in particular to an adjustable prefabricated caisson mandrel without a vertical splayed shape and a prefabrication method. Background technique [0002] In various engineering constructions, the gravity caisson is a commonly used equipment in wharf engineering construction. During the pouring process of the caisson, a caisson mandrel is required. In the prior art, bulk formwork is often used for the formwork of the cell in the caisson, and a support system is set in the cell, and the concrete is poured after the erection of the formwork is completed. The disadvantages of this construction method are: the process of supporting the formwork is cumbersome; After concrete, the formwork needs to be separated manually, and then the formwork pieces are taken out, so the dismantling work using the formwork progresses slowly, and the safety of workers cannot be well guaranteed; a...

AI Technical Summary

Problems solved by technology

In the prior art, bulk formwork is often used for the formwork of the cell in the caisson, and a support system is set in the cell, and the concrete is poured after the erection of the formwork is completed. The disadvantages of this construction method are: the process of supporting the formwork is cumbersome; After concrete, the formwork needs to be separated manually, and then the formwork pieces are taken out, so the dismantling work using the formwork progresses slowly, and the safety of workers cannot be well guaranteed; as for the positioning of the core formwork bottom plate, it is generally done manually Calibration, the process is cumbersome, and it is difficult to ensure the accuracy of positioning

[0003] However, although the existing domestic self-shrinking inner formwork can be automated, such as the patent application number 2017207827298, the formwork adopts a vertical character, the structure is complex, the processing is difficult, and the disassembly is inconvenient; when the formwork moves, although there are two degrees of freedom , but the control is difficult and the motion accuracy is low; during the hoisting process, someone needs to observe the position of the mandrel and correct the position in real time, and the positioning accuracy is low

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