Inclined nuclear power plant transportation channel system and its construction method

Abstract

The invention discloses a transportation channel system of an inclined nuclear power station and a construction method of the system. The system comprises an inclined channel, an internal model support system, tension sleeves and an emplacement device. The method mainly comprises the following steps: assembling an inclined channel module, assembling the internal model support system, assembling the structure reinforcing tension sleeves, installing the emplacement device, integrally hoisting the inclined channel in position, adjusting positioning precision and the like; and finally, installinga transportation channel on cross sections of three concrete wall bodies obliquely at 45 degrees. After the method disclosed by the invention is adopted, structural deformation can be remarkably reduced; construction procedure can be simplified; installation precision can be improved; the construction period of an installation stage can be shortened; construction efficiency can be improved; relatively great economic benefits and social benefits are created; and the method can be applied to the field of building construction of the same kind of structures.

Description

Technical field [0001] The invention belongs to the technical field of building construction, and specifically relates to an inclined nuclear power plant transportation channel system and a construction method thereof. Background technique [0002] The inclined transportation channel is a stainless steel cladding structure. As a nuclear fuel transportation channel, it plays a very important role in nuclear fuel transportation during the operation of nuclear power plants. In the construction of nuclear power plants that have been built or are under construction, the stainless steel cladding of nuclear power plants is mainly constructed by the "post-sticking method". This method has cumbersome installation processes, difficult to control overall installation accuracy, long installation cycles, long working hours at heights, and high safety risks. , The shortcomings of occupying the critical path of the project for a long time. The inclined passage of the nuclear power plant is a t...

AI Technical Summary

Problems solved by technology

In the construction of nuclear power plants that have been built or are currently under construction, the stainless steel cladding of nuclear power plants is mainly constructed using the "post-pasting method". This method has cumbersome installation processes, difficulty in controlling the overall installation accuracy, long installation period, long time for high-altitude operations, and high safety risks. , Occupying the critical path of the project for a long time and other disadvantages

The inclined channel of the nuclear power plant is a thin-walled, narrow and long cylindrical stainless steel structure with large size, narrow width, and high height. The installation angle is 45°, and the installation accuracy is high. It spans multiple walls and multi-layer elevation sections, and the construction process is complicated.

The "post-post method" is a full-time high-altitude operation, which occupies the critical path of the project for a long time, there are many cross-constructions, and the construction safety and quality risks are difficult to predict; in addition, the construction method has a narrow operating space during construction and cannot Effective use of tools to control welding deformation of stainless steel cladding, the overall installation accuracy is difficult to guarantee

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