Construction method for steel plate concrete wall of primary loop cabin of high temperature gas cooled reactor

Abstract

The invention relates to a construction method for a steel plate concrete wall of a primary loop cabin of a high temperature gas cooled reactor, which belongs to the technical field of reactor structures. The method includes: arranging inner bearing steel posts, outer bearing steel posts, bearing crossbeams and connecting beams according to design requirements, sequentially arranging shielding cooling water pipes, outer steel plates, inner steel plates and a plurality of transverse shearing nails to form a wall framework module, hoisting the module to the position of the primary loop cabin ofthe high temperature gas cooled reactor, concreting to form a lower-layer steel plate concrete wall module, hoisting an upper-layer module on the lower-layer steel plate concrete wall module, and cycling so to form the wall of the primary loop cabin of the high temperature gas cooled reactor. By the construction method, time of constructional critical paths can be shortened, cross workload on a construction site can be reduced, and work intensity on the construction site is relieved. Further, accurate execution of construction schedule can be guaranteed while construction quality is improved and construction period is shortened.

Description

technical field [0001] The invention relates to a method for building a steel plate concrete wall of a primary circuit cabin of a high-temperature air-cooled nuclear reactor, and belongs to the technical field of nuclear reactor structures. Background technique [0002] The high-temperature air-cooled nuclear reactor primary circuit compartment is a low-pressure ventilated containment containing the three main equipment of the reactor primary circuit system (reactor pressure vessel, steam generator shell and hot gas conduit), and is arranged in the nuclear island reactor building. The shielded cooling water system of the reactor is composed of a large number of scattered cooling water pipes. These water pipes are arranged inside the wall of the primary circuit cabin, and their installation is usually located on the critical path of the entire project construction. The construction progress of the primary circuit cabin directly affects the project. construction cycle. The tr...

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Problems solved by technology

[0007] The traditional construction method makes the construction site of the nuclear power plant a lot of work, there are many cross-operations between civil engineering and installation, the site work space is narrow and most of them are high-altitude operations. It will bring a huge amount of high-altitude operations, and the civil installation work of the primary circuit cabin will take a long time on the critical path, and its economy, safety and quality assurance requirements will be in an unfavorable competitive position

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