[0019] The construction method of the steel plate concrete wall of the primary circuit cabin of the high-temperature gas-cooled nuclear reactor proposed in the present invention, the structure of the constructed wall is shown as figure 2 As shown, the construction method includes the following steps:
[0020] (1) According to the size and strength design requirements of the primary circuit cabin of the high-temperature gas-cooled nuclear reactor, the inner row of load-bearing steel columns 7, the outer row of load-bearing steel columns 8, the load-bearing beams 10 and the connecting beams 12 are arranged, and the load-bearing beams 10 are arranged at opposite positions. Between the inner row of load-bearing steel columns 7 and the outer row of load-bearing steel columns 8, the two ends of the load-bearing beam 10 are respectively welded to the load-bearing steel columns 10; the connecting beam 12 is welded transversely to one side of the inner row of load-bearing steel columns 7;
[0021] (2) A shielded cooling water pipe 5 is arranged between the connecting beam 12 and the inner row of load-bearing steel columns 7, and the shielded cooling water pipe 5 is welded to the connecting beam 12;
[0022] (3) Weld the outer steel plate 6 on the outside of the outer row of load-bearing steel columns 8, weld the inner steel plate 11 on the inner side of the inner row of load-bearing steel columns 7, and set a number of shear nails 9 on the inner side of the outer steel plate 6 and the inner side of the inner steel plate 11 respectively;
[0023] (4) Hoist the first wall skeleton module formed by the above steps (1) to (3) to the position of the primary circuit cabin of the high temperature gas-cooled nuclear reactor, and pour concrete into the wall skeleton to form the first steel plate concrete wall Then, hoist the second wall skeleton module formed by the above steps (1)-(3) on the first steel plate concrete wall module, and combine the first steel plate concrete wall module with the second The outer steel plate, inner steel plate, shielded cooling water pipe, inner row of load-bearing steel columns and outer row of load-bearing steel columns corresponding to the positions in the wall skeleton module formed by the above steps (1)-(3) are welded, and finally to the second wall Pouring concrete on the body frame;
[0024] (5) Repeat step (4) to form a high-temperature gas-cooled nuclear reactor primary circuit cabin wall constructed by multiple steel plate concrete wall modules.
[0025] The construction method of the steel plate concrete wall of the primary circuit cabin of the high-temperature gas-cooled nuclear reactor proposed in the present invention will be arranged in the primary circuit cabin of the high-temperature gas-cooled nuclear power plant with scattered shielded cooling water pipes, steel plates used as concrete pouring templates, and fixed internal and external steel plates. The steel frame of the reactor is integrated to form an integral structural module; then after the construction of the raft or lower module at the bottom of the primary circuit cabin of the high-temperature gas-cooled nuclear reactor is completed, the structural module is hoisted into the construction area by a crane, and the lower end of the structural module is connected to a The raft or lower module at the bottom of the loop compartment is combined to fix the entire module, and then the corresponding outer steel plate, inner steel plate, shielded cooling water pipe, inner row of load-bearing steel columns and outer row of load-bearing steel columns are welded, and finally between the two steel plates Pour concrete in between. The load-bearing steel columns, inner steel plates, and outer steel plates in the reinforced concrete structural module replace the traditional steel bars to play a supporting role. The structural module will exist as a permanent structure in the primary circuit cabin wall of the target nuclear power plant.
[0026] The construction method of the steel plate concrete wall of the primary circuit cabin of the high temperature gas-cooled nuclear reactor proposed in the present invention, according to the shielded cooling water system, decomposes the reactor cabin and the evaporator cabin into different areas, and then adopts a modular structure between the inner and outer steel plates Load-bearing steel columns, shear nails, load-bearing beams, connecting beams, etc. are set up to form a steel frame structure to prevent deformation, falling apart or collapse of each module during the hoisting process, and to meet the seismic design requirements of the concrete wall.
[0027] In the steel plate concrete wall of the primary circuit cabin of the high-temperature gas-cooled nuclear reactor constructed by the method of the present invention, the load-bearing steel column used may be hot-rolled I-beam; the shear nails may be carbon steel anchor nails, which are evenly arranged in all wall structures, Its function is to improve the shear resistance of the concrete wall; the load-bearing beam can be ordinary I-beam, which is mainly set at the key load-bearing position of the wall, and its function is to improve the load-bearing capacity of the concrete wall and connect part of the inner and outer rows of steel columns into One piece; the connecting beam can be hot-rolled channel steel, which is mainly arranged at a certain position and an intermediate position away from the upper and lower structural module interfaces, and its function is to connect the inner row of steel columns and fix the shielding cooling water pipe.
