JPS6388495A - Method of constructing housing for nuclear power plant - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a method for building a nuclear power plant.

(Prior Art) A conventional method for constructing a L1 building for a nuclear power plant will be explained with reference to FIG. 1(B) and FIG. 3.

k! The first step is to demonstrate the cutting and inspect the bedrock. After this inspection is completed, the construction of the 9 body parts of the reactor building 1 will begin with the construction of the mat 3, and then the floor 5 and walls 7 of the basement floor will be constructed. The first basement floor in FIG. 1(B) is abbreviated as 81F. Underground 2
．． The same applies to the third floor, etc.

After completing G7 on the first basement floor, in parallel with the construction on floor 5 on the first floor above ground, we will construct the foundation 11 of the main MZM Human Department 9.

After completion of the floor 5 of the first basement floor and the foundation 11 of the large item loading area, the construction work on the ground floor of the detached house pA1 will be carried out following the basement floor. In parallel with this ground floor frame work,
The area around the reactor tidying house 1 will be backfilled, and construction of the cap body of the main large equipment loading section 9 will begin. In addition, in FIG. 1(B), the first floor above the ground is abbreviated as Fl. On the ground 2, 3. ...The same applies to floors.

Once the first floor above ground of the reactor building 1 is completed and the wooden dog equipment +, 1 + transport section 9 is completed, the work to transport and install machinery and electrical equipment into the reactor building 1 will begin. In this way, the reactor building 1 is completed up to the top floor, and mechanical and electrical instrumentation work is continued to complete the nuclear power plant building.

(Problems to be Solved by the Invention) However, in such a conventional building construction method for nuclear power station U'1, the reactor building is constructed after the completion of the first floor above ground and the main equipment loading section 9. Bringing machinery and electrical items into 1.
Installation work must begin. Therefore, as shown in Figure 1 (B), even if the basement floor construction is completed,
Mechanical and electrical items cannot be brought into or installed on the basement floor. As a result, the delay in the start of the installation work for bringing machinery and electrical equipment into the basement floor becomes a critical bus in the overall construction period of the nuclear power plant, causing the entire construction period to take a long time.

This invention was made in consideration of the above facts,
An object of the present invention is to provide a method for constructing a building for a nuclear power plant that can significantly shorten construction work JtIJ for a nuclear power plant.

[Structure of the invention]

(Means for Solving the Problems) This invention provides an i! In the building 11 construction method, when constructing a basement floor, a temporary equipment loading section for transporting equipment into the basement floor is provided in communication with the basement floor, and the installation location of this temporary equipment loading section is as follows:
It was constructed so that it would be located directly below the main equipment loading section that will be provided on the ground floor in the later ground floor construction process.

(Function) Therefore, according to the nuclear power plant building construction method according to the present invention, IIQ entry and installation of mechanical and electrical components to the basement floor can be carried out at 9:00 AM without completing the main equipment loading section on the ground floor. It can be started in the period. Furthermore, since the temporary equipment loading section is provided directly below the permanent equipment loading section, this temporary equipment loading section can also be used as the foundation of the permanent equipment loading section.

(Example) Hereinafter, a practical example of this invention will be explained based on the drawings.

FIG. 1(A) is a diagram showing the U installation process of an embodiment of the nuclear power plant building construction method according to the present invention. Moreover, FIG. 2 is a sectional view showing a nuclear reactor house constructed according to this practical example. In addition, in FIG. 2, the same parts as the conventional one are given the same reference numerals.

The reactor building 21 shown in FIG. 2 houses a reactor containment vessel 23 inside the building. Others, nuclear reactor 1! ! Inside Building 21, there are various equipment, equipment, piping, etc. for operating the reactor. J3 instrumentation (not shown) is installed. Nuclear reactor 1! On the first floor of the building 21, a large wooden sounder carrying section 9 is provided. This large-scale transport unit 9 is used to transport mechanical and electrical items into the reactor building 21 after the basement floor is completed.

Further, a temporary one-device carry-in AS 25 is provided directly below this permanent personal equipment carry-in section 9. This temporary equipment loading section 25 is provided in communication with the first floor of the basement floor during construction of the basement floor, and is used to transport machinery and electrical items into the basement floor before the permanent large equipment loading section 9 is completed.

Next, the building construction method of the above-mentioned reactor building is shown in Figure 1 (A).
Explain with reference to.

First, the ground 26 is excavated, and after the excavation is completed, a rock mass inspection is performed. After completion of this inspection, the construction of the reactor building 21 will begin with the mat 3 construction, and the basement floor 5 and walls 7 will be laterally constructed. The first basement floor in Figure 1 (△) is abbreviated as BIF.

The 2nd and 3rd basement floors are also abbreviated in the same way.

After the wall 7 on the second basement floor is completed, the foundation 27 and floor 28 of the temporary equipment loading section 25 will be constructed in parallel with the construction of the floor 5 on the first basement floor. In addition, wall 7 on the first basement floor and floor 5 on the first floor above ground
In parallel with the construction, the wall 29 of the temporary equipment loading section 25 is constructed to complete the temporary equipment loading section 25. At that time, wall work on the first floor above ground, construction on the second floor above ground, etc. were carried out sequentially, and the basement floor (1) was constructed. Figure 1 (A)'c shows the first floor above ground as 1F, !: Abbreviation. Hereinafter, The second and third floors above the ground are also abbreviated in the same way.

In parallel with this construction on the ground floor, a permanent human equipment loading section 9 will be constructed. Once this main large equipment loading section 9 has been completed, the structural work on the ground floor will continue up to the Lth floor.

Equipment and electrical equipment will be transported and installed inside the reactor building 21 in the basement 1r of the nuclear detached house M27! The electrical instrumentation work for the machine will begin after the completion of the IJ and the temporary equipment loading section 25. Even after the completion of the ground floor of reactor building 21, machinery and
Electrical instrumentation work will be carried out and reactor building 21 will be completed.

According to the above embodiment, a temporary equipment loading section is constructed in parallel with the construction work on the basement floor, and after the construction of the temporary FfM equipment carrier section, equipment and electrical items are brought in from this loading section. It is possible to carry machinery and electrical items into the basement floor and install them without waiting for the completion of the main equipment: S carrying-in section 9. Therefore, mechanical and electrical items can be brought in and installed quickly, so that mechanical work such as piping work and electrical instrumentation work can be completed earlier. Therefore, the construction period for nuclear power plants can be significantly shortened.

Further, since the temporary equipment loading section 25 is provided directly below the permanent large equipment section 9, the temporary machine male loading section 25 can also be used as the foundation of the permanent large equipment loading section 9. Therefore, there is no need to provide a foundation 11 (shown in FIG. 3) as in the conventional case, and it is possible to reduce costs associated with the construction of a nuclear power plant.

Furthermore, the temporary equipment loading section 25 can be effectively used as an equipment storage area or a maintenance space during periodic inspections after the nuclear power plant building is completed.

In addition, although the said Example demonstrated about the nuclear reactor building of a nuclear power plant, a turbine building may be sufficient.

〔Effect of the invention〕

As described above, according to the nuclear power plant building construction method according to the present invention, when constructing a basement floor, a temporary equipment loading section is provided in communication with the basement floor, and the installation location of this temporary equipment loading section is on the ground floor. Because it is configured so that it is located directly below the main installation equipment 4 loading section installed in Costs associated with power plant construction can be reduced by using the temporary equipment loading area as the basis for the permanent large equipment loading area.

[Brief explanation of the drawing]

1(A) and 1(B) are diagrams that do not show the construction process of one embodiment of the nuclear power plant building construction method according to the present invention and the conventional construction process, respectively, and FIG. ) A vertical cross-sectional view showing a nuclear reactor building constructed according to an embodiment,
FIG. 3 is an mIgi plan view showing a reactor building constructed using a conventional building construction method. 9...Main large aircraft loading section, 11...Reactor building 2
5...Temporary equipment loading section. Representative Patent Attorney Ken Chika FTI Hiroshi Mitsumata Figure 2 Figure 3

Claims (1)

[Claims] In a nuclear power plant building construction method in which the ground floor is constructed after the basement floor is constructed, when constructing the basement floor, a temporary equipment loading section for transporting equipment into the basement floor is provided in communication with the basement floor. A nuclear power plant building construction method, characterized in that the installation location of the section is directly below a main equipment loading section that will be installed on the ground floor in a later ground floor construction process.