Modular division structure and construction logic method for cap-type nuclear island reactor plant

Abstract

Modular Structure and Construction Logic Method for CAP Reactor Island Building. This invention belongs to the field of nuclear power technology. Specifically for CAP reactor type nuclear power projects, it designs and develops a modular construction method for the CAP reactor island building, planning four construction logic lines, which are constructed sequentially. Following this construction logic line for CAP reactor construction results in good cost-effectiveness, high quality and safety, and a short construction period. The summarized and developed construction logic schedule has extremely high promotional value.

Description

Technical Field

[0001] This invention belongs to the field of nuclear power engineering construction technology, and specifically adopts a modular approach to develop construction logic for CAP reactors. Background Technology

[0002] Currently, third-generation passive nuclear power technology has achieved large-scale construction. Nuclear power projects involve large investments and long construction periods. Engineering construction design planning is a project management activity that runs through the entire life cycle of a nuclear power project, and has a comprehensive impact on the project scope, investment scale, schedule, risk management, and quality control. Nuclear power safety is extremely important, and safety must be the top priority. Project construction must be steadily and orderly promoted in accordance with the highest global safety standards and requirements.

[0003] Modular construction offers advantages such as altering construction logic, transforming sequential construction into parallel construction, shortening critical path duration, and reducing construction costs. In particular, the technology of combining steel structures, reinforcing bars, embedded parts, and pipelines into large modules for one-time hoisting and installation has become a development trend in nuclear power and other engineering construction. Because there is no prior experience to draw upon, to ensure the coordinated and successful achievement of project construction goals, it is necessary to independently overcome a series of construction challenges based on the characteristics of CAP reactor-type nuclear power projects and develop a design and construction schedule for the nuclear power project. Summary of the Invention

[0004] This invention addresses CAP reactor type nuclear power projects by designing and developing a modular division structure and construction logic method for the reactor building of the CAP reactor type nuclear island, in order to ensure the smooth completion of the overall project.

[0005] This invention is achieved through the following technical solution:

[0006] The CAP reactor building features a modular structure, dividing the building into four construction zones.

[0007] The first construction area begins at the base of the nuclear island building and sequentially includes modules CVBH, CA01, CA02, CA03, CA04, and CA05, ending at the CA32-34 area on the eighth floor. The second construction area begins at CB34-39 / CB27-28 / CB44-47 and ends at the CA35-37 area on the eighth floor. The combined construction area of ​​the first and second parts begins at the west towers SPL52 / SPL60 / SPL61, the bubbling unit, and the heat exchanger, including the east area on the ninth floor, and ends at CVTH.

[0008] The third construction area starts from the A / B / C / D floors, the RC side of the E floor, and the RC side of the 1st floor of the shielded workshop, and ends at the RC side of the 6th / 7th floor of the shielded workshop; the fourth construction area starts from the reinforcement before the SC is in place and ends at SC2-5; the combined construction area of ​​the third and fourth parts starts from SC6-16 and ends at the completion of the dome.

[0009] A modular construction logic method for CAP-type nuclear island reactor buildings, planning four construction logic lines;

[0010] The first construction logic line begins with the pouring of concrete for the foundation slab of the nuclear island plant, sequentially completing the hoisting of CVBH, CA01, and CA03, until the completion of the concrete structure construction in the CA32-34 area on the eighth floor; the second construction logic line begins with the hoisting of CB34-39 / CB27-28 / CB44-47, until the completion of the concrete structure construction in the CA35-37 area on the eighth floor; the combined route of the first and second construction logic lines begins with the hoisting of the west towers SPL52 / SPL60 / SPL61, the introduction of the bubbling unit and heat exchanger, the construction of the east side concrete structure on the ninth floor, and ends with the hoisting of CVTH.

[0011] The third construction logic line starts from the construction of the concrete structure of the shielded plant's A / B / C / D floors, the RC side of the E floor, and the RC side of the 1st floor, and ends at the completion of the concrete structure construction of the RC side of the 6th / 7th floors of the shielded plant; the fourth construction logic line starts from the binding of the reinforcing bars before the SC is in place and ends at the completion of the concrete pouring of SC2-5; the combined route of the third and fourth construction logic lines starts from the construction of SC6-16 and the concrete pouring of SC6-16, and ends at the completion of the dome concrete structure.

[0012] The four construction logic lines shall be constructed in the following order:

[0013] First construction logic line: Concrete pouring for the foundation slab of the nuclear island plant; CR10 hoisting; Construction of the concrete structure of the A floor of the shielded factory building; CVBH hoisting; CV lower pressure grouting; KQ11 equipment module hoisting; Construction of the first floor concrete structure of the reactor building; CA04 hoisting; CB65-66 hoisting; Lifting of CB51-54 and CB61-64; Construction of the second and third floor concrete structures; CA05 hoisting; CA01 hoisting; Lifting of CB21-25 and CB11-12; Concrete structure construction of the fourth, fifth, and sixth floor RV areas; Lifting of CB31-33 and CB41-43; Construction of the fifth floor concrete structure, excluding the RV area; Concrete structure construction and steel cladding installation for room 11504 on the sixth floor; Concrete structure construction of room 11305 on the sixth floor; CA03 hoisting; Construction of the concrete structure and steel cladding for room 11305 on the seventh floor; simultaneously... CA02 hoisting; Reserved area at CA02; CB26 hoisting; Elevator shaft reserved area; Floor painting work in room 11209; CS17 and SPL11 hoisting; KQ22-23 equipment module hoisting and introduction; CA32-33 hoisting; Construction of the concrete structure in area CA32-33 on the eighth floor;

[0014] Second construction logic line: Lifting of CB34-39, CB27-28, and CB44-47; Construction of the sixth and seventh floor concrete structure; Floor painting work in rooms 11206-11208; The installation of the injection box in room 11206, the installation of SPL20, SPL09, and SPL43, the installation of the Q233 equipment module, and the pre-introduction of pipelines into room 11206 were all carried out simultaneously. The installation of the safety injection tank in room 11207, the introduction of nuclear-grade large-diameter pipelines, the installation of SPL10, SPL21, and SPL44 pipes, and the installation and introduction of the Q223 equipment module; simultaneously, Equipment module hoisting in room 11208, 1123-02-40; CA34-CA37 module hoisting; Construction of the concrete structure in area CA34-37 on the eighth floor;

[0015] The first and second construction logic routes are merged: The west towers SPL52 and SPL60-61 were hoisted, and the bubbling device and heat exchanger were introduced. CA55-57 hoisting; Construction of the concrete structure on the west side of the ninth floor is underway; simultaneously... Erection of SPL54 steel columns in the CA32-33 area on the east side; Erection of SPL54 steel columns in CA34-37 area; Q305 equipment hoisting, core makeup water tanks A / B introduced; SPL18 hoisting; CA58 installation; Main steam and main feedwater pipelines are introduced; Q402 introduced; SPL51 hoisting and installation; Construction of the concrete structure on the east side of the ninth floor; The steel structure above the 110.7m platform was introduced and installed, and SPL35-38, SPL19, CH55, and CH58 were hoisted. CVTH hoisting;

[0016] The third construction logic line: Construction of the concrete structure of the shielded factory building's AD layer, E layer RC side, and 1st layer RC side; simultaneously... Concrete pouring for the floor slabs of auxiliary plant area 4; The lower personnel gate was hoisted and positioned. Construction of the RC side concrete structure for floors 2-4 of the shielded factory building; simultaneously... Concrete pouring for the floor slabs of auxiliary plant area 4; The upper personnel gate was hoisted and positioned; Construction of the 5-story RC side concrete structure of the shielded factory building; The RC side of the 6th-7th floor of the shielded plant, the 4th and Nth walls of the auxiliary plant, and the crane rail brackets of the fuel plant were constructed simultaneously.

[0017] Fourth construction logic line: Reinforcing steel binding before SC placement; Construction of E-level SC1; Construction of concrete pouring for E layer SC1; SC2-5 construction, SC2-5 concrete pouring;

[0018] The construction logic of Articles 3 and 4 is combined into one route: SC6-16 construction, SC6-16 concrete pouring; Dome hoisting; Construction of the dome's sloping concrete structure; CB20 module hoisting and installation; Construction of the concrete structure of the water tank; The concrete structure of the dome has been completed.

[0019] Reference Appendix Figures 35-39 In the first construction logic line mentioned above, to Construction proceeds sequentially. and exist Simultaneous construction afterwards to exist Then construction proceeded in sequence. to Construction proceeds sequentially. exist and Subsequent construction, exist Subsequent construction, exist Construction will proceed later. In the second construction logic line, to exist Then construction proceeded in sequence. , , exist Simultaneous construction afterwards exist , , Subsequent construction, exist Construction will proceed later. In the combined construction logic of the first and second routes, to exist Then construction proceeded in sequence. exist Subsequent construction, exist , Subsequent construction, , , exist Simultaneous construction afterwards exist , , Subsequent construction, exist Subsequent construction, to exist Then construction proceeded in sequence. exist and Subsequent construction, exist Construction will proceed later.

[0020] In the third construction logic line mentioned above, , , , Construction proceeds sequentially. forward to Construction proceeds sequentially. forward Construction proceeds sequentially. In the fourth construction logic line, to Construction will proceed sequentially. In the combined construction logic of routes three and four, to exist Construction will proceed later.

[0021] In summary, compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] Following this construction logic line for CAP reactor construction results in good cost-effectiveness, high quality and safety, and a short construction period. The construction logic schedule developed based on this experience has extremely high promotional value. The high-quality and successful completion of the project signifies that China has reached a world-leading level in the research and application of third-generation nuclear power technology. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, are not intended to limit the embodiments of the present invention.

[0024] Figure 1 Critical Path of Nuclear Island Engineering

[0025] Figure 2 Construction joint diagram of the first floor of the reactor building

[0026] Figure 3 Construction joint diagram of the second and third floors of the reactor building

[0027] Figure 4 CA01 Self-compacting Casting Zoning Diagram

[0028] Figure 5 Construction joint diagram of the fourth floor of the reactor building

[0029] Figure 6 The reactor building has five or six floors (RV area).

[0030] Figure 7 Construction joint diagram of the fifth floor of the reactor building (excluding the RV area)

[0031] Figure 8 Construction area of ​​room 11504

[0032] Figure 9 Construction area -1 in room 11305 (98.171m-98.781m)

[0033] Figure 10 Construction area -2 for room 11305 (98.171m-98.781m)

[0034] Figure 11Construction area of ​​room 11305 (98.781m-100.902m)

[0035] Figure 12 Construction area of ​​the elevator shaft reserved area (98.171m-101.575m)

[0036] Figure 13 CA03 Backside Construction Area

[0037] Figure 14 Construction area on the sixth and seventh floors (east side) of the reactor building

[0038] Figure 15 Sixth and seventh floor merged area

[0039] Figure 16 Construction area on the south side of the eighth floor

[0040] Figure 17 The eighth floor of the reactor building (101.575-102.184m)

[0041] Figure 18 102.184m Equipment introduction (a)

[0042] Figure 19 102.184m Equipment introduction (b)

[0043] Figure 20 102.184-105.589m equipment module

[0044] Figure 21 Layer 10(105.589-110.744m)

[0045] Figure 22 Schematic diagram of construction joint segment division for CV bottom head (89.180-100.000m)

[0046] Figure 23 Schematic diagram of the D-level corridor and non-corridor areas of the CV bottom head

[0047] Figure 24 Schematic diagram of the E-level corridor and non-corridor areas of the CV bottom cap

[0048] Figure 25 Schematic diagram of reinforcement of electrical penetrations

[0049] Figure 26 Schematic diagram of construction joint division for the RC section of the shielded plant (100.000-120.137m)

[0050] Figure 27 Schematic diagram of RC6 / 7 layer fabric for shielded factory buildings

[0051] Figure 28 Schematic diagram of SC layered and segmented shielded factory building

[0052] Figure 29 Internal structure diagram of SC16-layer module in shielded workshop

[0053] Figure 30 Schematic diagram of the dome's layers

[0054] Figure 31 Diagram of the fourth section of the inclined plane fabric arrangement

[0055] Figure 32 RC area schematic diagram-1

[0056] Figure 33 RC area schematic diagram-2

[0057] Figure 34 RC area diagram - 3

[0058] Figure 35 Construction logic line

[0059] Figure 36 First construction logic line

[0060] Figure 37 Second construction logic line

[0061] Figure 38 The first and second construction logic routes are merged.

[0062] Figure 39 Articles 3 and 4, and Articles 3 and 4, are combined into a single construction logic route. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0064] Modular construction logic method for CAP reactor island building, such as Figure 1 As shown, the construction area is divided into four zones and four construction logic lines are planned. Construction will proceed in the following order:

[0065] First construction logic line:

[0066] (1) FCD (first concrete date) concrete pouring of the foundation slab of the nuclear island plant;

[0067] (2) Lifting of CR10;

[0068] (3) Construction of the concrete structure of the A floor of the shielded factory building;

[0069] (4) CVBH hoisting by the installation unit;

[0070] (5) Pressure grouting at the bottom of CV;

[0071] (6) Installation of the KQ11 equipment module by the installation unit;

[0072] (7) Construction of the first floor concrete structure of the reactor building;

[0073] The above steps (1) to (7) involve the construction of the first layer (89.789-91.313m). Figure 2 The main work contents include: CVBH positioning, internal measurement and layout of the CV, off-site rebar binding, modular hoisting, embedded parts, grounding installation, KQ11 embedded legs and box installation, formwork erection and concrete pouring. Key construction challenges: ① When pre-embedding the reinforcing bars around the modules, the positioning must be based on the module edge line and pipeline edge line; ② After the first floor of the reactor building is poured, CA04, CB65, and CB66 modules need to be installed. The vertical reinforcing bars around the modules need to be pre-embedded in the first-floor concrete. Since the modules are hoisted later, the installation space for subsequent modules needs to be considered in advance when installing the vertical reinforcing bars; ③ Considering the protection of finished products, the bolts in room 11105 on the first floor are grouted twice through pre-reserved holes.

[0074] (8) Lifting of CA04;

[0075] (9) Lifting of CB65 / CB66;

[0076] (10) Lifting of CB51-54 / CB61-64;

[0077] (11) Construction of the second and third floor concrete structures;

[0078] 1. Construction of the second and third floors (91.313-94.818 / 94.056m) in steps (8) to (11) above. Figure 3The main work contents include: roughening the first floor, measuring and setting out within the CV, hoisting and installing the CA04 module, installing the positioning tools for CB65 / CB66 / CB61-64 / CB51-54, hoisting and installing the CB65 / CB66 / CB61-64 / CB51-54 modules, installing the embedded pipes (WLS pipes, NIS electrical conduits, SG vertical support tools and bodies), identifying conflicts between embedded parts and pipe modules before installation, installing reinforcing bars, embedded parts, and grounding, and setting up formwork and pouring concrete. Key construction challenges: ① CB61-64 and 51-54 require pre-installation of tooling. The tooling support conflicts with the horizontal reinforcing bars. The tooling consists of double-layer steel beams. After installing the lower layer of the tooling, priority should be given to tying the 93.904m horizontal reinforcing bars. This layer has a large amount of embedded parts to install. ② The west-side circumferential reinforcing bars conflict with the pipeline, requiring modification and cutting of the reinforcing bars. Due to the design conflict, the pipeline comes into contact with the CV (continuous circumferential) reinforcement, making it impossible to install the circumferential and radial reinforcing bars, which need to be cut to avoid them. ③ The 94.056m east-west horizontal reinforcing bars on the east side conflict with the pipeline, preventing the reinforcing bars from passing horizontally. Since the floor is above, the reinforcing bars need to be bent downwards to avoid them. The CA01 embedded parts require high precision. Precision control needs to be improved before mortar application, and adjacent embedded parts should be connected as a whole.

[0079] (12) Lifting of CA05;

[0080] (13) Lifting of CA01;

[0081] The elevations in steps (12) to (13) above are 96.2 / 98.2m to 117.7 / 118.3m. Figure 4 After CA01 is assembled, it will be hoisted into place after the concrete pouring of the third floor (94.818m) of the reactor building is completed. Once in place, based on the reactor building construction elevation and process, the entire CA01 module will be divided into four construction areas for concrete pouring: Part 1: Walls G, I, H, and B; Part 2: Walls C, D, E, M, and F; Part 3: Walls J, K, and L; and Part 4: Walls A, L, N, and P. CA01 will be poured using self-compacting concrete of strength grade C35, with a concrete volume of approximately 1790m³. 3 .

[0082] (14) Lifting of CB22 / CB23 / CB21 / CB11 / CB12 / CB24 / CB25;

[0083] (15-1) Construction of the fourth floor concrete structure;

[0084] The above steps (14) to (15-1) involve the construction of the fourth layer (94.818 / 94.056m-96.190m). Figure 5The main work content includes: three-layer roughening, CV internal measurement and layout, hoisting and installation of CA05 / CA01 / CB11 / CB12 / CB21 / CB22 / CB23 / CB24 / CB25 modules, installation of pre-embedded pipes (WLS), electrical conduits, installation of reinforcing bars, embedded parts, and grounding, and formwork erection and concrete pouring. Key construction challenges: The reinforcement construction in this area is particularly difficult, with numerous conflicts. Special attention needs to be paid to the positional conflicts between the horizontal reinforcement at the bottom of the CA01 wall and the anchoring reinforcement of the CA01 foundation connecting plate, as well as the channel steel within the CA01 wall. The 96.190m horizontal slab reinforcement needs to pass through the bolt gaps; due to the arc-shaped arrangement of the bolts, some reinforcements conflict with the bolts. Due to varying site conditions, the specific positions of the reinforcement need to be changed after on-site layout. The installation of the injection box bolts requires high precision; tooling needs to be prepared in advance, and the reinforcement should be installed only after a rigid connection with the upper layer of concrete to ensure accuracy.

[0085] (15-2) Construction of the fifth floor concrete structure (RV area);

[0086] The above step (15-2) involves the construction of the fifth layer (RV area) (96.190m-97.171m). Figure 6 The main work contents include: roughening the fourth layer, measuring and setting out within the CV, construction of embedded plates for embedded parts and tools, construction and installation of WLS embedded pipes, installation of reinforcing bars, embedded parts and grounding, and formwork erection and concrete pouring.

[0087] (15-3) Construction of the sixth floor concrete structure (RV area);

[0088] The above steps (15-3) sixth floor (RV area) (96.171m-99.39m) CA04 surrounding construction ( Figure 6 The main work contents include: roughening the surface of the 5-2 layer, measuring and setting out, installation of RV support embedded bolts, DVI sleeves, RV embedded parts and anchor bolt assemblies, installation of reinforcing bars, embedded parts and grounding, formwork erection and concrete pouring.

[0089] (16) Lifting of CB31 / CB32 / CB33 / CB41 / CB42 / CB43;

[0090] (17) Construction of the fifth floor concrete structure (excluding the RV area);

[0091] The above steps (16) to (17) involve the construction of the fifth floor (excluding the RV area) (96.190m-98.171m). Figure 7The main work contents include: roughening the fourth layer, measuring and setting out within the CV, hoisting and installing CB31 / 32 / 33 / 41 / 42 / 43 modules, installing pre-embedded pipes (WLS), electrical conduits, reinforcing bars, embedded parts, and grounding, and setting up formwork and pouring concrete. Key construction challenges: CB42 modules need to be introduced in advance; anchoring the back reinforcing bars and horizontal bars is a major construction challenge. ① The reinforcing bars must fit snugly against the CB42 modules and ensure the concrete cover meets design requirements. Since the modules have trapezoidal slopes, the reinforcing bars must be anchored in advance during the lower layer of concrete pouring. During reinforcing bar construction, the module's edge line and orientation must be simulated and positioned to meet design requirements. ② Because there are through-pieces on the upper part of the CB42 modules, the reinforcing bars must be bent at the through-pieces, and the concrete cover must meet design requirements. The position of the through-pieces must be simulated and positioned. Due to the limited space after the modules are introduced, reinforcing bar construction is not possible; the modules must be installed only after the reinforcing bar construction is completed.

[0092] (18-1) Construction of the concrete structure of room 11504 on the sixth floor;

[0093] (18-2) Installation of steel cladding in room 11504 on the sixth floor;

[0094] The above steps (18-1) to (18-2) involve the construction of the floor in room 11504 on the sixth floor (98.171-99.403m). Figure 8 The main work contents include: roughening the fifth layer, surveying and setting out, pre-embedded water tanks and pipes, installation of WLS and PXS pipes, installation of reinforcing bars, embedded parts, and grounding, formwork erection and concrete pouring, completion of 11504 pouring, completion of CA01 accessory plate installation, and second SCC of CA01. Key construction challenges: ① The procurement cycle for stainless steel plates is 3-6 months, requiring advance procurement based on the on-site construction progress. The process evaluation for welding stainless steel embedded parts and weldable sleeves must be completed before the embedded parts are processed. ② The stainless steel embedded parts are heavy and difficult to install and adjust. Welded angle steel supports are required for reinforcement during installation, and temporary supports must be erected for on-site adjustments.

[0095] (19) Construction of the concrete structure of room 11305 on the sixth floor;

[0096] (20-1) Construction of the concrete structure of room 11305 on the seventh floor;

[0097] The above step (20-1) seventh floor (98.171-98.781m) Figure 9-10The main work contents of the construction of room 11305 include: roughening the construction joint, measuring and setting out within the CV, installing pre-embedded pipes (WLS), installing reinforcing bars, embedded parts, and grounding, and setting up formwork and pouring concrete. Key difficulties in construction: ① The embedded parts for the CA03 module are distributed in an arc shape with varying deflection angles, making installation and adjustment difficult; ② Furthermore, the embedded parts will conflict with the radial reinforcing bars of layers B and C, and since the reinforcing bars are tightly attached to the CV and cannot be adjusted, the embedded parts need to be relocated.

[0098] (20-2) Steel cladding construction of room 11305 on the seventh floor;

[0099] The above step (20-2) seventh floor (98.781-100.902m) Figure 11 The main work contents of the floor construction in room 11305 include: roughening the construction joints, surveying and setting out, hoisting and installing CA03 and CA02 modules, installing embedded pipes, reinforcing bars, embedded parts, and grounding, setting up formwork and pouring concrete, completing the welding of the SG support plate, completing the installation of the CA01 accessory plate, and the third SCC of CA01. Key construction challenges: ① The procurement cycle for stainless steel plates is 3-6 months, requiring advance procurement based on the on-site construction progress. The process evaluation for welding stainless steel embedded parts and weldable sleeves must be completed before the embedded parts are processed; ② The stainless steel embedded parts are heavy and difficult to install and adjust. Welded angle steel supports are required for reinforcement during installation, and temporary supports must be erected for on-site adjustments.

[0100] (21) Lifting of CA03;

[0101] (22) Lifting of CA02 module;

[0102] (23) Post-cast strip at CA02;

[0103] (24) Lifting of CB26 modules;

[0104] (25) Elevator shaft reserved area;

[0105] (26) Painting work on the floor of room 11209;

[0106] (27) Lifting of CS17 / SPL11;

[0107] (28) KQ22 / 23 equipment module hoisting and introduction

[0108] (29) Lifting of CA32 / CA33;

[0109] Construction of the remaining sections of the sixth and seventh floors (98.171-99.545m) in steps (22) to (29) above. Figure 12The main work contents include: roughening the fifth floor, surveying and setting out, hoisting and installing CA02, CB26 / 27 / 28 modules, and P05 / 27 / 28 through-fittings, PXS pipe installation, electrical conduit installation, reinforcement, embedded parts, grounding and formwork installation, formwork erection and concrete pouring, installation of accessory plates on CA02 modules, and SCC of CA02 walls. Key construction challenges: 1) Welding of the CA02 body and leak detection groove is a major constraint on this floor. The scaffolding used for hoisting, positioning, adjusting, welding, and painting of CA02 and #5 sub-formwork has a long service life, significantly impacting civil construction; 2) The north-side reinforcement conflicts with the scaffolding used for P05 / 27 / 28 through-fittings. Before construction begins, the construction logic of P05 / 27 / 28 through-fittings and the lower reinforcement should be communicated to reduce overlap.

[0110] (30) Construction of the concrete structure in the CA32 / 33 area of ​​the eighth floor (102.2m platform);

[0111] The above step (30) eighth layer (100.902-102.489m) CA03 back side construction ( Figure 13 The main tasks include: roughening the sixth floor, surveying and setting out, installing leakage channels and pre-embedded pipes, installing reinforcing bars and grounding, and setting up formwork and pouring concrete.

[0112] Second construction logic line:

[0113] (31-1) Lifting of CB37 / CB38 / CB39;

[0114] (31-2) Lifting of CB27 / CB28 / CB34 / CB35 / CB36 / CB44 / CB45 / CB46 / CB47;

[0115] (32) Construction of the concrete structure on the east side of the sixth and seventh floors;

[0116] The above steps (31-1) to (32) involve the construction of the sixth and seventh floors (98.171-101.575m, locally 100.914m). Figure 14 The main work contents include: roughening the construction joint, measuring and setting out within the CV, installing CB41 / CB42 / CB43 modules, CB34 / 35 / 36 / 37 / 38 / 39 / 44 / 45 / 46 / 47 modules, and P19 / 20 / 22 through-hole components, installing embedded pipes, installing reinforcing bars, embedded parts, and grounding, setting up formwork and pouring concrete, welding SG support plates and installing CA01 accessory plates through-hole components, and CA01 First SCC. Key construction challenges include: leaving construction joints for personnel gates and reserving positions for embedded bolts in 18 steel columns.

[0117] Key challenges and difficulties in construction:

[0118] like Figure 15As shown, in order to quickly form the 102m platform, rooms 11206 / 11207 / 11208 / 11209 were sealed off to create the conditions for the CA3X module to be placed in advance. The 6th and 7th floors on the east side of the reactor building were combined and poured together. Modules CB41 / CB42 / CB43, CB34 / 35 / 36 / 37 / 38 / 39, and 44 / 45 / 46 / 47 were introduced simultaneously. Support measures and deformation detection measures were added to the modules on each side. By layering the material and controlling the pouring speed, the overall pouring height was about 3.4m. This solved the basic conditions for the placement of the CA3X module and quickly achieved the overall pouring of the 102m platform.

[0119] (33-1) Painting of the floor in rooms 11206 / 11207;

[0120] (33-2) Painting work on the floor of room 11208;

[0121] (34) The installation unit hoisted the injection box in room 11206, the SPL20 / SPL09 / 43 was hoisted, the installation unit hoisted the Q233 equipment module, and the pipeline was pre-introduced into room 11206;

[0122] (35) The installation unit hoisted the injection box in room 11207, the installation unit introduced the nuclear-grade large-diameter pipeline, the SPL10 / 21 / 44 was hoisted, and the installation unit hoisted the Q223 equipment module into the room;

[0123] (36) Hoisting of equipment module 1123-02-40 in room 11208;

[0124] (37-1) Lifting of CA37;

[0125] (37-2) Lifting of CA34 / CA35;

[0126] (37-3) Lifting of CA36;

[0127] (38) Construction of the concrete structure in the CA34-37 area of ​​the eighth floor (102.2m platform);

[0128] The above step (38) involves the construction of the south side of the eighth floor (100.902-102.997m). Figure 16 The main tasks include: roughening the sixth layer, surveying and setting out, completing the P11 through-hole installation, installing the leakage channel and embedded parts, installing the reinforcing bars, embedded parts and grounding, and setting up the formwork and pouring concrete.

[0129] The above step (38) involves the construction of the eighth floor (101.575-102.184m). Figure 17The main tasks involved: After the CA3X series modules were in place, some were connected to the CA01, CA02, and CA05 large structural modules, and others to the CB structural modules. Based on the CAP1000 reactor building reinforcement layout diagram, it was observed that a row of vertical reinforcing bars was arranged on the outer side of each CB module. These bars extended approximately 600mm beyond the top elevation of the CB module. Furthermore, these reinforcing bars were arranged adjacent to the CB modules, leading to frequent conflicts between the reinforcing bars and the module's edge lines during the CA3X series module placement and hoisting process. Before module placement, actual measurements of the module's edge lines were taken on-site, and the measured data was reflected in the module placement area for early identification. During the installation of the north-south bottom reinforcement bars of the CA34 module's upper reinforcement, installation was impossible due to a conflict with the electrical penetrations on the south side of the module. The focus was on analyzing the relationship between the process pipeline reinforcement bars and their relative positions. Special attention was paid to potential conflicts between process pipelines and reinforcement bars. Main tasks for the 102.184m floor slab: installation of CA32-37 modules, installation of reinforcing bars, embedded bolts, grounding and formwork, and pouring of approximately 450 cubic meters of concrete.

[0130] The 102.184m platform forms FCD+16.5; the main work content below 102.184m in the above steps ( Figure 18-19 ): 7-1 floor concrete curing completed, surveying and layout completed, room decoration completed for 11206-11209, installation of injection tanks, KQ22 / 23, Q223 / Q233 / Q240 modules completed, steel structure installation below 102.184m completed, CA02 / CA05 self-compacting concrete pouring completed, CA01-G / H / I / B wall pouring completed, CA32-37 module installation completed. Main equipment introduced: injection tanks, KQ22 / 23, Q223 / Q233 / Q240 modules; SPL steel structure installation; CA32-37 module installation.

[0131] The main work content below step 102.184m above ( Figure 20-21 ): CA02 and CA05 wall SCC, post-cast strip pouring completed, CA32 installed; KQ22 / KQ23 / CS17 / SPL11 installed, CA05 wall SCC, CA33 installed; Q223 module installed, CA05 wall SCC, CA34 installed; SPL44 / MT2B / SPL10, 21 installed CA05 SCC, CA35 installed; CA01 SCC, Q240 module installed, CA36 installed; SPL43 / MT2A / SPL09, 20 installed, CA01 SCC, CA37 installed; surveying and setting out, reinforcement and embedded parts installation, formwork erection and concrete pouring.

[0132] The first and second construction logic routes are merged:

[0133] (39) Lifting of tower SPL52 / SPL60 / SPL61, installation of unit bubbling and heat exchanger introduction;

[0134] (40) Lifting of CA55 / CA56 / CA57;

[0135] (41) Construction of the concrete structure on the west side of the ninth floor (110.7m platform)

[0136] (42) Erection of SPL54 steel columns in CA32 / 33 area;

[0137] (43) Erection of SPL54 steel columns in area CA34-37;

[0138] (44) The installation unit hoisted the Q305 equipment and introduced the core makeup water tanks A / B;

[0139] (45) SPL18 hoisting;

[0140] (46) CA58 installation;

[0141] (47) The main steam and main water supply pipelines of the installation unit are introduced;

[0142] (48) Installation unit Q402 introduced;

[0143] (49) SPL51 hoisting and installation;

[0144] (50) Construction of the concrete structure on the east side of the ninth floor (110.7m platform);

[0145] The above step (50) involves the construction of the ninth floor (102.184-105.589m). Figure 21 The main tasks include: installation of steel columns and electrical penetrations, hoisting of two core water tanks and Q305 modules, and installation of CS11, SPL18, ladders and steel grids.

[0146] The 110.7m platform forms FCD+21.5; the above steps (50) ninth layer (102.184-105.589m) construction ( Figure 21 The main tasks include: installation of steel columns and electrical penetrations; installation of equipment within the IRWST and Q402 modules; installation of SPL51 and other steel structures; installation of CA55-58 modules; and installation of the 110-meter platform's reinforcing steel reinforcement, formwork, and concrete pouring. The CA5X series modules consist of four steel structure modules: CA55, CA56, CA57, and CA58. Modules CA55-CA57 are located on the west side of the reactor building, while module CA58 is located on the southeast side. The mounting brackets for modules CA55-CA58 are prone to deformation and deviation, requiring high precision and close monitoring.

[0147] (51) The steel structure above the 110.7m platform is introduced and installed, and SPL35 / SPL36 / SPL37 / SPL38 / SPL19 / CH55 / CH58 are hoisted.

[0148] (52) The installation unit hoisted the CVTH to FCD+24.5;

[0149] The third construction logic line:

[0150] (53-1) Construction of the concrete structure of the B-level shielded factory building;

[0151] (53-2) Construction of the C-layer concrete structure of the shielded factory building;

[0152] like Figure 22 As shown, the main construction work of the CV bottom head B and C layers (89.789-94.666m) in the above steps (53-1~53-2) is as follows: roughening the bottom slab and the construction joint position of the B layer, measuring and setting out, tying the reinforcing bars, installing the embedded items, setting up the formwork, and pouring the concrete.

[0153] The construction of layers B and C (89.789-94.666m) presents several challenges, including a large workload and complex concrete curing. A supervisory team needs to be established to oversee concrete curing, with a clear shift schedule for on-site inspections and supervision. Concrete placement and vibration at the bottom cap are particularly difficult. The CV bottom cap has a small angle with the horizontal plane and is constructed within CR10 steel components, making placement and vibration operations challenging. During on-site concrete pouring, the position of the front line must be strictly controlled to prevent the large working area from overwhelming the vibrator operators. A chute or cascade system should be used to insert the vibrator into the angled area, secured with steel pipes and vibrators. The vibrator is brought in by inserting the steel pipe into the angled area to ensure the concrete compacts the wedge-shaped region.

[0154] (53-3) Construction of the concrete structure of the D layer of the shielded factory building;

[0155] (53-4) Construction of the concrete structure of the RC side of the E layer of the shielded factory building;

[0156] like Figure 23-24As shown in the above steps (53-3~53-4), the main construction work of the CV bottom head D and E layers (94.666-100.000m) includes: roughening the construction joint positions of layers C and D, measuring and setting out, erecting the cast-in-place floor slab support system in the east corridor area, tying reinforcing bars, installing embedded parts and sleeves, erecting the formwork for the east corridor, erecting the outer arc-shaped formwork, and pouring concrete. Key construction challenges: The cross-section of the corridor area in layers D and E is an irregular shape, narrow at the top and wide at the bottom, and the inner side, close to the CV bottom head, gradually narrows from bottom to top, making the structure relatively complex. The operating space is narrow, making formwork installation and the erection and dismantling of the support frame very difficult. During the actual erection process, the frame needs to be inspected in sections to ensure its reliability and safety.

[0157] (53-5) Construction of the RC1 layer concrete structure of the shielded workshop;

[0158] (54) Concrete pouring of floor slabs in Zone 4 of the auxiliary plant (elevation 101.5m);

[0159] (55) The lower personnel gate of the installation unit is hoisted and positioned;

[0160] (56-1) Construction of the RC2 layer concrete structure of the shielded workshop;

[0161] (56-2) Construction of the RC3-layer concrete structure of the shielded workshop;

[0162] (56-3) Construction of the RC4-layer concrete structure of the shielded workshop;

[0163] The main construction contents of the above construction steps (56-1~56-3) for RC2~4 layers are as follows: construction joint treatment, positioning and layout, rebar tying, installation of embedded parts, welding of embedded parts at gate positions, installation of electrical penetrations, installation of main steam and main water supply penetrations, erection of support systems for personnel gates and equipment gates, formwork installation, and concrete pouring. Figure 25 As shown, the key difficulties in construction include the concentricity alignment requirements of the electrical penetrations at this construction site, making the positioning and installation of the penetrations difficult. On-site, for penetrations with such requirements, positioning can be achieved using a simulation tool or a centering device for measurement. After the position is accepted, the construction tools for the penetrations are reinforced to prevent displacement during concrete pouring. Simultaneously, the formwork erection at the location of the electrical through-wall penetrations is challenging. During formwork prefabrication, 1m*1m square holes are pre-reserved. After the formwork is installed, the holes are sealed to prevent wasting manpower and resources on on-site drilling. During concrete pouring, holes are reserved on both sides of the penetration location to facilitate observation of the concrete pouring process at the penetration location.

[0164] (57) Concrete pouring of floor slabs in Zone 4 of the auxiliary plant (elevation 110.1m);

[0165] (58) The personnel gate at the upper part of the installation unit is hoisted and positioned;

[0166] After the lower personnel gates were hoisted and positioned, the RC side concrete structure construction of the 2nd to 4th floors of the shielded plant was carried out. The 110m floor slab of the auxiliary plant in Zone 4 needed to be welded on the outside of the RC. The construction logic was optimized on site, and the concrete pouring of the Zone 4 floor slab was completed in advance. The RC 3rd and 4th floor shielding walls and the 110.044m floor slab were poured simultaneously. The steel beams were welded in advance, and the scaffolding was used as a temporary support structure for the steel beams. The scaffolding was removed after the concrete strength of the shielding wall reached 75%. The upper personnel gates were positioned in advance, shortening the closure time of the RC side of the shielded plant.

[0167] (59) Construction of the RC5-layer concrete structure of the shielded workshop;

[0168] (60) Construction of the RC6 / 7-story concrete structure of the shielded workshop;

[0169] like Figure 26-34 As shown, the main construction contents of the above construction steps (57~60) for RC5-7 layers are: construction joint treatment, positioning and layout, rebar tying, installation of embedded parts, installation of embedded sleeves, formwork erection, and concrete pouring. The key difficulties in this construction area include the presence of four junction box locations within the RC5 layer construction area, with numerous embedded parts located close to these junction boxes. During concrete pouring, the concrete in these locations is difficult to compact due to the influence of the junction boxes. In actual operation, it is necessary to pay attention to opening holes to observe the internal condition of the formwork, and simultaneously use side formwork for auxiliary hammering and vibration to ensure that the concrete in these locations reaches a compacted state. Additionally, for RC6 / 7 layers, because the SC module connection section is poured simultaneously, with a non-removable formwork used as a partition, and the concrete grades of the two parts are different, it is necessary to strictly follow the predetermined pouring sequence during the pouring process.

[0170] Fourth construction logic line:

[0171] (61) Reinforcing steel binding on the west side of SC1 floor of E floor (shielded factory building) before its placement;

[0172] (62) Construction of E-layer and SC1-layer;

[0173] (63) Construction of remaining steel reinforcement, formwork and concrete pouring for E-layer and SC1-layer;

[0174] (64-1) Construction of SC2-3 floors;

[0175] (64-2) SC second and third layer concrete pouring;

[0176] (64-3) Construction of SC4-5 floors;

[0177] (64-4) SC fourth and fifth layer concrete pouring;

[0178] The main construction contents of the above construction steps (61~64-4) for SC1-SC5 layers are as follows: roughening the construction joint, cleaning the base layer, installing the reinforcing steel before hoisting, hoisting the modules, sealing the gaps inside the modules, installing the formwork without dismantling, and pouring concrete.

[0179] The construction logic of Articles 3 and 4 is combined into one route:

[0180] (65-1) Construction of SC6-7 floors (reinforcing cage, etc.);

[0181] (65-2) Concrete pouring for the 6th and 7th layers of SC;

[0182] (65-3) Construction of SC8-9 floors;

[0183] (65-4) Concrete pouring for the 8th and 9th floors of SC;

[0184] (65-5) Construction of SC10-11 floors;

[0185] (65-6) Concrete pouring for the 10th-11th layers of SC;

[0186] (65-7) Construction of SC12-14 floors;

[0187] (65-8) Concrete pouring for layers 12-14 of SC;

[0188] (65-9) Construction of SC15 floor;

[0189] (65-10) SC 15th layer concrete pouring;

[0190] (65-11) Construction of SC16 floor;

[0191] (65-12) Concrete pouring for the 16th floor of SC;

[0192] The main construction contents of the above construction steps (65-1~65-12) for layers SC6-SC16 are: roughening the construction joint, cleaning the base layer, installing the reinforcing steel before hoisting, hoisting the modules, sealing the gaps inside the modules, installing the formwork without dismantling, and pouring concrete. The key difficulties in this part of the construction include: before pouring the SC16 layer, a reasonable working platform must be set up on the outside of the module to ensure the boundary and safety of the construction; at the same time, since the top triangular area can only be manually poured through 50mm vent holes, it is necessary to prepare the pouring tools in advance and increase the manual labor input to ensure the efficiency of the SC16 layer concrete pouring and the compactness of the internal concrete.

[0193] (66) Dome hoisting FCD+30.5;

[0194] (67) Construction of the first, second and third layers of concrete structure on the dome slope, and completion of the fourth layer of steel reinforcement binding;

[0195] The above construction steps (67) mainly include the following construction contents for the first, second, and third layers of the dome slope: construction joint cleaning, rebar tying, rebar welding, embedded part installation, embedded sleeve installation and welding, formwork installation, and concrete pouring. The key difficulties in the slope construction include the fact that due to the special structure of the dome slope, honeycomb pitting is easily formed after the concrete is poured. On-site, during the formwork installation stage, air vents and observation holes need to be made on the wooden boards, and the boards need to be continuously tapped during pouring to promote the release of gas inside the formwork. At the same time, before the concrete is poured in the third section of the slope, the through sleeve needs to be drilled and installed. The verticality requirement is high during the full installation process. On-site, elevation points should be set around the top of the sleeve to ensure that the verticality meets the design requirements.

[0196] (68) Hoisting and installation of CB20 modules;

[0197] (69-1) Concrete pouring at the bottom of the water tank;

[0198] (69-2) Construction of the first, second, and third layers of concrete structure on the outside of the water tank;

[0199] (69-3) Construction of the first and second layers of concrete structure inside the water tank;

[0200] (70) The dome concrete structure is completed (construction of the water tank top slab concrete structure) FCD+35.5.

[0201] The main construction contents of the above construction steps (69-1~70) are: welding of embedded sleeves, positioning and layout, cleaning of construction joints, binding of reinforcing bars, installation of embedded parts, installation of formwork, and concrete pouring.

[0202] The key challenges in constructing the aforementioned sections include the welding of the inner and outer sleeves of the through-type components. Since the outer sleeve was already installed and poured at the bottom of the water tank before its placement, the inner sleeve needs to pass through the outer sleeve and fit tightly against the bottom of the tank. During on-site installation of the inner sleeve, strict control must be exercised over the alignment of the inner and outer sleeves with the connecting sealing plate to ensure the accuracy of the inner sleeve installation. Simultaneously, because the fourth inclined section is in a closed position, the flow of the concrete cannot be observed. Therefore, strict control must be exercised over the concrete's spread during the actual on-site pouring process to ensure good fluidity. Furthermore, observation must be conducted from the outside during the pouring process, and the outer concrete should only be laid after it has flowed into the outer formwork to ensure the compactness of the concrete at the bottom and on the inclined surface of the water tank.

[0203] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular division structure for the reactor building of a CAP-type nuclear island, characterized in that, The construction area was divided into four zones; The first construction area begins with the foundation slab of the nuclear island plant, including CVBH and CA01-05 modules, and ends in the CA32-34 area on the eighth floor. The second construction area continues the fifth floor concrete structure from the first section, including CB34-39, CB27-28, and CB44-47 modules, and ends in the CA35-37 area on the eighth floor. The combined construction area of ​​the first and second sections continues the concrete structure on the east side of the seventh floor, including the concrete structure on the east side of the eighth floor, as well as the west tower SPL52, SPL60-61 modules, bubblers, heat exchangers, SPL54, SPL18, SPL51, and CA58 modules, the west CA55-57 module, and the east side area of ​​the ninth floor, ending at CVTH. The third construction area starts from the AD layer, E layer RC side, and 1st layer RC side of the shielded workshop and ends at the 6th-7th layer RC side of the shielded workshop; the fourth construction area starts from the reinforcement before SC is in place and ends at SC2-5; the combined construction area of ​​the third and fourth parts starts from SC6-16 and ends at the completion of the dome.

2. A modular construction logic method for CAP-type nuclear island reactor buildings, characterized in that, The plan outlines four construction logic lines; The first construction logic line begins with the pouring of the concrete foundation slab of the nuclear island plant, completes the hoisting of CVBH and CA01-05, and ends with the completion of the concrete structure construction in the CA32-34 area of ​​the eighth floor. The second construction logic line continues the concrete structure construction of the fifth floor in the first part, completes the hoisting of CB34-39, CB27-28, and CB44-47, and ends with the completion of the concrete structure construction in the CA35-37 area of ​​the eighth floor. The combined route of the first and second construction logic lines continues the concrete structure construction of the east side of the seventh floor, completes the concrete structure construction of the east side of the eighth floor, hoisting of the west towers SPL52 and SPL60-61, introduction of bubbling devices and heat exchangers, hoisting of modules SPL54, SPL18, SPL51, and CA58, hoisting of the west CA55-57 module, and the construction of the east side of the ninth floor concrete structure, ending with the completion of the CVTH hoisting. The third construction logic line starts from the construction of the concrete structure of the AD layer, E layer RC side, and 1st layer RC side of the shielded plant, and ends at the end of the construction of the concrete structure of the 6th and 7th layers RC side of the shielded plant; the fourth construction logic line starts from the binding of the reinforcing bars before the SC is in place, and ends at the end of the concrete pouring of SC2-5; the combined route of the third and fourth construction logic lines starts from the hoisting and installation of SC6-16 and the construction of the SC6-16 concrete structure, and ends at the completion of the dome concrete structure.

3. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 2, characterized in that, The first construction logic line shall be constructed in the following order: Concrete pouring for the foundation slab of the nuclear island plant; CR10 hoisting; Construction of the concrete structure of the A floor of the shielded factory building; CVBH hoisting; CV lower pressure grouting; KQ11 equipment module hoisting; Construction of the first floor concrete structure of the reactor building; CA04 hoisting; CB65-66 hoisting; Lifting of CB51-54 and CB61-64; Construction of the second and third floor concrete structures; CA05 hoisting; CA01 hoisting; Lifting of CB21-25 and CB11-12; Concrete structure construction of the fourth, fifth, and sixth floor RV areas; Lifting of CB31-33 and CB41-43; Construction of the fifth floor concrete structure, excluding the RV area; Concrete structure construction and steel cladding installation for room 11504 on the sixth floor; Concrete structure construction of room 11305 on the sixth floor; CA03 hoisting; Construction of the concrete structure and steel cladding for room 11305 on the seventh floor; simultaneously... CA02 hoisting; Reserved area at CA02; CB26 hoisting; Elevator shaft reserved area; Floor painting work in room 11209; CS17 and SPL11 hoisting; KQ22-23 equipment module hoisting and introduction; CA32-33 hoisting; Construction of the concrete structure in the CA32-33 area of ​​the eighth floor.

4. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 3, characterized in that, The second construction logic line shall be constructed in the following order: Lifting of CB34-39, CB27-28, and CB44-47; Construction of the sixth and seventh floor concrete structure; Floor painting work in rooms 11206-11208; The installation of the injection box in room 11206, the installation of SPL20, SPL09, and SPL43, the installation of the Q233 equipment module, and the pre-introduction of pipelines into room 11206 were all carried out simultaneously. The installation of the safety injection tank in room 11207, the introduction of nuclear-grade large-diameter pipelines, the installation of SPL10, SPL21, and SPL44 pipes, and the installation and introduction of the Q223 equipment module; simultaneously, Equipment module hoisting in room 11208, 1123-02-40; CA34-CA37 module hoisting; Construction of the concrete structure in the CA34-37 area of ​​the eighth floor.

5. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 4, characterized in that, The combined construction routes of Article 1 and Article 2 shall be constructed in the following order: The west towers SPL52 and SPL60-61 were hoisted, and the bubbling device and heat exchanger were introduced. CA55-57 hoisting; Construction of the concrete structure on the west side of the ninth floor is underway; simultaneously... Erection of SPL54 steel columns in the CA32-33 area on the east side; Erection of SPL54 steel columns in CA34-37 area; Q305 equipment hoisting, core makeup water tanks A / B introduced; SPL18 hoisting; CA58 installation; Main steam and main feedwater pipelines are introduced; Q402 introduced; SPL51 hoisting and installation; Construction of the concrete structure on the east side of the ninth floor; The steel structure above the 110.7m platform was introduced and installed, and SPL35-38, SPL19, CH55, and CH58 were hoisted. CVTH hoisting.

6. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 5, characterized in that, The third construction logic line shall be constructed in the following order: Construction of the concrete structure of the shielded factory building's AD layer, E layer RC side, and 1st layer RC side; simultaneously... Concrete pouring for the floor slabs of auxiliary plant area 4; The lower personnel gate was hoisted and positioned. Construction of the RC side concrete structure for floors 2-4 of the shielded factory building; simultaneously... Concrete pouring for the floor slabs of auxiliary plant area 4; The upper personnel gate was hoisted and positioned; Construction of the 5-story RC side concrete structure of the shielded factory building; The RC side of the 6th and 7th floors of the shielded plant, the 4th and Nth walls of the auxiliary plant, and the crane rail brackets of the fuel plant were constructed simultaneously.

7. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 6, characterized in that, The fourth construction logic line shall be constructed in the following order: Reinforcing steel binding before SC placement; Construction of E-level SC1; Construction of concrete pouring for E layer SC1; SC2-5 construction, SC2-5 concrete pouring.

8. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 7, characterized in that, The combined construction routes of Articles 3 and 4 shall be constructed in the following order: SC6-16 construction, SC6-16 concrete pouring; Dome hoisting; Construction of the dome's sloping concrete structure; CB20 module hoisting and installation; Construction of the concrete structure of the water tank; The concrete structure of the dome has been completed.

9. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 3, characterized in that, In the first construction logic line: to Construction proceeds sequentially. and exist Simultaneous construction afterwards to exist Then construction proceeded in sequence. to Construction proceeds sequentially. exist and Subsequent construction, exist Subsequent construction, exist Construction will proceed later.

10. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 4, characterized in that, In the second construction logic line: to exist Then construction proceeded in sequence. , , exist Simultaneous construction afterwards exist , , Subsequent construction, exist Construction will proceed later.

11. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 5, characterized in that, In the combined construction logic routes of Article 1 and Article 2: to exist Then construction proceeded in sequence. exist Subsequent construction, exist , Subsequent construction, , , exist Simultaneous construction afterwards exist , , Subsequent construction, exist Subsequent construction, to exist Then construction proceeded in sequence. exist and Subsequent construction, exist Construction will proceed later.

12. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 6, characterized in that, In the third construction logic line: , , , Construction proceeds sequentially. forward to Construction proceeds sequentially. forward Construction will proceed in sequence.

13. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 7, characterized in that, In the fourth construction logic line: to Construction will proceed sequentially.

14. The modular construction logic method for CAP-type nuclear island reactor buildings according to claim 8, characterized in that, In the combined construction logic routes of Articles 3 and 4: to exist Construction will proceed later.

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