Assembly integral type subway station structure system based on intelligent building and construction method

Abstract

The invention relates to an assembled integral type subway station structure system and a construction method. The construction method comprises the following steps that (1) a cast-in-place bottom plate is constructed; (2) constructing a side wall of a negative second floor; (3) constructing a prefabricated column of a negative second layer, hoisting the prefabricated column, and connecting the prefabricated column with a reserved joint bar of a bottom plate through grouting of a reinforcing steel bar sleeve; (4) assembling a negative two-layer laminated structure, and installing a prefabricated top longitudinal beam and a laminated slab part; (5) negative first-layer side wall construction: constructing a negative first-layer cast-in-place side wall; (6) negative first-layer prefabricated columns are constructed, the prefabricated columns are hoisted, and negative second-layer composite floor slab reserved joint bars are connected; and (7) a top plate laminated structure is assembled, and waterproof concrete is poured to form a top plate cast-in-place laminated layer after the prefabricated top longitudinal beams and the laminated plate parts are installed. Through combination of prefabrication and cast-in-place, on-site wet operation is reduced, the construction period is shortened, the construction efficiency is improved, the structural integrity and stability are ensured, and the strength and durability are ensured by adopting a steel bar sleeve grouting technology at the joint.

Description

Technical Field

[0001] The present invention belongs to the field of urban rail transit engineering technology, and specifically relates to an assembled integral subway station structure system and construction method based on intelligent construction. The subway station structure system adopts an assembly technology that combines cast-in-situ and prefabrication, and is particularly suitable for rapid construction scenarios under complex geological conditions in urban central areas. Background Art

[0002] With the acceleration of urbanization in my country, the urban population has grown rapidly, the operating mileage of subways has continued to extend, and the scale of subway construction has also continued to expand. In the construction of traditional subway stations, cast-in-place concrete structures are generally used. This structure can effectively waterproof by utilizing the inherent waterproof properties of waterproof concrete. However, there are some technical deficiencies in cast-in-place concrete construction:

[0003] 1. Long construction period: Cast-in-place construction of underground stations usually takes 12-18 months, of which concrete curing takes up 30% of the construction period;

[0004] 2. Difficulties in quality control: On-site operations are affected by changes in ambient temperature and humidity, as well as on-site management, resulting in a concrete structure strength compliance rate of only 82-87%;

[0005] 3. Extensive construction site management: Traditional construction methods lack detailed management, and on-site construction management methods and technologies have not been effectively integrated and upgraded with the new generation of information technology;

[0006] 4. Serious waste of resources: the turnover of the template does not exceed 5 times, and the material loss rate is as high as 18%.

[0007] Despite the aforementioned issues with cast-in-place concrete underground structures, prefabricated buildings have been widely used in ground-level construction due to their advantages, including fast construction speed, ease of industrialized intelligent production of prefabricated components, and easy quality assurance of precast concrete components. For example, patent CN118997220A proposes a fully prefabricated subway station structure consisting of multiple prefabricated standard circumferential components, offering a high assembly rate and fast construction speed. However, due to the numerous structural joints, these joints can easily become weak links in waterproofing, posing a risk of leakage and impacting the normal operation of the subway station. Patent CN119640838A proposes a method for constructing the main structure of an assembled subway station based on a cover-and-cut reverse construction approach. In this method, the base, middle, and top plates of the subway station are all prefabricated. However, the thickness of the base and top plates is relatively large, and the fully prefabricated plate components are extremely heavy, placing extremely high demands on lifting equipment. Furthermore, the fully prefabricated base and top plates result in the station structure not being sealed into a ring with cast-in-place concrete on the soil-facing side, lacking an effective self-waterproofing system and posing a potential waterproofing safety hazard. Furthermore, the use of dry connections between components in a fully prefabricated structural system results in poor underground structural integrity and joint seismic performance. Under strong earthquakes, structural joints may fail earlier than prefabricated components. Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an assembled integral subway station structural system and a construction method thereof, which forms the overall structural system of the subway station by combining partial prefabrication and partial cast-in-place.

[0009] The object of the present invention is achieved through the following technical solutions:

[0010] A construction method for assembling an integral subway station structure system comprises the following steps:

[0011] (1) Cast-in-place base plate construction: Waterproof concrete is poured on site to form a cast-in-place base plate, and vertical dowel bars for the second precast column of the negative second floor are reserved in the base plate; waterproof concrete is poured on site to form the base plate of the station, and vertical dowel bars for connecting precast columns are reserved in it, providing a foundation for the connection of subsequent structures.

[0012] (2) Construction of the side wall of the negative second floor: Cast the second side wall of the station ground floor (cast-in-place side wall 2) on the cast-in-place base plate and ensure that it is fixed to the base plate; cast the side wall of the station ground floor on the base plate and ensure that the side wall is fixed to the base plate to form the lateral support structure of the negative second floor.

[0013] (3) Construction of precast columns on the second negative floor: hoist the second precast column and connect the vertical dowels reserved in the bottom plate through the pre-buried steel sleeve grouting technology at the bottom of the second precast column; hoist the precast column and connect the vertical dowels reserved in the bottom plate through the pre-buried steel sleeve grouting technology to achieve a firm connection between the precast column and the bottom plate.

[0014] (4) Assembly of the composite structure of the negative second floor: After the concrete of the cast-in-place side wall reaches the standard, install the precast top longitudinal beam 2 so that its two ends are supported on the precast column 2, and then install the precast composite slab part 2 to support the upper part of the precast top longitudinal beam 2, and pour concrete to form an integral composite floor slab including the cast-in-place layer (cast-in-place composite slab part 2); after the cast-in-place side wall concrete reaches a certain strength, install the precast top longitudinal beam and the precast composite slab part, and form an integral composite floor slab by pouring concrete to achieve the integrity and rigidity of the negative second floor structure.

[0015] (5) Construction of the side wall of the first basement floor: After the strength of the cast-in-place composite slab part 2 of the second basement floor reaches 70%, the first basement floor cast-in-place side wall is constructed; when the strength of the cast-in-place composite slab part of the second basement floor reaches 70%, the first basement floor cast-in-place side wall is constructed to provide support for the upper structure.

[0016] (6) Construction of precast columns on the first underground floor: After the strength of the cast-in-place composite slab part of the composite floor reaches 100%, the precast columns are hoisted and connected to the reserved vertical dowels of the second underground composite floor through grouting of the pre-embedded steel sleeves at the bottom of the precast columns; after the strength of the cast-in-place composite slab part of the second underground composite floor reaches 100%, the precast columns are hoisted and connected to the reserved vertical dowels through grouting technology to complete the vertical support of the first underground floor structure.

[0017] (7) Assembly of roof composite structure: Install prefabricated roof longitudinal beams supported on prefabricated columns, lay prefabricated composite panels, and then pour waterproof concrete to form the roof cast-in-place composite layer. Install prefabricated roof longitudinal beams supported on prefabricated columns, lay prefabricated composite panels, and then pour waterproof concrete to form the roof cast-in-place composite layer, finally completing the construction of the entire subway station structure system.

[0018] Floor slabs and side walls: The floor slabs and side walls of subway stations are thick, heavy, and irregularly shaped. If prefabricated in blocks, the splicing of components would result in numerous joints on the soil-facing side of the structure. Therefore, cast-in-situ concrete construction is used to effectively ensure the structural integrity and waterproofing. Columns: Columns are fully prefabricated, with vertical reinforcement sleeves reserved at their bases. These prefabricated columns are industrially manufactured in a factory and, after being hoisted on-site, are connected to the floor and floor slabs of the structure through sleeve grouting. Beams: Beams are prefabricated composite beams with shear keys installed at their ends. These prefabricated composite beams are factory-fabricated and, after being hoisted on-site, the upper concrete is poured to connect them to the floor slabs. Intermediate floor and roof slabs: The intermediate floor and roof slabs are prefabricated composite slabs. These prefabricated composite slabs are factory-fabricated and, after being hoisted on-site, the upper concrete is poured to form a monolithic structure with the composite beams. Prefabricated component production: Prefabricated components are industrially produced in factories, which can effectively guarantee the quality of the concrete of the components and reduce the scope and time of wet operations on site. Synchronous production: Prefabricated components can be produced simultaneously in the factory while the subway station foundation pit is being constructed, which is of great protection and significance to subway stations with tight construction schedules. Waterproof performance of underground structures: The side walls and bottom plates of the underground structure are constructed with cast-in-place concrete, and the top plate is made of composite slabs, which ensures the integrity and bearing capacity of the structure. The outermost layer of the entire underground station structure has a circle of closed cast-in-place waterproof concrete structure. The structure has good self-waterproofing performance. Combined with the use of waterproof membranes for structural outsourcing, it can effectively guarantee the waterproof performance of the underground station during normal operation. The entire construction method ensures the stability and safety of the structure through step-by-step and phased construction. At the same time, the combination of prefabricated components and cast-in-place concrete improves construction efficiency and quality.

[0019] As a preferred embodiment, in step (4), shear keyways are provided at the supporting nodes of the precast top longitudinal beam 2 and the precast column 2, and a rigid connection is formed after the composite floor concrete is poured; in step (7), shear keyways are provided at the supporting nodes of the precast top longitudinal beam 1 and the precast column 1, and a rigid connection is formed after the composite layer concrete is poured.

[0020] As a preferred method, after the cast-in-situ superimposed layer of the top plate formed in step (7) has been cured to the standard, a waterproof membrane is fully applied on its outer surface and bent downward at the junction of the top plate and the cast-in-situ side wall of the first basement floor.

[0021] As a preferred method, precast column 1 and precast column 2 are pre-embedded with bottom embedded steel sleeves during production, and top cantilevered corbels are provided.

[0022] As a preferred embodiment, the bottom reinforcement of the precast composite panel part of the precast composite panel part one extends out of the concrete block of the precast composite panel part one to form a bottom reinforcement extension section, and the bottom reinforcement extension sections of adjacent precast composite panel parts one are welded together;

[0023] The bottom reinforcement of the precast composite plate part of the second precast composite plate extends out of the concrete block of the second precast composite plate part to form a bottom reinforcement extension section, and the bottom reinforcement extension sections of adjacent second precast composite plate parts are welded together.

[0024] As a preferred embodiment, the ends of the steel bars of the second cast-in-situ composite slab are bent to form an L-shaped end portion 1, and the vertical steel bars of the second precast column are bent at the top to form an L-shaped end portion 2; the adjacent L-shaped end portions 1 and 2 are welded;

[0025] The end of the steel bar of the precast composite plate part 1 of the composite layer is bent to form an L-shaped end 3, and the vertical steel bar of the precast column 2 is bent at the top to form an L-shaped end 4; the adjacent L-shaped end 3 and L-shaped end 4 are welded.

[0026] The bottom reinforcement (bottom reinforcement of the prefabricated part of the composite slab) of the prefabricated composite slab part (the first prefabricated composite slab part of the composite layer and the second cast-in-place composite slab part of the composite floor) extends to the edge of the component at the support position, and the upper reinforcement of the cast-in-place composite slab part is bent downward after extending to the edge. At the same time, the vertical reinforcement on the outer side of the side wall is bent inward and welded to the upper reinforcement of the cast-in-place part of the composite slab (the first cast-in-place composite slab part and the second cast-in-place composite slab part).

[0027] A construction method for an assembled monolithic subway station structure system based on intelligent construction, wherein RFID chips or barcode or QR code labels are embedded in prefabricated column 2, prefabricated column 1, prefabricated top longitudinal beam 2, prefabricated top longitudinal beam 1, prefabricated composite panel section 2, and prefabricated composite panel section 1 during factory production.

[0028] RFID chips, barcodes or QR code tags are associated with component 3D dimensions, reinforcement parameters and quality inspection data.

[0029] An assembled integral subway station structural system, comprising:

[0030] Cast-in-place external waterproof structure: cast-in-place bottom plate, cast-in-place side wall 2, cast-in-place side wall 1 form a continuous closed waterproof layer;

[0031] Prefabricated core components:

[0032] Precast column 2 and precast column 1: embedded steel sleeves are provided at the bottom and cantilevered corbels are provided at the top;

[0033] Precast top longitudinal beam 2 and precast top longitudinal beam 1: supported on the external cantilevered corbels;

[0034] Precast composite slab part 2 and precast composite slab part 1: built-in bottom reinforcement of the precast composite slab part;

[0035] Cast-in-place composite integral layer:

[0036] The prefabricated top longitudinal beam 2 and the prefabricated composite slab part 2 are combined with the cast-in-situ composite slab part 2 to form a negative second floor cast-in-situ composite integral layer;

[0037] The prefabricated top longitudinal beam 1 and the prefabricated composite slab part 1 are connected with the cast-in-situ composite slab part 1 to form a basement cast-in-situ composite integral layer.

[0038] The prefabricated integral subway station structural system has excellent waterproof performance: the cast-in-place base plate, cast-in-place side wall 1 and cast-in-place side wall 2 form a continuous closed waterproof layer, which effectively improves the waterproof performance of the entire structural system and can effectively prevent groundwater infiltration. It is suitable for environments such as subway stations that have extremely high waterproof requirements.

[0039] Prefabricated core components (such as prefabricated columns, prefabricated top and longitudinal beams, prefabricated composite slabs, etc.) are manufactured in advance in the factory, and only assembly and cast-in-place construction are required on site, which greatly shortens the construction period, reduces the amount of wet work on site, and improves construction efficiency and quality controllability.

[0040] The prefabricated components are tightly integrated with the cast-in-place sections through cast-in-place stacking, forming a monolithic structure on the first and second basement floors. This not only enhances the structural integrity and stability, but also improves its seismic resistance and load-bearing capacity. Standardized prefabricated components ensure consistent size and quality. Furthermore, the embedded steel sleeves and cantilevered corbels further improve the connection precision between components and reduce on-site construction errors.

[0041] Since prefabricated components are produced centrally in factories, material loss is lower, and the use of formwork and scaffolding is reduced during on-site construction, thereby reducing resource waste and environmental pollution, which is in line with the development concept of green buildings.

[0042] This structural system combines the advantages of cast-in-place and prefabrication, which not only ensures the strength and durability of the overall structure, but also meets the construction needs under complex geological conditions. It has strong applicability and flexibility.

[0043] The present invention effectively solves the problems of insufficient integrity and waterproof performance of fully prefabricated assembled structures. At the same time, it also solves the problems of long construction period and difficult component quality control of fully cast-in-place structures. The present invention is suitable for the construction of subway stations. The patent of the present invention realizes the complementary advantages of prefabricated structures and cast-in-place structures through innovative structural system design and construction process integration, providing a new technical solution for urban rail transit construction. In summary, the assembled integral subway station structural system has significant advantages in waterproof performance, construction efficiency, structural strength, construction accuracy and environmental protection. It is a subway station construction plan that is both technologically advanced and practical.

[0044] As a preferred method, the second precast column and the first precast column are connected to the lower structure by grouting pre-buried steel sleeves;

[0045] The upper reinforcement of the cast-in-place portion of the prefabricated composite slab part 1 is bent and welded to the vertical reinforcement of the cast-in-place side wall 1 at the edge support;

[0046] The upper reinforcement of the cast-in-place portion of the prefabricated composite slab part 2 is bent and welded to the vertical reinforcement of the cast-in-place side wall 2 at the edge support.

[0047] As a preferred method, the bottom reinforcement of the precast composite slab portion of the second and first precast composite slab portions is welded at the intermediate support, and the upper reinforcement of the cast-in-place portion of the composite slab is provided throughout the entire length. That is, in the precast composite slab connection structure at the intermediate support, the second precast composite slab portion is supported on the second precast top longitudinal beam, the bottom reinforcement of the precast composite slab portion of the second precast composite slab portion is welded at the support position, and the upper reinforcement of the cast-in-place portion of the composite slab is provided throughout the entire length.

[0048] The present invention has at least the following beneficial effects: It forms the overall structural system of a subway station through a combination of partial prefabrication and partial cast-in-place construction. The use of prefabricated components, such as prefabricated columns and prefabricated composite slabs, significantly reduces on-site wet work, shortens the construction period, and improves overall construction efficiency. The combination of cast-in-place and prefabricated components ensures structural integrity and stability. The connection between the cast-in-place portion and the prefabricated components utilizes techniques such as steel sleeve grouting, ensuring the strength and durability of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] To reveal the technical details of the embodiments of the present invention, the following is a brief introduction to the drawings involved in the embodiments. It should be emphasized that these drawings only illustrate several embodiments of the present invention and should not be considered as defining the scope of the invention. Those skilled in the art can deduce other relevant drawings based on these drawings without engaging in creative work.

[0050] Figure 1 The overall schematic diagram of the assembled integrated subway station structure of the present invention

[0051] Figure 2 This is a cross-sectional schematic diagram of the assembled integral subway station structure of the present invention;

[0052] Figure 3 This is a schematic longitudinal section of the assembled integral subway station structure of the present invention;

[0053] Figure 4 This is a structural diagram of the intermediate support of the prefabricated composite slab of the present invention;

[0054] Figure 5 This is a structural diagram of the edge supports of the prefabricated composite slab of the present invention;

[0055] Figure 6 This is a structural drawing of the prefabricated column of the present invention;

[0056] In the figure, 1-cast-in-situ bottom plate, 2-cast-in-situ side wall two, 3-precast column two, 4-precast top longitudinal beam two, 5-precast composite slab part two, 6-cast-in-situ composite slab part two, 7-cast-in-situ side wall one, 8-precast column one, 9-precast top longitudinal beam one, 10-precast composite slab part one, 11-cast-in-situ composite slab part one, 12-bottom reinforcement of precast composite slab part, 13-upper reinforcement of cast-in-situ composite slab part, 14-embedded reinforcement sleeve, 15-precast column main reinforcement, 16-external cantilever corbel. DETAILED DESCRIPTION

[0057] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0058] In the following, embodiments of the present disclosure are described in detail with the aid of accompanying drawings. However, please be aware that the present disclosure is not limited to the specific forms shown herein. Rather, it should be understood to encompass various variations, equivalents, and / or alternatives to the embodiments of the present disclosure. In describing the drawings, the same reference numerals will be used to indicate similar components.

[0059] In this disclosure, terms are used to illustrate specific embodiments and do not constitute limitations of this disclosure. In this context, the use of the singular also encompasses the plural, unless the text clearly indicates otherwise. In the process of explanation, it should be understood that terms such as "including" or "having" are intended to indicate the presence of a feature, quantity, step, operation, structural component, part, or combination thereof, and do not preclude the possibility or addition of one or more other features, quantities, steps, operations, structural components, parts, or combinations thereof.

[0060] It should be understood that while the following description provides extensive specific details intended to facilitate a comprehensive understanding of the example embodiments, those skilled in the art will appreciate that the example embodiments can be implemented without these specific details. For example, systems may be presented in block diagram form to avoid excessive detail that would obscure the clarity of the examples. In other cases, unnecessary details regarding well-known processes, structures, and techniques may be omitted to maintain clarity of the examples.

[0061] See also Figure 1-Figure 3 A construction method for assembling an integral subway station structure system comprises the following steps:

[0062] (1) Construction of cast-in-place base plate 1: After the station foundation pit is excavated to the bottom, waterproof concrete is poured on site to form the cast-in-place base plate 1. Vertical dowel bars or vertical steel bar joints for the precast columns 23 of the negative second floor and the cast-in-place side walls 2 are reserved in the base plate;

[0063] (2) Construction of the side wall of the negative second floor: Cast the second side wall of the station ground floor (cast-in-place side wall 2) on the cast-in-place bottom plate 1 to ensure that it is fixed to the bottom plate; Carry out the cast-in-place concrete construction of the side wall of the station ground floor (cast-in-place side wall 2) on the cast-in-place bottom plate 1. The construction joints of the side walls should be roughened, and the vertical reinforcement overlap of the side walls should be strictly in accordance with the design requirements to ensure that the cast-in-place side wall 2 is firmly connected to the cast-in-place bottom plate 1.

[0064] (3) Construction of precast columns on the second negative floor: hoist precast column 23 and connect the pre-buried steel sleeve 14 at the bottom of precast column 23 to the vertical dowels reserved in the bottom plate by grouting; after the concrete strength of the cast-in-place bottom plate 1 reaches the design strength, after precise positioning, hoist and install the bottom column (precast column 23). The bottom column is connected to the vertical dowels reserved in the cast-in-place bottom plate 1 by the pre-buried steel sleeve 14 at the bottom of the column, and the steel sleeve is filled tightly with grouting. Before the beam-column node at the upper end of the precast column (precast column 23) is formed, lateral support can be used to ensure the stability of the precast column.

[0065] (4) Assembly of the negative second-floor composite structure: After the cast-in-place side wall 2 concrete reaches the standard, the precast beams and slabs are transported to the construction site and installed to the designed position using hoisting equipment. The precast top longitudinal beam 24 is installed so that its two ends are supported on the precast columns 23, and then the precast composite slab part 25 is installed to support the upper part of the precast top longitudinal beam 24, and concrete is poured to form an integral composite floor slab including the cast-in-place layer (cast-in-place composite slab part 26);

[0066] (5) Construction of the side wall of the first underground floor: After the strength of the cast-in-situ composite slab of the second underground floor reaches 70% of the standard strength (or design strength), the cast-in-situ side wall of the first underground floor is constructed;

[0067] (6) Construction of precast columns on the first negative floor: After the strength of the cast-in-situ composite slab part 26 of the composite floor reaches 100%, hoist the precast column 18 and connect it to the composite floor slab on the second negative floor (precast composite slab part 25 and / or cast-in-situ composite slab part 26) through grouting of the pre-embedded steel sleeve 14 at the bottom of the precast column 18, reserving vertical dowel bars;

[0068] After the second-basement composite slab is completed and the cast-in-place layer (cast-in-place composite slab section 2 6) reaches 100% of its design strength, the first-basement precast columns (precast columns 1 8) are hoisted. These columns are connected to the reserved vertical dowels via pre-buried steel sleeves 14 at their bases. The steel sleeves must be densely grouted. Before the beam-column joints are formed at their upper ends, lateral supports can be used to ensure column stability.

[0069] (7) Assembly of the top plate composite structure: Install the prefabricated top longitudinal beam 9 to support it on the prefabricated column 8, lay the prefabricated composite plate part 10, and then pour waterproof concrete to form the top plate cast-in-place composite layer.

[0070] Preferably, the method further includes (8) checking the sealing performance and structural stability of the prefabricated structure after installation to ensure the construction quality.

[0071] After the concrete strength of the cast-in-place side walls (cast-in-place side walls - 7) on the first basement floor reaches the required specifications, the precast beams and slabs on the top floor are transported to the construction site and installed to the designed position using hoisting equipment. First, the composite beams (precast top longitudinal beams - 9) are installed, with both ends of the composite beams (precast top longitudinal beams - 9) supported on precast columns - 8. Next, the precast portion of the composite slab (precast composite slab portion - 10) is installed, with both ends supported on the top of the composite beams (precast columns - 8). Waterproof concrete (cast-in-place composite slab portion - 11) is poured on top of the precast composite beams (precast top longitudinal beams - 9) and the precast portion of the composite slab (precast composite slab portion - 10), forming a single unit with the cast-in-place layer.

[0072] A construction method for an assembled integral subway station structural system ensures the stability of the station foundation and the integrity of the structure through the construction of a cast-in-place bottom slab 1 and the construction of the side walls of the second negative floor. The construction of precast columns on the second negative floor improves construction efficiency and structural reliability by hoisting precast columns and connecting them with grouting. The assembly of the composite structure on the second negative floor achieves an organic combination of prefabrication and cast-in-place, optimizing construction speed and quality. The construction of the side walls and precast columns on the first negative floor further enhances the stability and bearing capacity of the structure. The assembly of the composite structure on the top plate ensures the integrity and waterproof performance of the station top structure through the installation of precast top longitudinal beams and composite plate sections, as well as the formation of a cast-in-place composite layer. The entire construction method achieves fast, efficient, and safe construction of subway stations while ensuring the stability and durability of the structure.

[0073] The structural system of this subway station adopts an assembled integral technology system that combines cast-in-situ and prefabrication. The bottom plate and side walls of the subway station are constructed with on-site cast-in-situ waterproof concrete to ensure the integrity and waterproof performance of the structure. The station structure columns of the present invention are fully prefabricated columns, industrially produced in the factory and installed on-site. The station structure beams adopt prefabricated composite beams. The prefabricated beams are made in the factory. After being hoisted on-site, the upper concrete is poured to connect them into a whole. The middle floor and top plate of the station adopt prefabricated composite slabs. The prefabricated floor slabs are made in the factory. After being hoisted on-site, the upper waterproof concrete is poured to form an integral structure. The overall structure of the subway station is formed by combining prefabricated components and cast-in-situ.

[0074] This invention combines prefabrication and cast-in-place technologies to create a complete subway station structural system. The use of prefabricated components, such as prefabricated columns and prefabricated composite slabs, significantly reduces on-site wet work, shortens construction time, and improves efficiency. The integration of cast-in-place and prefabricated components ensures structural integrity and stability. The connection between the cast-in-place section and the prefabricated components utilizes steel sleeve grouting to ensure the strength and durability of the connection points.

[0075] In a preferred embodiment, in step (4), shear key grooves are provided at the supporting nodes of the precast top longitudinal beam 2 4 and the precast column 2 3 to form a convex / groove structure, that is, the shear key groove of the precast top longitudinal beam 2 4 is formed by a plurality of shear keys arranged in parallel, the shear keys and the shear key grooves at the top of the precast column 2 3 form a convex / groove structure, and a rigid connection is formed after the concrete of the composite floor is poured. In step (7), shear key grooves are provided at the supporting nodes of the precast top longitudinal beam 1 9 and the precast column 1 8 to form a convex / groove structure, that is, the shear key groove of the precast top longitudinal beam 1 9 is formed by a plurality of shear keys arranged in parallel, the shear keys and the shear key grooves at the top of the precast column 1 8 form a convex / groove structure, and a rigid connection is formed after the concrete of the composite layer is poured. That is, after the concrete of the composite floor is poured, a stable rigid connection can be formed between the two. In step (7), shear key grooves are also provided for the supporting nodes of the prefabricated top longitudinal beam 9 and the prefabricated column 8, and a mutually engaging structure of protrusions and grooves is constructed. Specifically, the shear key grooves of the prefabricated top longitudinal beam 9 are formed by a plurality of shear keys arranged in parallel. These shear keys match the shear key grooves at the top of the prefabricated column 8 to form a tight protrusion / groove structure. When the composite layer concrete is poured and solidified, this structure will ensure a firm rigid connection between the two. This embodiment not only significantly improves the overall stability and bearing capacity of the structure, but also effectively enhances the connection strength between the prefabricated components, making the entire building structure safer and more reliable. At the same time, this method of forming a rigid connection is also relatively simple and efficient, which is conducive to shortening the construction period and reducing construction costs.

[0076] In a preferred embodiment, after the cast-in-situ superimposed layer of the top slab formed in step (7) is cured and meets the standards, the waterproof membrane is fully applied on its outer surface, and is bent downward by ≥1000mm at the junction of the top slab and the cast-in-situ side wall of the first floor below ground. In step (7), after the cast-in-situ superimposed layer of the top slab is cured and meets the standards, the waterproof membrane is fully applied on its outer surface to ensure the waterproof performance of the structure. In particular, at the junction of the top slab and the cast-in-situ side wall of the first floor below ground, the waterproof membrane is bent downward by at least 1000mm to form an effective waterproof barrier to prevent moisture penetration.

[0077] The fully applied waterproofing membrane significantly improves the structure's overall waterproofing performance, reducing the risk of structural damage due to water penetration. The downward bend at the junction of the membrane further enhances the reliability of the waterproof layer. This waterproofing solution is simple to implement and highly effective, providing strong guarantees for the long-term stability and safety of the building structure.

[0078] The cast-in-place base plate 1, cast-in-place side wall 2 and cast-in-place side wall 1 are all made of waterproof concrete with a water resistance grade ≥ P10.

[0079] In a preferred embodiment, the bottom embedded steel sleeve 14 is pre-embedded during the production of precast column 18 and precast column 23, and a top overhanging corbel 16 is provided. During the production process of precast column 18 and precast column 23, the bottom embedded steel sleeve 14 is pre-embedded and a top overhanging corbel 16 is provided. The pre-embedded steel sleeve 14 can ensure that the connection between the column and the foundation or other components is more firm and reliable, thereby improving the stability and safety of the overall structure. Through precise pre-embedded positioning, the steel sleeve can be tightly combined with the subsequently poured concrete to form an integrated force system. The top overhanging corbel 16 increases the bearing capacity and shear resistance of the column, allowing the column to better withstand the load from the upper structure. At the same time, the provision of the corbel also facilitates the connection with other components, improving construction efficiency and project quality.

[0080] In a preferred embodiment, the bottom reinforcement 12 of precast composite panel section 10 extends from the concrete blocks of precast composite panel section 10 to form a bottom reinforcement extension, and the bottom reinforcement extensions of adjacent precast composite panel sections 10 are welded together. The bottom reinforcement 12 of precast composite panel section 2 5 extends from the concrete blocks of precast composite panel section 2 5 to form a bottom reinforcement extension, and the bottom reinforcement extensions of adjacent precast composite panel sections 2 5 are welded together. By extending the bottom reinforcement 12 of precast composite panel section 10 and precast composite panel section 2 5 from their respective concrete blocks to form bottom reinforcement extensions, and welding the adjacent bottom reinforcement extensions, a secure connection is achieved between the composite panels. This connection method not only enhances the overall stability of the structure but also improves construction efficiency and reduces on-site welding workload. Furthermore, the provision of the bottom reinforcement extensions allows the composite panels to more evenly transfer loads when subjected to stress, thereby improving the overall load-bearing capacity of the structure.

[0081] In a preferred embodiment, reference Figure 4 The steel bar ends of the cast-in-situ composite slab portion 2 6 of the composite slab are bent to form an L-shaped end portion 1, and the vertical steel bars of the precast column 2 3 are bent at the top to form an L-shaped end portion 2; the adjacent L-shaped end portions 1 and 2 are welded;

[0082] The steel bar ends of the prefabricated composite plate part 10 of the composite layer are bent to form L-shaped end parts 3, and the vertical steel bars of the prefabricated column 2 3 are bent at the top to form L-shaped end parts 4; the adjacent L-shaped end parts 3 and L-shaped end parts 4 are welded.

[0083] Through the above structure, such as Figure 5As shown, the ends of the steel bars of the cast-in-place composite slab section 2 6 are welded to the vertical bars of the precast column 2 3 via L-shaped ends 1 and 2, forming a stable mechanical connection point and enhancing the connection strength between the slab and the column. Similarly, the ends of the steel bars of the precast composite slab section 10 of the composite layer are welded to the vertical bars of the precast column 2 3 via L-shaped ends 3 and 4, further ensuring the overall stability and load-bearing capacity of the structure. This connection method not only improves construction efficiency and reduces on-site wet work, but also enhances the seismic resistance and durability of the structure, providing a strong guarantee for the safe use of the building.

[0084] A construction method for an assembled, monolithic subway station structure based on intelligent construction. Precast columns 23, 18, 24, 19, 55, and 10 are embedded with RFID chips or labeled with barcodes or QR codes during factory production. Using next-generation identification technologies such as barcodes, QR codes, and radio frequency identification, the precast components are categorized and coded, providing a shareable digital identity for precast concrete components. This enables digital management of the entire component production, processing, warehousing, storage, allocation, delivery, transportation, and on-site inspection.

[0085] During the construction of the station foundation pit, prefabricated columns (prefabricated column 18, prefabricated column 23), prefabricated composite beams (prefabricated top longitudinal beam 19, prefabricated top longitudinal beam 24), and prefabricated composite slabs (prefabricated composite slab part 10, prefabricated composite slab part 25) were produced simultaneously in the prefabrication factory. In the industrial production processes such as steel bar production and installation, mold installation and disassembly, and concrete pouring of prefabricated components, the digitalization of the production process of building components and the use of construction robots were promoted to realize digital production and intelligent management. Identity coding was performed on various types of prefabrication, so that prefabricated components had shareable digital ID cards, so as to realize digital management of the entire process of component production and processing, warehousing, storage, transportation, and on-site acceptance.

[0086] The RFID chip, barcode or QR code tag associates the components (precast column 23, precast top longitudinal beam 24, precast composite slab part 25, precast column 18, precast top longitudinal beam 19 and precast composite slab part 10) with three-dimensional dimensions, reinforcement parameters and quality inspection data.

[0087] During the construction preparation phase, key components such as precast column 23, precast column 18, precast top longitudinal beam 24, precast top longitudinal beam 19, precast composite slab section 25, and precast composite slab section 10 were embedded with RFID chips or labeled with barcodes or QR codes during factory production. These identification technologies uniquely identify each component and link it to key information such as its 3D dimensions, reinforcement parameters, and quality inspection data.

[0088] At the construction site, intelligent devices such as RFID readers, barcode scanners, or QR code scanners can quickly read the RFID chips, barcodes, or QR code information on components, enabling automatic collection and identification of component information. This greatly improves construction efficiency and reduces the possibility of manual input errors.

[0089] Furthermore, the quality inspection data associated with the RFID chip, barcode or QR code tag includes the real-time curing temperature T (unit: ° C), curing humidity H (unit: %) and demolding time during the component production stage.

[0090] Before on-site hoisting, the actual size L of the component is obtained through a 3D scanner act (Unit: mm) and the design dimension L in the BIM model des (Unit: mm) Compare and generate dimensional deviation δ, δ = |L act -L des ∣.

[0091] Based on the production data and dimensional deviations, the production process parameters of subsequent components in the same batch are dynamically corrected according to the following steps.

[0092] (a) Independent assessment of sub-items:

[0093] If δ>δ lim (δ lim =3mm), the mold positioning correction is triggered;

[0094] If |T-T0|>ΔT lim (T0=25℃,ΔT lim =2°C), the curing temperature correction is triggered;

[0095] If |H-H0|>ΔH lim (H0=95%,ΔH lim =3%), then the maintenance humidity correction is triggered.

[0096] (b) Calculation of comprehensive process correction:

[0097]

[0098] Where, ΔP: process parameter correction (dimensionless); δ: dimensional deviation, δ=|L act -L des |; T: average curing temperature during the component production stage; T0: target curing temperature, which is 25±2℃; H: average curing humidity during the component production stage; H0: target curing humidity, which is 95%±3%; δ lim Dimensional tolerance threshold; ΔT lim Curing temperature allowable deviation threshold; ΔH limAllowable deviation threshold of maintenance humidity; w1, w2, w3: weight coefficients, determined through training of historical data sets, w1+w2+w3=1, for example, w1=0.5, w2=0.3, w3=0.2. Normalized deviation.

[0099] (c) Dynamic parameter adjustment:

[0100] When any judgment condition is triggered, the subsequent batch parameters are modified according to the following rules:

[0101] ΔL=L des -0.8δ (Mold positioning correction)

[0102] T new =T0+0.5(T-T0) (curing temperature correction)

[0103] H new =H0+0.3(H-H0) (curing humidity correction)

[0104] Among them, ΔL is the mold positioning adjustment value, T new is the corrected curing temperature, H new is the corrected maintenance humidity.

[0105] In one embodiment, a construction method of an assembled integrated subway station structure system based on intelligent construction further includes:

[0106] (a) Real-time stress monitoring and early warning method based on the Internet of Things;

[0107] (b) Concrete strength prediction and quality control methods;

[0108] (c) Dynamic correction method for dimensional deviation between 3D scanning and BIM model.

[0109] The real-time stress monitoring and early warning method based on the Internet of Things is specifically as follows: during the hoisting process of prefabricated components, stress data σ is collected in real time through stress sensors embedded in the components (the stress sensor collection end is embedded in the corresponding prefabricated components). t ; and transmitted to the central control system.

[0110] The central control system judges the safety of components through the following formula, σ t ≤σ max , where σ t is the stress value collected in real time, σ max is the preset maximum stress threshold, for example, σ max The value is 80% of the design strength. t >σ max When the alarm is triggered, the system will automatically trigger the sound and light alarm and suspend the lifting operation.

[0111] The concrete strength prediction and quality control method is specifically as follows: during the concrete curing stage, the concrete core temperature T1 and curing time τ1 are collected in real time by a temperature sensor, and the control system is controlled by σ pred =k1·ln(τ1)+k2·T1+b, predicting concrete strength σ pred ; Among them, σ pred is the predicted strength, k1 and k2 are material correlation coefficients, determined by fitting historical data such as curing time, temperature, and measured strength, for example, k1 = 2.5, k2 = 0.3, and b is a constant term, for example, b = 10. Concrete strength growth follows a logarithmic law, with rapid strength growth in the early stage and slowing down in the later stage; rising temperature accelerates the hydration reaction, and the strength increases approximately linearly, thus obtaining the concrete strength prediction formula. When σ pred ≥σ req When it is judged to meet the standard, σ req is the design strength requirement value. If σ pred <σ req , the system automatically extends the steam curing time Δτ: (α=1.2~1.5) and increase the curing humidity to H n =H0+5% (H0 is the target humidity).

[0112] The dynamic correction method for the size deviation between the three-dimensional scanning and the BIM model is as follows: before the component leaves the factory, the actual size L is obtained by a three-dimensional scanner. act , and the design size L in the BIM model des Compare; calculate the size deviation δ by the following formula:

[0113] δ=|L act -L des ∣

[0114] When δ≤δ lim It is considered qualified when δ>δ lim , triggers mold positioning correction.

[0115] Intelligent construction: Adopting the new generation of BIM technology to simulate the construction organization scheme combining prefabricated components with cast-in-place and conduct construction organization optimization design analysis, including planning of construction plane, simulation of construction process, simulation of construction progress and comparison of special construction schemes, so as to achieve a reasonable layout of the construction site and optimization of the construction process, and ensure the smooth implementation of the subsequent on-site installation of prefabricated components.

[0116] Utilizing an intelligent construction management system, collected component information is integrated and analyzed. The system automatically generates construction guidance documents, including component installation sequences and lifting plans, providing precise guidance to construction personnel. Furthermore, the system monitors construction progress in real time to ensure smooth and consistent progress according to plan.

[0117] During the construction process, the intelligent construction management system also monitors and evaluates the installation quality of components in real time. By comparing results with pre-set quality inspection standards, the system can promptly identify and correct quality issues during construction, ensuring the safety and stability of the subway station structure.

[0118] In summary, this construction method, by introducing identification technologies such as RFID chips, barcodes, or QR codes, combined with an intelligent construction management system, achieves intelligent, automated, and refined construction of subway station structures. This not only improves construction efficiency and quality, but also reduces construction costs and safety risks, providing a new solution for the intelligent construction of subway stations.

[0119] Preferably, after installation, precast column 2 3 and precast column 1 8 are temporarily fixed using lateral supports until the beam-column joint is cast in place.

[0120] Preferably, the production of prefabricated components is carried out simultaneously with the foundation pit construction, and the prefabricated column 1 8 and the prefabricated column 2 3 are manufactured in the factory simultaneously during the foundation pit excavation stage.

[0121] An assembled integral subway station structural system, comprising:

[0122] Cast-in-place external waterproof structure: cast-in-place bottom plate 1, cast-in-place side wall 2, cast-in-place side wall 1 7 form a continuous closed waterproof layer;

[0123] Prefabricated core components:

[0124] Precast column 2 3 and precast column 1 8: embedded steel bar sleeve 14 is provided at the bottom and external cantilevered corbel 16 is provided at the top;

[0125] The structural drawings of precast columns 23 and 18. During the industrial production of precast columns 23 and 18, a cantilevered corbel 16 is provided at the top of the precast columns to support the precast composite beams (precast top longitudinal beam 19 and precast top longitudinal beam 24). Embedded steel sleeves 14 are provided at the bottom of the precast columns to connect the precast columns to the cast-in-place base plate 1. A steel bar joint is reserved at the top of the precast column longitudinal reinforcement (precast column main reinforcement 15) for connection to the upper components of the precast column (see Figure 6 ).

[0126] Precast top longitudinal beam 2 4 and precast top longitudinal beam 1 9: with shear keys at the ends, supported on the cantilevered corbels 16;

[0127] Prefabricated composite panel part 2 5 and prefabricated composite panel part 10: built-in prefabricated composite panel part bottom reinforcement 12;

[0128] Cast-in-place composite integral layer:

[0129] The prefabricated top longitudinal beam 2 4 and the prefabricated composite slab portion 2 5 are combined with the cast-in-situ composite slab portion 2 6 to form a negative second floor cast-in-situ composite integral layer;

[0130] The prefabricated top longitudinal beam 9 and the prefabricated composite slab portion 10 are connected to the cast-in-situ composite slab portion 11 to form a basement cast-in-situ composite integral layer;

[0131] The use of prefabricated components can reduce on-site construction time and speed up the overall construction process. Prefabricated components are produced in factories with stricter quality control, which helps improve the stability and durability of the overall structure. The use of cast-in-place peripheral waterproofing structures and cast-in-place composite integral layers reduces wet work on site, which helps improve the construction environment and reduce the impact on the surrounding environment. The continuously closed cast-in-place waterproof layer can effectively prevent groundwater seepage and improve the waterproof performance of the station. The prefabricated core components are combined with the cast-in-place composite slab to form an integral structure, which enhances the integrity and seismic performance of the structure. The standardized and modular design of prefabricated components makes the structural system more flexible and adaptable, making it easier to adjust and optimize according to actual needs. The large-scale production of prefabricated components can reduce material and labor costs, while reducing on-site construction time also helps save overall construction costs.

[0132] In a preferred embodiment, precast column 2 3 and precast column 1 8 are connected to the lower structure by grouting of pre-buried steel sleeves 14 (precast column 2 3 is connected to the cast-in-place bottom plate 1, and precast column 1 8 is connected to the integral composite floor slab);

[0133] The upper steel bars 13 of the cast-in-place portion of the precast composite slab section 10 are bent and welded to the vertical steel bars of the cast-in-place side wall 1 at the edge supports. The upper steel bars 13 of the cast-in-place portion of the precast composite slab section 25 are bent and welded to the vertical steel bars of the cast-in-place side wall 2 at the edge supports. The upper steel bars 13 of the cast-in-place portion of the composite slab are bent downward at the edge supports and welded to the outer vertical steel bars of the cast-in-place side wall 2 / cast-in-place side wall 1, forming a continuous waterproof joint.

[0134] Precast column 2 3 and precast column 1 8 are connected to the lower structure by grouting with embedded steel sleeves 14, thus achieving a stable connection between the structures. The upper steel bars of the cast-in-place part of the precast composite slab part 10 are bent and welded to the vertical steel bars of the cast-in-place side wall 1 7 at the edge support position, thereby enhancing the connection strength of this area. Similarly, the upper steel bars 13 of the cast-in-place part of the precast composite slab part 2 5 are also bent and welded to the vertical steel bars of the cast-in-place side wall 2 2 at the edge support position, further ensuring the overall stability of the structure. Through the precise grouting connection technology of embedded steel sleeves 14, the connection efficiency and firmness between the precast columns and the lower structure are improved; the bending and welding of the steel bars of the cast-in-place part of the composite slab and the cast-in-place side wall effectively enhances the overall rigidity and seismic performance of the structure, making the entire building structure safer and more reliable.

[0135] In a preferred embodiment, see Figure 4 The bottom reinforcement 12 of the precast part of the precast composite slab part 25 and the precast composite slab part 10 is welded at the middle support (precast column 23 or precast column 18), and the upper reinforcement 13 of the cast-in-place part of the composite slab is set throughout the length. That is, the bottom reinforcement 12 of the precast part of the composite slab of the adjacent precast composite slab part 25 is welded at the top of the precast column 23; the bottom reinforcement 12 of the precast part of the composite slab of the adjacent precast composite slab part 10 is welded at the top of the precast column 18. The upper reinforcement of the cast-in-place part of the composite slab is set throughout the length, which enhances the cooperative working ability between the cast-in-place layer and the precast bottom plate, so that the composite slab can form a more uniform and reasonable stress distribution when subjected to stress. The upper reinforcement set throughout the length improves the bending bearing capacity and crack resistance of the composite slab, which helps to extend the service life of the composite slab.

[0136] The present invention achieves complementary advantages between prefabricated structures and cast-in-place structures through an innovative structural system, combined with new-generation information technology and construction technology. The construction efficiency is high because the floor slabs and beams are prefabricated in the factory and hoisted on-site, which shortens the construction period. The quality is reliable, and the quality of prefabricated components is controllable, reducing the construction and maintenance problems of on-site cast-in-place concrete. The connection is firm, and the prefabricated components and cast-in-place structures are connected by steel anchoring and post-poured concrete to ensure structural stability and bearing capacity. The waterproof performance is good, and the outermost layer of the entire station structure adopts a closed cast-in-place waterproof concrete structure, supplemented by outsourcing waterproof membranes to ensure the overall waterproof performance of the underground structure. In addition, this technology has the advantages of environmental protection and energy saving, reduces construction waste and noise pollution, and meets the requirements of green construction. Therefore, it provides a brand-new technical solution for urban rail transit construction.

[0137] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as covering the preferred embodiments and all changes and modifications that fall within the scope of the invention. The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A construction method for assembling an integral subway station structure system, characterized in that: The following steps are involved: (1) Cast-in-place base plate construction: Waterproof concrete is poured on site to form a cast-in-place base plate, and vertical dowel bars for the second precast column on the negative second floor are reserved in the base plate; (2) Construction of the side wall of the negative second floor: cast the second side wall of the station ground floor on the cast-in-place base plate and fix it to the base plate; (3) Construction of precast columns on the second negative floor: hoist the second precast column and connect the vertical dowels reserved in the bottom plate through grouting of the pre-buried steel bar sleeves at the bottom of the second precast column; (4) Assembly of the negative second-floor composite structure: After the second cast-in-place side wall concrete reaches the standard, install the second precast top longitudinal beam so that its two ends are supported on the second precast column, then install the second precast composite slab part supported on the upper part of the second precast top longitudinal beam, and pour concrete to form an integral composite floor slab including the cast-in-place layer; (5) Construction of the side wall of the first underground floor: After the strength of the cast-in-situ composite slab of the second underground floor reaches 70%, the first cast-in-situ side wall of the first underground floor is constructed; (6) Construction of precast columns on the first negative floor: After the cast-in-situ composite slab reaches the strength standard, the precast columns are hoisted and connected to the reserved vertical dowels of the composite slab on the second negative floor through grouting of the precast steel sleeves embedded at the bottom of the precast columns; (7) Assembly of the top plate composite structure: Install the prefabricated top longitudinal beams supported on the prefabricated columns, lay the prefabricated composite plate part, and then pour waterproof concrete to form the top plate cast-in-place composite layer.

2. The construction method of the assembled integral subway station structure system according to claim 1, characterized in that: In step (4), shear keyways are provided at the supporting nodes of the precast top longitudinal beam 2 and the precast column 2, and a rigid connection is formed after the composite floor concrete is poured; in step (7), shear keyways are provided at the supporting nodes of the precast top longitudinal beam 1 and the precast column 1, and a rigid connection is formed after the composite layer concrete is poured.

3. The construction method of the assembled integral subway station structure system according to claim 1 or 2, characterized in that: After the cast-in-situ superimposed layer of the top plate formed in step (7) has been cured to the standard, a waterproof membrane is applied to its outer surface and bent downward at the junction of the top plate and the cast-in-situ side wall of the first floor below.

4. The construction method of the assembled integral subway station structure system according to claim 1, characterized in that: During the production of precast column 1 and precast column 2, precast steel sleeves are embedded in the bottom and a cantilevered corbel is set on the top.

5. The construction method of the assembled integral subway station structure system according to claim 1, characterized in that: The bottom reinforcement of the precast part of the precast composite slab part one extends out of the concrete block of the precast composite slab part one to form a bottom reinforcement extension section, and the bottom reinforcement extension sections of adjacent precast composite slab parts one are welded together; The bottom reinforcement of the precast composite plate part of the second precast composite plate extends out of the concrete block of the second precast composite plate part to form a bottom reinforcement extension section, and the bottom reinforcement extension sections of adjacent second precast composite plate parts are welded together.

6. The construction method of the assembled integral subway station structure system according to claim 1 or 5, characterized in that: The ends of the steel bars of the second cast-in-place composite slab are bent to form an L-shaped end portion, and the vertical steel bars of the second precast column are bent at the top to form an L-shaped end portion; the adjacent L-shaped end portions 1 and 2 are welded; The end of the steel bar of the precast composite plate part 1 of the composite layer is bent to form an L-shaped end 3, and the vertical steel bar of the precast column 2 is bent at the top to form an L-shaped end 4; the adjacent L-shaped end 3 and L-shaped end 4 are welded.

7. A construction method for an assembled integrated subway station structure system based on intelligent construction, characterized in that: A construction method for an assembled integral subway station structural system according to claim 1; Prefabricated column 2, prefabricated column 1, prefabricated top longitudinal beam 2, prefabricated top longitudinal beam 1, prefabricated composite panel part 2, and prefabricated composite panel part 1 are embedded with RFID chips or affixed with barcodes or QR code labels during factory production; RFID chips, barcodes or QR code tags are associated with component 3D dimensions, reinforcement parameters and quality inspection data.

8. An assembled integral subway station structure system, characterized in that: include: Cast-in-place external waterproof structure: cast-in-place bottom plate, cast-in-place side wall 2, cast-in-place side wall 1 form a continuous closed waterproof layer; Prefabricated core components: Precast column 2 and precast column 1: embedded steel sleeves are provided at the bottom and cantilevered corbels are provided at the top; Precast top longitudinal beam 2 and precast top longitudinal beam 1: supported on the external cantilevered corbels; Precast composite slab part 2 and precast composite slab part 1: built-in bottom reinforcement of the precast composite slab part; Cast-in-place composite integral layer: The prefabricated top longitudinal beam 2 and the prefabricated composite slab part 2 are combined with the cast-in-situ composite slab part 2 to form a negative second floor cast-in-situ composite integral layer; The prefabricated top longitudinal beam 1 and the prefabricated composite slab part 1 are connected with the cast-in-situ composite slab part 1 to form a basement cast-in-situ composite integral layer.

9. The assembled integral subway station structure system according to claim 8, characterized in that: include: Precast column 2 and precast column 1 are connected to the lower structure through grouting of pre-buried steel sleeves; The upper reinforcement of the cast-in-place portion of the prefabricated composite slab part 1 is bent and welded to the vertical reinforcement of the cast-in-place side wall 1 at the edge support; The upper reinforcement of the cast-in-place portion of the prefabricated composite slab part 2 is bent and welded to the vertical reinforcement of the cast-in-place side wall 2 at the edge support.

10. The assembled integral subway station structure system according to claim 8 or 9, characterized in that: The bottom reinforcement of the prefabricated part of the prefabricated composite slab part 2 and the prefabricated composite slab part 1 is welded at the middle support, and the upper reinforcement of the cast-in-place part of the composite slab is set throughout the length.

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