Construction quality inspection system of prefabricated airport pavement based on BIM and TSL

Abstract

The present invention discloses a construction quality inspection system for prefabricated airport pavement based on BIM and TSL, including a service system, the service system is adapted to a logical framework application system, and construction management and quality control are performed through construction management methods and quality inspection methods. This system aggregates and integrates information from construction units, design units, supervision units, prefabricated component production units, warehousing companies, transportation companies, and construction units, so that information on the construction of prefabricated airport pavements can be shared and transmitted among all parties, minimizing assembly errors or project delays caused by unsmooth construction information, achieving current management innovation, and improving efficiency. This collaborative digital management is achieved in combination with the actual construction process of prefabricated airport pavement construction. The system and method in the present invention improve the accuracy and efficiency of the construction quality inspection work of prefabricated airport pavements, and achieve an overall improvement in the construction efficiency and construction quality of prefabricated airport pavements.

Description

Technical Field

[0001] The present invention relates to the field of construction of prefabricated buildings of airport pavements, and in particular to a construction quality detection system for prefabricated airport pavements based on BIM and TSL. Background Art

[0002] The airport runway refers to the extra-long strip area in the airport used to supply aircraft takeoff or landing. The pavement that contacts the landing gear tires of aircraft is the core of the airport infrastructure. The airport pavement is generally made of asphalt concrete or cement concrete. At present, cast-in-place cement concrete is mainly used for airport roads in my country. The construction of cast-in-place airport pavement surface mainly includes a series of processes such as formwork production and support, mixture mixing, transportation of ingredients, paving, mixture vibration, leveling and slurry, surface finishing, surface roughening, curing, grooving, cutting, expanding, cleaning, and filling. Its advantages are: high rigidity, high strength, good integrity, and strong erosion resistance. Its disadvantages are: slow construction progress and long maintenance age, which cannot meet the needs of non-stop construction and emergency repair projects; at the same time, there are many construction constraints, and climatic conditions such as strong winds, high temperatures, rain, snow, and freezing all affect the quality of the airport pavement surface board. It is imperative to solve the key technical problems faced by airport runways in emergency support under complex and harsh environments, such as short effective construction period, difficult quality assurance, and lack of human resources.

[0003] Prefabricated buildings have the advantages of high production efficiency, shortened construction period, labor saving, and compliance with the "four savings and one environmental protection" policy. They are strongly advocated by the country and are also favored by the construction industry. Prefabricated airport pavements may be an effective means to completely solve the problems related to cast-in-place airport pavements. They use factory-prefabricated prefabricated concrete pavement panels, transport them to the construction site, and assemble and install them on site through reliable connections. It has a stable production environment, reliable quality, and good durability. The entire construction process is highly mechanized and intelligent, and each process is organized into parallel flow operations, which is highly efficient and has a short construction period, making it possible to quickly build airport pavements.

[0004] During World War II, the United States began to study perforated steel plate prefabricated pavement, and soon applied it to actual combat. After World War II, with the rapid development of the aircraft manufacturing industry, jet fighters were put into use, which put forward higher requirements for pavement panels. A variety of prefabricated pavements such as aluminum alloy pavement panels, fiberglass pavement panels, and prefabricated concrete panels have appeared one after another. In 1984, Brabsto conducted an experimental study on prefabricated cement concrete pavement. It was not until the 1990s that prefabricated cement concrete pavement was taken seriously. In 1997, JWBull and CHWooford of the Department of Civil Engineering at Newcastle University conducted a finite element simulation analysis of prefabricated concrete pavement at the airport. The results show that the service life of prefabricated concrete pavement is long and can be used as a permanent pavement at the airport. In 2001, Washington Dulles International Airport successfully replaced three pavement panels using prefabricated repair technology, proving that the technology can achieve rapid repair of the runway without stopping flights. my country has not yet started on prefabricated airport pavements and is still in the research stage. In 2020, Sun Jianjun and others conducted research on the prevention and control of damage to prefabricated assembled concrete pavement slabs. The results showed that whether the prefabricated slabs are well fitted with the base during paving has a great impact on the service life of the pavement.

[0005] The above studies and patents rarely mention the quality inspection of prefabricated airport pavement construction, which is an important guarantee for building high-quality prefabricated buildings. At present, in other industries, such as building construction, highways, etc., the quality assessment methods used to detect assembly components and installation effects during the construction of prefabricated buildings mostly rely on rough manual measurements, which are often time-consuming and inaccurate. The construction of prefabricated airport pavements requires high precision (millimeter level), and it is necessary to change the traditional quality inspection methods, use new technologies and means, and innovate management models to ensure that the quality of prefabricated airport pavement construction will not be affected. Summary of the invention

[0006] The purpose of the present invention is to provide a construction quality inspection system for assembled airport pavement based on BIM and TSL.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0008] The construction quality inspection system of prefabricated airport pavement based on BIM and TSL includes a service system. The service system is adapted to the logical framework application system, and construction management and quality inspection methods are used to manage and control construction;

[0009] The service system includes a server assembly, multiple clients and several mobile terminal devices, and the server assembly includes a management server and at least one BIM model server;

[0010] The client accepts the user's request, makes a request to the server assembly through the wired network, and operates the database; the server assembly accepts the client's request, submits the data to the client, and the client calculates the data and presents the result to the user; the mobile terminal device is connected to the server assembly through the 5G / 4G network; the mobile terminal device accepts the user's request, and makes a request to the server assembly through the network to operate the database;

[0011] The logical framework application system includes a user layer, an application layer, a data layer and an infrastructure layer. The infrastructure layer includes a BIM basic system, a tag reader module, a 3D laser scanner module and a vehicle-mounted GPS module. The vehicle-mounted GPS module is installed on the transport vehicle to feed back the vehicle location information to the management server. The 3D laser scanner module is used to scan prefabricated components.

[0012] The data layer includes a data exchange module, a data storage module, and a data analysis module. The data exchange module collects, processes, and exchanges all types of data required by the system. The data storage module stores the above data and processes it through the data analysis module.

[0013] The application layer includes the airport pavement design module, prefabricated component production module, quality control module, prefabricated component storage and transportation module, and component installation and construction module applied to the management server; and the BIM collaborative work platform module and airport pavement results management module applied to the BIM model server; the management server transmits instructions to the BIM model server, and the BIM model server makes content requests to the management server; the user layer includes the construction unit, design unit, component production unit, storage and transportation unit, construction unit and supervision unit.

[0014] Preferably, a Client-Server network architecture is used between the management server, the BIM model server and the client, and a Client-Server network architecture is used between the management server, the BIM model server and the mobile terminal device. The client and the mobile terminal device are located at the front end of the Client-Server network architecture, and the server is located at the back end of the Client-Server network architecture.

[0015] The airport pavement design module is applied in the design stage, and works through the BIM collaborative work platform to realize the airport pavement construction drawing design and design changes;

[0016] The airport pavement information model formed by the airport pavement design module covers the information of prefabricated components of assembled airport pavement, including component classification, ID coding, input person and component definition information;

[0017] There is a mapping relationship between ID codes and components. One ID code corresponds to one component. The component information contained in a component is key information throughout the entire life cycle of the building.

[0018] The information in the component includes component name, component type, component geometric information, component non-geometric information, component coordinate system, component process, component material, component batch, and component assembly plan.

[0019] Preferably, the prefabricated component production module is for prefabricated component manufacturers; prefabricated components are the basic entities of prefabricated buildings, and the prefabricated production module manages the production of components;

[0020] The prefabrication production submodule takes over the airport pavement design module, and extracts all the attribute information of the component through the component ID code. It also formulates corresponding material procurement plans and production plans based on the demand for raw materials and the matching conditions of parts in component production, and sends them to the designated prefabricated component manufacturers through the system.

[0021] Preferably, the quality control module is used for the quality management of the airport pavement composed of factory prefabricated components and on-site construction and assembly; the module works in coordination with the prefabricated component production module and the component installation and construction module, and is connected with the airport pavement design module and the prefabricated component storage and transportation module to ensure the quality of component prefabrication and component assembly;

[0022] In the quality control of the quality control module, a quality control method is used for monitoring, and the quality control method includes the following:

[0023] Step A1: A construction quality inspection system for prefabricated airport pavement based on BIM and TSL is required;

[0024] Step A2: Conduct quality control inspections on prefabricated factory components and on-site component assembly, collect and store a large amount of quality-related data using 3D laser scanning technology, conduct statistical analysis and timely feedback on quality information based on quality standards, control component quality, and ensure that component products and assembly as a whole meet delivery standards;

[0025] Step A3: Strengthen the quality management of prefabricated component manufacturers to ensure that all accessories can be accurately installed on site without errors, omissions or collisions, and meet the quality inspection requirements of single prefabricated components;

[0026] Step A4: Quality management of the construction site. Before the construction of prefabricated buildings, a targeted analysis of the entire construction process is carried out. The quality problems and key points in the construction are discovered with the help of the BIM model. Through the simulation and identification of quality control points, the construction site can be reminded to focus on quality monitoring, reduce quality risks caused by technical problems during the assembly of components, and meet the overall quality inspection requirements of the airport pavement.

[0027] Preferably, the prefabricated component storage and transportation module is used to store and transport the prefabricated components and to track and manage the prefabricated components;

[0028] In this module, the prefabricated component labels are identified by radio frequency scanning equipment, and information can be screened and relevant information can be extracted according to the requirements of storage, transportation, and assembly construction;

[0029] The prefabricated component storage and transportation submodule monitors the transportation and storage of prefabricated components to ensure rapid query of transportation logistics information, classifies and registers the storage of components and enters them into the system, realizes the informatization of component transportation and storage, and is used for rapid query of construction site information and reasonable formulation and assembly of construction plans based on component guarantee conditions.

[0030] Preferably, the component installation and construction module is used for the construction unit, and the component installation and construction module manages the assembly construction of prefabricated components. The component installation and construction module works in coordination with the airport pavement design module and the quality control module, and is connected with the prefabricated component storage and transportation sub-module, so that the prefabricated component assembly construction is completed smoothly and the procedures, processes, facilities and equipment meet the relevant requirements of quality and safety.

[0031] Preferably, the construction management method includes:

[0032] Production stage: This stage is the beginning of construction management. First, the model sent by the designer is checked for version and information integrity. After passing the check, the model data is converted to convert the design stage model into a construction management model. After the data conversion is completed, the system will automatically extract the construction management model data information, analyze and generate the unique identification number ID and related attribute information of the assembly component. Using the assembly component ID information, the system will automatically generate component labels according to the component production schedule or the order entered in advance by the manufacturer;

[0033] Warehousing stage: In this stage, the staff needs to place labels on the assembled components and perform the first laser scanning quality inspection on the components. According to the actual component form and engineering needs, the staff will design a suitable scanning strategy and select the corresponding scanning equipment to obtain the required point cloud data. The system will automatically compare the point cloud data with the design stage model, record the overall size and torsion error information of the component, and give the location and value of the error.

[0034] Transportation stage: The transportation of components is carried out in batches, and the assembly progress is adjusted in real time based on the location of the construction site and the progress of assembly. The management platform will provide the location and status information of the components in the progress tracking module, providing a dynamic management basis for all parties to coordinate production and processing, transportation vehicles and actual assembly progress;

[0035] Installation phase: After the components arrive at the assembly site, workers confirm the entry of the components in the system by reading the labels on the assembled components; in the storage and placement management on site, the components will be regionally located and tracked based on the electronic anti-counterfeiting label technology, and the components will be planned on site according to the construction plan and quickly accessed through the electronic anti-counterfeiting label technology; during the installation process, workers will verify the installation location information on the management platform through the labels, providing assistance for the assembly process of many complex structural systems; after the components are successfully installed, the workers will confirm the final installation status of the components in the system through the component labels, and use laser scanning to regularly record the key components and structures after installation, and monitor their verticality and gap changes in the system, so that the assembly quality can be controlled throughout the construction phase.

[0036] Preferably, the quality detection method includes the following:

[0037] Step B1: adopt the definition method of quality requirements and quality assessment indicators and propose quantitative standards;

[0038] Step B2: Detect prefabricated factory components under quality control, collect and store quality-related data using 3D laser scanning technology, quickly compare and analyze the quality standards and the attributes collected during the detection, obtain the detection results, and achieve control of component quality;

[0039] Step B3: Inspect the on-site component assembly for quality control, use 3D laser scanning technology to collect and store a large amount of quality-related data, conduct rapid comparative analysis based on quality standards and the attributes collected during inspection, obtain inspection results, control the overall quality of the assembly, and determine whether the delivery standard is met.

[0040] Preferably, the quality requirements and quality assessment index definition methods include the following:

[0041] Step C1: Determine the quality risks in the construction of prefabricated buildings and the quality inspection standards for the cement concrete surface layer of the airport pavement according to relevant specifications and standards;

[0042] Step C2: According to the inspection method of prefabricated components, formulate the inspection standards of prefabricated components and the inspection standards of component assembly, determine the basic specification requirements of cement concrete, and conduct matching inspection according to project requirements;

[0043] Step C3, formulating the inspection standards for prefabricated components and the inspection standards for component assembly;

[0044] Step C4: Determine the appearance standard of the component and check whether the appearance of the prefabricated component meets the requirements.

[0045] Preferably, the quality inspection method also includes a prefabricated component quality inspection method and a component assembly quality inspection method;

[0046] The quality inspection methods for prefabricated components include the following:

[0047] Step D1: According to the inspection standards for prefabricated components, the inspection properties and corresponding inspection standards of various prefabricated components in the BIM model of the assembled airport pavement are quantitatively processed to establish a mapped inspection database; Step D2: 3D laser scanning technology is used to identify and inspect the appearance parameters of components during the component manufacturing process, and the inspection data is processed into a type with the same storage structure as the inspection database; Step D3: Finally, the two are indexed by barcode information and traversed by binary search to achieve rapid comparative analysis of inspection properties, and components that do not meet the standards are given in the BIM model by ID numbers;

[0048] The component assembly quality methods include the following:

[0049] Step E1, according to the inspection standard of component assembly, the inspection attributes of component assembly in the BIM model of the prefabricated airport pavement and the corresponding inspection standards are quantified to establish a mapped inspection database; Step E2, use 3D laser scanning technology to identify and detect the appearance parameters of component assembly, and process the inspection data into a type with the same storage structure as the inspection database; Step E3, finally, the digital airport pavement model formed by 3D laser scanning technology is quickly compared and analyzed with the BIM model in the design stage, and the attributes and positions that do not meet the standards are given in the BIM model.

[0050] The beneficial effects of the present invention are:

[0051] The BIM and TSL-based prefabricated airport pavement construction quality inspection system in the present invention is designed based on BIM and TSL technology. The system is also based on a collaborative digital management, which aggregates and integrates the information of the construction unit, design unit, supervision unit, prefabricated component production unit, warehousing enterprise, transportation enterprise and construction unit, so that the information of the prefabricated airport pavement construction can be shared and transmitted among all parties, and the assembly errors or project delays caused by the unsmooth construction information are minimized. First, the current management innovation is realized, and second, the efficiency is improved. This collaborative digital management is realized in combination with the actual construction process of the prefabricated airport pavement construction (airport pavement design, prefabricated component production, prefabricated component storage, prefabricated component transportation, and component installation and construction). The present invention aims to introduce Building Information Modeling (BIM) to manage its construction process throughout the life cycle to achieve management innovation, and reasonably apply three-dimensional laser scanning technology (Terrestrial Laser Scanning, TLS) to improve the accuracy and efficiency of the construction quality inspection of the prefabricated airport pavement, so as to achieve the overall improvement of the construction efficiency and construction quality of the prefabricated airport pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 It is the C / S architecture diagram of the service system for the construction quality inspection system of prefabricated airport pavement.

[0054] Figure 2 It is a schematic diagram of the logical framework application system used in the construction quality inspection system for prefabricated airport pavement.

[0055] Figure 3 It is a construction flow chart for prefabricated airport pavement.

[0056] Figure 4 It is a construction management flow chart used in the construction quality inspection system of prefabricated airport pavement.

[0057] Figure 5 It is a flow chart of the quality inspection method. DETAILED DESCRIPTION

[0058] The present invention provides a construction quality inspection system for assembled airport pavement based on BIM and TSL. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0059] The present invention is described in detail below in conjunction with the accompanying drawings:

[0060] Example 1

[0061] Combination Figures 1 to 5 , a prefabricated airport pavement construction quality inspection system based on BIM and TSL, including a service system, the service system is adapted to a logical framework application system, and construction management and quality control are performed through construction management methods and quality inspection methods; the service system includes a server assembly, multiple clients and several mobile terminal devices, and the server assembly includes a management server and at least one BIM model server.

[0062] The client accepts the user's request and makes a request to the server assembly through the wired network to operate the database; the server assembly accepts the client's request and submits the data to the client, and the client calculates the data and presents the results to the user; the mobile terminal device is connected to the server assembly through the 5G / 4G network; the mobile terminal device accepts the user's request and makes a request to the server assembly through the network to operate the database.

[0063] The logical framework application system includes a user layer, an application layer, a data layer and an infrastructure layer. The infrastructure layer includes a BIM basic system, a tag reader module, a 3D laser scanner module and a vehicle-mounted GPS module. The vehicle-mounted GPS module is installed on the transport vehicle to feed back the vehicle information to the management server. The 3D laser scanner module is used to scan various prefabricated components and structures.

[0064] The data layer includes a data exchange module, a data storage module, and a data analysis module. The data exchange module collects, processes, and exchanges various types of data required by the system. The data storage module stores the above data and analyzes and processes it through the data analysis module.

[0065] The application layer includes the airport pavement design module, prefabricated component production module, quality control module, prefabricated component storage and transportation module, component installation and construction module applied to the management server, and the BIM collaborative work platform module and airport pavement results management module applied to the BIM model server. The management server transmits instructions to the BIM model server, and the BIM model server makes content requests to the management server; the user layer includes the construction unit, design unit, component production unit, storage and transportation unit, construction unit and supervision unit.

[0066] A Client-Server network architecture is used between the management server, the BIM model server and the client, and a Client-Server network architecture is used between the management server, the BIM model server and the mobile terminal device. The client and the mobile terminal device are located at the front end of the C / S structure, and the server is located at the back end of the C / S structure.

[0067] The airport pavement design module is applied in the design stage. It is based on BIM technology and works through the BIM collaborative work platform to realize the airport pavement construction drawing design and design changes. The airport pavement information model formed by the airport pavement design module covers all the information of prefabricated components of assembled airport pavement, including component classification, ID coding, input person and definition component information.

[0068] There is a mapping relationship between ID codes and components. One ID code corresponds to one component. The component information contained in a component is the key information throughout the entire life cycle of the building. The information in the component includes component name, component type, component geometric information, component non-geometric information, component coordinate system, component process, component material, component batch, and component assembly plan.

[0069] The prefabricated component production module is mainly for prefabricated component manufacturers; prefabricated components are the basic entities of prefabricated buildings, and the prefabricated production module manages the production of components. The prefabricated production submodule takes over the airport pavement design module, and extracts all the attribute information of the component through the component ID code, and formulates corresponding material procurement plans and production plans based on the demand for raw materials and the matching of parts in component production, and sends them to the designated prefabricated component manufacturers through the system.

[0070] The quality control module is used for the quality management of airport pavements composed of factory prefabricated components and on-site assembly; this module works in conjunction with the prefabricated component production module and the component installation and construction module, and is connected to the airport pavement design module and the prefabricated component storage and transportation module to ensure the quality of component prefabrication and component assembly.

[0071] Example 2

[0072] In the quality control of the quality control module in Example 1, a quality control method is used for monitoring, and the quality control method includes the following:

[0073] Step A1: A construction quality inspection system for prefabricated airport pavement based on BIM and TSL is required;

[0074] Step A2: Conduct quality control inspections on prefabricated factory components and on-site component assembly, collect and store a large amount of quality-related data using 3D laser scanning technology, conduct statistical analysis and timely feedback on quality information based on quality standards, control component quality, and ensure that component products and assembly as a whole meet delivery standards;

[0075] Step A3: Strengthen the quality management of prefabricated component manufacturers to ensure that all accessories can be accurately installed on site without errors, omissions or collisions, and meet the quality inspection requirements of single prefabricated components;

[0076] Step A4: Quality management of the construction site. Before the construction of prefabricated buildings, a targeted analysis of the entire construction process is carried out. The quality problems and key points in the construction are discovered with the help of the BIM model. Through the simulation and identification of quality control points, the construction site can be reminded to focus on quality monitoring, reduce quality risks caused by technical problems during the assembly of components, and meet the overall quality inspection requirements of the airport pavement.

[0077] The prefabricated component storage and transportation module is used to store and transport prefabricated components, and to track and manage prefabricated components. In this module, radio frequency scanning equipment is used to identify prefabricated component labels, and information can be screened and relevant information can be extracted according to storage, transportation, and assembly construction requirements.

[0078] The prefabricated component storage and transportation submodule monitors the transportation and storage of prefabricated components to ensure rapid query of transportation logistics information, classifies and registers the storage of components and enters them into the system, realizes the informatization of component transportation and storage, and is used for rapid query of construction site information and reasonable formulation and assembly of construction plans based on component guarantee conditions.

[0079] The component installation and construction module is used for construction units. The component installation and construction module manages the assembly construction of prefabricated components. The component installation and construction module works in conjunction with the airport pavement design module and the quality control module, and is connected to the prefabricated component storage and transportation sub-module, so that the prefabricated component assembly construction is completed smoothly and the procedures, processes, facilities and equipment meet the relevant requirements of quality and safety.

[0080] Example 3

[0081] The construction quality inspection system of assembled airport pavement based on BIM and TSL includes a service system. The service system is adapted with a logical framework application system, and the construction production is managed and controlled through a construction management method. The construction management method includes:

[0082] Production stage: This stage is the beginning of construction management. First, the version and information integrity check of the model sent by the designer is carried out. If it passes the check, the model data conversion is required to convert the design stage model into a construction management model. After the data conversion is completed, the system will automatically extract the construction management model data information, analyze and generate the unique identification number ID and related attribute information of the assembly component. Using the assembly component ID information, the system will automatically generate component labels according to the component production progress or the order entered in advance by the manufacturer.

[0083] Warehousing stage: In this stage, the staff needs to place labels on the assembled components and perform the first laser scanning quality inspection on the components. Then, based on the actual component form and engineering needs, they design a suitable scanning strategy and select the corresponding scanning equipment to obtain the required point cloud data. The system will automatically compare the point cloud data with the design stage model, record the overall size and torsional error information of the component, and give the location and value of the error.

[0084] Transportation stage: The transportation of components is carried out in batches, and is adjusted in real time based on the location conditions and assembly progress of the construction site. The management platform will provide the location and status information of the components in the progress tracking module, providing a dynamic management basis for all parties to coordinate production and processing, transportation vehicles and actual assembly progress.

[0085] Installation phase: After the components arrive at the assembly site, workers confirm the entry of the components in the system by reading the labels on the assembled components; in the storage and placement management on site, the components will be regionally located and tracked based on the electronic anti-counterfeiting label technology, and the components will be planned on site according to the construction plan and quickly accessed through the electronic anti-counterfeiting label technology; during the installation process, workers will verify the installation location information on the management platform through the labels, providing assistance for the assembly process of many complex structural systems; after the components are successfully installed, the workers will confirm the final installation status of the components in the system through the component labels. At the same time, laser scanning will be used to regularly record key components and structures after installation, and their verticality and gap changes will be monitored in the system, so that the assembly quality can be controlled throughout the construction phase.

[0086] Example 4

[0087] The construction quality inspection system of assembled airport pavement based on BIM and TSL includes a service system. The service system is adapted to a logical framework application system. The construction management method is used to manage and control the construction production. The quality inspection method is used to inspect and control the quality of the assembled pavement, thereby achieving stable and reliable quality. The quality inspection method includes the following:

[0088] Step B1: Use the quality requirements and quality assessment indicator definition method to propose quantitative standards.

[0089] Step B2: Inspect the prefabricated factory components for quality control, use 3D laser scanning technology to collect and store a large amount of quality-related data, conduct rapid comparative analysis based on quality standards and the attributes collected during inspection, obtain inspection results, and achieve control of component quality.

[0090] Step B3: Inspect the on-site component assembly for quality control, use 3D laser scanning technology to collect and store a large amount of quality-related data, conduct rapid comparative analysis based on quality standards and the attributes collected during inspection, obtain inspection results, control the overall quality of the assembly, and determine whether the delivery standard is met.

[0091] The above-mentioned quality requirements and quality assessment index definition methods include the following:

[0092] Step C1. Determine the quality risks in the construction of prefabricated buildings and the quality inspection standards for the cement concrete surface layer of airport pavements according to relevant specifications and standards. Step C2. Formulate the inspection standards for prefabricated components and the inspection standards for component assembly according to the inspection methods for prefabricated components, determine the basic specification requirements for cement concrete, and conduct matching inspections according to project requirements. Step C3. Formulate the inspection standards for prefabricated components and the inspection standards for component assembly. Step C4. Determine the appearance standards for components and check whether the appearance of prefabricated components meets the requirements.

[0093] The quality inspection method also includes the prefabricated component quality inspection method and the component assembly quality inspection method;

[0094] The quality inspection methods for prefabricated components include the following:

[0095] Step D1: According to the inspection standards for prefabricated components, the inspection properties and corresponding inspection standards of various prefabricated components in the BIM model of the assembled airport pavement are quantified to establish a mapped inspection database; Step D2: 3D laser scanning technology is used to identify and inspect the appearance parameters of components during the component manufacturing process, and the inspection data is processed into a type with the same storage structure as the inspection database; Step D3: Finally, the two are indexed by barcode information and traversed using binary search to achieve rapid comparative analysis of inspection properties, and components that do not meet the standards are given ID numbers in the BIM model.

[0096] The component assembly quality methods include the following:

[0097] Step E1, according to the inspection standard of component assembly, the inspection attributes of component assembly in the BIM model of the prefabricated airport pavement and the corresponding inspection standards are quantified to establish a mapped inspection database; Step E2, use 3D laser scanning technology to identify and detect the appearance parameters of component assembly, and process the inspection data into a type with the same storage structure as the inspection database; Step E3, finally, the digital airport pavement model formed by 3D laser scanning technology is quickly compared and analyzed with the BIM model in the design stage, and the attributes and positions that do not meet the standards are given in the BIM model.

[0098] Example 5

[0099] The construction quality inspection system for prefabricated airport pavement is used for the construction of prefabricated airports. It is based on BIM and TSL technology and includes a management server and five BIM model servers, multiple clients and several types of mobile terminal devices, which are also called mobile clients.

[0100] The server (including the management server and the BIM model server) and the client use a Client-Server (C / S) structure. The client is connected to the server via LAN / WAN, accepts user requests, and makes requests to the server through the network to operate the database. The server accepts the client's request, submits the data to the client, and the client calculates the data and presents the results to the user. The server and the mobile terminal device use a C / S architecture. The mobile terminal device is connected to the server via 5G / 4G, accepts user requests, and makes requests to the server through the network to operate the database.

[0101] The server accepts the client's request and submits the data to the client. The client calculates the data and presents the result to the user. The client and mobile terminal device are located at the front end of the C / S structure, and the server (including the management server and BIM model server) is located at the back end of the C / S structure. Figure 1 The C / S architecture diagram of the service system for the construction quality inspection system of prefabricated airport pavement.

[0102] The above-mentioned BIM and TSL-based inspection system for the construction quality of prefabricated airport pavement, from the perspective of system logical structure, the logical framework application system includes four parts: user layer, application layer, data layer and infrastructure layer. Figure 2The logical framework application system diagram of the system. The infrastructure layer includes the BIM basic system, tag reader module, 3D laser scanner module, and vehicle GPS module. The data layer includes data exchange module, data storage module, and data analysis module. The application layer includes the BIM model server module and management server module. The user layer includes the reference unit modules involved in the construction of prefabricated airport pavement.

[0103] The prefabricated airport pavement in the present invention introduces BIM technology, which mainly provides two aspects of services.

[0104] The first is to innovate the management mechanism.

[0105] Integrate the resources of various units involved in the construction of prefabricated airport pavements, improve management efficiency, and save process time. The construction process of prefabricated airport pavements generally includes production stage, transportation stage, warehousing stage, and installation stage. According to the construction process of prefabricated airport pavements, the BIM technology is combined to integrate, store and optimize its full life cycle information, from airport pavement design, prefabricated component production, prefabricated component warehousing, prefabricated component transportation, and component installation and construction (combined with Figure 3 From the perspective of the prefabricated airport pavement construction flow chart), it provides building information management services for users at all levels, thereby innovating the prefabricated building management system, improving construction efficiency, saving costs, and increasing economic benefits.

[0106] The second is to innovate technical means to realize information sharing and transmission throughout the life cycle of airport construction projects.

[0107] By utilizing the advantages of BIM models in building information integration, sharing and transmission, as well as the integrated management characteristics in the design, production and processing, storage and transportation, and on-site assembly of prefabricated airport pavement components, a unified collaborative work platform is constructed to solve the problem of poor communication between construction entities, so that the information flow, material flow and human resource flow in the prefabricated building construction process can be effectively integrated, providing effective support for the tracking and control of construction progress and quality.

[0108] The BIM model server module includes the BIM collaborative work module and the airport pavement BIM achievement management module. The BIM collaborative work module provides BIM resource sharing, standard implementation, information collaboration, various achievement management, statistical analysis and other functions. The airport pavement BIM achievement management module provides airport pavement BIM achievement management and other functions.

[0109] Example 6

[0110] The management server module is the core of the system, including multiple submodules, such as airport pavement design submodule, prefabricated component production submodule, quality control submodule, prefabricated component storage and transportation submodule, prefabricated component installation and construction submodule, etc.

[0111] Among them, the airport pavement design submodule is applied in the design stage, based on BIM technology, and works through the BIM collaborative work platform to realize the airport pavement construction drawing design and design changes. The building information model of the airport pavement can be composed of various surface layer categories.

[0112] For example, during the construction of an airport pavement in a prefecture-level city in my country, there are 9 different surface layer categories in the BIM platform of the prefabricated airport pavement, namely 16cm, 28cm, 12cm, 25cm, 18cm, 40cm, 36cm, 28cm-36cm, and 36cm-40cm, so as to fully adapt to the various requirements of prefabricated airport pavements. BIM exchanges data based on the IFC standard, and uses BIM software as a platform to carry out multi-professional collaborative design, parallel design, and remote design. During the design, all factors in the entire life cycle of the airport pavement can be taken into account at the same time, such as design, force analysis, manufacturability, and assemblability, reducing repetitions, shortening design time, and forming an efficient and high-quality integrated design.

[0113] In addition, the airport pavement information model formed by the airport pavement design submodule covers all the information of prefabricated airport pavement components, including component classification, coding (ID identity), input and definition of component information. There is a mapping relationship between the component ID code and the component. One ID code corresponds to one component. The component information contained in a component is the key information throughout the entire life cycle of the building. The component information includes component name, component type, component geometric information, component non-geometric information, component coordinate system, component process, component material, component batch, component assembly plan, etc.

[0114] The component prefabrication production submodule is mainly for prefabricated component manufacturers. Prefabricated components are the basic entities of prefabricated buildings, and the prefabrication production submodule manages the production of components. The prefabrication production submodule takes over the airport pavement design submodule, extracts component attribute information, such as component type, quantity, process requirements, etc., and formulates corresponding material procurement plans and production plans based on the demand for raw materials and the matching of parts in component production.

[0115] The prefabrication production submodule provides management modules including component construction data analysis, production planning management, production scheduling management, inventory management, human resource management, work center / equipment management, tool and fixture management, procurement management, cost management, bottom-level data integration analysis, and upper-level data integration decomposition, creating a solid, reliable, comprehensive, and feasible production management platform for prefabricated component manufacturers. In addition, the prefabrication production submodule also provides labels (QR codes) to mark prefabricated components. The labels integrate the information coding of the components, and the attribute information of the coding mapping has been defined by the airport pavement design submodule during the design phase.

[0116] The quality control submodule is used to manage the quality of the airport pavement composed of factory prefabricated components and on-site assembly. This module works in conjunction with the prefabricated component production submodule and the component installation and construction submodule, and is connected with the airport pavement design submodule and the prefabricated component storage and transportation submodule. The ultimate goal is to ensure the quality of component prefabrication and component assembly.

[0117] In quality control, we first need to define quality requirements and quality assessment indicators and propose quantitative standards. Secondly, we conduct inspections on the two key links of quality control (quality management of prefabricated components in factories and assembly of components on site), apply 3D laser scanning technology to collect and store a large amount of quality-related data, and conduct statistical analysis and timely feedback on quality information according to quality standards to achieve control of component quality and ensure that component products and assembly as a whole meet delivery standards.

[0118] Factory prefabrication is the key to quality assurance of prefabricated components. It is necessary to ensure that all accessories can be accurately installed on site without errors, omissions or collisions, and meet the quality inspection requirements of single prefabricated components. Before the construction of prefabricated buildings, targeted analysis of the entire construction process is carried out, and quality problems and quality points in the construction are discovered with the help of BIM models. Through the simulation and identification of quality control points, the construction site can be reminded to focus on quality monitoring, reduce quality risks caused by technical problems during the assembly of components, and meet the overall quality inspection requirements of airport pavements. In addition, the quality control submodule meets the requirements of rapid query of quality information for building products, and realizes quality control and quality information integration of airport pavement delivery.

[0119] The prefabricated component storage and transportation submodule is used to store and transport prefabricated components, and to track and manage prefabricated components. This module has the function of reading prefabricated component labels. Through radio frequency scanning equipment identification, it can filter information according to storage, transportation, and assembly construction requirements, and extract relevant information, such as component model, size, batch, manufacturer, transportation destination, storage requirements, assembly batch, assembly requirements, etc. The prefabricated component storage and transportation submodule monitors the transportation and storage of prefabricated components, ensures rapid query of transportation logistics information, classifies and registers the storage of components and enters them into the system, realizes the informatization of component transportation and storage, and ensures that the construction site reasonably formulates assembly construction plans based on the component guarantee situation to improve construction efficiency.

[0120] The component installation and construction submodule is mainly for construction units. The installation and construction of prefabricated components is the foundation for the construction of prefabricated airport pavements. The component installation and construction submodule manages the assembly and construction of prefabricated components. The component installation and construction submodule works in conjunction with the airport pavement design submodule and the quality control submodule, and is connected to the prefabricated component storage and transportation submodule. The ultimate goal is to ensure the smooth completion of the assembly and construction of prefabricated components, so that the process, technology, facilities and equipment meet the relevant requirements of quality and safety, and ensure delivery.

[0121] Example 7

[0122] According to the construction of a prefabricated airport pavement in a prefecture-level city in my country in Example 6, in the above-mentioned BIM and TSL-based construction quality inspection system for prefabricated airport pavements, the user layer includes modules of various reference units involved in the construction of prefabricated airport pavements, and the main functions are as follows. Table 1 shows the responsibilities of various reference units involved in the construction of prefabricated airport pavements in this embodiment and the services provided by the BIM module.

[0123]

[0124] Table 1

[0125] Example 8

[0126] In the above-mentioned construction quality inspection system for prefabricated airport pavements, the system is based on a collaborative digital management, which aggregates and integrates the information of the construction unit, design unit, supervision unit, prefabricated component production unit, warehousing company, transportation company and construction unit, so that the information of the prefabricated airport pavement construction can be shared and transmitted among all parties, thereby minimizing assembly errors or project delays caused by the lack of smooth construction information. First, it realizes current management innovation, and second, it improves efficiency. This collaborative digital management is realized in combination with the actual construction process of prefabricated airport pavement construction (airport pavement design, prefabricated component production, prefabricated component warehousing, prefabricated component transportation, and component installation and construction), and the process is as follows. Combined with Figure 4 The construction management flow chart of the construction quality inspection system for prefabricated airport pavement.

[0127] The contents of each stage include the following:

[0128] 1) Production stage. This stage is the beginning of construction management. First, the version and information integrity of the model sent by the designer are checked. After passing the check, the model data needs to be converted to convert the design stage model into a construction management model, which is usually a model lightweight operation. After the data conversion is completed, the system will automatically extract the construction management model data information, analyze and generate the unique identification number (ID) and related attribute information of the assembly component. Using the ID information of the assembly component, the system will automatically generate a component label (QR code paper label) according to the component production schedule or the order entered in advance by the manufacturer.

[0129] 2) Warehousing stage. In the warehousing stage before the components leave the factory, the staff needs to place labels on the assembled components, and also needs to perform the first laser scanning quality inspection on the components. In combination with the actual component form and engineering needs, design a suitable scanning strategy and select the corresponding scanning equipment to obtain the required point cloud data. The system will automatically compare the point cloud data with the design stage model, record the overall size and torsion error information of the component, and give the location and value of the larger error.

[0130] 3) Transportation stage. The transportation of assembly components is often carried out in batches, and needs to be adjusted in real time based on the location of the construction site and the assembly progress. The management platform will provide the location and status information of the components in the progress tracking module, which can provide a dynamic management basis for all parties to coordinate production and processing, transportation vehicles and actual assembly progress.

[0131] 4) Installation stage. After the components arrive at the assembly site, workers confirm the entry of the components in the system by reading the tags on the assembled components. In the on-site storage and placement management, the components will be regionally located and systematically tracked based on RFID, and the components will be planned according to the construction plan on the site and quickly accessed through RFID; during the installation process, workers will check the installation location information on the management platform through the tags, which can provide assistance for the assembly process of many complex structural systems. After the components are successfully installed, the workers will confirm the final installation status of the components in the system through the component tags. At the same time, laser scanning is used to regularly record key components and structures after installation, and their verticality and gap changes are monitored in the system, so that the assembly quality can be controlled throughout the construction stage.

[0132] Example 9

[0133] The quality inspection method for construction in this system is implemented based on the construction management method of prefabricated airport pavement. Figure 5 The quality inspection method in FIG. 1 includes the following steps:

[0134] Firstly, the quality requirements and quality assessment indicators are defined and quantitative standards are proposed.

[0135] Secondly, the prefabricated factory components, one of the two key links in quality control, are inspected. 3D laser scanning technology is used to collect and store a large amount of quality-related data. A rapid comparison and analysis is performed based on quality standards and the attributes collected during the inspection to obtain the inspection results and achieve control over the component quality.

[0136] Finally, the second of the two key links in quality control, on-site component assembly, was inspected, and 3D laser scanning technology was used to collect and store a large amount of quality-related data. A rapid comparative analysis was performed based on quality standards and the attributes of the inspection and collection to obtain the inspection results, thereby achieving control over the overall quality of the assembly and meeting the delivery standards.

[0137] In the above-mentioned BIM and TSL-based inspection method for the construction quality of prefabricated airport pavements, "quality requirements and quality assessment indicators are defined, and quantitative standards are proposed", including the following:

[0138] 1) Find relevant specifications and standards.

[0139] (1) In view of the quality risks in the construction of prefabricated buildings, the Technical Standard for Prefabricated Concrete Buildings GB / T51231-2016 clearly states that the appearance quality of the concrete of prefabricated components should not have strict defects, and the dimensional deviation that affects the structural performance and installation and use functions should not be used. The quality inspection of prefabricated components is mainly carried out in terms of "appearance quality" and "dimensional deviation". The inspection methods are: observation, measurement; inspection and processing records. Inspection quantity: full inspection.

[0140] (2) The “Civil Airport Runway Engineering Quality Inspection and Assessment Standard MH 5007-2017” has the following three aspects for the inspection and assessment of cement concrete surface engineering quality:

[0141] First, basic requirements

[0142] 1. The mechanical properties, physical properties and chemical composition of cement meet the requirements of design and construction specifications.

[0143] 2. The technical indicators of raw materials such as coarse / fine aggregates, water, admixtures and joint fillers meet the requirements of design and construction specifications.

[0144] 3. The construction mix ratio complies with the requirements of design and construction specifications.

[0145] 4. The types, specifications, quantity, cutting dimensions and technical indicators of steel bars shall comply with the requirements of design and construction specifications.

[0146] 5. The production and installation of templates shall comply with the requirements of design and construction specifications.

[0147] 6. The setting of joints, force transfer rods, tie rods and embedded parts shall comply with the requirements of design and construction specifications.

[0148] 7. The mixing, spreading, vibrating, finishing, roughening and curing of cement concrete shall comply with the design and construction specifications.

[0149] Second, the measured items shall be inspected according to the requirements of “Table 2 Measurement Items for Cement Concrete Surface Layer”.

[0150]

[0151]

[0152] Third, appearance inspection

[0153] 1. No serious defects, including broken boards, through cracks, misalignment, broken edges and corners, large-scale peeling / flaking / exposed stones, etc. 2. The following general defects should not exist: localized small-scale peeling, peeling, exposed stones, sticky slurry, imprints, accumulations, hairline cracks, honeycombs, and rough surfaces. 3. The surface texture is uniform. 4. The caulking material is full and firmly bonded, without cracks, shedding, bubbles, and the seam edges are clean and neat.

[0154] 2) Establish inspection standards for prefabricated components and inspection standards for component assembly.

[0155] The quality inspection of prefabricated components includes the following: According to the quality inspection standards for prefabricated components defined above, the inspection properties and corresponding inspection standards of various prefabricated components in the BIM model of the assembled airport pavement are quantified, and a mapped inspection database is established. 3D laser scanning technology is used to identify and inspect the appearance parameters during the component manufacturing process, and the inspection data is processed into a type with the same storage structure as the inspection database. Finally, the two are indexed by barcode information and traversed using binary search to achieve rapid comparative analysis of inspection properties, and components that do not meet the standards are given ID numbers in the BIM model.

[0156] The quality inspection of component assembly (for the overall construction of airport pavement) includes the following:

[0157] According to the quality inspection standards for component assembly (overall construction of airport pavement) defined above, the inspection attributes and corresponding inspection standards of component assembly (overall construction of airport pavement) in the BIM model of prefabricated airport pavement are quantified, and a mapped inspection database is established.

[0158] 3D laser scanning technology is used to identify and detect the appearance parameters of component assembly (integrated construction of airport pavement), and the detection data is processed into a type with the same storage structure as the detection database.

[0159] Finally, the digital airport pavement model formed by 3D laser scanning technology is quickly compared and analyzed with the BIM model in the design phase, and the attributes and locations that do not meet the standards are given in the BIM model.

[0160] Parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

[0161] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. The construction quality inspection system of prefabricated airport pavement based on BIM and TSL is characterized by: Including service system, the service system is adapted to the logical framework application system, and construction management and quality control are carried out through construction management methods and quality inspection methods; The service system includes a server assembly, multiple clients and several mobile terminal devices, and the server assembly includes a management server and at least one BIM model server; The client accepts the user's request, makes a request to the server assembly through the wired network, and operates the database; The server assembly accepts the client's request and submits the data to the client, which calculates the data and presents the result to the user; The mobile terminal device is connected to the server assembly via the 5G / 4G network; the mobile terminal device receives the user's request and makes a request to the server assembly via the network to operate the database; The logical framework application system includes a user layer, an application layer, a data layer and an infrastructure layer. The infrastructure layer includes a BIM basic system, a tag reader module, a 3D laser scanner module and a vehicle-mounted GPS module. The vehicle-mounted GPS module is installed on the transport vehicle to feed back the vehicle location information to the management server. The 3D laser scanner module is used to scan prefabricated components. The data layer includes a data exchange module, a data storage module, and a data analysis module. The data exchange module collects, processes, and exchanges all types of data required by the system. The data storage module stores the above data and processes it through the data analysis module. The application layer includes the airport pavement design module, prefabricated component production module, quality control module, prefabricated component storage and transportation module, and component installation and construction module applied to the management server; and the BIM collaborative work platform module and airport pavement achievement management module applied to the BIM model server; The management server transmits instructions to the BIM model server, and the BIM model server makes content requests to the management server; the user layer includes the construction unit, design unit, component production unit, storage and transportation unit, construction unit and supervision unit; A Client-Server network architecture is used between the management server, the BIM model server and the client, and a Client-Server network architecture is used between the management server, the BIM model server and the mobile terminal device. The client and the mobile terminal device are located at the front end of the Client-Server network architecture, and the server is located at the back end of the Client-Server network architecture. The airport pavement design module is applied in the design stage, and works through the BIM collaborative work platform to realize the airport pavement construction drawing design and design changes; The airport pavement information model formed by the airport pavement design module covers the information of prefabricated components of assembled airport pavement, including component classification, ID coding, input person and component definition information; There is a mapping relationship between ID codes and components. One ID code corresponds to one component. The component information contained in a component is key information throughout the entire life cycle of the building. The information in the component includes component name, component type, component geometric information, component non-geometric information, component coordinate system, component process, component material, component batch, and component assembly plan; The prefabricated component production module is for prefabricated component manufacturers; Prefabricated components are the basic entities of prefabricated buildings, and the prefabrication production module manages the production of components; The prefabrication production submodule takes over the airport pavement design module and extracts all the attribute information of the component through the component ID code. It also formulates the corresponding material procurement plan and production plan based on the demand for raw materials and the matching of parts in the component production, and sends them to the designated prefabricated component manufacturer through the system; The quality control module is used for the quality management of the airport pavement composed of factory prefabricated components and on-site construction and assembly; it works in coordination with the prefabricated component production module and the component installation and construction module, and is connected with the airport pavement design module and the prefabricated component storage and transportation module to ensure the quality of component prefabrication and component assembly; In the quality control of the quality control module, a quality control method is used for monitoring, and the quality control method includes the following: Step A1 requires a BIM and TSL-based prefabricated airport pavement construction quality inspection system; Step A2: Conduct quality control inspections on prefabricated factory components and on-site component assembly. Use 3D laser scanning technology to collect and store a large amount of quality-related data. Perform statistical analysis and timely feedback on quality information based on quality standards to control component quality and ensure that component products and assembly as a whole meet delivery standards. Step A3: Strengthen the quality management of prefabricated component manufacturers to ensure that all accessories can be accurately installed on site without errors, omissions or collisions, and meet the quality inspection requirements of single prefabricated components; Step A4, quality management of the construction site. Before the construction of prefabricated buildings, targeted full-process construction analysis is carried out. With the help of BIM models, quality problems and quality points in construction are discovered. Through simulation and identification of quality control points, the construction site can be reminded to focus on quality monitoring, reduce quality risks caused by technical problems during the assembly of components, and meet the overall quality inspection requirements of airport pavements. The construction management method comprises: Production stage: As the beginning of construction management, the model sent by the designer is first checked for version and information integrity. After passing the check, the model data is converted to convert the design stage model into a construction management model. After the data conversion is completed, the system will automatically extract the construction management model data information, analyze and generate the unique identification number ID and related attribute information of the assembly component. Using the assembly component ID information, the system will automatically generate component labels according to the component production schedule or the order entered in advance by the manufacturer; Warehousing stage: Workers need to place labels on assembled components and conduct the first laser scanning quality inspection on the components. Based on the actual component form and engineering needs, they need to design appropriate scanning strategies and select corresponding scanning equipment to obtain the required point cloud data. The system will automatically compare the point cloud data with the design stage model, record the overall size and torsion error information of the component, and provide the location and value of the error; Transportation stage: The transportation of components is carried out in batches, and the assembly progress is adjusted in real time based on the location of the construction site and the progress of assembly. The management platform will provide the location and status information of the components in the progress tracking module, providing a dynamic management basis for all parties to coordinate production and processing, transportation vehicles and actual assembly progress; Installation phase: After the components arrive at the assembly site, workers confirm the entry of the components in the system by reading the labels on the assembled components; in the on-site storage and placement management, the components will be regionally located and systematically tracked based on the electronic anti-counterfeiting label technology, and the components will be planned on site according to the construction plan and quickly accessed through the electronic anti-counterfeiting label technology; during the installation process, workers will check the installation location information on the management platform through the labels, providing assistance for the assembly process of many complex structural systems; after the components are successfully installed, workers will confirm the final installation status of the components in the system through the component labels, and use laser scanning to regularly record the key components and structures after installation, and monitor their verticality and gap changes in the system, so that the assembly quality can be controlled during the entire construction phase; The quality detection method includes the following: Step B1, adopt the quality requirements and quality assessment index definition method to propose quantitative standards; Step B2, inspect the prefabricated factory components for quality control, use 3D laser scanning technology to collect and store quality-related data, conduct rapid comparative analysis based on quality standards and the attributes collected during inspection, obtain inspection results, and achieve control of component quality; Step B3, for quality control, on-site component assembly is inspected, and a large amount of quality-related data is collected and stored using 3D laser scanning technology. A rapid comparison and analysis is performed based on the quality standards and the attributes collected during the inspection to obtain the inspection results, control the overall quality of the assembly, and determine whether the delivery standard is met; The quality requirements and quality assessment index definition methods include the following: Step C1, determine the quality risks in the construction of prefabricated buildings and the quality inspection standards for the airport pavement cement concrete surface layer according to relevant specifications and standards; Step C2, according to the inspection method of prefabricated components, formulate the inspection standards of prefabricated components and the inspection standards of component assembly, determine the basic specification requirements of cement concrete, and conduct matching inspection according to project requirements; Step C3, formulating the inspection standards for prefabricated components and the inspection standards for component assembly; Step C4, determining the appearance standard of the component and checking whether the appearance of the prefabricated component meets the requirements; The quality inspection method also includes a prefabricated component quality inspection method and a component assembly quality inspection method; The quality inspection methods for prefabricated components include the following: Step D1: According to the inspection standards for prefabricated components, the inspection properties and corresponding inspection standards of various prefabricated components in the BIM model of the assembled airport pavement are quantitatively processed to establish a mapped inspection database; Step D2: 3D laser scanning technology is used to identify and inspect the appearance parameters of components during the component manufacturing process, and the inspection data is processed into a type with the same storage structure as the inspection database; Step D3: Finally, the two are indexed by barcode information and traversed by binary search to achieve rapid comparative analysis of inspection properties, and components that do not meet the standards are given in the BIM model by ID numbers; The component assembly quality methods include the following: Step E1, according to the inspection standard of component assembly, the inspection attributes of component assembly in the BIM model of the prefabricated airport pavement and the corresponding inspection standards are quantified to establish a mapped inspection database; Step E2, using 3D laser scanning technology to identify and inspect the appearance parameters of component assembly, and process the inspection data into a type with the same storage structure as the inspection database; Step E3, finally, the digital airport pavement model formed by 3D laser scanning technology is quickly compared and analyzed with the BIM model in the design stage, and the attributes and positions that do not meet the standards are given in the BIM model.

2. The BIM and TSL-based prefabricated airport pavement construction quality inspection system according to claim 1 is characterized in that: The prefabricated component storage and transportation module is used to store and transport prefabricated components and to track and manage the prefabricated components; By using radio frequency scanning equipment to identify prefabricated component labels, information can be screened and relevant information can be extracted according to storage, transportation, and assembly construction requirements; The prefabricated component storage and transportation submodule monitors the transportation and storage of prefabricated components to ensure rapid query of transportation logistics information, classifies and registers the storage of components and enters them into the system, realizes the informatization of component transportation and storage, and is used for rapid query of construction site information and reasonable formulation and assembly of construction plans based on component guarantee conditions.

3. The BIM and TSL-based prefabricated airport pavement construction quality inspection system according to claim 2 is characterized in that: The component installation and construction module is used for construction units. The component installation and construction module manages the assembly construction of prefabricated components. The component installation and construction module works in conjunction with the airport pavement design module and the quality control module, and is connected to the prefabricated component storage and transportation sub-module, so that the prefabricated component assembly construction is completed smoothly and the procedures, processes, facilities and equipment meet the relevant requirements of quality and safety.

Images