A method of airport project management based on BIM model

Abstract

The present invention discloses a method for managing airport projects based on a BIM model, including: obtaining various professional processes in the airport project and collecting corresponding data; determining the standard information of the BIM model; establishing various professional BIM models; establishing various professional BIM models based on the data and standard information corresponding to each professional process; obtaining lightweight models according to various professional BIM models and uploading them to a quality inspection and evaluation system; establishing an inspection batch in the quality inspection and evaluation system; linking the lightweight model with the inspection batch, and managing the measurement and pricing of the airport project according to the linking result. Accurately constructing a BIM model, conducting construction management according to the BIM model, and conducting measurement and pricing according to the model can achieve efficient management of the airport project.

Description

Technical Field

[0001] The present invention relates to the technical field of airport engineering management, and in particular to an airport engineering management method based on a BIM model. Background Art

[0002] At present, major airports across the country have applied BIM technology to airport construction. However, BIM technology cannot be used efficiently for modeling in airport construction, and the modeling is not accurate enough, which leads to large errors in construction management. At the same time, it is impossible to perform measurement and pricing based on the model, and it is impossible to achieve efficient management of airport projects. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the above-mentioned technologies to a certain extent. To this end, the purpose of the present invention is to propose an airport project management method based on the BIM model, accurately construct the BIM model, perform construction management according to the BIM model, perform measurement and pricing according to the model, and realize efficient management of the airport project.

[0004] To achieve the above object, an embodiment of the present invention proposes an airport engineering management method based on a BIM model, comprising:

[0005] Obtain various professional processes in airport engineering and collect corresponding data;

[0006] Determine standard information of BIM model;

[0007] Establish professional BIM models based on the data and standard information corresponding to each professional process;

[0008] Obtain lightweight models based on each professional BIM model and upload them to the quality inspection and evaluation system;

[0009] Establish inspection lots in the quality inspection and evaluation system;

[0010] The lightweight model is linked to the inspection batch, and the measurement and pricing of the airport project is managed based on the linking results.

[0011] According to some embodiments of the present invention, a lightweight model is obtained according to each professional BIM model and uploaded to a quality inspection and evaluation system, including:

[0012] Classify and categorize professional BIM models according to the contract list pricing rules, divide the professional BIM models of the same category into unified layers by establishing layers, and encode each classified professional BIM model;

[0013] Adjust the encoded model to obtain an adjusted model;

[0014] The adjustment model is reviewed. After passing the review, the adjustment model is lightweighted to obtain a lightweight model and upload it to the quality inspection and evaluation system.

[0015] According to some embodiments of the present invention, obtaining various professional processes in airport engineering and collecting corresponding data include:

[0016] A quality inspection and evaluation process tree is established based on the professional processes and construction data collection requirements in the airport project, and the design and construction reporting standards and quality inspection and evaluation reporting instructions are provided.

[0017] According to some embodiments of the present invention, determining standard information of a BIM model includes:

[0018] The component information table and BIM model are introduced to implement standard and specification management, providing standard support for BIM modeling plug-ins.

[0019] According to some embodiments of the present invention, adjusting the encoded model to obtain an adjusted model includes:

[0020] The model quantities of the encoded model are exported through the plug-in, and the list quantities, model quantities, drawing quantities and actual on-site quantities are reviewed, abnormal models are identified and adjusted to obtain the adjusted model.

[0021] According to some embodiments of the present invention, lightweight processing is performed on the adjustment model to obtain a lightweight model, including:

[0022] Lightweighting the adjustment model to retain the attribute information required by the model components; the attribute information includes geometric attributes, metrological attributes and industry attributes;

[0023] The lightweight model is debugged based on a specific software lightweight plug-in, and after debugging is correct, a lightweight model is obtained.

[0024] According to some embodiments of the present invention, establishing an inspection lot in a quality inspection and evaluation system includes:

[0025] Establish corresponding inspection batches in different professional models as required, and add the required form information and construction process information.

[0026] According to some embodiments of the present invention, the lightweight model is linked to the inspection batch, and the metering and pricing management of the airport project is performed according to the linking result, including:

[0027] Receive input information determined by the user through filtering component coding information; the input information includes the list item code, list item name, list item characteristics, list measurement unit, output quantity attribute, conversion formula and output quantity method of the corresponding item;

[0028] Fill the input information into the quality inspection and evaluation system-bid section sub-library table to complete the metrological information step of the model inspection batch push;

[0029] The engineering cost module of the quality inspection and evaluation system receives the user's click information; the click information includes the cost code of a click on a single list item; based on the click information, the converted engineering quantity, output quantity attributes, unit price and comprehensive price of a single component of the corresponding project are queried, and an Excel spreadsheet is exported to verify the engineering quantity. After confirmation, the component is pushed for measurement and pricing, thus completing the model measurement and pricing work.

[0030] According to some embodiments of the present invention, each classified professional BIM model is encoded, including:

[0031] Determine the coded component library, which includes all components in the BIM model created for the airport project;

[0032] Before determining the code, the physical components are split and combined according to each professional BIM model division and application requirements, and a model classification table is established;

[0033] Based on the model classification table, each professional BIM model is encoded using an unnamed component encoding method or a named component encoding method.

[0034] According to some embodiments of the present invention, before classifying and categorizing the professional BIM models according to the contract list pricing rules, the method further includes:

[0035] Conduct collision checks on each professional BIM model, detect collision points and make adjustments by performing boundary collisions and mold closing with other bidding sections;

[0036] Optimize each professional BIM model to obtain an optimized model.

[0037] The present invention proposes an airport engineering management method based on the BIM model, accurately constructs each BIM model, deepens the design of drawings based on the BIM model, promotes the BIM three-dimensional collaborative design of the whole life cycle of integrated survey, planning and design, and performs site simulation, engineering quantity statistics, process simulation, visual disclosure and other work based on BIM technology, so as to provide a data foundation and technical guarantee based on the BIM model for subsequent construction management and operation. The BIM model is used to complete the original site model analysis, earthwork balance design, foundation treatment design, drainage design and slope design of the project, so as to optimize the design scheme. The goal of achieving the application of BIM in the whole process and the whole life cycle and digital lean construction is achieved, based on the application of information models in the whole process of project construction, improving the predictability and controllability of the construction management of this project, enhancing the collaborative management ability of the project, assisting the project cost control and the control of the construction cycle, and improving the construction efficiency and construction quality of the project. Construction management is carried out according to the BIM model, and measurement and pricing are carried out according to the model, so as to realize efficient management of the airport project.

[0038] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0039] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0041] Figure 1 is a flow chart of an airport engineering management method based on a BIM model according to an embodiment of the present invention;

[0042] Figure 2 is a schematic diagram of performing collision check on a pipeline BIM model according to an embodiment of the present invention;

[0043] Figure 3 is a schematic diagram of forward three-dimensional image output according to an embodiment of the present invention;

[0044] Figure 4 Schematic diagram of a three-dimensional steel bar model according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0046] like Figure 1 As shown, the embodiment of the present invention proposes an airport engineering management method based on a BIM model, including steps S1-S6:

[0047] S1. Obtain various professional processes in airport engineering and collect corresponding data;

[0048] S2. Determine the standard information of the BIM model;

[0049] S3. Establish each professional BIM model based on the data and standard information corresponding to each professional process;

[0050] S4. Obtain lightweight models based on the BIM models of each discipline and upload them to the quality inspection and evaluation system;

[0051] S5. Establish inspection batches in the quality inspection and evaluation system;

[0052] S6. Link the lightweight model with the inspection batch and manage the measurement and pricing of the airport project based on the linking results.

[0053] The working principle of the above technical solution: Step S4: including: dividing and classifying various professional BIM models according to the contract list pricing rules, dividing the professional BIM models of the same type into a unified layer by establishing layers, and encoding each classified professional BIM model; adjusting the encoded model to obtain an adjusted model; reviewing the adjusted model, and after the review is passed, lightweighting the adjusted model to obtain a lightweight model and uploading it to the quality inspection and evaluation system.

[0054] In this embodiment, the various professional processes in the airport project include earthwork engineering, pavement engineering, drainage engineering, fire rescue engineering, etc.

[0055] In this embodiment, each professional BIM model is established based on the data and standard information corresponding to each professional process, including software and hardware configuration: the project is equipped with Revit2018 modeling software, Bentley genuine software package and video and other professional application software, and is equipped with 10 workstations, 4 mobile workstations, 2 aerial photography drones, 1 aerial survey drone, 1 VR virtual reality equipment, 1 3D scanner and other hardware facilities to assist BIM application. Revit2018 and Bentley series software are used to model earthwork engineering, pavement engineering, drainage engineering, fire rescue engineering, etc. in the airport project, and the design drawings are deepened through BIM software to form a 3D airport model. The deepening process is similar to a construction rehearsal, which can find unreasonable drawings and collision points in advance and modify them, and take the form of boundary confirmation and mold closing with the bidding sections with boundary problems to ensure boundary closure. CNCCBIM OpenRoads software in the Bentley series of software was used to build the earthwork model, ProStructures CE software was used to build the steel bar model, MicroStation CE software was used to build the structural layer model, and OpenPlant Modeler software was used to build the fire pipeline model; revit2018 software was used to build the fire pump room model in the fire rescue project.

[0056] In this embodiment, each professional BIM model is divided and classified according to the contract list pricing rules, and the professional BIM models of the same type are divided into a unified layer by establishing layers, and each classified professional BIM model is encoded; this facilitates the classification of each professional BIM model, thereby achieving fast encoding processing and improving the encoding rate.

[0057] In this embodiment, the encoded model is adjusted to obtain an adjusted model, which makes it easier to find abnormal models and make adjustments to obtain an accurate model.

[0058] In this embodiment, the adjustment model is reviewed, and after the review is passed, the adjustment model is lightweight processed to obtain a lightweight model and uploaded to the quality inspection and evaluation system; since the model is large in size but difficult to identify, it cannot be imported into the quality inspection and evaluation system platform, and the model is lightweight processed, that is, while compressing the model, the attribute information required by the model components is retained, including geometric attributes, metrological attributes, and industry attributes, etc., to ensure that the model can be opened normally on the browser side, which is convenient for subsequent measurement and pricing. By developing lightweight plug-ins for specific software and continuously debugging them to ensure accuracy, the lightweight models of various professional models are uploaded to the quality inspection and evaluation system.

[0059] In this embodiment, an inspection batch is established in the quality inspection and evaluation system. The inspection batch is the basic unit for project quality acceptance. BIM technology is to model and measure components as the smallest unit. By analyzing the construction characteristics and parameters of each professional test section (taking earthwork engineering as an example, the design virtual paving thickness is 80cm. Through the construction of the test section, it is determined that the thickness after normal construction rolling is 75cm, and the model is divided into 75cm layers), combined with the design and specification requirements, the model components are reasonably divided into inspection batches, one component is an inspection batch, or multiple components are an inspection batch, and the corresponding inspection batch number is marked in the component attributes to facilitate construction guidance, thereby ensuring the construction order, facilitating quality acceptance, and controlling key processes. Cutting inspection batch range: Use the corresponding modeling software to process the divided inspection batches, draw CAD drawings such as complex node two-dimensional section diagrams and inspection batch range diagrams, mark the coordinates and elevations of the structural reference points, and use a combination of online and offline briefings to hand them over to on-site construction management personnel to guide on-site model construction. Division principle: Divide the model inspection batch into blocks according to the actual situation on site to ensure that the construction is convenient while meeting the design requirements; at the same time, write the inspection batch number on the model to facilitate subsequent model attachment.

[0060] In this embodiment, the lightweight model is linked to the inspection batch, and the airport project is managed for measurement and pricing based on the linking results. Model attachment is the most critical and effective step in measurement and pricing. Its purpose is to link the lightweight model components uploaded to the quality inspection and evaluation system with the inspection batch of the quality inspection and evaluation system. Through manual operation attachment, the corresponding model components are attached to the corresponding divided inspection batches to ensure that the model construction is completely attached in accordance with the inspection batch, which is convenient for measurement and pricing. The lightweight model uploaded to the quality inspection and evaluation management system is attached to the inspection batch of the quality acceptance management system; the site strictly follows the national quality standards, real-time supervision and acceptance of each process, and uploads the platform construction information and fills in pictures and texts to achieve "real people, real-time, and real-time". The inspection batch is closed after approval by the supervisor. The quality inspection and evaluation system and mobile APP are used to upload and fill in pictures and texts of on-site monitoring, construction, graphic reports, test reports and other information, and the information is automatically associated with the inspection batch.

[0061] The beneficial effects of the above technical solutions are: accurately construct each BIM model, deepen the design of drawings based on the BIM model, promote the BIM three-dimensional collaborative design of the whole life cycle of integrated survey, planning and design, and carry out site simulation, engineering quantity statistics, process simulation, visual disclosure and other work based on BIM technology, so as to provide a data foundation and technical guarantee based on the BIM model for subsequent construction management and operation. The BIM model is used to complete the original site model analysis, earthwork balance design, foundation treatment design, drainage design and slope design of the project to optimize the design scheme. The goal of achieving the application of BIM throughout the whole process and the whole life cycle and digital lean construction is achieved, based on the application of information models in the whole process of project construction, to improve the predictability and controllability of the construction management of this project, enhance the collaborative management ability of the project, assist in project cost control and project construction cycle control, and improve the construction efficiency and quality of the project. Construction management is carried out according to the BIM model, and measurement and pricing are carried out according to the model to achieve efficient management of airport projects.

[0062] In one embodiment, 1) the project BIM team formulates the BIM construction plan of the project according to the construction scope and engineering characteristics, key points and difficulties of the project and the relevant requirements of the project department, and after the preparation is completed, it is submitted to the project technical person in charge for review. 2) After the BIM implementation plan is reviewed and approved by the project technical person in charge, the project manager shall convene a BIM model construction deepening design seminar to determine the content of the deepening design work, the collaborative work process between disciplines, etc. 3) The BIM team establishes the BIM model of the sub-project according to the drawings, relevant specifications and atlas requirements. The BIM team first reviews the model internally, and then the BIM person in charge approves it and submits it to the project technical person in charge for final review. 4) Using the reviewed model and collision check software, various errors, omissions and collisions between different disciplines are checked, and an inspection report is compiled, design optimization suggestions are put forward, the boundary and collision problems with each discipline are eliminated, and the deepening drawings are exported. During the construction stage, the model is updated and maintained in a timely manner according to design changes, drawing optimization, etc. 5) After the results are submitted, the on-site construction team will be given a three-dimensional technical explanation using the detailed design model, detailed drawings, and process simulation videos, so as to assist and guide the on-site construction with the detailed design results. 6) At the completion stage, the completion model with information on the entire construction process will be submitted.

[0063] In one embodiment, the BIM model is used to deepen the design of complex nodes such as foundation treatment projects, earthwork projects, drainage projects, fire protection pipe network projects, pavement projects and perimeter projects. The model is used to predict the construction results in advance, and the construction organization is carried out reasonably, which avoids rework and ensures the construction period and quality.

[0064] According to some embodiments of the present invention, obtaining various professional processes in airport engineering and collecting corresponding data include:

[0065] A quality inspection and evaluation process tree is established based on the professional processes and construction data collection requirements in the airport project, and the design and construction reporting standards and quality inspection and evaluation reporting instructions are provided.

[0066] The beneficial effects of the above technical solution are: according to the requirements of each professional process and each construction data collection in the airport project, a quality inspection and evaluation process tree is established, and the design construction reporting standards and quality inspection and evaluation reporting instructions are designed. Ensure that data collection is carried out on site as required and upload data and image materials to the platform to ensure construction quality.

[0067] According to some embodiments of the present invention, determining standard information of a BIM model includes:

[0068] The component information table and BIM model are introduced to implement standard and specification management, providing standard support for BIM modeling plug-ins.

[0069] The beneficial effects of the above technical solution are: the introduction of component information table and BIM implementation standard specification management realizes the online collaborative compilation of airport BIM implementation standard specifications, and provides standard support for BIM modeling plug-ins. Heterogeneous model management realizes the unification of BIM models in different formats.

[0070] According to some embodiments of the present invention, adjusting the encoded model to obtain an adjusted model includes:

[0071] The model quantities of the encoded model are exported through the plug-in, and the list quantities, model quantities, drawing quantities and actual on-site quantities are reviewed, abnormal models are identified and adjusted to obtain the adjusted model.

[0072] According to some embodiments of the present invention, lightweight processing is performed on the adjustment model to obtain a lightweight model, including:

[0073] Lightweighting the adjustment model to retain the attribute information required by the model components; the attribute information includes geometric attributes, metrological attributes and industry attributes;

[0074] The lightweight model is debugged based on a specific software lightweight plug-in, and after debugging is correct, a lightweight model is obtained.

[0075] The beneficial effects of the above technical solution are: it is easy to realize model compression, facilitate the subsequent rapid uploading of the model, and improve the portability of model mounting.

[0076] According to some embodiments of the present invention, establishing an inspection lot in a quality inspection and evaluation system includes:

[0077] Establish corresponding inspection batches in different professional models as required, and add the required form information and construction process information.

[0078] According to some embodiments of the present invention, the lightweight model is linked to the inspection batch, and the metering and pricing management of the airport project is performed according to the linking result, including:

[0079] Receive input information determined by the user through filtering component coding information; the input information includes the list item code, list item name, list item characteristics, list measurement unit, output quantity attribute, conversion formula and output quantity method of the corresponding item;

[0080] Fill the input information into the quality inspection and evaluation system-bid section sub-library table to complete the metrological information step of the model inspection batch push;

[0081] The engineering cost module of the quality inspection and evaluation system receives the user's click information; the click information includes the cost code of a click on a single list item; based on the click information, the converted engineering quantity, output quantity attributes, unit price and comprehensive price of a single component of the corresponding project are queried, and an Excel spreadsheet is exported to verify the engineering quantity. After confirmation, the component is pushed for measurement and pricing, thus completing the model measurement and pricing work.

[0082] According to some embodiments of the present invention, each classified professional BIM model is encoded, including:

[0083] Determine the coded component library, which includes all components in the BIM model created for the airport project;

[0084] Before determining the code, the physical components are split and combined according to each professional BIM model division and application requirements, and a model classification table is established;

[0085] Based on the model classification table, each professional BIM model is encoded using an unnamed component encoding method or a named component encoding method.

[0086] The working principle and beneficial effects of the above technical solution: After the geometric model is created, additional non-geometric information such as component coding, engineering information, technical parameters, etc. should be added to the model to form a complete information model. For the construction of information models, especially for applications in the operation and maintenance management platform, it is necessary to establish a standardized and unified classification and coding system. Before determining the coding, the physical components are split and combined according to the division and application requirements of each professional BIM model, and a model classification table is established; the coding is used as an attribute parameter of the model component, so that the component unique coding (globally unique identifier, GUID) corresponds to the application coding, thereby meeting the requirements of consistent model and coding calls.

[0087] According to the specification requirements and the coding library format, two coding methods are adopted, batch coding and identification name coding. Batch coding is used for components without component names such as Microstation platform and OpenRoadsDesigner platform. The coding plug-in is determined, and the construction coding value and attributes are determined through the coding database and coding components. The component attribute value is filled in and the coding is completed.

[0088] For components created by the OpenBuildingDesigner platform, because they have a building component directory structure and a unique name, all of these methods use the method of identifying the structural component name for encoding. Both methods can achieve efficient and accurate encoding results. In terms of software development, the plug-in language uses C# language, and the method of developing applications through Addins. The component library contains all the components in the BIM model created by the airport. The coding plug-in combines the coding component library and the coding model to add coding data to the created BIM model components, while ensuring the uniqueness of the component coding. When automatically encoding, unnamed components: Here, according to the user's pre-selected components, select the target database component in the component list to perform encoding, and download the attribute ItemType at the same time. A dialog box pops up to fill in the attribute value, and all selected components will be automatically encoded and design attributes will be added. Click OK to automatically encode. Named component encoding: For software components with a directory structure, each placed component is uniquely corresponding in the directory structure of the current project file, so you can obtain the Catalog and component name of the project file, search in the coding component library, find the corresponding component to obtain its coding data, and thus achieve automatic component encoding.

[0089] In one embodiment, after all components are coded, the component list export function provided by the plug-in can realize the one-click export of all component lists for subsequent statistical engineering quantities and other related work. In view of the fact that in some cases, coding and GUID duplication may occur due to operational errors or component duplication, the plug-in also provides auxiliary functions such as code duplication check, GUID deduplication, and serial number sequence.

[0090] like Figure 2 As shown, according to some embodiments of the present invention, before classifying and categorizing each professional BIM model according to the contract list pricing rules, it also includes:

[0091] Conduct collision checks on each professional BIM model, detect collision points and make adjustments by performing boundary collisions and mold closing with other bidding sections;

[0092] Optimize each professional BIM model to obtain an optimized model.

[0093] The working principle and beneficial effects of the above technical solution: BIM technology is applied to check the collision of the model during the modeling process. Through boundary collision and mold closing with other bid sections, more than 380 collision points are detected in total. Through model adjustment, on-site construction is guided to avoid waste of manpower, materials and delays in construction period due to rework. Take the fire pipeline avoiding drainage ditch (fire pipeline and fire well avoiding communication pipeline) as an example: the underground pipeline and the fire model are collided in ProjectWise software, and it is found that the fire pipeline and drainage ditch (fire pipeline and fire well and communication pipeline) collide. After communication and confirmation with all parties, the fire pipeline is adjusted to avoid drainage ditch (communication pipeline) to achieve pipeline optimization. The model is adjusted by finding problems in advance to reduce rework and modification and reduce construction costs.

[0094] Using BIM technology, we simulated the routes of cofferdams, access roads, etc., guided the optimization of the scheme, and saved costs. We modeled the foundation treatment monitoring model and slope detection model through BIM technology, arranged the settlement monitoring points reasonably, and optimized the construction scheme. According to the original geological model provided by the survey institute, we optimized the design of cofferdams, access roads, etc. in Civil3D software. It played a role in assisting the design and drawing, reducing costs, and optimizing the design.

[0095] Through the BIM model, pipelines are optimized to make construction more convenient. This project greatly reduces the difficulty of construction, speeds up construction progress and reduces cross-operation by optimizing the routes of underground fire protection pipelines and avoiding buildings such as connection halls, road slab joints, and other obstacles on the road surface.

[0096] The construction process is simulated through the BIM model, and the BIM model is used to hold meetings to discuss the operability and rationality of the construction process. Based on the concept of improving construction quality and reducing construction costs, the construction process is optimized. The conventional fire-fighting pipes of the fire-fighting pipelines in this project use steel-framed polyethylene composite pipes, glass fiber reinforced plastic casings are used below the pavement, and steel tees are used. Based on the construction process simulation, the results of the BIM visualization model are discussed and analyzed, and the steel tees are optimized to steel-framed polyethylene tees, which not only improves the construction quality and ensures the airtightness of the pipelines, but also greatly reduces the cost.

[0097] In one embodiment, if Figure 4 As shown in the figure, the BIM modeling software is used to establish the steel bar model, and the corresponding steel bar engineering quantity table, steel bar cutting list, and steel bar model cutting diagram are exported. The steel bar production drawing can be directly exported to guide the back-end steel bar production. At the same time, the results after production and installation are displayed and explained, so that on-site management personnel and steel bar workers can understand clearly, which not only achieves quantity control but also meets quality requirements.

[0098] In one embodiment, by using roaming videos, two-dimensional section drawings, key nodes and complex nodes, and exporting steel bar cutting lists, on-site management personnel and labor team leaders can understand the various professional models, and the models of the complex nodes and key nodes involved and their two-dimensional section drawings are explained repeatedly, so that on-site management personnel and labor team leaders can carry out construction with a clear understanding of the finished product and internal details.

[0099] In one embodiment, three-dimensional laser scanning technology - BIM model - calculates and analyzes data such as reinforcement spacing, protective layer thickness, elevation, etc. through computer - to verify whether the construction site is consistent with the BIM model, whether the on-site construction is qualified, and to strengthen on-site quality control.

[0100] According to some embodiments of the present invention, the further comprising:

[0101] Collect engineering implementation data of various professional processes in current airport projects;

[0102] According to the project implementation data and the learning model created based on the preset project progress database, the construction progress of the current airport project is determined, and compared with the preset construction progress corresponding to the current period, and the comparison results are generated and transmitted to the user monitoring terminal;

[0103] According to the project implementation data and the learning model created based on the preset project progress database, the construction progress of the current airport project is determined, including:

[0104] The preset engineering progress database contains P different engineering implementation data under n evaluation indicators after being numerically quantified, forming a learning matrix A; the corresponding construction progress is marked after each data to obtain a vector T;

[0105] Normalize the data in the learning matrix A to obtain a normalized matrix;

[0106]

[0107] Among them, b' h is the normalized value of the hth evaluation index of the data in the learning matrix A; b h is the value of the hth evaluation index of a data in the learning matrix A; Ah is the set of all values ​​corresponding to the hth evaluation index of each data in the learning matrix A; e is a natural constant, h = 1, 2, 3...n; based on each normalized value, a normalized matrix B is obtained;

[0108] Based on the normalized matrix, the weight coefficient of each evaluation index is calculated;

[0109] |B-λE|=0

[0110] Where E is the unit matrix, λ is the weight coefficient to be solved, and λ is a set of n coefficients;

[0111] Based on the weight coefficient and vector T of each evaluation index, a learning model is constructed;

[0112] The values ​​of n evaluation indicators corresponding to the project implementation data are numerically processed and normalized to obtain a vector C;

[0113] Calculate the matching degree between vector C and each piece of data in the learning model;

[0114]

[0115] Among them, w h is the matching degree between vector C and the h-th data in the learning model; Ci is the i-th value in vector C; λi is the i-th value in the weight coefficient; B hi is the value of the hth row and ith column of the normalized matrix B, i = 1, 2, 3...n, h = 1, 2, 3...p;

[0116] Based on the value in the vector T corresponding to the data with the maximum matching degree, the construction progress of the current airport project is determined.

[0117] The working principle and beneficial effects of the above technical solution are as follows: the engineering implementation data of each professional process in the current airport project are collected; the construction progress of the current airport project is determined according to the engineering implementation data and the learning model created based on the preset engineering progress database, and compared with the preset construction progress corresponding to the current period, and the comparison results are generated and transmitted to the user monitoring terminal; it is convenient to accurately monitor the construction progress of the current airport project based on the user monitoring terminal. When determining the construction progress of the current airport project, a learning matrix A is formed, and the data in the learning matrix A is normalized to obtain a normalized matrix. Based on the normalized matrix, the weight coefficient of each evaluation index is calculated, and the learning model is constructed based on the weight coefficient of each evaluation index and the vector T; the values ​​of the n evaluation indicators corresponding to the engineering implementation data are numerically processed and normalized to obtain a vector C; the matching degree between the vector C and each data in the learning model is calculated; the construction progress of the current airport project is determined based on the value in the vector T corresponding to the data with the maximum matching degree. Improve the accuracy of determining the construction progress of the current airport project.

[0118] like Figure 3 As shown, in one embodiment, BIM technology is used for visualization, digital simulation, and node optimization to output two-dimensional and three-dimensional drawings to guide on-site construction, including: three-sided reinforcement cutting drawings of foundation beams, reinforcement cutting drawings of foundation beams, deepening cutting drawings of stairs, deepening cutting drawings of water collection wells, deepening cutting drawings of steel columns, etc., so as to achieve accurate model drawing, assist on-site construction, and improve construction quality.

[0119] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for airport engineering management based on BIM model, characterized in that: include: Obtain various professional processes in airport engineering and collect corresponding data; Determine standard information of BIM model; Establish professional BIM models based on the data and standard information corresponding to each professional process; Obtain lightweight models based on each professional BIM model and upload them to the quality inspection and evaluation system; Establish inspection lots in the quality inspection and evaluation system; Link the lightweight model with the inspection batch and manage the measurement and pricing of the airport project based on the linking results; The lightweight model is obtained based on each professional BIM model and uploaded to the quality inspection and evaluation system, including: Classify and categorize professional BIM models according to the contract list pricing rules, divide the professional BIM models of the same category into unified layers by establishing layers, and encode each classified professional BIM model; Adjust the encoded model to obtain an adjusted model; The adjustment model is reviewed. After passing the review, the adjustment model is lightweighted to obtain a lightweight model and upload it to the quality inspection and evaluation system; Link the lightweight model with the inspection batch and manage the measurement and pricing of the airport project based on the linking results, including: Receive input information determined by the user through filtering component coding information; the input information includes the list item code, list item name, list item characteristics, list measurement unit, output quantity attribute, conversion formula and output quantity method of the corresponding item; Fill the input information into the quality inspection and evaluation system-bid section sub-library table to complete the metrological information step of the model inspection batch push; The engineering cost module of the quality inspection and evaluation system receives the user's click information; the click information includes the cost code of a single list item; based on the click information, the converted engineering quantity, output quantity attributes, unit price and comprehensive price of a single component of the corresponding project are queried, and an Excel table is exported to check the engineering quantity. After confirmation, the component is pushed for measurement and pricing, and the model measurement and pricing work is completed; Each professional BIM model after classification is coded, including: Determine the coded component library, which includes all components in the BIM model created for the airport project; Before determining the code, the physical components are split and combined according to each professional BIM model division and application requirements, and a model classification table is established; Based on the model classification table, each professional BIM model is encoded by an unnamed component encoding method or a named component encoding method; Before classifying and categorizing the professional BIM models according to the contract list pricing rules, it also includes: Conduct collision checks on each professional BIM model, detect collision points and make adjustments by performing boundary collisions and mold closing with other bidding sections; Optimize each professional BIM model to obtain an optimized model.

2. The airport engineering management method based on the BIM model as claimed in claim 1, characterized in that: Obtain various professional processes in airport engineering and collect corresponding data, including: A quality inspection and evaluation process tree is established based on the professional processes and construction data collection requirements in the airport project, and the design and construction reporting standards and quality inspection and evaluation reporting instructions are provided.

3. The airport engineering management method based on the BIM model as claimed in claim 1, characterized in that: Determine the standard information of the BIM model, including: The component information table and BIM model are introduced to implement standard and specification management, providing standard support for BIM modeling plug-ins.

4. The airport engineering management method based on the BIM model as claimed in claim 1, characterized in that: The encoded model is adjusted to obtain an adjusted model, including: The model quantities of the encoded model are exported through the plug-in, and the list quantities, model quantities, drawing quantities and actual on-site quantities are reviewed, abnormal models are identified and adjusted to obtain the adjusted model.

5. The airport engineering management method based on the BIM model as claimed in claim 1, characterized in that: The adjusted model is lightweighted to obtain a lightweight model, including: Lightweighting the adjustment model to retain the attribute information required by the model components; the attribute information includes geometric attributes, metrological attributes and industry attributes; The lightweight model is debugged based on a specific software lightweight plug-in, and after debugging is correct, a lightweight model is obtained.

6. The airport engineering management method based on the BIM model according to claim 1 is characterized in that: Establish inspection lots in the quality inspection and evaluation system, including: Establish corresponding inspection batches in different professional models as required, and add the required form information and construction process information.

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