Foundation pit simulation analysis detection method and system by using BIM (Building Information Modeling)

Abstract

The invention provides a method and a system for carrying out foundation pit simulation analysis detection by utilizing BIM (Building Information Modeling). The method comprises the following steps: carrying out model integration, collision detection and earth excavation simulation, and carrying out model optimization and model processing based on a collision detection result and an earth excavation simulation result; carrying out modification adjustment and construction simulation on the foundation pit combined model; and obtaining foundation pit monitoring data, importing the foundation pit monitoring data into the foundation pit simulation model to be associated with the foundation pit deformation-based model, obtaining deformation models and deformation nephograms of the foundation pit in different time periods, and determining whether a foundation pit pre-deformation value meets a preset deformation requirement or not based on the deformation models and the deformation nephograms. According to the method, a BIM technology is utilized to establish a refined construction management cooperation method based on a foundation pit and support design model, refined management of the whole construction process is comprehensively displayed in a 3D visualization mode, the working efficiency is improved, the construction cost is reduced, relevant data are imported, whether the data are reasonable or not is checked, and reasonable adjustment is made according to the construction progress.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit construction, and in particular to a method and system for performing foundation pit simulation analysis and detection using BIM. Background Art

[0002] For a country with such a vast territory, climate, geological conditions, and socioeconomic status vary significantly from region to region, resulting in distinct characteristics and current status of foundation pit engineering. Northern regions experience cold winters, necessitating antifreeze measures during foundation pit construction; southern regions experience higher groundwater levels, requiring careful attention to drainage and flooding during construction. Furthermore, the eastern coastal regions boast a developed economy, resulting in larger-scale foundation pit construction, but land resources are scarce, placing higher demands on excavation and support techniques. With advancements in science and technology and the accumulation of engineering experience, foundation pit engineering technology has continuously evolved and developed. Early foundation pit projects primarily employed traditional support structures such as wooden piles and steel sheet piles, while today, more advanced support structures such as reinforced concrete piles, underground diaphragm walls, and soil nail walls are increasingly being used. Furthermore, to improve the quality and safety of foundation pit construction, relevant technologies such as construction monitoring, numerical simulation, and information-based construction have also been widely adopted.

[0003] The application of new technologies and processes has also played a significant role in the development of foundation pit engineering. For example, the emergence of technologies such as information-based construction, reverse construction, semi-reverse construction, and anchor support have significantly improved the efficiency and safety of foundation pit construction. Furthermore, the design and application of new support structures, such as prestressed anchor cables and micropiles, have greatly enriched the construction methods of foundation pit engineering. With the advancement of science and technology and the acceleration of urbanization, foundation pit engineering will continue to play a vital role. The continuous emergence of new technologies and processes will further enhance the efficiency and safety of foundation pit construction. However, it is also necessary to identify existing problems and challenges and strengthen research and innovation in technology and management to promote the sustainable development of foundation pit engineering. The complex and ever-changing urban environment has placed higher demands on foundation pit construction. Green construction and energy conservation and emission reduction have become important development directions in the field of foundation pit engineering. For example, the introduction of new support structures and energy recovery technologies can achieve a low-carbon and environmentally friendly construction process. Secondly, information-based construction and intelligent technologies are gaining widespread application. Use technologies such as the Internet of Things and big data to conduct real-time monitoring, data analysis and optimization of construction sites to improve construction efficiency and quality. Foundation pit engineering involves many disciplines and requires more comprehensive technical support and management capabilities.

[0004] However, current foundation pit construction requires follow-up work according to a design plan, making it cumbersome and inconvenient. Inexperienced workers can also cause numerous problems. BIM technology, by combining its visualization capabilities with worker briefings, can clearly and intuitively demonstrate the entire waterproofing construction process. Consequently, it is being developed and applied in a variety of ways, each with its own advantages and disadvantages. Summary of the Invention

[0005] In view of this, the present invention proposes a method and system for foundation pit simulation analysis and detection using BIM, aiming to solve the problem of complicated and inconvenient construction caused by existing design schemes for foundation pit construction.

[0006] The present invention proposes a method for foundation pit simulation analysis and detection using BIM. The method includes the following steps: a model processing step, in which a three-dimensional geological model, a site model, a foundation pit and a foundation pit support system model are generated based on BIM, and model integration, collision detection and earth excavation simulation are performed. Based on the collision detection results and the earth excavation simulation results, model optimization and model processing are performed to obtain a foundation pit combination model, so as to excavate a physical foundation pit based on the foundation pit combination model; a construction simulation step, in which the foundation pit combination model is modified and adjusted and a construction simulation is performed. If the preset simulation requirements are not met, the model is modified and adjusted until the preset simulation requirements are met, so as to obtain a foundation pit simulation model, so as to construct the physical foundation pit based on the foundation pit simulation model; a model monitoring step, in which foundation pit monitoring data is obtained, imported into the foundation pit simulation model, and associated with the foundation pit deformation model, so as to obtain deformation models and deformation cloud maps of the foundation pit at different time periods, and based on the data, whether the foundation pit pre-deformation value meets the preset deformation requirements is determined. When the preset deformation requirements are not met, the foundation pit simulation model is processed and adjusted until the preset deformation requirements are met, so as to obtain a foundation pit monitoring model, so as to process and adjust the physical foundation pit based on the foundation pit monitoring model.

[0007] Furthermore, the above-mentioned foundation pit simulation analysis and detection method using BIM, the model processing step includes the following sub-steps: a geological creation sub-step, creating a three-dimensional geological model; a site layout sub-step, using REVIT software to layout the site environment model; a foundation pit establishment sub-step, using REVIT software to establish the foundation pit and the foundation pit support system; an integration sub-step, using RENIT software to integrate the three-dimensional geological model, the site environment model, the foundation pit and the foundation pit support system to obtain a foundation pit combination model; a collision sub-step, using Navisworks to import the integrated foundation pit combination model for collision detection, and based on the collision test results, checking whether there is a model conflict in the foundation pit combination model, if there is a collision, If there is a model conflict, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection result, and a collision detection model is obtained; in the excavation simulation sub-step, the earth excavation of the collision detection model is simulated using a three-dimensional animation effect; in the excavation statistics sub-step, the engineering volume of the collision detection model is counted and output; in the deformation monitoring sub-step, the settlement deformation data of the entity foundation pit is associated with the collision detection model, and the settlement deformation simulation data of the collision detection model is monitored in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the entity foundation pit based on the processing of the collision detection model.

[0008] Furthermore, in the above-mentioned method for foundation pit simulation analysis and detection using BIM, the construction simulation step includes the following sub-steps: a model adjustment sub-step, which modifies and adjusts the three-dimensional geology and site in the foundation pit combination model; a collision adjustment sub-step, which performs secondary collision detection on the modified and adjusted model, and checks whether there is a model conflict in the modified and adjusted model based on the collision test result. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection result, thereby obtaining a secondary detection model; a construction simulation sub-step, which performs construction simulation on the secondary detection model, and if it does not meet the preset simulation requirements, it is modified and adjusted until the preset simulation requirements are met, thereby obtaining a foundation pit simulation model; a quantity statistics sub-step, which performs quantity statistics and outputs the foundation pit simulation model; a drawing output sub-step, which outputs a simulation video during the simulation process as well as drawings and models of the foundation pit simulation model.

[0009] Furthermore, in the above-mentioned method for foundation pit simulation analysis and detection using BIM, the model monitoring step includes the following sub-steps: a data acquisition sub-step, acquiring the deformation data of the physical foundation pit to obtain the foundation pit monitoring data; a data association sub-step, importing the acquired foundation pit monitoring data into the foundation pit simulation model, and associating it with the corresponding parts and measuring points in the foundation pit simulation model to display the foundation pit monitoring data; a data integration sub-step, combining the acquired foundation pit monitoring data with the foundation pit simulation model to establish a deformation model and deformation cloud map of the foundation pit at different time periods to display the deformation trend of the model and obtain a deformation curve; a data prediction sub-step, performing foundation pit analysis based on the model deformation trend and deformation curve to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, adjusting the foundation pit simulation model until the preset settlement deformation value is met, so as to adjust the physical foundation pit based on the foundation pit simulation model.

[0010] Furthermore, in the above-mentioned method for foundation pit simulation analysis and detection using BIM, in the data acquisition sub-step, 3D scanning, drones, and intelligent total stations are used to obtain foundation pit monitoring data.

[0011] On the other hand, the present invention also proposes a foundation pit simulation analysis and detection system using BIM, which includes: a model processing module, which is used to perform three-dimensional geological model, site model, foundation pit and foundation pit support system model based on BIM, and perform model integration, collision detection and earth excavation simulation, and optimize and process the model based on the collision detection results and the earth excavation simulation results to obtain a foundation pit combination model, so as to excavate the physical foundation pit based on the foundation pit combination model; a construction simulation module, which is used to modify and adjust the foundation pit combination model and perform construction simulation, and if it does not meet the preset simulation requirements, modify and adjust it until the preset simulation requirements are met, so as to obtain a foundation pit simulation model, so as to construct the physical foundation pit based on the foundation pit simulation model; a model monitoring module, which is used to obtain foundation pit monitoring data, import it into the foundation pit simulation model and associate it with the foundation pit deformation model, obtain the deformation model and deformation cloud map of the foundation pit at different time periods, and determine whether the foundation pit pre-deformation value meets the preset deformation requirements based on this, and when it does not meet the preset deformation requirements, process and adjust the foundation pit simulation model until the preset deformation requirements are met, so as to obtain a foundation pit monitoring model, so as to process and adjust the physical foundation pit based on the foundation pit monitoring model.

[0012] Furthermore, the above-mentioned foundation pit simulation analysis and detection system using BIM, the model processing module includes: a geological creation submodule for creating a three-dimensional geological model; a site layout submodule for arranging a site environment model using REVIT software; a foundation pit establishment submodule for establishing a foundation pit and a foundation pit support system using REVIT software; an integration submodule for integrating the three-dimensional geological model, the site environment model, the foundation pit and the foundation pit support system through RENIT software to obtain a foundation pit combination model; a collision submodule for using Navisworks to import the integrated foundation pit combination model for collision detection, and based on the collision test results, checking whether there is a model conflict in the foundation pit combination model, and if there is a model conflict, If there is a model conflict, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection result, so as to obtain a collision detection model; an excavation simulation submodule is used to simulate earth excavation for the collision detection model using a three-dimensional animation effect; an excavation statistics submodule is used to count the engineering quantity of the collision detection model and output it; a deformation monitoring submodule is used to associate the settlement deformation data of the entity foundation pit with the collision detection model, and monitor the settlement deformation simulation data of the collision detection model in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the entity foundation pit based on the processing of the collision detection model.

[0013] Furthermore, the above-mentioned foundation pit simulation analysis and detection system using BIM, the construction simulation module includes: a model adjustment submodule, which is used to modify and adjust the three-dimensional geology and site in the foundation pit combination model; an adjustment collision submodule, which is used to perform secondary collision detection on the modified and adjusted model, and check whether there is a model conflict in the modified and adjusted model according to the collision test result. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection result, and a secondary detection model is obtained; a construction simulation submodule, which is used to perform construction simulation on the secondary detection model, and if it does not meet the preset simulation requirements, it is modified and adjusted until the preset simulation requirements are met to obtain a foundation pit simulation model; an engineering quantity statistics submodule, which is used to perform engineering quantity statistics and output the foundation pit simulation model; a drawing output submodule, which is used to output simulation videos during the simulation process and drawings and models of the foundation pit simulation model.

[0014] Furthermore, the above-mentioned foundation pit simulation analysis and detection system using BIM, the model monitoring module includes: a data acquisition submodule, which is used to use 3D scanning, drones, and intelligent total stations to obtain physical foundation pit deformation data to obtain foundation pit monitoring data; a data association submodule, which is used to import the acquired foundation pit monitoring data into the foundation pit simulation model, and associate it with the corresponding parts and measuring points in the foundation pit simulation model to display the foundation pit monitoring data; a data integration submodule, which is used to combine the acquired foundation pit monitoring data with the foundation pit simulation model to establish deformation models and deformation cloud maps of the foundation pit at different time periods to display the deformation trend of the model and obtain a deformation curve; a data prediction submodule, which is used to analyze the foundation pit based on the model deformation trend and deformation curve to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, so as to adjust the physical foundation pit based on the foundation pit simulation model.

[0015] Furthermore, in the above-mentioned foundation pit simulation analysis and detection system using BIM, in the data acquisition submodule, 3D scanning, drones, and intelligent total stations are used to obtain foundation pit monitoring data.

[0016] The present invention provides a foundation pit simulation analysis and detection method and system using BIM. The method uses BIM to perform foundation pit simulation analysis and detection. Through foundation pit modeling, collision detection and earthwork excavation simulation, the foundation pit model is optimized and processed to obtain a foundation pit combination model. The model is modified and adjusted based on the simulation structure through actual modification and adjustment of the foundation pit combination model and construction simulation to meet the preset simulation requirements and obtain a foundation pit simulation model. By combining the foundation pit simulation model with foundation pit monitoring data, deformation models and deformation cloud maps at different time periods are obtained to ensure whether the foundation pit pre-deformation value meets the preset deformation requirements, and adjustments are made until the preset deformation requirements are met to obtain a foundation pit monitoring model. BIM technology is used to establish a refined construction management collaborative method based on the foundation pit and support design model. The refined management of the entire construction process is fully displayed through 3D visualization, thereby improving work efficiency and reducing construction costs. At the same time, the method is based on the BIM model and the 3D model as the basis. It combines software such as Zebra, Menglong, and Peoject to draw a progress schedule for the entire foundation pit project process, import relevant data and verify whether it is reasonable, and make reasonable adjustments to the construction progress. After the construction simulation of the established BIM model is completed and meets the requirements, the required engineering quantities can be counted and compared with the construction schedule, optimizing material control. The model can also track material usage and output corresponding material and equipment demand information for comparison, dynamically allocating various construction resources and equipment, reducing waste, improving procurement efficiency, and achieving effective control of materials and equipment during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings: Figure 1 A flowchart of a foundation pit simulation analysis and detection method using BIM provided in an embodiment of the present invention; Figure 2 A flowchart of the model processing steps provided in an embodiment of the present invention; Figure 3 A process flow chart of the model processing steps provided in an embodiment of the present invention; Figure 4 A flowchart of the construction simulation steps provided by an embodiment of the present invention; Figure 5 A process flow chart of the construction simulation steps provided by an embodiment of the present invention; Figure 6 A flowchart of the model monitoring steps provided in an embodiment of the present invention; Figure 7 A process flow chart of the model monitoring steps provided in an embodiment of the present invention; Figure 8 A structural block diagram of a foundation pit simulation analysis and detection system using BIM provided in an embodiment of the present invention; Figure 9 A structural block diagram of a model processing module provided in an embodiment of the present invention; Figure 10 A structural block diagram of a construction simulation module provided by an embodiment of the present invention; Figure 11 This is a structural block diagram of the model monitoring module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Below, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein.

[0019] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0020] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present invention are only used to distinguish different steps, devices or modules, and neither represent any specific technical meaning nor indicate the necessary logical order between them.

[0021] It should also be understood that, in the embodiments of the present invention, “a plurality of” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0022] It should also be understood that any component, data or structure mentioned in the embodiments of the present invention can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0023] In addition, the term "and / or" in this invention merely describes an association relationship between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this invention generally indicates that the related objects are in an "or" relationship.

[0024] It should also be understood that the description of the various embodiments of the present invention focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced with each other. For the sake of brevity, they will not be described one by one.

[0025] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] Embodiments of the present invention can be applied to electronic devices such as terminal devices, computer systems, and servers, and can operate in conjunction with numerous other general-purpose or specialized computing system environments or configurations. Examples of well-known terminal devices, computing systems, environments, and / or configurations suitable for use with terminal devices, computer systems, servers, and other electronic devices include, but are not limited to, personal computer systems, server computer systems, thin clients, thick clients, handheld or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, minicomputer systems, mainframe computer systems, and distributed cloud computing technology environments including any of the above.

[0030] Electronic devices such as terminal devices, computer systems, and servers can be described in the general context of computer system-executable instructions (such as program modules) executed by a computer system. Generally, program modules can include routines, programs, object programs, components, logic, data structures, etc., which perform specific tasks or implement specific abstract data types. Computer systems / servers can be implemented in a distributed cloud computing environment, where tasks are performed by remote processing devices linked via a communication network. In a distributed cloud computing environment, program modules can be located on local or remote computing system storage media, including storage devices.

[0031] Method Example: See also Figure 1 , which is a flowchart of a foundation pit simulation analysis and detection method using BIM provided by an embodiment of the present invention. As shown in the figure, the method includes the following steps: Model processing step S1, based on BIM, three-dimensional geological model, site model, foundation pit and foundation pit support system model are carried out, and model integration, collision detection and earth excavation simulation are carried out. Based on the collision detection results and earth excavation simulation results, model optimization and model processing are carried out to obtain a foundation pit combination model, so as to excavate the physical foundation pit based on the foundation pit combination model.

[0032] Specifically, based on geological survey reports, design documents, etc., BIM is used to create and integrate three-dimensional geological models, site models, foundation pits and foundation pit support system models, and collision detection is performed on the integrated models. Earth excavation simulation is performed on models that pass the detection, and the qualified simulation models are used as foundation pit combination models. The physical foundation pit is processed based on the foundation pit combination model.

[0033] In the construction simulation step S2, the foundation pit combination model is modified and adjusted and the construction simulation is performed. If it does not meet the preset simulation requirements, it is modified and adjusted until the preset simulation requirements are met, and a foundation pit simulation model is obtained to construct the physical foundation pit based on the foundation pit simulation model.

[0034] Specifically, according to national, local and industry standards and specifications as well as the engineering construction plan, import the BIM model modified after the in-depth design, that is, the foundation pit combination model, and rearrange the site environment; 18 check whether the collision detection of the model meets the requirements. If there is a problem, re-establish the modified model for inspection. If there is no problem, output the result; use the BIM construction model that has been modified to meet the requirements for construction simulation; if the simulation does not meet the requirements, modify the construction plan based on the simulation results; refer to the optimization suggestions generated after the simulation to optimize the plan and re-construct the simulation. After meeting the requirements, obtain the output result of the foundation pit simulation model; 23 count the engineering quantities of the optimized model and obtain the engineering quantity form; and output CAD drawings, improved BIM models, sequence pictures, and simulation videos.

[0035] Model monitoring step S3, obtains foundation pit monitoring data, imports it into the foundation pit simulation model and associates it with the foundation pit deformation model, obtains the deformation model and deformation cloud map of the foundation pit at different time periods, and based on this, determines whether the foundation pit pre-deformation value meets the preset deformation requirements. When the preset deformation requirements are not met, the foundation pit simulation model is processed and adjusted until the preset deformation requirements are met, and the foundation pit monitoring model is obtained, so as to process and adjust the physical foundation pit based on the foundation pit monitoring model.

[0036] Specifically, the established and improved foundation pit deformation model, namely the foundation pit simulation model, is imported; 3D scanning, drones, and intelligent total stations are used to obtain physical foundation pit data, namely the foundation pit monitoring data; the acquired foundation pit monitoring data is transmitted in real time using the Internet of Things, 5G and other technologies and imported into the established BIM model, namely the foundation pit simulation model, and associated with the corresponding parts and measuring points of the foundation pit, so that the foundation pit data can be displayed in real time; using BIM4D technology, the deformation model and deformation cloud map of the foundation pit at different time periods are automatically established to intuitively display its deformation status and trend, and intelligently predict possible deformation curves; model processing is performed based on the detection and analysis results.

[0037] See also Figure 2 and Figure 3 , which shows the preferred flow of the model processing step provided by the embodiment of the present invention. As shown in the figure, the model processing step S1 includes the following sub-steps: In the geological creation sub-step S11, a 3D geological model is created. Specifically, the 3D geological model is created based on geological survey reports, design documents, etc. using platforms such as REVIT and Glodon BIM series.

[0038] In the site layout sub-step S12, the site environment model is arranged using the REVIT software. Specifically, the site environment model is arranged using the REVIT software based on the geological survey report, design documents, etc.

[0039] In the foundation pit establishment sub-step S13, the foundation pit and the foundation pit support system are established using REVIT software. Specifically, based on the geological survey report and design documents, the foundation pit and the foundation pit support system (including support type, structural dimensions, material, etc.) are established using REVIT software.

[0040] In the integration sub-step S14, the three-dimensional geological model, the site environment model, the foundation pit and the foundation pit support system are integrated using the RENIT software to obtain a foundation pit composite model. Specifically, the various models are integrated using the RENIT software.

[0041] In the collision sub-step S15, Navisworks is used to import the integrated foundation pit combination model for collision detection. Based on the collision detection results, the foundation pit combination model is checked to see if there is any model conflict. If there is a model conflict, the model is optimized and modified, and the model is remodeled and modified until the collision detection results show that there is no conflict, thereby obtaining a collision detection model.

[0042] Specifically, Navisworks is used to import the integrated model for professional collision detection and export the collision report. Based on the collision report, the model is checked and verified to see if it is correct, that is, if there is a conflict. If there is a problem, that is, if there is a conflict, then under the premise of meeting the construction requirements, that is, the foundation and base design specifications, optimization, modification, and re-modeling and modification are carried out. If there is no problem, the results are output and the model is used as the collision detection model.

[0043] In the excavation simulation sub-step S16, a three-dimensional animation effect is used to simulate earth excavation on the collision detection model. Specifically, the three-dimensional animation effect is used to simulate earth excavation.

[0044] In the excavation statistics sub-step S17, the collision detection model's engineering quantities are counted and output. Specifically, the model's engineering quantity output includes the earthwork excavation quantity (i.e., the amount of excavated earth) and the foundation pit support quantity. The foundation pit support quantity includes cement weight, concrete volume, and steel bar weight. Foundation pit support includes rotary bored cast-in-place piles, triaxial mixing piles, and AB twisted piles.

[0045] The deformation monitoring sub-step S18 associates the settlement deformation data of the physical foundation pit with the collision detection model, and monitors the settlement deformation simulation data of the collision detection model in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the physical foundation pit based on the processing of the collision detection model.

[0046] Specifically, a foundation pit deformation model is established, and the foundation pit is monitored in real time through the Internet of Things, that is, physical foundation pit monitoring, especially settlement deformation monitoring, is performed to obtain settlement deformation data. Based on the settlement deformation data, monitoring data and deformation cloud maps are generated through monitoring, that is, settlement deformation simulation is performed on the model. The foundation pit model is processed according to the foundation pit monitoring results until the settlement deformation simulation data meets the preset settlement deformation value, that is, the model after settlement deformation simulation is adjusted and processed; and the physical foundation pit is processed accordingly based on the model processing method. The preset settlement deformation value can be determined by foundation and foundation design specifications, for example, it can be 5 mm, or other values, and is not limited in this embodiment.

[0047] See also Figure 4 and Figure 5, which shows a preferred flow chart of the construction simulation step provided by an embodiment of the present invention. As shown in the figure, the construction simulation step S2 includes the following sub-steps: Model adjustment sub-step S21 modifies and adjusts the 3D geology and site conditions within the foundation pit composite model. Specifically, based on national, local, and industry standards and the project construction plan, the foundation pit composite model, modified after detailed design, is imported and the site environment and geology are rearranged within the foundation pit composite model. The 3D geology and site conditions within the foundation pit composite model can be modified and adjusted.

[0048] In the collision adjustment sub-step S22, a secondary collision detection is performed on the modified and adjusted model. Based on the collision detection results, the modified and adjusted model is checked to see if there is a model conflict. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection results, and a secondary detection model is obtained.

[0049] Specifically, the model can first be checked to see if it meets the requirements. If there are any problems, a new modified model is rebuilt and checked. If there are no problems, the results are output. That is, a secondary collision test is performed on the modified and adjusted model. Based on the collision test results, the modified and adjusted model is checked for model conflicts. If model conflicts occur, the model is optimized and modified, and the model is rebuilt and modified until the collision test results show no conflicts, thus obtaining a secondary test model.

[0050] In the construction simulation sub-step S23, the secondary detection model is subjected to construction simulation. If it does not meet the preset simulation requirements, the model is modified and adjusted until the preset simulation requirements are met, thereby obtaining a foundation pit simulation model.

[0051] Specifically, a construction simulation is performed on the secondary inspection model to determine whether the simulation results meet the preset simulation requirements. If they do not, modifications are made to identify deficiencies and modify the construction plan. The plan is optimized based on the optimization suggestions generated after the simulation, and the construction simulation is re-run until the preset simulation requirements are met. The model that meets the preset simulation requirements is used as the foundation pit simulation model, and the simulation results can be output. The construction simulation includes the creation of the foundation pit foundation and the detection of any anomalies in the model.

[0052] In the engineering quantity statistics sub-step S24, engineering quantity statistics are performed and output for the foundation pit simulation model. Specifically, the engineering quantity statistics and output are performed for the foundation pit simulation model to obtain an engineering quantity form. The engineering quantity includes the engineering quantity of earthwork excavation (i.e., the amount of excavation) and the engineering quantity of foundation pit support. The engineering quantity of foundation pit support includes cement weight, concrete volume, and steel bar weight. Foundation pit support includes rotary bored cast-in-place piles, triaxial mixing piles, and AB twisted piles.

[0053] The drawing output sub-step S25 outputs the simulation video during the simulation process and the drawings and models of the foundation pit simulation model. Specifically, CAD drawings, improved BIM models, sequence pictures, and simulation videos can also be output.

[0054] See also Figure 6 and Figure 7 , which shows the preferred process of the model monitoring step provided by the embodiment of the present invention. As shown in the figure, the model monitoring step S3 includes the following sub-steps: In the data acquisition sub-step S31, deformation data of the physical foundation pit is acquired to obtain foundation pit monitoring data. Specifically, 3D scanning, drones, or intelligent total stations are used to acquire deformation data of the physical foundation pit to obtain foundation pit monitoring data.

[0055] In the data association sub-step S32, the acquired foundation pit monitoring data is imported into the foundation pit simulation model and associated with the corresponding parts and measurement points in the foundation pit simulation model to display the foundation pit monitoring data. Specifically, the established and improved foundation pit simulation model is imported; then, the acquired foundation pit monitoring data is transmitted in real time using technologies such as the Internet of Things and 5G and imported into the established BIM model, i.e., the foundation pit simulation model. The data is then associated with the corresponding parts and measurement points of the foundation pit, i.e., the foundation pit simulation model, to display the foundation pit data in real time.

[0056] In the data integration sub-step S33, the acquired foundation pit monitoring data is combined with the foundation pit simulation model to create deformation models and deformation cloud maps for different periods of time. This model demonstrates the deformation trend and generates deformation curves. Specifically, using BIM4D technology, the deformation models and deformation cloud maps for different periods of time are automatically created to intuitively display the deformation status and trends, and intelligently predict the possible deformation curves.

[0057] In the data prediction sub-step S34, based on the model deformation trend and deformation curve, a foundation pit analysis is performed to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, and the physical foundation pit is processed and adjusted based on the foundation pit simulation model. Specifically, a deformation analysis is performed, and model processing and adjustment are performed based on the detection and analysis results to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, and the physical foundation pit is processed and adjusted based on the foundation pit simulation model.

[0058] This approach leverages BIM technology to refine and adjust the design model based on construction processes and site management requirements, creating a construction BIM model that seamlessly integrates the BIM model between the design and construction phases. Leveraging BIM's visualization, simulation, and coordination capabilities, the construction model is linked to actual construction data, enabling comprehensive collision checking, analysis, and simulation across various disciplines, including architecture, structure, and electromechanical equipment. IoT technology automatically collects information about the actual construction site progress, enabling a virtual comparison with the project's planned schedule. Mobile devices instantly capture images and videos and automatically upload them to the BIM construction site management platform. Responsible personnel receive instant notifications and responses to corrective actions on their mobile devices, achieving closed-loop management with online allocation of quality management tasks and timely tracking of progress. BIM technology enables visual identification, location, and query analysis of hazardous sources. Areas requiring safety precautions and warnings, such as safety fences, signage, and barrier nets, are marked in the model to remind on-site construction personnel of safe construction practices.

[0059] This method uses the BIM information platform to achieve information management of the entire foundation pit construction process. The pre-construction project is further designed and adjusted based on the design model through BIM technology, combined with construction technology and on-site management requirements, to form a construction BIM model. This allows for seamless integration of BIM models between the design and construction stages, and leverages mobile Internet technology to achieve collaborative management of construction sites through visualization and virtualization. The association of the construction model with actual data during the construction stage enables construction personnel to intuitively understand various information and simulate various complex situations. In terms of in-depth design, based on the BIM model combined with construction operation specifications and construction technology, comprehensive collision inspections of architecture, structure, electromechanical equipment and other disciplines are carried out to solve collision problems of various disciplines, complete construction optimization design, improve the construction model, and enhance the rationality, accuracy and verifiability of various construction disciplines; in terms of site layout management, the site terrain, existing facilities, surrounding environment, construction area, temporary roads and facilities, processing area, material yard, temporary water and electricity, construction machinery, safe and civilized construction facilities, etc. at each construction stage are planned, arranged and analyzed and optimized to achieve scientific and reasonable site layout; in terms of construction team management, through the BIM model, combined with construction procedures, processes and other requirements, a visual simulation of the construction process is carried out, and the plan is analyzed and optimized to improve the accuracy of the plan review and realize the visual communication of the construction plan. In terms of progress management, by dynamically linking the planned progress model (progress models generated by relevant software such as Project and Zebra Progress) with the actual progress model, the planned progress and actual progress can be compared, differences can be identified, and the reasons can be analyzed. BIM4D progress management can intuitively display the differences, optimize the construction sequence and resource allocation, and achieve virtual control and optimization of the project progress. In terms of material management, the required materials can be calculated based on the construction BIM model, and the model can be used to track material usage and output the corresponding material and equipment demand information for comparison. Various construction resources and equipment can be dynamically allocated to reduce waste, improve procurement efficiency, and achieve effective control of materials and equipment during the construction process. In terms of quality and safety management, the construction BIM model can be used to simulate the key control points of project quality and safety and optimize the plan. Mobile devices can be used to inspect and accept the quality and safety of on-site projects to achieve dynamic tracking and recording of quality and safety management.

[0060] In summary, the present embodiment provides a method for foundation pit simulation analysis and detection using BIM. Through foundation pit modeling, collision detection, and earthwork excavation simulation, the foundation pit model is optimized and processed to obtain a foundation pit composite model. The foundation pit composite model is modified and adjusted based on the simulation structure through actual modification and adjustment and construction simulation to meet the preset simulation requirements, thereby obtaining a foundation pit simulation model. By combining the foundation pit simulation model with the foundation pit monitoring data, deformation models and deformation cloud maps at different time periods are obtained to ensure whether the foundation pit pre-deformation value meets the preset deformation requirements, and adjustments are made until the preset deformation requirements are met to obtain a foundation pit monitoring model. BIM technology is used to establish a refined construction management collaborative method based on the foundation pit and support design model. The refined management of the entire construction process is fully displayed through 3D visualization, thereby improving work efficiency and reducing construction costs. At the same time, the method is based on the BIM model and the 3D model, and combines software such as Zebra, Menglong, and Peoject to draw a schedule for the entire foundation pit project process. The relevant data is imported and verified to be reasonable, and reasonable adjustments are made to the construction progress. After the construction simulation of the established BIM model is completed and meets the requirements, the required engineering quantities can be counted and compared with the construction schedule, optimizing material control. The model can also track material usage and output corresponding material and equipment demand information for comparison, dynamically allocating various construction resources and equipment, reducing waste, improving procurement efficiency, and achieving effective control of materials and equipment during the construction process.

[0061] System Example: See also Figure 8 , which is a structural block diagram of a foundation pit simulation analysis and detection system using BIM provided by an embodiment of the present invention. As shown in the figure, the system includes: a model processing module 100, a construction simulation module 200 and a model monitoring module 300; wherein, the model processing module 100 is used to carry out a three-dimensional geological model, a site model, a foundation pit and a foundation pit support system model based on BIM, and to perform model integration, collision detection and earthwork excavation simulation, and to optimize and process the model based on the collision detection results and the earthwork excavation simulation results to obtain a foundation pit combination model, so as to excavate a physical foundation pit based on the foundation pit combination model; the construction simulation module 200 is used to modify and adjust the foundation pit combination model and perform construction simulation, and if the preset model is not met, The simulation requirements are modified and adjusted until the preset simulation requirements are met, and a foundation pit simulation model is obtained, so that the construction of the physical foundation pit is carried out based on the foundation pit simulation model; the model monitoring module 300 is used to obtain foundation pit monitoring data, import it into the foundation pit simulation model and associate it with the foundation pit deformation model, obtain the deformation model and deformation cloud map of the foundation pit at different time periods, and determine whether the foundation pit pre-deformation value meets the preset deformation requirements based on this, and when the preset deformation requirements are not met, the foundation pit simulation model is processed and adjusted until the preset deformation requirements are met, so as to obtain the foundation pit monitoring model, so as to process and adjust the physical foundation pit based on the foundation pit monitoring model.

[0062] See also Figure 9 , which is a structural block diagram of the model processing module provided by an embodiment of the present invention. As shown in the figure, the model processing module 100 may include: a geological creation submodule 110, a site layout submodule 120, a foundation pit establishment submodule 130, an integration submodule 140, a collision submodule 150, an excavation simulation submodule 160, an excavation statistics submodule 170 and a deformation monitoring submodule 180; wherein, the geological creation submodule 110 is used to create a three-dimensional geological model; the site layout submodule 120 is used to use the REVIT software to arrange the site environment model; the foundation pit establishment submodule 130 is used to use the REVIT software to establish the foundation pit and the foundation pit support system; the integration submodule 140 is used to integrate the three-dimensional geological model, the site environment model, the foundation pit and the foundation pit support system through the RENIT software to obtain a foundation pit combination model; the collision submodule 150 is used to use Navisworks to import the integrated foundation pit combination model The model is used for collision detection. According to the collision detection result, the foundation pit combination model is checked for model conflict. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until there is no conflict in the collision detection result, thereby obtaining a collision detection model; an excavation simulation submodule 160 is used to simulate earthwork excavation for the collision detection model using a three-dimensional animation effect; an excavation statistics submodule 170 is used to count the engineering quantity of the collision detection model and output it; a deformation monitoring submodule 180 is used to associate the settlement deformation data of the entity foundation pit with the collision detection model, and monitor the settlement deformation simulation data of the collision detection model in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the entity foundation pit based on the processing of the collision detection model.

[0063] See also Figure 10, which is a structural block diagram of a construction simulation module provided by an embodiment of the present invention. As shown in the figure, the construction simulation module 200 includes: a model adjustment submodule 210, a collision adjustment submodule 220, a construction simulation submodule 230, a quantity statistics submodule 240, and a drawing output submodule 250; wherein the model adjustment submodule 210 is used to modify and adjust the three-dimensional geology and site in the foundation pit composite model; the collision adjustment submodule 220 is used to perform secondary collision detection on the modified and adjusted model, and based on the collision test results, check whether the modified and adjusted model has model conflicts. If model conflicts occur, the model is optimized and modified, and the model is remodeled and modified until the collision test results show that there are no conflicts, thereby obtaining a secondary detection model; the construction simulation submodule 230 is used to perform construction simulation on the secondary detection model, and if it does not meet the preset simulation requirements, it is modified and adjusted until the preset simulation requirements are met, thereby obtaining a foundation pit simulation model; the quantity statistics submodule 240 is used to perform quantity statistics and output the foundation pit simulation model; and the drawing output submodule 250 is used to output a simulation video during the simulation process as well as drawings and models of the foundation pit simulation model.

[0064] See also Figure 11 , which is a structural block diagram of the model monitoring module provided by an embodiment of the present invention. As shown in the figure, the model monitoring module 300 may include: a data acquisition submodule 310, a data association submodule 320, a data integration submodule 330, and a data prediction submodule 340; wherein the data acquisition submodule 310 is used to use 3D scanning, drones, and intelligent total stations to obtain physical foundation pit deformation data to obtain foundation pit monitoring data; the data association submodule 320 is used to import the acquired foundation pit monitoring data into the foundation pit simulation model and associate it with the corresponding parts and measuring points in the foundation pit simulation model to display the foundation pit monitoring data; the data integration submodule 330 is used to combine the acquired foundation pit monitoring data with the foundation pit simulation model to establish a deformation model and deformation cloud map of the foundation pit at different time periods to display the deformation trend of the model and obtain a deformation curve; the data prediction submodule 340 is used to analyze the foundation pit based on the model deformation trend and deformation curve to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, so as to process and adjust the physical foundation pit based on the foundation pit simulation model.

[0065] Furthermore, in the data acquisition submodule, 3D scanning, drones, and intelligent total stations are used to obtain foundation pit monitoring data.

[0066] It should be noted that, since the analysis and detection method and the analysis and detection system in this embodiment have the same principles, relevant parts can be referenced to each other.

[0067] In addition to the above-mentioned methods and devices, an embodiment of the present invention may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to perform the steps of the method according to various embodiments of the present invention described in the above "Exemplary Method" section of this specification.

[0068] The computer program product may be written in any combination of one or more programming languages ​​to implement the operations of embodiments of the present invention, including object-oriented programming languages ​​such as Java, C++, and conventional procedural programming languages ​​such as C or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's computing device, as a stand-alone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0069] In addition, an embodiment of the present invention may also be a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present invention described in the above "Exemplary Method" section of this specification.

[0070] The computer-readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can, for example, include but is not limited to a system, system or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0071] The basic principles of the present invention have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in the present invention are merely illustrative and non-limiting, and should not be construed as necessarily possessed by each embodiment of the present invention. Furthermore, the specific details disclosed above are provided for illustrative purposes and to facilitate understanding, and are not intended to be limiting. These details do not necessarily limit the present invention to being implemented using these specific details.

[0072] Each embodiment in this specification is described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. References to the same or similar parts between the various embodiments are sufficient. For system embodiments, since they largely correspond to method embodiments, their description is relatively simple. For relevant parts, references to the description of the method embodiments are sufficient.

[0073] The block diagrams of the devices, systems, equipment, and systems involved in the present invention are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, systems, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "including," "comprising," "having," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0074] The method and system of the present invention may be implemented in many ways. For example, the method and system of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above sequence of steps for the method is for illustration only, and the steps of the method of the present invention are not limited to the sequence specifically described above, unless otherwise specified. In addition, in some embodiments, the present invention may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present invention. Thus, the present invention also covers recording media that store programs for executing the method according to the present invention.

[0075] It should also be noted that, in the system, device and method of the present invention, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. The above description of the disclosed aspects is provided to enable any technician in this field to make or use the present invention. Various modifications to these aspects will be very obvious to those skilled in the art, and the general principles defined here can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown here, but according to the widest scope consistent with the principles disclosed here and novel features.

[0076] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A foundation pit simulation analysis and detection method using BIM, characterized in that: The steps include: Model processing steps: Based on BIM, a 3D geological model, site model, foundation pit and foundation pit support system model are constructed, and model integration, collision detection, and earthwork excavation simulation are performed. Based on the collision detection results and earthwork excavation simulation results, model optimization and model processing are performed to obtain a foundation pit composite model, and then the physical foundation pit is excavated based on the foundation pit composite model; The construction simulation step is to modify and adjust the foundation pit combination model and perform construction simulation. If it does not meet the preset simulation requirements, it is modified and adjusted until it meets the preset simulation requirements, and a foundation pit simulation model is obtained, so as to carry out the construction of the physical foundation pit based on the foundation pit simulation model. The model monitoring step is to obtain the foundation pit monitoring data, import it into the foundation pit simulation model and associate it with the foundation pit deformation model, obtain the deformation model and deformation cloud map of the foundation pit at different time periods, and based on this, determine whether the foundation pit pre-deformation value meets the preset deformation requirements. When the preset deformation requirements are not met, the foundation pit simulation model is processed and adjusted until the preset deformation requirements are met, and the foundation pit monitoring model is obtained to process and adjust the physical foundation pit based on the foundation pit monitoring model.

2. The method for foundation pit simulation analysis and detection using BIM according to claim 1 is characterized in that: The model processing step includes the following sub-steps: The geological creation sub-step creates a three-dimensional geological model; In the site layout sub-step, the site environment model is arranged using REVIT software; In the foundation pit establishment sub-step, the foundation pit and foundation pit support system are established using REVIT software; In the integration sub-step, the three-dimensional geological model, site environment model, foundation pit and foundation pit support system are integrated through RENIT software to obtain a foundation pit composite model; In the collision sub-step, Navisworks is used to import the integrated foundation pit combination model for collision detection. Based on the collision detection results, the foundation pit combination model is checked for model conflicts. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until the collision detection results show that there is no conflict, thus obtaining a collision detection model. In the excavation simulation sub-step, three-dimensional animation effects are used to simulate earth excavation on the collision detection model; Excavation statistics sub-step, calculates the engineering quantity of the collision detection model and outputs it; The deformation monitoring sub-step associates the settlement deformation data of the physical foundation pit with the collision detection model, and monitors the settlement deformation simulation data of the collision detection model in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the physical foundation pit based on the processing of the collision detection model.

3. The method for foundation pit simulation analysis and detection using BIM according to claim 1 or 2, characterized in that: The construction simulation step includes the following sub-steps: The model adjustment sub-step modifies and adjusts the three-dimensional geology and site in the foundation pit composite model; In the collision adjustment sub-step, a secondary collision test is performed on the modified and adjusted model. Based on the collision test results, the modified and adjusted model is checked for model conflicts. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until the collision test results show no conflicts, thus obtaining a secondary test model. In the construction simulation sub-step, the secondary inspection model is subjected to construction simulation. If it does not meet the preset simulation requirements, the model is modified and adjusted until the preset simulation requirements are met, thereby obtaining a foundation pit simulation model. The engineering quantity statistics sub-step is to count and output the engineering quantity of the foundation pit simulation model; The drawing output sub-step outputs the simulation video during the simulation process as well as the drawings and models of the foundation pit simulation model.

4. The method for foundation pit simulation analysis and detection using BIM according to claim 1 or 2, characterized in that: The model monitoring step includes the following sub-steps: The data acquisition sub-step acquires the deformation data of the physical foundation pit and obtains the foundation pit monitoring data; The data association sub-step imports the acquired foundation pit monitoring data into the foundation pit simulation model and associates it with the corresponding parts and measurement points in the foundation pit simulation model to display the foundation pit monitoring data; In the data integration sub-step, the acquired foundation pit monitoring data is combined with the foundation pit simulation model to establish the deformation model and deformation cloud map of the foundation pit at different time periods to show the deformation trend of the model and obtain the deformation curve; The data prediction sub-step performs foundation pit analysis based on the model deformation trend and deformation curve to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, so as to adjust the physical foundation pit based on the foundation pit simulation model.

5. The method for foundation pit simulation analysis and detection using BIM according to claim 4 is characterized in that: In the data acquisition sub-step, foundation pit monitoring data is acquired using 3D scanning, drones, and intelligent total stations.

6. A foundation pit simulation analysis and detection system using BIM, characterized in that: The steps include: The model processing module is used to create a 3D geological model, site model, foundation pit and foundation pit support system model based on BIM, and to perform model integration, collision detection, and earthwork excavation simulation. Based on the collision detection results and earthwork excavation simulation results, the module performs model optimization and model processing to obtain a foundation pit composite model, and then excavates the physical foundation pit based on the foundation pit composite model. The construction simulation module is used to modify and adjust the foundation pit combination model and perform construction simulation. If it does not meet the preset simulation requirements, it will be modified and adjusted until it meets the preset simulation requirements, and a foundation pit simulation model will be obtained to carry out the construction of the physical foundation pit based on the foundation pit simulation model; The model monitoring module is used to obtain foundation pit monitoring data, import it into the foundation pit simulation model and associate it with the foundation pit deformation model, obtain the deformation model and deformation cloud map of the foundation pit at different time periods, and based on this, determine whether the foundation pit pre-deformation value meets the preset deformation requirements. When the preset deformation requirements are not met, the foundation pit simulation model is processed and adjusted until the preset deformation requirements are met, and the foundation pit monitoring model is obtained to process and adjust the physical foundation pit based on the foundation pit monitoring model.

7. The foundation pit simulation analysis and detection system using BIM according to claim 6 is characterized in that: The model processing module includes: Geological creation submodule, used to create three-dimensional geological models; Site layout submodule, used to layout the site environment model using REVIT software; The foundation pit establishment submodule is used to establish the foundation pit and foundation pit support system using REVIT software; The integration submodule is used to integrate the 3D geological model, site environment model, foundation pit and foundation pit support system through RENIT software to obtain a foundation pit composite model; The collision submodule is used to use Navisworks to import the integrated foundation pit combination model for collision detection. Based on the collision detection results, the foundation pit combination model is checked to see if there is any model conflict. If there is a model conflict, the model is optimized and modified, and the model is remodeled and modified until the collision detection results show that there is no conflict, thus obtaining the collision detection model. Excavation simulation submodule, used to simulate earth excavation on the collision detection model using 3D animation effects; Excavation statistics submodule, used to count and output the engineering quantities of the collision detection model; The deformation monitoring submodule is used to associate the settlement deformation data of the physical foundation pit with the collision detection model, and monitor the settlement deformation simulation data of the collision detection model in real time. When the settlement deformation simulation data does not meet the preset settlement deformation value, the collision detection model is processed and simulated until the settlement deformation simulation data meets the preset settlement deformation value, so as to process and adjust the physical foundation pit based on the processing of the collision detection model.

8. The foundation pit simulation analysis and detection system using BIM according to claim 6 or 7, characterized in that: The construction simulation module includes: The model adjustment submodule is used to modify and adjust the three-dimensional geology and site in the foundation pit combination model; The collision adjustment submodule is used to perform secondary collision detection on the modified and adjusted model. According to the collision test results, the modified and adjusted model is checked to see if there is a model conflict. If a model conflict occurs, the model is optimized and modified, and the model is remodeled and modified until the collision test results show no conflict, and a secondary detection model is obtained. The construction simulation submodule is used to perform construction simulation on the secondary inspection model. If it does not meet the preset simulation requirements, it will be modified and adjusted until it meets the preset simulation requirements to obtain a foundation pit simulation model; The engineering quantity statistics submodule is used to perform engineering quantity statistics and output for the foundation pit simulation model; The drawing output submodule is used to output the simulation video during the simulation process as well as the drawings and models of the foundation pit simulation model.

9. The foundation pit simulation analysis and detection system using BIM according to claim 6 or 7, characterized in that: The model monitoring module includes: The data acquisition submodule is used to obtain the deformation data of the physical foundation pit using 3D scanning, drones, and intelligent total stations to obtain foundation pit monitoring data; The data association submodule is used to import the acquired foundation pit monitoring data into the foundation pit simulation model and associate it with the corresponding parts and measuring points in the foundation pit simulation model to display the foundation pit monitoring data; The data integration submodule is used to combine the acquired foundation pit monitoring data with the foundation pit simulation model to establish the deformation model and deformation cloud map of the foundation pit at different time periods to show the deformation trend of the model and obtain the deformation curve; The data prediction submodule is used to analyze the foundation pit based on the model deformation trend and deformation curve to determine whether the foundation pit deformation meets the preset settlement deformation value. If not, the foundation pit simulation model is adjusted until the preset settlement deformation value is met, so as to adjust the physical foundation pit based on the foundation pit simulation model.

10. The foundation pit simulation analysis and detection system using BIM according to claim 9 is characterized in that: In the data acquisition submodule, foundation pit monitoring data is acquired using 3D scanning, drones, and intelligent total stations.

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