Foundation pit construction monitoring method and system based on BIM

Abstract

The invention discloses a BIM-based foundation pit construction monitoring method and system, and belongs to the technical field of foundation pit construction monitoring, and the method comprises the following steps: firstly, obtaining related information; according to the method, the BIM modeling technology is introduced, various related parameters of the foundation pit can be obtained, the three-dimensional model can be established, all detection data can be interconnected with the three-dimensional model, therefore, the effective and stable monitoring effect on foundation pit construction can be completed, the established three-dimensional model has a simplification and texture processing process, and the construction efficiency is improved. According to the method, some unimportant models can be simplified, the occupied size of the whole model is reduced, the stability of model operation is ensured, some important model details can be presented, the whole modeling effect is improved, meanwhile, the setting process of an early warning mechanism is further integrated in the method, a monitoring threshold value can be set, and the monitoring accuracy is improved. And when the monitoring exceeds a threshold value, an early warning mechanism can be automatically triggered, so that problems can be quickly handled, stable construction is ensured, and the construction risk is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of foundation pit construction monitoring, and in particular relates to a BIM-based foundation pit construction monitoring method and system. Background Art

[0002] The foundation pit refers to the earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. This kind of earth pit is an important part of the foundation construction of buildings and structures, and it is also the primary link of foundation construction. The construction quality of the foundation pit excavation directly affects the safety and economy of the foundation construction. When the foundation pit is being constructed, it needs to be monitored.

[0003] China's patent discloses (CN107121954A) a civil engineering foundation pit construction monitoring system and monitoring method, the monitoring system includes a man-machine operation module, a data acquisition module, a video data acquisition module, a central processing unit, a prediction analysis module, an expert evaluation module, a physical model construction module, a virtual actuator, a virtual sensor, a simulation analysis module and an alarm module. The method is safe and practical, convenient, real-time and effective, avoiding safety problems in foundation pit construction monitoring, and the system can be used in various construction environment sites, eliminating safety information hidden dangers during the construction process, effectively detecting and managing the construction site, and maintaining the normal operation of the detection system of the construction site. Although the current foundation pit construction monitoring method can also realize the monitoring of foundation pit construction, it is not equipped with an emergency warning mechanism. After problems occur in the foundation pit construction, it is impossible to respond quickly and reduce risks. At the same time, the BIM model is not introduced, resulting in the monitoring of the foundation pit not being three-dimensional and the monitoring effect being poor. In order to solve this problem, a BIM-based foundation pit construction monitoring method and system are urgently needed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that although the current foundation pit construction monitoring method can also realize the monitoring of foundation pit construction, it does not have an emergency warning mechanism. After problems occur in the foundation pit construction, it is impossible to respond quickly and reduce risks. At the same time, the BIM model is not introduced, resulting in the monitoring of the foundation pit is not three-dimensional and the monitoring effect is not good. A foundation pit construction monitoring method and system based on BIM are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a foundation pit construction monitoring method based on BIM, comprising the following steps:

[0006] S1. First obtain relevant information;

[0007] S2. Process relevant information;

[0008] S3. Establish BIM model;

[0009] S4, arranging sensors;

[0010] S5. Rapidly associate data;

[0011] S6. Set up an emergency warning mechanism;

[0012] S7. Conduct real-time monitoring and analysis;

[0013] S8. Share data.

[0014] As a further description of the above technical solution:

[0015] In S1, relevant information is first acquired, and the acquired relevant information includes GPS positioning information of the foundation pit, surrounding environment information of the foundation pit, image information of the foundation pit, parameter information of the foundation pit and structural parameters of the foundation pit.

[0016] As a further description of the above technical solution:

[0017] In S2, the relevant information is processed, and the processing steps specifically include: first flattening the information, then screening the information one by one, marking and recording abnormal information, deleting the abnormal information, backtracking and supplementing the deleted information, and classifying, grouping and numbering the information, with the numbering adopting one or more of digital numbering and alphabetical numbering.

[0018] As a further description of the above technical solution:

[0019] In S3, a BIM model is established, and the specific steps are: first select appropriate 3D software, import relevant 3D data of the foundation pit into the 3D software, perform 3D modeling, mark each data, establish a terrain model, import the 3D model into the terrain model, simplify the model, and perform texture processing on the model.

[0020] As a further description of the above technical solution:

[0021] In S4, sensors are installed at key locations of the foundation pit and its surroundings to monitor the deformation, stress state, and groundwater level parameters of the foundation pit in real time. The sensors include displacement sensors, stress gauges, water level gauges, and earth pressure boxes.

[0022] As a further description of the above technical solution:

[0023] In S5, the data collected by the sensor is associated with the BIM model to realize the visual display of the data in three-dimensional space. The specific steps are: through the data interface or plug-in, the sensor data is imported into the BIM model in real time, corresponding to the specific spatial position, and the data changes are monitored in real time.

[0024] As a further description of the above technical solution:

[0025] In S6, an emergency warning mechanism is set up, and a reasonable warning threshold is set according to the foundation pit design requirements and construction specifications to ensure timely discovery and handling of potential risks. The specific steps are: setting warning parameters in the BIM model, when the sensor data exceeds the threshold, the system automatically triggers the warning, and quickly releases the information to notify relevant personnel, and the notification method is one or more of mobile phone text messages, emails, and APP push.

[0026] As a further description of the above technical solution:

[0027] In S7, real-time monitoring and analysis are performed, various monitoring data are analyzed, and the data analysis tools integrated in the BIM platform are used to compare them with standard data, evaluate the foundation pit construction, and generate a final evaluation report.

[0028] As a further description of the above technical solution:

[0029] In S8, data is shared and classified, some public data is shared using a local area network, and some core data is encrypted using an encryption algorithm, which uses one or more of the MD5 encryption algorithm and the RSA encryption algorithm.

[0030] The present invention also discloses a foundation pit construction monitoring system based on BIM, comprising a relevant information acquisition module, the output end of the relevant information acquisition module is connected to the input end of the relevant information processing module, the output end of the relevant information processing module is connected to the input end of the BIM model establishment module, the output end of the BIM model establishment module is connected to the input end of the sensor layout module, the output end of the sensor layout module is connected to the input end of the data rapid association module, the output end of the data rapid association module is connected to the input end of the emergency warning mechanism setting module, the output end of the emergency warning mechanism setting module is connected to the input end of the real-time monitoring and analysis module, and the output end of the real-time monitoring and analysis module is connected to the input end of the data sharing module.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] In the present invention, the method introduces BIM modeling technology, which can obtain various relevant parameters of the foundation pit and establish a three-dimensional model. All detection data can be interconnected with the three-dimensional model, so as to achieve an effective and stable monitoring effect on the foundation pit construction. The established three-dimensional model has a simplification and texture processing process, which can simplify some unimportant models, reduce the memory size of the overall model, ensure the stability of the model operation, and at the same time enable some important model details to be presented, thereby improving the overall modeling effect. At the same time, the method also incorporates a setting process of an early warning mechanism, which can set a monitoring threshold. When the monitoring exceeds the threshold, the early warning mechanism can be automatically triggered, which is convenient for rapid processing of problems, ensuring stable construction and reducing construction risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a flow chart of a foundation pit construction monitoring method based on BIM.

[0034] Figure 2 It is a schematic diagram of the module structure of a foundation pit construction monitoring system based on BIM. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] See also Figure 1 The present invention provides a technical solution: a foundation pit construction monitoring method based on BIM, comprising the following steps:

[0038] S1. First, relevant information is obtained, including GPS positioning information of the foundation pit, surrounding environment information of the foundation pit, image information of the foundation pit, parameter information of the foundation pit and structural parameters of the foundation pit;

[0039] S2. Process the relevant information. The processing steps specifically include: first, flatten the information, then screen the information one by one, mark and record the abnormal information, delete the abnormal information, trace back and complete the deleted information, classify and group the information and number it, and the numbering adopts alphabetical numbering;

[0040] S3, establish a BIM model, the specific steps are: first select a suitable 3D software, import the relevant 3D data of the foundation pit into the 3D software, perform 3D modeling, mark each data, establish a terrain model, import the 3D model into the terrain model, simplify the model, and perform texture processing on the model;

[0041] S4. Install sensors at key locations of the foundation pit and its surroundings to monitor the deformation, stress state, and groundwater level parameters of the foundation pit in real time. The sensors include displacement sensors, stress gauges, water level gauges, and earth pressure cells;

[0042] S5. Associating the data collected by the sensor with the BIM model to realize the visualization of the data in three-dimensional space. The specific steps are: importing the sensor data into the BIM model in real time through the data interface or plug-in, corresponding to the specific spatial position, and monitoring the data changes in real time;

[0043] S6. Set up an emergency warning mechanism. According to the foundation pit design requirements and construction specifications, set a reasonable warning threshold to ensure timely discovery and handling of potential risks. The specific steps are: set warning parameters in the BIM model. When the sensor data exceeds the threshold, the system automatically triggers the warning and quickly releases the information to notify relevant personnel. The notification method is email and APP push;

[0044] S7. Conduct real-time monitoring and analysis, analyze various monitoring data, use the data analysis tools integrated in the BIM platform to compare them with standard data, evaluate the foundation pit construction, and generate a final evaluation report;

[0045] S8. Share data, classify data, share some public data using the local area network, and encrypt some core data using the MD5 encryption algorithm.

[0046] See also Figure 2 The present invention also provides a foundation pit construction monitoring system based on BIM, including a relevant information acquisition module, the output end of the relevant information acquisition module is connected to the input end of the relevant information processing module, the output end of the relevant information processing module is connected to the input end of the BIM model establishment module, the output end of the BIM model establishment module is connected to the input end of the sensor layout module, the output end of the sensor layout module is connected to the input end of the data rapid association module, the output end of the data rapid association module is connected to the input end of the emergency warning mechanism setting module, the output end of the emergency warning mechanism setting module is connected to the input end of the real-time monitoring and analysis module, and the output end of the real-time monitoring and analysis module is connected to the input end of the data sharing module.

[0047] In this embodiment, the method introduces BIM modeling technology, which can obtain various relevant parameters of the foundation pit and establish a three-dimensional model. All detection data can be interconnected with the three-dimensional model, so as to achieve effective and stable monitoring of the foundation pit construction. The established three-dimensional model has a simplification and texture processing process, which can simplify some unimportant models, reduce the memory size of the overall model, ensure the stability of the model operation, and at the same time enable some important model details to be presented, thereby improving the overall modeling effect.

[0048] Example 2

[0049] See also Figure 1 The present invention provides a technical solution: a foundation pit construction monitoring method based on BIM, comprising the following steps:

[0050] S1. First, relevant information is obtained, including GPS positioning information of the foundation pit, surrounding environment information of the foundation pit, image information of the foundation pit, parameter information of the foundation pit and structural parameters of the foundation pit;

[0051] S2. Process the relevant information. The processing steps specifically include: first, flatten the information, then screen the information one by one, mark and record the abnormal information, delete the abnormal information, trace back and complete the deleted information, classify and group the information and number it, and the numbering adopts digital numbering;

[0052] S3, establish a BIM model, the specific steps are: first select a suitable 3D software, import the relevant 3D data of the foundation pit into the 3D software, perform 3D modeling, mark each data, establish a terrain model, import the 3D model into the terrain model, simplify the model, and perform texture processing on the model;

[0053] S4. Install sensors at key locations of the foundation pit and its surroundings to monitor the deformation, stress state, and groundwater level parameters of the foundation pit in real time. The sensors include displacement sensors, stress gauges, water level gauges, and earth pressure cells;

[0054] S5. Associating the data collected by the sensor with the BIM model to realize the visualization of the data in three-dimensional space. The specific steps are: importing the sensor data into the BIM model in real time through the data interface or plug-in, corresponding to the specific spatial position, and monitoring the data changes in real time;

[0055] S6. Set up an emergency warning mechanism. According to the foundation pit design requirements and construction specifications, set a reasonable warning threshold to ensure timely discovery and handling of potential risks. The specific steps are: set warning parameters in the BIM model. When the sensor data exceeds the threshold, the system automatically triggers the warning and quickly releases the information to notify relevant personnel. The notification method is APP push;

[0056] S7. Conduct real-time monitoring and analysis, analyze various monitoring data, use the data analysis tools integrated in the BIM platform to compare them with standard data, evaluate the foundation pit construction, and generate a final evaluation report;

[0057] S8. Share data, classify data, share some public data using the local area network, and encrypt some core data using the RSA encryption algorithm.

[0058] See also Figure 2 The present invention also provides a foundation pit construction monitoring system based on BIM, including a relevant information acquisition module, the output end of the relevant information acquisition module is connected to the input end of the relevant information processing module, the output end of the relevant information processing module is connected to the input end of the BIM model establishment module, the output end of the BIM model establishment module is connected to the input end of the sensor layout module, the output end of the sensor layout module is connected to the input end of the data rapid association module, the output end of the data rapid association module is connected to the input end of the emergency warning mechanism setting module, the output end of the emergency warning mechanism setting module is connected to the input end of the real-time monitoring and analysis module, and the output end of the real-time monitoring and analysis module is connected to the input end of the data sharing module.

[0059] In this embodiment, the method also incorporates a setting process of an early warning mechanism, which can set a monitoring threshold. When the monitoring exceeds the threshold, the early warning mechanism can be automatically triggered, which facilitates rapid processing of problems, ensures stable construction, and reduces construction risks.

[0060] Example 3

[0061] See also Figure 1 The present invention provides a technical solution: a foundation pit construction monitoring method based on BIM, comprising the following steps:

[0062] S1. First, relevant information is obtained, including GPS positioning information of the foundation pit, surrounding environment information of the foundation pit, image information of the foundation pit, parameter information of the foundation pit and structural parameters of the foundation pit;

[0063] S2. Process the relevant information. The processing steps specifically include: first, flatten the information, then screen the information one by one, mark and record the abnormal information, delete the abnormal information, trace back and complete the deleted information, classify and group the information and number it, and the numbering adopts digital numbering;

[0064] S3, establish a BIM model, the specific steps are: first select a suitable 3D software, import the relevant 3D data of the foundation pit into the 3D software, perform 3D modeling, mark each data, establish a terrain model, import the 3D model into the terrain model, simplify the model, and perform texture processing on the model;

[0065] S4. Install sensors at key locations of the foundation pit and its surroundings to monitor the deformation, stress state, and groundwater level parameters of the foundation pit in real time. The sensors include displacement sensors, stress gauges, water level gauges, and earth pressure cells;

[0066] S5. Associating the data collected by the sensor with the BIM model to realize the visualization of the data in three-dimensional space. The specific steps are: importing the sensor data into the BIM model in real time through the data interface or plug-in, corresponding to the specific spatial position, and monitoring the data changes in real time;

[0067] S6. Set up an emergency warning mechanism. According to the foundation pit design requirements and construction specifications, set a reasonable warning threshold to ensure timely discovery and handling of potential risks. The specific steps are: set warning parameters in the BIM model. When the sensor data exceeds the threshold, the system automatically triggers the warning and quickly releases the information to notify relevant personnel. The notification method is mobile phone text messages;

[0068] S7. Conduct real-time monitoring and analysis, analyze various monitoring data, use the data analysis tools integrated in the BIM platform to compare them with standard data, evaluate the foundation pit construction, and generate a final evaluation report;

[0069] S8. Share data, classify data, share some public data using the local area network, and encrypt some core data using the MD5 encryption algorithm.

[0070] See also Figure 2 The present invention also provides a foundation pit construction monitoring system based on BIM, including a relevant information acquisition module, the output end of the relevant information acquisition module is connected to the input end of the relevant information processing module, the output end of the relevant information processing module is connected to the input end of the BIM model establishment module, the output end of the BIM model establishment module is connected to the input end of the sensor layout module, the output end of the sensor layout module is connected to the input end of the data rapid association module, the output end of the data rapid association module is connected to the input end of the emergency warning mechanism setting module, the output end of the emergency warning mechanism setting module is connected to the input end of the real-time monitoring and analysis module, and the output end of the real-time monitoring and analysis module is connected to the input end of the data sharing module.

[0071] In this embodiment, the method introduces BIM modeling technology, which can obtain various relevant parameters of the foundation pit and establish a three-dimensional model. All detection data can be interconnected with the three-dimensional model, so as to achieve effective and stable monitoring of the foundation pit construction. The established three-dimensional model has a simplification and texture processing process, which can simplify some unimportant models, reduce the memory size of the overall model, ensure the stability of the model operation, and at the same time enable some important model details to be presented, thereby improving the overall modeling effect. At the same time, the method also incorporates the setting process of the early warning mechanism, which can set the monitoring threshold. When the monitoring exceeds the threshold, the early warning mechanism can be automatically triggered, which is convenient for rapid processing of problems, ensuring stable construction and reducing construction risks.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foundation pit construction monitoring method based on BIM, characterized in that: The steps include: S1. First obtain relevant information; S2. Process relevant information; S3. Establish BIM model; S4, arranging sensors; S5. Rapidly associate data; S6. Set up an emergency warning mechanism; S7. Conduct real-time monitoring and analysis; S8. Share data.

2. A BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S1, relevant information is first acquired, and the acquired relevant information includes GPS positioning information of the foundation pit, surrounding environment information of the foundation pit, image information of the foundation pit, parameter information of the foundation pit and structural parameters of the foundation pit.

3. The BIM-based foundation pit construction monitoring method according to claim 1 is characterized in that: In S2, the relevant information is processed, and the processing steps specifically include: first flattening the information, then screening the information one by one, marking and recording abnormal information, deleting the abnormal information, backtracking and supplementing the deleted information, and classifying, grouping and numbering the information, with the numbering adopting one or more of digital numbering and alphabetical numbering.

4. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S3, a BIM model is established, and the specific steps are: first select appropriate 3D software, import relevant 3D data of the foundation pit into the 3D software, perform 3D modeling, mark each data, establish a terrain model, import the 3D model into the terrain model, simplify the model, and perform texture processing on the model.

5. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S4, sensors are installed at key locations of the foundation pit and its surroundings to monitor the deformation, stress state, and groundwater level parameters of the foundation pit in real time. The sensors include displacement sensors, stress gauges, water level gauges, and earth pressure boxes.

6. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S5, the data collected by the sensor is associated with the BIM model to realize the visual display of the data in three-dimensional space. The specific steps are: through the data interface or plug-in, the sensor data is imported into the BIM model in real time, corresponding to the specific spatial position, and the data changes are monitored in real time.

7. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S6, an emergency warning mechanism is set up, and a reasonable warning threshold is set according to the foundation pit design requirements and construction specifications to ensure timely discovery and handling of potential risks. The specific steps are: setting warning parameters in the BIM model, when the sensor data exceeds the threshold, the system automatically triggers the warning, and quickly releases the information to notify relevant personnel, and the notification method is one or more of mobile phone text messages, emails, and APP push.

8. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S7, real-time monitoring and analysis are performed, various monitoring data are analyzed, and the data are compared with standard data using the data analysis tool integrated in the BIM platform, the foundation pit construction is evaluated, and a final evaluation report is generated.

9. The BIM-based foundation pit construction monitoring method according to claim 1, characterized in that: In S8, data is shared and classified, some public data is shared using a local area network, and some core data is encrypted using an encryption algorithm, which uses one or more of the MD5 encryption algorithm and the RSA encryption algorithm.

10. A foundation pit construction monitoring system based on BIM, characterized in that: It includes a relevant information acquisition module, the output end of the relevant information acquisition module is connected to the input end of the relevant information processing module, the output end of the relevant information processing module is connected to the input end of the BIM model establishment module, the output end of the BIM model establishment module is connected to the input end of the sensor layout module, the output end of the sensor layout module is connected to the input end of the data rapid association module, the output end of the data rapid association module is connected to the input end of the emergency warning mechanism setting module, the output end of the emergency warning mechanism setting module is connected to the input end of the real-time monitoring and analysis module, and the output end of the real-time monitoring and analysis module is connected to the input end of the data sharing module.

Images