BIM-based underground section equipment limit detection method, storage medium and equipment

Abstract

The present invention provides a method, storage medium and device for detecting the limit of underground equipment in an underground section based on BIM, comprising the steps of: obtaining the interval measurement data of the tunnel; modeling in BIM software according to the measurement data to obtain a three-dimensional solid model of the measurement data; obtaining design parameters, limit values ​​and superelevation parameters of the track; arranging the equipment in three dimensions in the three-dimensional solid model according to the design parameters; and outputting the detection result or limit violation data when it is detected that the equipment does not exist or violates the limit. The present invention creates a three-dimensional equipment model and a three-dimensional tunnel model, and determines whether the equipment and building structures violate the limit by detecting whether the equipment limit and the equipment gap meet the standard and whether the equipment limit and the measured tunnel gap meet the standard in three-dimensional space.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary tools, and specifically relates to a method, storage medium and device for detecting underground equipment limits based on BIM. Background Art

[0002] In the underground tunnel section, there are overhead lines, weak-current pipeline supports, strong-current pipeline supports, evacuation platforms, water supply and drainage and fire-fighting water pipes, signal lights, power cable supports, track bed and other facilities and equipment. According to the requirements of the "Metro Limit Standard" and the "Metro Design Specification", for example, there should be a safety distance of no less than 200 mm between civil structures and equipment limits, and a safety gap of 50 mm between equipment facilities and equipment limits. When the construction of the underground tunnel is completed, the tunnel needs to be tested to verify whether the equipment limits meet the requirements of the specifications after the equipment is installed.

[0003] The existing equipment limit detection technology is generally based on two-dimensional detection of all planes of the section. The limitation is that the real world is three-dimensional. Three-dimensional equipment is used in actual construction, and the equipment is only projected onto a certain plane. It is not intuitive, and the projection direction may not be the best direction, resulting in the space occupied by the equipment not being accurately described, so that the detection on this section cannot restore the actual situation on the scene, resulting in erroneous detection results. For example, the Chinese patent with patent number CN 110793501 A discloses a subway tunnel limit detection method, which can unify the coordinate system of the rail car and the section point cloud through model calculation, so as to further judge the boundary. This method involves laser scanning of the section point cloud in the tunnel, and when there is equipment in the tunnel, the noise of the scanned point cloud is difficult to handle, and the training and testing of the regression model of the sample set is time-consuming and inefficient, and it is difficult to be practical. In addition, the above method is limited to detection on two-dimensional sections. Summary of the invention

[0004] In order to overcome the above technical defects, the first aspect of the present invention provides a method for detecting the clearance of underground equipment based on BIM, comprising the steps of:

[0005] Obtaining interval measurement data of the tunnel;

[0006] Modeling is performed in BIM software according to the measurement data to obtain a three-dimensional solid model of the measurement data;

[0007] Obtain design parameters, limit values ​​and superelevation parameters of the track;

[0008] According to the design parameters, three-dimensional arrangement of equipment is performed in the three-dimensional solid model;

[0009] When it is detected that there is no intrusion on the device, a detection result is output.

[0010] As a further improvement of the present invention, the step of obtaining interval measurement data includes:

[0011] The key point information is obtained through the total station to obtain the interval measurement data.

[0012] As a further improvement of the present invention, after obtaining the interval measurement data, the following steps are further included:

[0013] The measurement data is subjected to coordinate transformation to obtain the three-dimensional coordinate value of each key point based on a rectangular coordinate system.

[0014] As a further improvement of the present invention, the step of performing three-dimensional arrangement of equipment in the three-dimensional solid model according to the design parameters includes:

[0015] Get the layout rules;

[0016] The position of the device is determined according to the arrangement rule, and the device is arranged in the three-dimensional solid model.

[0017] As a further improvement of the present invention, the present invention further comprises the steps of:

[0018] When it is detected that the device has violated the limit, the design parameters are re-acquired, and the device is rearranged in three dimensions in the three-dimensional solid model until it is detected that the device has not violated the limit and the violation data is output, or the design parameters can no longer be modified.

[0019] The second aspect of the present invention provides a computer-readable storage medium, which stores at least one instruction, at least one program, code set or instruction set. The at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the above-mentioned underground interval equipment limit detection method.

[0020] The third aspect of the present invention is a computer device, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to implement the above-mentioned underground interval equipment limit detection method.

[0021] Compared with the prior art, the present invention has the following beneficial effects: by creating a three-dimensional equipment model and a three-dimensional tunnel model, it is determined whether the equipment and structures violate the limits by detecting in three-dimensional space whether the equipment limits and equipment gaps meet the standards, and whether the equipment limits and the measured tunnel gaps meet the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 This is a flow chart of the underground section equipment clearance detection method described in Example 1;

[0024] Figure 2 This is a schematic diagram of a three-dimensional device in Example 1;

[0025] Figure 3 This is a schematic diagram of collision detection between the evacuation platform support and the equipment limit in Example 1;

[0026] Figure 4 The violation data table in Example 1;

[0027] Figure 5 This is a schematic diagram of the structure of the computer device described in Example 3. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] It should be noted that step S1, step S2, etc. in the text are merely used as distinguishing numbers between steps, and do not mean that the steps in the text need to be arranged in sequence.

[0030] Example 1

[0031] This embodiment provides a method for detecting the clearance of underground equipment based on BIM. Figure 1 and Figure 2 As shown, the steps include:

[0032] S1. Obtain key point information through the total station, obtain interval measurement data, perform coordinate conversion on the measurement data, and obtain the three-dimensional coordinate value of each key point based on the rectangular coordinate system.

[0033] S2. Modeling is performed in BIM software based on the measured data, and the lofting fusion function in the BIM software is used to obtain a three-dimensional solid model of the measured data.

[0034] S3. Obtain design parameters, limit values ​​and superelevation parameters of the track. The design parameters include: line plane data, line longitudinal section data, line broken link data, equipment limit coordinates and interval limit values, roadbed parameters, evacuation platform parameters, support parameters, contact network parameters, and other equipment parameters. Superelevation parameters are the superelevation parameters of the track for different curve sections. At the same time, obtain the coordinate points such as equipment limit values ​​and vehicle limit values, and obtain the limit widening values ​​of each curve section.

[0035] S4. According to the design parameters, the three-dimensional layout of the equipment is carried out in the three-dimensional solid model, specifically:

[0036] S41. Obtaining layout rules. It should be noted that the layout rules need to be obtained according to the specifications and rules of each profession and for different equipment in different professions.

[0037] S42. Determine the position of the equipment according to the layout rule, and arrange the equipment in the three-dimensional solid model.

[0038] S5. When it is detected that the device does not infringe the limit, the detection result is output, that is, "there is no infringe the limit".

[0039] S6. When it is detected that the device has violated the limit, the design parameters are acquired again, and the device is rearranged in three dimensions in the three-dimensional solid model until it is detected that the device has not violated the limit and the violation data is output, or the design parameters can no longer be modified and the violation data is output.

[0040] For three-dimensional equipment that is modeled in accordance with professional specifications and rules and has a relative position relationship with the measured tunnel, such as supports, evacuation platforms, contact lines, etc., collision detection is performed on such three-dimensional equipment and the three-dimensional entities of the equipment limits. The collision results and the gaps with the equipment limits are analyzed to determine whether there are related equipment and civil structures that infringe the limits.

[0041] Next, the present embodiment is explained by taking the evacuation platform bracket as an example, as follows:

[0042] like Figure 3 and Figure 4 As shown in the figure, the layout rules are set according to the requirements of the specifications and rules, and then the position relationship between the evacuation platform bracket and the measured tunnel is determined. Specifically, the platform beam is at a track surface elevation of 1.1 meters, and the left end of the beam is close to the measured tunnel wall. The designed beam length value is used as the design parameter in the BIM software (to facilitate its assignment, reading and writing to drive and adjust the final position and shape of the bracket), and the evacuation platform bracket is three-dimensionally modeled in the BIM software.

[0043] The equipment limit contour is three-dimensionally modeled along the line centerline, and collision detection between the equipment limit entity and the evacuation platform bracket is performed to output the collision detection results as well as the current equipment parameters and corresponding mileage.

[0044] When the output results show a collision that does not meet the specifications and rules, the relevant parameters of the equipment are adjusted within the equipment adjustment size range, and the collision detection is repeated until the three-dimensional equipment layout meets the equipment limit requirements, or when it is determined that the specifications and rules cannot be met in the end, the specific results are output and the loop is ended, and the line adjustment suggestions are output.

[0045] like Figure 4As shown, the limit violation data include: limit violation mileage, limit violation value, maximum length that can be set, limit value and whether the requirements are met. In the design specifications, the minimum width of the evacuation platform is 600mm, and in the design, after modeling and testing, the maximum distance between the measured tunnel and the equipment limit is 985mm, which means that the evacuation platform arranged according to the current design rules does not violate the limit.

[0046] In summary, the underground equipment limit detection method of this embodiment constructs a multi-dimensional engineering information model with visualization, coordination, simulation and optimization. The method focuses on completing collision detection in the three-dimensional model of the BIM platform, and provides real-time feedback on the intrusion area and related data. At the same time, since this method models each professional equipment in three dimensions, it can be better connected with each professional design, greatly changing the traditional design model, while greatly reducing the waste of various repetitive operations and the low efficiency of the design industry, saving a lot of manpower and material resources, and having good economic and social benefits.

[0047] Example 2

[0048] The present embodiment provides a computer-readable storage medium, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the underground interval equipment limit detection method of Example 1.

[0049] Optionally, the computer readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a solid state drive (SSD), or an optical disk, etc. Among them, the random access memory may include a resistance random access memory (ReRAM) and a dynamic random access memory (DRAM).

[0050] Example 3

[0051] This embodiment provides a computer device, such as Figure 5 As shown, it includes a processor and a storage, the storage stores program code, and the processor executes the program code to execute the underground interval equipment limit detection method of Example 1.

[0052] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0053] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for detecting the clearance of underground equipment based on BIM, characterized in that: Includes steps: Obtaining interval measurement data of the tunnel; Modeling is performed in BIM software according to the measurement data to obtain a three-dimensional solid model of the measurement data; Obtain design parameters, limit values ​​and superelevation parameters of the track; According to the design parameters, three-dimensionally arrange the equipment in the three-dimensional solid model; When it is detected that the device does not infringe the limit, output the detection result; When it is detected that the device has violated the limit, the design parameters are re-acquired, and the device is rearranged in three dimensions in the three-dimensional solid model until it is detected that the device has not violated the limit and the violation data is output, or the design parameters can no longer be modified and the violation data is output.

2. The underground section equipment clearance detection method according to claim 1 is characterized in that: The step of obtaining the interval measurement data of the tunnel includes: The key point information is obtained through the total station to obtain the interval measurement data.

3. The underground section equipment clearance detection method according to claim 1 or 2, characterized in that: After obtaining the interval measurement data, the method further includes the following steps: The measurement data is subjected to coordinate transformation to obtain the three-dimensional coordinate value of each key point based on a rectangular coordinate system.

4. The underground section equipment clearance detection method according to claim 1 or 2, characterized in that: The step of performing three-dimensional arrangement of equipment in the three-dimensional solid model according to the design parameters comprises: Get the layout rules; The position of the device is determined according to the arrangement rule, and the device is arranged in the three-dimensional solid model.

5. A computer-readable storage medium, characterized in that: The readable storage medium stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to implement the underground interval equipment limit detection method as described in any one of claims 1 to 4.

6. A computer device, characterized in that: The computer device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to implement the underground interval equipment limit detection method as described in any one of claims 1 to 4.

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