A BIM-based subway tunnel engineering collaborative management method and system

Abstract

The application relates to the technical field of tunnel engineering monitoring, in particular to a subway tunnel engineering cooperative management method and system based on BIM. The subway tunnel engineering cooperative management method based on BIM comprises the following steps: S1, constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of subway tunnel engineering according to subway tunnel engineering design data; S2, acquiring municipal pipe network data and collecting underground pipeline data in real time, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data; S3, acquiring construction personnel information, and performing intersection detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection and evaluation result; and S4, generating a three-dimensional pipeline state map based on the detection and evaluation result and the three-dimensional underground pipeline map. The application can monitor the state of underground pipelines in real time, and improve the safety and accuracy of the construction process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel engineering detection, and particularly relates to a subway tunnel engineering collaborative management method and system based on BIM. BACKGROUND

[0002] In the construction of subway tunnel engineering, especially in urban central areas, the construction process often faces the serious challenge of conflict with the complex underground pipe network. Accidents such as gas leakage, water supply interruption or communication paralysis caused by pipeline breakage occur from time to time. The main reason for this problem is that the traditional management method is difficult to accurately predict and assess the spatial conflict and safety risk between the tunnel structure and the existing underground pipeline before construction. At present, the technical solutions commonly used in the industry mainly include manual comparison and analysis relying on two-dimensional design drawings, or static three-dimensional display using basic BIM models. However, these existing technologies have significant defects: two-dimensional drawings cannot intuitively reflect the three-dimensional intersection relationship in three-dimensional space, and are prone to misjudgment; static BIM models lack the ability to perceive the real-time state of the pipeline and the quantitative assessment of the dynamic construction impact, and the risk assessment remains at the qualitative level, which is not accurate enough. Therefore, there is an urgent need for a subway tunnel engineering collaborative management method and system based on BIM, which can break down the information barriers between design, construction and management stages, and improve the construction efficiency of subway tunnel engineering. SUMMARY

[0003] In order to overcome the shortcomings of the prior art that it is difficult to perceive the risk of underground pipeline in real time, the present application provides a subway tunnel engineering collaborative management method and system based on BIM.

[0004] The technical implementation scheme of the present application is: a subway tunnel engineering collaborative management method based on BIM, comprising the following steps:

[0005] S1: constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of subway tunnel engineering according to subway tunnel engineering design data;

[0006] S2: acquiring municipal pipe network data and real-time collecting underground pipeline data, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data;

[0007] S3: acquiring construction personnel information, and performing conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection and evaluation result;

[0008] S4: generating a three-dimensional pipeline state map based on the detection and evaluation result and the three-dimensional underground pipeline map;

[0009] S5: assisting engineering personnel in making construction decisions based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map.

[0010] Preferably, the three-dimensional subway tunnel BIM model covering the whole life cycle of the subway tunnel engineering is constructed according to the subway tunnel engineering design data, and the subway tunnel engineering design data comprises design drawings, geological survey reports and civil engineering drawings, and the three-dimensional subway tunnel BIM model is constructed according to the design drawings, the geological survey reports and the civil engineering drawings in the tunnel design stage.

[0011] Preferably, the municipal pipe network data and the underground pipeline data are acquired, and a three-dimensional underground pipeline map is generated based on the municipal pipe network data and the underground pipeline data, and the municipal pipe network data comprises underground pipeline positions, underground pipeline ownerships, underground pipeline types, real-time pressures, standard pressures, service years and design life spans, sensors deployed in the environment are used to detect construction positions and accurate three-dimensional positions of the underground pipelines, connectivity analysis is performed on the underground pipelines to obtain underground pipeline connectivity user numbers, the accurate three-dimensional positions of the underground pipelines are used to correct the underground pipeline positions, and the three-dimensional underground pipeline map is constructed in combination with the underground pipeline connectivity user numbers, the underground pipeline types, the real-time pressures, the standard pressures, the service years and the design life spans.

[0012] Preferably, the construction personnel information is acquired, and a detection evaluation result is obtained through conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map, and the construction personnel information comprises senior construction personnel numbers and construction personnel numbers, the accurate three-dimensional positions of underground pipelines within a preset range outside a tunnel structure are acquired through the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map, the underground pipelines intersecting with the tunnel structure are detected according to the accurate three-dimensional positions of the underground pipelines, the underground pipelines intersecting with the tunnel structure are marked as a first type of pipeline, risk assessment is performed on the underground pipelines without intersection to obtain a risk assessment result, the underground pipelines are divided into unit pipeline segments according to the accurate three-dimensional positions of the underground pipelines to obtain three-dimensional positions of each unit pipeline segment, construction position-unit pipeline segment distances are calculated according to the construction positions and the three-dimensional positions of the unit pipeline segments, the risk assessment result of each unit pipeline segment is calculated based on the construction position-unit pipeline segment distances, the construction personnel information and the three-dimensional underground pipeline map, a maximum value of the risk assessment result of the unit pipeline segment is taken as a risk assessment result of the underground pipeline, the underground pipelines with the risk assessment result greater than or equal to a preset threshold value are marked as a second type of pipeline, and the pipelines with the risk assessment result less than the preset threshold value are marked as a third type of pipeline.

[0013] Preferably, the pipeline without spatial conflict is subjected to risk assessment to obtain a pipeline risk assessment result, comprising: obtaining a construction plan from the three-dimensional subway tunnel BIM model, the construction plan comprising a crushing type construction method and a predicted construction frequency and a non-crushing type construction method and a predicted construction time length, calculating a senior construction personnel proportion based on the senior construction personnel quantity and the construction personnel quantity, and calculating a construction influence factor based on the senior construction personnel proportion and the construction plan by using a construction influence factor calculation formula, the construction influence factor calculation formula being:

[0014] In the formula, is the construction influence factor, is a non-crushing type construction method coefficient, is the predicted construction time length, is the senior construction personnel proportion, is a crushing type construction method coefficient, is the predicted construction frequency.

[0015] Preferably, the risk assessment result of each unit pipeline segment is calculated based on the construction position and unit pipeline segment distance, construction personnel information and three-dimensional underground pipeline map, comprising: calculating the risk assessment result of each unit pipeline segment by using a risk assessment formula based on the construction influence factor, construction position and unit pipeline segment distance, underground pipeline type, real-time pressure, standard pressure, service life and design life,

[0016] The risk assessment formula is:

[0017] In the formula, is the risk assessment result, is the number of underground pipeline connected users, is the real-time pressure, is the standard pressure, is the service life, is the design life, is the construction position and unit pipeline segment distance, is an underground pipeline type coefficient, is a construction weight coefficient, is a non-zero constant.

[0018] Preferably, the three-dimensional pipeline state map is generated based on the detection assessment result and the three-dimensional underground pipeline map, comprising: constructing a three-dimensional pipeline state map based on the positions of the underground pipeline ownership, the first type pipeline, the second type pipeline and the third type pipeline and the three-dimensional underground pipeline map, setting the states of the first type pipeline and the second type pipeline as to be improved, and setting the state of the third type pipeline as to be maintained as originally.

[0019] Preferably, the construction decision making based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state diagram assists the engineering personnel to make construction decisions, including: obtaining the positions and ownerships of the first type of pipeline and the second type of pipeline through the three-dimensional pipeline state diagram, and calculating the length of the unit pipeline segment in the second type of pipeline whose risk assessment result is greater than or equal to a preset threshold to assist the supervisor in formulating a pipeline relocation plan, and integrating the construction position, the second type of pipeline position and the third type of pipeline position and the risk assessment result of the unit pipeline segment into the three-dimensional subway tunnel BIM model to assist the construction personnel in construction.

[0020] Preferably, the construction position, the second type of pipeline position and the third type of pipeline position and the risk assessment result of the unit pipeline segment are integrated into the three-dimensional subway tunnel BIM model to assist the construction personnel in construction, including: color coding visualization according to the risk assessment result of the unit pipeline segment, integrating the construction position, the unit pipeline segment position, the risk assessment result and the color into the three-dimensional subway tunnel BIM model, and displaying the construction personnel in real time through an AR device to assist the construction.

[0021] A subway tunnel engineering collaborative management system based on BIM, comprising:

[0022] A BIM model construction module: constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of a subway tunnel engineering according to subway tunnel engineering design data;

[0023] An underground pipeline map generation module: obtaining municipal pipe network data and collecting underground pipeline data in real time, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data;

[0024] A detection and evaluation module: obtaining construction personnel information, and performing conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection and evaluation result;

[0025] A pipeline state diagram generation module: generating a three-dimensional pipeline state diagram based on the detection and evaluation result and the three-dimensional underground pipeline map;

[0026] An auxiliary decision making module: assisting engineering personnel in making construction decisions based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state diagram.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] The application can accurately detect the intersection between the tunnel structure and the underground pipeline before the construction starts by integrating the three-dimensional subway tunnel BIM model with the three-dimensional underground pipeline map fused with real-time collected data, and changes the traditional post-discovery and passive processing into accurate prediction and active avoidance in advance, thereby fundamentally avoiding major safety accidents and economic losses caused by pipeline breakage.

[0029] The application creates an immersive construction guidance environment by deeply fusing the construction position and pipeline risk information with the BIM model and visualizing by color coding, and then projecting in real time to the field construction personnel by the AR device. This enables the construction personnel to clearly "see" the unknown risks underground, thereby actively avoiding high-risk areas in operation, realizes the leap from "drawing guidance" to "three-dimensional perspective guidance", reduces the risk of misoperation in the construction process, and ensures the safety of personnel and pipelines.

[0030] The application covers multiple links from design, pre-construction evaluation, construction guidance to pipeline relocation management, and builds an integrated collaborative management platform with BIM model as the core and data-driven. The information barriers between design, construction and management stages are broken, the seamless flow and sharing of information between various participants are realized, and the management efficiency and overall construction quality of the entire subway tunnel engineering project are improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A BIM-based subway tunnel engineering collaborative management method flowchart is provided in the application;

[0032] Figure 2 A BIM-based subway tunnel engineering collaborative management system structure diagram is provided in the application;

[0033] Figure 3 A subway tunnel and underground pipeline position schematic diagram is provided in the application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0035] Embodiment 1: A BIM-based subway tunnel engineering collaborative management method, as shown in Figure 1 and Figure 3 , comprising the following steps:

[0036] S1: constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of a subway tunnel project according to subway tunnel project design data;

[0037] The subway tunnel project design data includes design drawings, geological survey reports, and civil engineering drawings. In the tunnel design stage, a three-dimensional subway tunnel BIM model is constructed according to the design drawings, geological survey reports, and civil engineering drawings.

[0038] It should be further explained that complete subway tunnel project design data is collected, which constitutes the basis for model establishment, mainly including design drawings, geological survey reports, and civil engineering drawings. Design drawings carry core design elements such as the spatial form, scale parameters, and component connection relationship of the tunnel main structure. The geological survey report presents the geological background of the project area, and the civil engineering drawings improve the tunnel support system, lining form selection, and specific construction methods such as shield, open excavation, and pipe jacking, and other special engineering technical details. Based on the aforementioned design drawings, geological survey reports, and civil engineering drawings, the generation process of the three-dimensional subway tunnel BIM model is started. First, data analysis is performed on the two-dimensional design drawings and civil engineering drawings to extract key geometric elements and component features, and then parameterized modeling means are used to initially construct the three-dimensional geometric profile of the tunnel. Subsequently, the stratum data in the geological survey report is coupled with the tunnel geometric model to form a three-dimensional comprehensive model containing the surrounding geological structure, thereby accurately depicting the position of the tunnel facility in the environment. The generated three-dimensional BIM model realizes comprehensive coverage of the whole life cycle of the subway tunnel project. In the planning and design period, it is used for multi-scheme comparison and design parameter optimization. During the project construction period, it supports construction process simulation, material consumption calculation, and potential intersection early warning. It continuously provides decision support for equipment operation and maintenance, resource allocation, and emergency response.

[0039] S2: acquiring municipal pipe network data and collecting underground pipeline data in real time, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data;

[0040] The municipal pipe network data includes underground pipeline position, underground pipeline ownership, underground pipeline type, real-time pressure, standard pressure, service life, and design life. The accurate three-dimensional position of the construction position and the underground pipeline is detected by sensors deployed in the environment, the connectivity of the underground pipeline is analyzed to obtain the number of underground pipeline connected users, the accurate three-dimensional position of the underground pipeline is corrected based on the accurate three-dimensional position of the underground pipeline, and the three-dimensional underground pipeline map is constructed in combination with the number of underground pipeline connected users, the underground pipeline type, the real-time pressure, the standard pressure, the service life, and the design life.

[0041] It is further noted that the data acquisition involves two parallel input sources. The archival data provided by the municipal authority constitutes the basic information layer, which records the basic coordinate information of the underground pipeline location, the unit ownership information of the underground pipeline ownership, the real-time pressure monitoring value, the standard pressure rating parameter, the use year record, the design life index, and the underground pipeline type such as gas, water supply, communication and drainage. At the same time, a plurality of groups of sensing devices distributed in the engineering site continuously capture the actual layout form of the underground pipeline. These detection devices generate accurate three-dimensional coordinates of the underground pipeline in the construction area through active scanning, providing a spatial reference for subsequent modeling.

[0042] First, the pipe network connectivity analysis is implemented. Based on the topological relationship calculation, the network connection structure and medium flow direction characteristics of each pipeline segment are determined, and the user scale data carried by each pipeline is derived. This index directly reflects the functional importance of a specific pipeline in the urban infrastructure system. Then, the high-precision three-dimensional coordinates captured by the sensor are spatially registered with the original pipeline position recorded in the municipal archives, and the positional deviation existing in the archival information is calibrated and compensated through the measured data. In the three-dimensional underground pipeline map construction link, all verified data elements are integrated and processed. The generated three-dimensional underground pipeline map not only presents the calibrated pipeline spatial distribution trajectory, but also embeds the social value parameter of the pipeline service user scale, and is associated with the pipeline type characteristics, real-time pressure dynamics, standard pressure benchmark, use year record and design life multiple attribute dimensions. These structured data are reconstructed through a three-dimensional graphics engine to realize spatial visualization, forming a digital mirror of the underground pipe network containing rich semantic information. The three-dimensional underground pipeline model formed thereby effectively unifies the static archival data and dynamic monitoring results, not only inheriting the complete attribute system of the municipal pipe network data, but also integrating the spatial precision advantage obtained by field detection.

[0043] S3: Obtain construction personnel information, and perform conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model, and the three-dimensional underground pipeline map to obtain a detection and assessment result;

[0044] The construction personnel information includes the number of senior construction personnel and the number of construction personnel. The accurate three-dimensional locations of underground pipelines within a preset range outside the tunnel structure are obtained using the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map. Based on the accurate three-dimensional locations of the underground pipelines, underground pipelines intersecting with the tunnel structure are detected. Underground pipelines intersecting with the tunnel structure are marked as Class I pipelines. Risk assessments are performed on underground pipelines that do not intersect with the tunnel structure to obtain risk assessment results. Based on the accurate three-dimensional locations of the underground pipelines, the underground pipelines are divided into unit pipeline segments to obtain the three-dimensional location of each unit pipeline segment. The distance between the construction location and the unit pipeline segment is calculated based on the three-dimensional locations of the construction location and the unit pipeline segment. Based on the distance between the construction location and the unit pipeline segment, the construction personnel information, and the three-dimensional underground pipeline map, the risk assessment result for each unit pipeline segment is calculated. The maximum value of the risk assessment result for each unit pipeline segment is taken as the risk assessment result for the underground pipeline in question. Underground pipelines with risk assessment results greater than or equal to a preset threshold are marked as Class II pipelines, and pipelines with risk assessment results less than the preset threshold are marked as Class III pipelines.

[0045] The construction plan is obtained through the 3D subway tunnel BIM model. The construction plan includes fracturing construction methods and their expected number of operations, and non-fracturing construction methods and their expected construction duration. The proportion of senior construction personnel is calculated based on the number of senior construction workers and the total number of construction workers. Based on the proportion of senior construction personnel and the construction plan, the construction impact factor is calculated using the construction impact factor calculation formula. The construction impact factor calculation formula is as follows:

[0046] In the formula, As a construction influencing factor, For non-fragmentation construction methods, To estimate the construction time, The proportion of senior construction workers, For crushing construction methods, This represents the estimated number of construction operations.

[0047] Based on the aforementioned construction influencing factors, distance between the construction location and the unit pipeline segment, underground pipeline type, real-time pressure, standard pressure, service life, and design life, the risk assessment result for each unit pipeline segment is calculated using a risk assessment formula.

[0048] The risk assessment formula is as follows:

[0049] In the formula, Based on the risk assessment results, The number of users connected by underground pipelines. For real-time pressure, For standard pressure, for the number of years in use, for the design life, for the distance between the construction site and the unit pipeline segment, for the type of underground pipeline, for the construction weight coefficient, for the non-zero constant.

[0050] It should be further explained that the embodiment discloses an underground pipeline risk evaluation method integrating personnel qualification, engineering model and pipe network data. The technical scheme realizes accurate identification and hierarchical management of various pipelines through the construction of multiple analysis mechanisms. In the initial stage of implementation, the personnel composition data of the construction team needs to be collected, specifically covering two indicators of the number of senior construction personnel and the total number of construction personnel. At the same time, the construction plan details are analyzed from the established three-dimensional subway tunnel BIM model, which clearly records the expected number of times of the broken construction method and the planned operation time of the non-broken construction method. The broken construction method includes controlled breaking, smooth breaking, pre-splitting breaking and differential breaking, and the non-broken construction method includes shield method, open cut method and mining method. Based on the experience of field experts and engineering practice, the construction method coefficient is set for different construction methods. By calculating the proportion of senior construction personnel in the total number of team members, the professional ability level of the construction team can be objectively measured. After entering the conflict detection link, relying on the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map, all underground pipeline three-dimensional space coordinates within the set space range outside the tunnel contour are obtained, such as all underground pipelines within 100 meters around the tunnel result. The spatial geometry analysis technology is used to identify the pipeline units intersecting with the tunnel structure, such as Figure 3As shown, such pipelines with direct spatial conflicts are uniformly defined as the first category of pipelines and need to be treated as priority objects. For pipeline units that do not form spatial intersections with the tunnel structure, a risk assessment mechanism is enabled. This mechanism first discretizes the pipeline into unit pipeline segments based on its precise three-dimensional coordinates and determines the spatial positioning of each segment. By calculating the spatial distance between the construction area and each unit pipeline segment, the core parameter of the distance between the construction location and the unit pipeline segment is obtained. In the risk quantification stage, a construction impact factor calculation model is constructed to represent the potential impact of different construction processes. After normalizing the expected number of constructions and the expected construction duration to eliminate dimensional effects, the construction impact factor is calculated by combining the coefficient of the breaking type construction method and the coefficient of the non-breaking type construction method. According to the process category determined by the construction plan, different calculation rules are applied, and this differentiated calculation strategy effectively captures the risk characteristics of different construction methods. Based on the construction impact factor, the distance between the construction location and the unit pipeline segment, the type of underground pipeline, the real-time pressure reading, the standard pressure value, the used years, and the design service life are normalized to eliminate dimensional differences. The risk evaluation formula is used to calculate the risk evaluation value of each unit pipeline segment. This calculation formula considers multiple factors such as the number of pipeline service users, the operating pressure state, the pipeline aging condition, and the construction disturbance intensity. The number of service users reflects the social importance of the pipeline, the ratio of real-time pressure to standard pressure reflects the operating load condition, the ratio of used years to design life reflects the pipeline aging degree, and the combination of construction impact factor and spatial distance parameter quantifies the spatio-temporal impact intensity of construction activities. The maximum value of the risk value of each unit pipeline segment is selected as the final risk assessment result of the corresponding pipeline. Referring to the pre-set risk threshold, pipelines with evaluation results reaching or exceeding the threshold limit are classified as the second category of pipelines, and the rest are classified as the third category of pipelines. By establishing this hierarchical evaluation system, a complete pipeline evaluation framework from explicit spatial conflicts to implicit risk levels is formed. For example, assuming the pre-set threshold is 60, the number of senior construction personnel is 5, the total number of construction personnel is 10, the proportion of senior construction personnel is 0.5, the construction method is open-cut method (non-breaking type), the expected construction duration is 10 days, the non-breaking type construction method coefficient is 0.01, the construction impact factor is calculated as 0.0667, and a communication pipeline is divided into a unit pipeline segment. The underground pipeline type coefficient is 0.8, the number of service users is 50, the service life is 5 years, the design life is 50 years, the distance between the construction location and the unit pipeline segment is 10 meters, the real-time pressure is 0.1 MPa, the standard pressure is 0.5 MPa, and the non-zero constant is 0.1. The risk evaluation result is calculated as 53.9967, which is less than 60, so the pipeline segment is low-risk. This detection and evaluation method integrates personnel quality parameters, construction plan elements, and spatial positioning information to construct a dynamic risk assessment system that adapts to complex engineering environments.This solution not only ensures the accuracy of risk identification, but also improves the pertinence and effectiveness of underground pipeline protection measures, providing important technical support for tunnel engineering safety construction.

[0051] S4: generating a three-dimensional pipeline state map based on the detection evaluation results and the three-dimensional underground pipeline map;

[0052] Based on the location of the underground pipeline ownership, the first type of pipeline, the second type of pipeline and the third type of pipeline and the three-dimensional underground pipeline map, a three-dimensional pipeline state map is constructed, the state of the first type of pipeline and the second type of pipeline is set to be relocated, and the state of the third type of pipeline is set to maintain the original state.

[0053] It should be further explained that in the process of constructing the three-dimensional pipeline state map, first, the multi-dimensional data from the previous analysis is integrated. These data include underground pipeline ownership information, first type of pipeline spatial distribution data, second type of pipeline spatial distribution data, third type of pipeline spatial distribution data, and complete pipeline network spatial topological relationship contained in the original three-dimensional underground pipeline map. By integrating these elements, a comprehensive three-dimensional model containing ownership relationship and risk classification is formed. In the state labeling link, differentiated state settings are implemented according to the pipeline classification results. For the first type of pipeline and the second type of pipeline that have been marked, the state is uniformly set to be relocated. This state setting indicates that these pipelines need to be adjusted in position or the protection measures need to be improved in the subsequent construction process. The first type of pipeline must be relocated due to direct intersection, and the second type of pipeline needs to take intervention measures due to the risk assessment result reaching the preset threshold value in the process of constructing the subway tunnel. For the third type of pipeline that has been marked, the state is set to maintain the original state. This state setting indicates that this type of pipeline can maintain its original state under the current construction conditions and the risk assessment result does not exceed the preset safety threshold. In the process of generating the three-dimensional pipeline state map, all spatial reference information in the original three-dimensional underground pipeline map is preserved, ensuring accurate expression of pipeline location. At the same time, by introducing underground pipeline ownership information, each pipeline segment can be traced back to the specific management responsibility unit, providing convenience for subsequent coordination and communication. The spatial distribution data of various types of pipelines are distinguished by different visualization elements in the map, forming an intuitive pipeline classification display effect. The three-dimensional pipeline state map clearly distinguishes between pipelines to be relocated and pipelines to maintain the original state, providing clear operation guidance for engineering management personnel and providing direct technical basis for subsequent pipeline relocation plan formulation and construction site management.

[0054] S5: assisting engineering personnel in making construction decisions based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map.

[0055] The positions and rights of the first type of pipeline and the second type of pipeline are obtained through a three-dimensional pipeline state diagram, and the length of a unit pipeline segment in the second type of pipeline whose risk assessment result is greater than or equal to a preset threshold is calculated to assist a supervisor in formulating a pipeline relocation plan. The construction position, the position of the second type of pipeline, the position of the third type of pipeline, and the risk assessment result of the unit pipeline segment are integrated into the three-dimensional subway tunnel BIM model to assist a construction worker in construction.

[0056] The construction position, the position of the unit pipeline segment, the risk assessment result, and the color are integrated into the three-dimensional subway tunnel BIM model, and are displayed in real time to a construction worker through an AR device, thereby assisting the construction worker.

[0057] It needs to be further explained that by deeply integrating the analysis model with the field operation, targeted decision support is provided for engineering personnel in different roles. At the level of supervision decision support, first, the accurate spatial distribution of the first type of pipeline and the second type of pipeline and the corresponding right information are obtained through a three-dimensional pipeline state diagram. Based on these data, the cumulative length of those unit pipeline segments in the second type of pipeline whose risk assessment result is greater than or equal to a preset threshold is further calculated. The cumulative length provides a key quantitative basis for the supervisor in formulating a pipeline relocation plan, and in combination with the pipeline right information, the responsibility subject can be clearly coordinated, and according to the distribution range of the risk pipeline segment, the relocation timing and the construction range can be scientifically planned, thereby forming an underground pipeline relocation scheme.

[0058] At the level of construction guidance implementation, the construction position information, the position data of the second type of pipeline, the position information of the third type of pipeline, and the risk assessment result of each unit pipeline segment are comprehensively integrated. These multi-dimensional data are unified and integrated into the three-dimensional subway tunnel BIM model. In order to realize more intuitive risk communication, color coding visualization is performed according to the risk assessment result of the unit pipeline segment, and different colors are used to represent different levels of risk states. The construction position, the position of the unit pipeline segment, the risk assessment result, and the corresponding color coding are jointly integrated into the three-dimensional subway tunnel BIM model, and are projected and displayed in real time to the field construction worker through an augmented reality device. This implementation enables the construction worker to directly perceive the risk distribution condition of the hidden underground pipeline in the actual operation environment. The color coding system provides an instant risk level prompt, and the position marking of the unit pipeline segment points out the area that needs special attention. Through the real-time display function of the augmented reality technology, the construction worker can accurately identify the high-risk area and take corresponding measures, effectively avoiding damage to the existing pipeline during construction, and improving the safety control level of the construction site.

[0059] Embodiment 2: Based on the embodiment 1, a BIM-based subway tunnel engineering collaborative management system, as shown in Figure 2 , comprises:

[0060] a BIM model construction module configured to construct a three-dimensional subway tunnel BIM model covering a whole life cycle of a subway tunnel engineering according to subway tunnel engineering design data;

[0061] an underground pipeline map generation module configured to acquire municipal pipe network data and collect underground pipeline data in real time, and generate a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data;

[0062] a detection and evaluation module configured to acquire construction personnel information, and perform conflict detection and risk evaluation based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection and evaluation result;

[0063] a pipeline state map generation module configured to generate a three-dimensional pipeline state map based on the detection and evaluation result and the three-dimensional underground pipeline map;

[0064] an auxiliary decision-making module configured to assist an engineering personnel in making a construction decision based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A BIM-based subway tunnel engineering collaborative management method, characterized in that, The method comprises the following steps: S1: constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of a subway tunnel project according to subway tunnel project design data; S2: acquiring municipal pipe network data and collecting underground pipeline data in real time, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data; S3: acquiring construction personnel information, and performing conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection and assessment result, including: the construction personnel information comprises the number of senior construction personnel and the number of construction personnel, the accurate three-dimensional position of underground pipelines within a preset range outside a tunnel structure is obtained through the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map, the underground pipelines intersecting with the tunnel structure are marked as a first type of pipeline according to the accurate three-dimensional position of the underground pipelines intersecting with the tunnel structure, the risk assessment result is obtained by performing risk assessment on the underground pipelines not intersecting with the tunnel structure, the three-dimensional position of each unit pipeline segment is obtained by dividing the underground pipelines into unit pipeline segments according to the accurate three-dimensional position of the underground pipelines, the distance between the construction position and the unit pipeline segment is calculated according to the construction position and the three-dimensional position of the unit pipeline segment, the risk assessment result of each unit pipeline segment is calculated based on the distance between the construction position and the unit pipeline segment, the construction personnel information and the three-dimensional underground pipeline map, the maximum value of the risk assessment result of the unit pipeline segment is taken as the risk assessment result of the underground pipeline, the underground pipelines with the risk assessment result greater than or equal to a preset threshold value are marked as a second type of pipeline, and the pipelines with the risk assessment result less than the preset threshold value are marked as a third type of pipeline; S4: generating a three-dimensional pipeline state map based on the detection and assessment result and the three-dimensional underground pipeline map; S5: assisting an engineering personnel to make a construction decision based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map; The risk assessment result of the pipelines not having spatial conflicts is obtained by performing risk assessment on the pipelines, including: a construction plan is obtained through the three-dimensional subway tunnel BIM model, the construction plan comprises a broken construction method and a predicted construction number and a non-broken construction method and a predicted construction time length, a senior construction personnel proportion is calculated based on the number of senior construction personnel and the number of construction personnel, and a construction influence factor is calculated according to the senior construction personnel proportion and the construction plan by using a construction influence factor calculation formula, the construction influence factor calculation formula is: wherein, is a construction impact factor, is a non-crushing construction method coefficient, is a predicted construction duration, is a senior construction personnel ratio, is a crushing construction method coefficient, is a predicted construction frequency; The risk assessment result of each unit pipeline segment is calculated based on the distance between the construction position and the unit pipeline segment, the construction personnel information and the three-dimensional underground pipeline map, including: the risk assessment result of each unit pipeline segment is calculated based on the construction influence factor, the distance between the construction position and the unit pipeline segment, the type of underground pipeline, real-time pressure, standard pressure, service life and design life by using a risk assessment formula, and the risk assessment formula is: wherein, is the risk assessment result, is the number of connected users of the underground pipeline, is the real-time pressure, is the standard pressure, is the service life, is the design life, is the distance between the construction location and the unit pipeline segment, is the underground pipeline type coefficient, is the construction weight coefficient, is a non-zero constant; Integrate the construction position, the second type pipeline position, the third type pipeline position and the risk assessment result of the unit pipeline segment into the three-dimensional subway tunnel BIM model to assist the construction personnel in construction, including: color coding visualization according to the risk assessment result of the unit pipeline segment, integrating the construction position, the unit pipeline segment position, the risk assessment result and the color into the three-dimensional subway tunnel BIM model, and displaying the construction personnel in real time through an AR device to assist the construction.

2. The BIM-based subway tunnel engineering collaborative management method according to claim 1, characterized in that, The three-dimensional subway tunnel BIM model covering the whole life cycle of the subway tunnel project is constructed according to the subway tunnel engineering design data, including: the subway tunnel engineering design data includes design drawings, geological survey reports and civil engineering drawings, and the three-dimensional subway tunnel BIM model is constructed according to the design drawings, the geological survey reports and the civil engineering drawings in the tunnel design stage.

3. The BIM-based subway tunnel engineering collaborative management method according to claim 1, characterized in that, The three-dimensional underground pipeline map is generated based on the municipal pipe network data and the underground pipeline data, including: the municipal pipe network data includes underground pipeline position, underground pipeline ownership, underground pipeline type, real-time pressure, standard pressure, service life and design life, the accurate three-dimensional position of the construction position and the underground pipeline is detected by the sensor deployed in the environment, the number of underground pipeline connected users is obtained by connectivity analysis of the underground pipeline, the underground pipeline position is corrected based on the accurate three-dimensional position of the underground pipeline, and the three-dimensional underground pipeline map is constructed in combination with the number of underground pipeline connected users, the underground pipeline type, the real-time pressure, the standard pressure, the service life and the design life.

4. The BIM-based subway tunnel engineering collaborative management method according to claim 3, characterized in that, The three-dimensional pipeline state map is generated based on the detection evaluation result and the three-dimensional underground pipeline map, including: the three-dimensional pipeline state map is constructed based on the underground pipeline ownership, the first type pipeline, the second type pipeline and the third type pipeline position and the three-dimensional underground pipeline map, the state of the first type pipeline and the second type pipeline is set to be remigrated, and the state of the third type pipeline is set to be maintained as original.

5. The BIM-based subway tunnel engineering collaborative management method according to claim 4, characterized in that, The construction decision of the engineering personnel is assisted based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map, including: the position and the ownership of the first type pipeline and the second type pipeline are obtained through the three-dimensional pipeline state map, and the length of the unit pipeline segment risk assessment result greater than or equal to the preset threshold in the second type pipeline is calculated to assist the supervision personnel in formulating a pipeline remigration plan, and the construction position, the second type pipeline position and the third type pipeline position and the risk assessment result of the unit pipeline segment are integrated into the three-dimensional subway tunnel BIM model to assist the construction personnel in construction.

6. A BIM-based collaborative management system for metro tunnel engineering, which is used to implement the BIM-based collaborative management method for metro tunnel engineering according to any one of claims 1-5, characterized in that, It includes: a BIM model construction module: constructing a three-dimensional subway tunnel BIM model covering the whole life cycle of the subway tunnel project according to subway tunnel engineering design data; an underground pipeline map generation module: acquiring municipal pipe network data and collecting underground pipeline data in real time, and generating a three-dimensional underground pipeline map based on the municipal pipe network data and the underground pipeline data; The detection evaluation module obtains construction personnel information, performs conflict detection and risk assessment based on the construction personnel information, the three-dimensional subway tunnel BIM model and the three-dimensional underground pipeline map to obtain a detection evaluation result; The pipeline state map generation module generates a three-dimensional pipeline state map based on the detection evaluation result and the three-dimensional underground pipeline map; The auxiliary decision-making module assists the engineering personnel in making construction decisions based on the three-dimensional subway tunnel BIM model and the three-dimensional pipeline state map.

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