CN115329443A - BIM technology-based tunnel engineering stress analysis method and system - Google Patents
BIM technology-based tunnel engineering stress analysis method and system Download PDFInfo
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Abstract
The application discloses a BIM technology-based tunnel engineering stress analysis method and system, wherein the method comprises the following steps: collecting engineering data information of an operated tunnel, and constructing a mechanical analysis model based on the data information; constructing a tunnel engineering model based on a BIM technology; establishing a conversion channel between the tunnel engineering model and the mechanical analysis model, and inputting parameters of the tunnel engineering model into the mechanical analysis model; analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model; and displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel. By applying the method, the simulation of the tunnel engineering in the whole engineering period can be realized, the investigation of the stress conditions of different construction stages can be realized by combining a mechanical analysis model, effective data reference is provided for the actual construction period, and the reasonability and the safety of the engineering are improved.
Description
Technical Field
The application belongs to the technical field of tunnel engineering, and particularly relates to a tunnel engineering stress analysis method and system based on a BIM (building information modeling) technology.
Background
The BIM technology is a building information model building technology and is used for building a three-dimensional building model according to information of various building engineering projects. Besides building models can be built by applying the BIM technology, the BIM technology is mainly applied throughout the whole life cycle of a construction project and performs information fusion, so that the transformation to an advanced intensive construction mode is realized.
At present, the application of the BIM technology in the development and utilization of urban underground space in China is in the starting stage. In the aspect of planning, the BIM technology can be utilized to coordinate and cooperate with the overall development of a city macroscopically, and the feasibility of underground space planning is demonstrated by microscopically simulating and analyzing technical indexes; in the aspect of design, a building with good performance is designed by using the BIM technology, the environment can be designed visually, and a complex area can be directly drawn from a model. The work such as detection can provide guarantee for the high-efficient implementation of construction stage. In the aspect of construction, the BIM can simulate construction in the early stage of construction, adjust the electromechanical equipment installation and pipeline installation sequence, improve the installation efficiency and accuracy, analyze the follow-up construction progress, improve the efficiency of project management and determine the optimal construction scheme. In the aspect of operation and maintenance, a building information database formed by BIM can provide guarantee for later operation and maintenance of a building, various related information can be integrated by using a project information integration system to carry out equipment maintenance management and emergency treatment, and the most effective evacuation and escape route of people can be provided under the emergency condition.
However, the model constructed by the BIM software and the mainstream analysis software cannot exchange data well at present, and the application of the BIM technology is greatly restricted. Therefore, how to effectively construct the tunnel engineering model and realize effective exchange of data between the BIM model and the analysis software is a problem that needs to be solved urgently in application and popularization of the BIM technology at present.
Disclosure of Invention
The application provides a tunnel engineering stress analysis method and system based on a BIM technology, and aims to effectively construct a tunnel engineering model and effectively exchange data between the BIM model and analysis software.
In order to achieve the above purpose, the present application provides the following solutions:
a tunnel engineering stress analysis method based on a BIM technology comprises the following steps:
collecting engineering data information of an operated tunnel, and constructing a mechanical analysis model based on the data information;
constructing a tunnel engineering model based on a BIM technology;
establishing a conversion channel between the tunnel engineering model and the mechanical analysis model, and inputting parameters of the tunnel engineering model into the mechanical analysis model;
analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model;
and displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
Preferably, the data information includes: component size information, component material information, site recovery information.
Preferably, the mechanical analysis model includes: a stress model and a material model.
Preferably, revit software is adopted to construct the tunnel engineering model.
Preferably, ABAQUS software is adopted to perform stress analysis on the stress condition of the tunnel engineering model.
Preferably, the method for constructing the conversion channel includes:
deleting the tunnel engineering model to obtain a simplified tunnel engineering model;
exporting the simplified tunnel engineering model to obtain the simplified tunnel engineering model in the SAT data format;
and recovering the simplified tunnel engineering model in the SAT data format to obtain a repair tunnel engineering model.
Preferably, the stress condition includes a stress point condition and a stress cloud picture condition.
The application also provides a tunnel engineering atress analytic system based on BIM technique, includes: the device comprises a digital-to-analog construction module, a model construction module, a conversion module, an analysis module and a display module;
the digital-analog construction module is connected with the conversion module and is used for acquiring data information of operated tunnel engineering and constructing a mechanical analysis model based on the data information;
the model building module is connected with the conversion module and used for building a tunnel engineering model based on a BIM technology;
the conversion module is connected with the analysis module and is used for establishing a conversion channel between the tunnel engineering model and the mechanical analysis model and inputting parameters of the tunnel engineering model into the mechanical analysis model;
the analysis module is connected with the display module and is used for analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model;
the display module is used for displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
The beneficial effect of this application does:
by applying the method, the simulation of the tunnel engineering in the whole engineering period can be realized, the investigation of the stress conditions of different construction stages can be realized by combining a mechanical analysis model, effective data reference is provided for the actual construction period, and the reasonability and the safety of the engineering are improved.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings without any inventive exercise.
Fig. 1 is a schematic flow chart of a tunnel engineering stress analysis method based on the BIM technology in the present application;
fig. 2 is a structural schematic diagram of a tunnel engineering stress analysis system based on the BIM technology in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1, a schematic flow chart of a tunnel engineering stress analysis method based on the BIM technique of the present application is shown, which includes the following steps:
s1, collecting data information of operated tunnel engineering, and constructing a mechanical analysis model based on the data information;
wherein the data information includes: component size information, component material information, site recovery information.
In this embodiment, the supporting structure is used as the stressed main body, and the surrounding rock is used as the load source and the elastic support of the supporting structure. The interaction of the supporting structure of the tunnel with the surrounding rock is achieved by applying constraints to the structure by means of elastic supports. When the bearing capacity of the surrounding rock is stronger, the pressure applied to the supporting structure by the surrounding rock is smaller; therefore, in the present embodiment, the size and material of the supporting member are used as the main indexes for the stress analysis of the supporting structure.
The site recovery comprises the following steps: surrounding rock, groundwater pressure, and additional loads; considering information such as the ground and the surrounding environment after the tunnel is built as additional load; the surrounding rock in the tunnel structure is taken as a main load, and the vertically and horizontally uniformly distributed stress and the horizontally uniformly distributed stress are considered.
The mechanical analysis model comprises: a stress model and a material model.
Constructing a material model based on the size, the material, the elastic modulus, the Poisson ratio, the internal friction angle and the cohesive force of the supporting member;
and calculating the vertically and horizontally uniformly distributed stress of the tunnel surrounding rock by using ABAQUS software. The groundwater pressure is calculated according to the most unfavorable water level. The additional load is divided into a permanent load and a variable load; wherein the permanent load comprises a ground structure; the variable loads mainly include crowd loads and construction loads.
And respectively constructing stress models for the average distribution stress of the surrounding rock, the underground water pressure and the additional load, and superposing to obtain a tunnel stress model.
S2, constructing a tunnel engineering model based on a BIM technology;
and (4) constructing the tunnel engineering model by adopting Revit software.
S3, establishing a conversion channel between the tunnel engineering model and the mechanical analysis model, and inputting parameters of the tunnel engineering model into the mechanical analysis model;
the construction method of the conversion channel comprises the following steps:
deleting the tunnel engineering model, and reserving main body structures in the forms of beams, plates, columns and walls to obtain a simplified tunnel engineering model;
exporting the simplified tunnel engineering model, and storing the exported simplified tunnel engineering model as an SAT data format of an ACIS business kernel to obtain the simplified tunnel engineering model of the SAT data format;
and importing the simplified tunnel engineering model with the SAT data format into ABAQUS for recovery to obtain a repair tunnel engineering model.
S4, analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model;
in this embodiment, the stress condition of the tunnel engineering model is subjected to stress analysis by using ABAQUS software. The ABAQUS software not only provides a plurality of rock-soil material constitutive models and truly reflects the rock-soil characteristics, but also provides a secondary development platform and can flexibly and automatically realize other functions.
The stress condition comprises a stress point condition and a stress cloud picture condition. And inputting all parameters in the actual engineering into the stress model to obtain the stress condition of the tunnel structure.
And S5, displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
In the application, the real data of the operated tunnel needs to be collected in a large quantity, and then mechanical analysis models under different construction conditions are obtained, so that a foundation is provided for subsequent stress analysis. The strong functions of ABAQUS software are combined, real-time analysis and monitoring in the construction stage are realized, and the construction safety and the service quality of the tunnel are ensured.
Example two
As shown in fig. 2, the present application further provides a tunnel engineering stress analysis system based on the BIM technology, which includes: the device comprises a digital-to-analog construction module, a model construction module, a conversion module, an analysis module and a display module;
the digital-to-analog construction module is connected with the conversion module and is used for acquiring data information of the operated tunnel engineering and constructing a mechanical analysis model based on the data information;
the working process of the digital-analog construction module comprises the following steps:
the data information includes: component size information, component material information, and site recovery information.
In this embodiment, the supporting structure is used as the stressed main body, and the surrounding rock is used as the load source and the elastic support of the supporting structure. The interaction of the supporting structure of the tunnel with the surrounding rock is achieved by applying constraints to the structure by means of elastic supports. When the bearing capacity of the surrounding rock is stronger, the pressure applied to the supporting structure by the surrounding rock is smaller; therefore, the size and material of the supporting member are used as the main indexes for the stress analysis of the supporting structure in the embodiment.
The site recovery comprises the following steps: surrounding rock, groundwater pressure, and additional loads; considering information such as the ground and the surrounding environment after the tunnel is built as additional load; the surrounding rock in the tunnel structure is taken as a main load, and the vertically and horizontally uniformly distributed stress and the horizontally uniformly distributed stress are considered.
The mechanical analysis model comprises: a force model and a material model.
Constructing a material model based on the size, the material, the elastic modulus, the Poisson ratio, the internal friction angle and the cohesive force of the supporting member;
and calculating the vertically and horizontally uniform stress of the tunnel surrounding rock by using ABAQUS software. The groundwater pressure is calculated according to the most unfavorable water level. The additional load is divided into a permanent load and a variable load; wherein the permanent load comprises a ground structure; the variable loads mainly include crowd loads and construction loads.
And respectively constructing stress models for the average distribution stress of the surrounding rock, the underground water pressure and the additional load, and superposing to obtain a tunnel stress model.
The model building module is connected with the conversion module and used for building a tunnel engineering model based on the BIM technology;
and the model construction module adopts Revit software to construct the tunnel engineering model.
The conversion module is connected with the analysis module and used for establishing a conversion channel between the tunnel engineering model and the mechanical analysis model and inputting parameters of the tunnel engineering model into the mechanical analysis model;
the working process of the conversion module comprises the following steps: constructing a conversion channel;
the construction method of the conversion channel comprises the following steps:
deleting the tunnel engineering model, and reserving main body structures in the forms of beams, plates, columns and walls to obtain a simplified tunnel engineering model;
exporting the simplified tunnel engineering model, and storing the derived simplified tunnel engineering model as an SAT data format of an ACIS business kernel to obtain the simplified tunnel engineering model in the SAT data format;
and importing the simplified tunnel engineering model with the SAT data format into ABAQUS for recovery to obtain a repair tunnel engineering model.
The analysis module is connected with the display module and is used for analyzing and obtaining the stress condition of the tunnel engineering model based on the parameters of the tunnel engineering model and the mechanical analysis model;
the working process of the analysis module comprises the following steps:
in this embodiment, the stress condition of the tunnel engineering model is subjected to stress analysis by using ABAQUS software. The ABAQUS software not only provides a plurality of rock-soil material constitutive models and truly reflects the rock-soil characteristics, but also provides a secondary development platform and can flexibly and automatically realize other functions.
The stress condition comprises a stress point condition and a stress cloud picture condition. And inputting all parameters in the actual engineering into the stress model to obtain the stress condition of the tunnel structure.
The display module is used for displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
The above-described embodiments are merely illustrative of the preferred embodiments of the present application, and do not limit the scope of the present application, and various modifications and improvements made to the technical solutions of the present application by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope defined by the claims of the present application.
Claims (8)
1. A tunnel engineering stress analysis method based on a BIM technology is characterized by comprising the following steps:
collecting engineering data information of an operated tunnel, and constructing a mechanical analysis model based on the data information;
constructing a tunnel engineering model based on a BIM technology;
establishing a conversion channel between the tunnel engineering model and the mechanical analysis model, and inputting parameters of the tunnel engineering model into the mechanical analysis model;
analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model;
and displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
2. The BIM technology-based tunnel engineering stress analysis method according to claim 1, wherein the data information comprises: component size information, component material information, site recovery information.
3. The BIM technology-based tunneling engineering stress analysis method according to claim 1, wherein the mechanical analysis model comprises: a force model and a material model.
4. The BIM technology-based tunnel engineering stress analysis method according to claim 1, wherein Revit software is adopted to construct the tunnel engineering model.
5. The BIM technology-based tunnel engineering stress analysis method as claimed in claim 1, wherein ABAQUS software is used to perform stress analysis on the stress condition of the tunnel engineering model.
6. The BIM technology-based tunnel engineering stress analysis method as claimed in claim 1, wherein the switching channel construction method comprises:
deleting the tunnel engineering model to obtain a simplified tunnel engineering model;
exporting the simplified tunnel engineering model to obtain the simplified tunnel engineering model in the SAT data format;
and recovering the simplified tunnel engineering model in the SAT data format to obtain a repair tunnel engineering model.
7. The BIM technology-based tunnel engineering stress analysis method according to claim 1, wherein the stress conditions include stress point conditions and stress cloud map conditions.
8. A tunnel engineering stress analysis system based on BIM technology is characterized by comprising: the device comprises a digital-to-analog construction module, a model construction module, a conversion module, an analysis module and a display module;
the digital-analog construction module is connected with the conversion module and is used for acquiring data information of operated tunnel engineering and constructing a mechanical analysis model based on the data information;
the model building module is connected with the conversion module and used for building a tunnel engineering model based on a BIM technology;
the conversion module is connected with the analysis module and used for establishing a conversion channel between the tunnel engineering model and the mechanical analysis model and inputting parameters of the tunnel engineering model into the mechanical analysis model;
the analysis module is connected with the display module and is used for analyzing and obtaining the stress condition of the tunnel engineering model based on the tunnel engineering model parameters and the mechanical analysis model;
the display module is used for displaying the stress condition of the tunnel engineering model in the tunnel engineering model based on the conversion channel.
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Cited By (1)
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| WO2022047970A1 (en) * | 2020-09-01 | 2022-03-10 | 浙江勤业建工集团有限公司 | Bim-based method for simulated calculation of deep foundation pit before construction |
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| CN117150602A (en) * | 2023-07-21 | 2023-12-01 | 重庆大学溧阳智慧城市研究院 | Modularized building mechanics simulation analysis method and system based on BIM |
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