CN112487531A - Method for optimizing subway station earth excavation scheme based on BIM technology - Google Patents
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Abstract
The invention discloses a method for optimizing an earth excavation scheme of a subway station based on a BIM technology, which comprises the following steps: establishing an envelope structure model and a supporting structure model of subway station earthwork excavation according to an original earthwork excavation scheme; importing the enclosure structure model and the support structure model into Fuzor software for integration; simulating excavator construction in the Fuzor software according to an original earth excavation scheme, and performing soft collision conflict inspection on the excavator and the supporting structure model; and optimizing the original earthwork excavation scheme according to the soft collision conflict inspection result. The invention optimizes the earth excavation scheme of the subway station by using the BIM technology, improves the approval rate of the scheme, ensures that the content of the scheme is higher in quality, saves the time for solving disputes and plays an important role in project cost management and control on the aspect of intuitively and effectively developing the coordination relationship between earth excavation and each component of the supporting structure.
Description
Technical Field
The invention relates to the field of subway station earthwork excavation construction, in particular to a method for optimizing a subway station earthwork excavation scheme based on a BIM (building information modeling) technology.
Background
At present, with the continuous development of social economy in China, the construction scale of subway engineering is also continuously enlarged, wherein the writing of an earthwork excavation scheme is indispensable for the construction of a subway station, and technicians can write an earthwork excavation implementation scheme according to drawings and design schemes in the early stage of construction. Great foundation ditch earthwork excavation work can all appear in traditional super large engineering and infrastructure engineering, and often the shape of these deep basal pits is uneven, and the aspect that can not think when working out the earthwork excavation scheme is complete, and the phenomenon that has the deviation with the scheme when can appearing actual construction.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the method for optimizing the subway station earthwork excavation scheme based on the BIM technology, the earlier-stage scheme content is subjected to coordination analysis, insufficient searching is carried out, parameters are optimized, the problems in the traditional construction scheme can be effectively solved, the scheme approval efficiency is improved, the rework is reduced, and the benefit is improved.
The technical scheme adopted by the invention is as follows: a method for optimizing subway station earth excavation scheme based on BIM technology comprises the following steps:
establishing an envelope structure model and a supporting structure model of subway station earthwork excavation according to an original earthwork excavation scheme;
importing the enclosure structure model and the support structure model into Fuzor software for integration;
simulating excavator construction in the Fuzor software according to an original earth excavation scheme, and performing soft collision conflict inspection on the excavator and the supporting structure model;
and optimizing the original earthwork excavation scheme according to the soft collision conflict inspection result.
As an implementation mode of the method, the earth excavation scheme comprises an enclosure scheme before earth excavation and a supporting scheme in earth excavation, the enclosure model is established according to the enclosure scheme, and the supporting structure model is established according to the supporting scheme.
As an embodiment of the method of the present invention, the earth excavation scheme further includes an excavator construction scheme in earth excavation, excavator construction is simulated according to the excavator construction scheme, and an original earth excavation scheme is optimized by adjusting the excavator construction scheme according to a result of the soft collision check.
As an implementation mode of the method, the members in the building envelope model comprise the fender posts and the latticed columns which are arranged in the soil body around the subway station.
As an embodiment of the method, the components in the supporting structure model comprise a steel purlin, steel supports and concrete supports which are arranged in the earth excavation area of the subway station.
As an embodiment of the method of the present invention, adjusting the excavator work plan includes adjusting an excavator position, an excavator turning radius, and an up-down movement amplitude of an excavator bucket.
In the step of checking for soft collision between the excavator and the supporting structure model, whether the excavator collides with a member in the supporting structure model during construction is simulated according to the excavator position, the excavator rotation radius and the vertical movement width of the excavator bucket.
As an implementation manner of the method, the step of optimizing the original earth excavation scheme according to the result of the soft collision conflict check further comprises the steps of circularly simulating excavator construction in the Fuzor software according to the optimized earth excavation scheme, and repeatedly performing the soft collision conflict check on the excavator and the supporting structure model for multiple times until the optimal scheme is obtained.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: the subway station earth excavation scheme is optimized by using the BIM technology, the coordination relationship between earth excavation and each component of the supporting structure is intuitively and effectively developed, the approval rate of the scheme is improved, the content of the scheme is higher in quality, the time for solving disputes is saved, and the important function is played in project cost management and control.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a detailed operation procedure of an embodiment of the method for optimizing the earth excavation scheme of the subway station based on the BIM technology.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Building Information Modeling (BIM) is a three-dimensional Building model established on the basis of various relevant Information data of a construction project, and real Information of a Building is simulated through digital Information. The method has eight characteristics of information completeness, information relevance, information consistency, visualization, coordination, simulation, optimization and graphing. It is not simply to integrate digital information, but is an application of digital information and can be used for a digital method of design, construction, management. At present, in the traditional earthwork excavation process, technicians work out an earthwork excavation implementation scheme according to a design drawing and then in combination with a design scheme, and field construction personnel perform construction according to the scheme when entering a stage of a formal earthwork excavation scheme.
In the traditional method, the problems in the scheme are not easy to find by naked eyes, the phenomenon that the construction cannot be carried out according to the scheme during formal construction is easily caused even if the scheme is approved, and if the construction scheme is required to be carried out according to the requirements of a superior relevant department, the phenomenon that the field and the scheme are inconsistent is caused. The optimization of the earth excavation scheme by using the BIM technology can discover the problem which is not easy to discover in advance, visually see the unreasonable phenomenon in the scheme, and timely adjust the scheme parameters, so that the field corresponds to the scheme one to one, the time for examining and approving the scheme can be saved, and the good guarantee is provided for subsequent construction.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the method for optimizing the earth excavation scheme of the subway station based on the BIM technology in the embodiment of the present invention includes specific operation steps. The method for optimizing the subway station earthwork excavation scheme based on the BIM technology mainly comprises the following operation steps:
step S1: establishing an envelope structure model and a supporting structure model of subway station earthwork excavation according to an original earthwork excavation scheme;
step S2: importing the enclosure structure model and the support structure model into Fuzor software for integration;
step S3: simulating excavator construction in Fuzor software according to an original earthwork excavation scheme, and performing soft collision conflict inspection on the excavator and a supporting structure model;
step S4: and optimizing the original earthwork excavation scheme according to the soft collision conflict inspection result.
The earth excavation scheme mainly comprises a containment scheme before earth excavation, a supporting scheme in earth excavation and an excavator construction scheme in earth excavation. In step S1, an envelope model is created by using the Autodesk Revit modeling software according to the envelope scheme, and a support model is created by using the Autodesk Revit modeling software according to the support scheme. The components in the building envelope model comprise building envelope piles and lattice columns which are arranged in soil bodies around the subway station. The components in the supporting structure model comprise a steel purlin, a steel support and a concrete support which are arranged in an earth excavation area of a subway station, and the supporting structure model has the functions of ensuring the safety of underground structure construction and the surrounding environment of a foundation pit and is a supporting, reinforcing and protecting measure for the side wall of the foundation pit and the surrounding environment.
The Autodesk review software is constructed facing a Building Information Model (BIM), supports visual design, collision detection, construction planning and construction, and simultaneously helps better communication and cooperation with engineers, manufacturers and designs. All changes in the design process can be automatically updated in the related design and documents, so that more coordinated and consistent processes are realized, and reliable design documents are obtained.
In addition, the Autodesk Revit is also a super-strong three-dimensional modeling software, the size is dozens of megabytes, the hardware requirement is relatively low, the Autodesk Revit can be connected with second-generation BIM software plug-ins developed by other companies, the model can be very smoothly modeled by using the Autodesk Revit, and then a high-precision model is exported to be used by conflict checking software.
Further, in step S3, the excavator construction is simulated according to the excavator construction plan in the original earth excavation plan, and in step S4, the original earth excavation plan is optimized by adjusting the excavator construction plan according to the soft collision check result, and the enclosure plan and the support plan in the original earth excavation plan are not generally modified in this step.
In step S2, after the envelope model and the support model built by the autocask Revit software are imported, the Fuzor software matches one position of two different types of models, the support model imported by the autocask Revit software is selected in the Fuzor software by using a selection function, a base point is selected to perform point-to-point measurement, the measurement result has size offset data of three axes x, y, and z, and according to the relative position of each model, three size data x, y, and z below the origin option in the unit of the selection item and the transformed attribute can match the relative positions of the two models to combine the two models into a complete model, thereby completing the integration of the envelope model and the support model. In addition, for convenience of integration, when the envelope model and the supporting structure model are created by using the Autodesk Revit software, the building envelope model and the supporting structure model need to be drawn in the same coordinate system.
In step S3, according to the original excavator construction scheme, a model of the excavator is introduced or generated in Fuzor software, the excavator is placed at a design position, the rotation radius of the excavator, the up-down movement amplitude of the excavator bucket or other relevant parameters are set, then the excavator construction process of the excavator construction at the design position is simulated by using the function of the Fuzor software, and whether the excavator collides with a member in a supporting structure model, such as a steel support or a concrete support, is observed in the process. And completing simulation of the excavation construction process of all excavators at the designed positions in the whole excavator construction scheme and soft collision conflict inspection to obtain a soft collision conflict inspection report.
In step S4, the position of the excavator, the rotation radius of the excavator, the up-down movement range of the excavator bucket or other relevant parameters are adjusted in time according to the structure of the simulation and the soft collision check, so as to obtain the modified original excavator construction scheme.
And then, returning to the step S3 according to the modified excavator construction scheme, circularly simulating excavator construction in Fuzor software, repeatedly carrying out soft collision conflict check on the excavator and a supporting structure model for multiple times until the requirements of relevant specifications and standards are met, exporting a final optimization result picture, inserting the exported picture into the scheme, improving the quick understanding of scheme expression by scheme approvers, and further improving the scheme approval efficiency.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and are all included in the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (8)
1. A method for optimizing subway station earth excavation scheme based on BIM technology is characterized by comprising the following steps:
establishing an envelope structure model and a supporting structure model of subway station earthwork excavation according to an original earthwork excavation scheme;
importing the enclosure structure model and the support structure model into Fuzor software for integration;
simulating excavator construction in the Fuzor software according to an original earth excavation scheme, and performing soft collision conflict inspection on the excavator and the supporting structure model;
and optimizing the original earthwork excavation scheme according to the soft collision conflict inspection result.
2. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 1, wherein: the earth excavation scheme comprises an enclosure scheme before earth excavation and a supporting scheme in earth excavation, the enclosure model is created according to the enclosure scheme, and the supporting structure model is created according to the supporting scheme.
3. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 2, wherein: the earth excavation scheme further comprises an excavator construction scheme in earth excavation, excavator construction is simulated according to the excavator construction scheme, and the original earth excavation scheme is optimized by adjusting the excavator construction scheme according to the soft collision conflict inspection result.
4. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 2, wherein: the components in the enclosure structure model comprise enclosure piles and lattice columns which are arranged in soil bodies around the subway station.
5. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 2, wherein: the components in the supporting structure model comprise a steel purlin, steel supports and concrete supports which are arranged in an earth excavation area of the subway station.
6. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 3, wherein: adjusting the construction scheme of the excavator comprises adjusting the position of the excavator, the rotating radius of the excavator and the up-down moving amplitude of an excavator bucket.
7. The method for optimizing the earthwork excavation scheme of the subway station based on the BIM technology as claimed in claim 6, wherein: and in the step of checking soft collision between the excavator and the supporting structure model, whether the excavator collides with a member in the supporting structure model during construction is simulated according to the position of the excavator, the rotation radius of the excavator and the vertical movement range of the excavator bucket.
8. The method for optimizing the earthwork excavation plan of the subway station based on the BIM technology as claimed in claim 1, wherein: and the step of optimizing the original earth excavation scheme according to the soft collision conflict check result further comprises the steps of circularly simulating the construction of the excavator in the Fuzor software according to the optimized earth excavation scheme, and repeatedly carrying out the soft collision conflict check on the excavator and the supporting structure model for multiple times until the optimal scheme is obtained.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113553644A (en) * | 2021-07-13 | 2021-10-26 | 中国二冶集团有限公司 | Method for optimizing excavation and support of subway station foundation pit based on BIM simulation |
| TWI818280B (en) * | 2021-07-08 | 2023-10-11 | 中興工程顧問股份有限公司 | Automatic analysis and verification of deep excavation engineering and system thereof |
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| CN108842782A (en) * | 2018-07-17 | 2018-11-20 | 中铁九局集团第七工程有限公司 | Based on BIM technology deep pit digging and construction method for supporting |
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- 2020-11-30 CN CN202011370222.4A patent/CN112487531A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108842782A (en) * | 2018-07-17 | 2018-11-20 | 中铁九局集团第七工程有限公司 | Based on BIM technology deep pit digging and construction method for supporting |
Non-Patent Citations (1)
| Title |
|---|
| 陈立新;张静;唐金云;朱智林;袁洲力;: "基于BIM的地铁深基坑支护与土方挖运仿真模拟", 中外建筑, no. 10, pages 164 - 166 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI818280B (en) * | 2021-07-08 | 2023-10-11 | 中興工程顧問股份有限公司 | Automatic analysis and verification of deep excavation engineering and system thereof |
| CN113553644A (en) * | 2021-07-13 | 2021-10-26 | 中国二冶集团有限公司 | Method for optimizing excavation and support of subway station foundation pit based on BIM simulation |
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