Computer-aided roadway intersection point rapid design method

Abstract

The invention discloses a computer-aided rapid design method for a roadway intersection point. The method comprises five steps for realizing efficient design: firstly, constructing a standardized and associated parameter model containing types such as single-track bifurcation and double-track bifurcation; secondly, a design auxiliary system integrating a searching module, a manufacturing module, a parameter editing module and an engineering quantity calculation module serves as a plug-in to be embedded into CAD software; a technician selects a target intersection point type, a system calls a corresponding intersection point data model to automatically form a graph, and a CAD coordinate system and a graph layer are automatically adapted; visual real-time adjustment of key parameters such as roadway width and bifurcation angle is supported, parameter compliance is verified in real time, and early warning is carried out. And finally, automatically calculating engineering quantities such as sectional area, support volume and material consumption based on geometric data of the drawing, and generating a list capable of being updated and exported in real time. In addition, the method can be combined with a BIM three-dimensional visualization technology to optimize design, user-defined drawing uploading and classified management are supported, the method is suitable for roadway intersection point design of underground engineering such as coal mines and metal mines, and design efficiency and accuracy are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sewage treatment, and particularly relates to a computer-aided roadway intersection point rapid design method. BACKGROUND

[0002] The plane roadway intersection point is a key node connecting different roadways in underground engineering, and the design quality thereof directly affects construction safety, transportation efficiency and engineering cost. At present, the design of the plane roadway intersection point in the industry mainly relies on manual drawing by technical personnel in CAD software: the technical personnel need to draw roadway contour lines, track lines, support structures, size annotations and other elements one by one according to design requirements, and form a complete drawing through steps such as multi-segment splicing, coordinate calculation and layer adjustment.

[0003] However, the traditional design method has the following significant defects: A single intersection point drawing, such as the drawing of a double-track oblique angle bifurcation, takes 2-4 hours and involves the accurate positioning of dozens of line segments, and complex types, such as multi-track intersection, take even longer; Manual drawing is prone to size deviations and parameter contradictions, such as mismatched bifurcation angles and curvature radii, and the error rate is more than 15%, and when modified, the associated line segments need to be re-adjusted, which takes more than 50% of the original design time; After the design is completed, the technical personnel need to manually extract the drawing sizes, such as the cross-sectional area and the support thickness, and then calculate the quantities through formulas, which is prone to errors and cannot be updated in real time; The differences in drawing habits of different technical personnel result in inconsistent layers and annotation methods for the same type of drawing, increasing the cost of post-construction briefing and archiving.

[0004] To solve the above problems, a computer-aided design method integrating rapid drawing, parameterized modification and automatic calculation is needed to improve design efficiency and accuracy.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] To solve the above technical problems, the basic idea of the technical solution of the present application is: A computer-aided roadway intersection point rapid design method, comprising the following steps: Step S1, constructing a standardized drawing library, a parameter model and a BIM three-dimensional data: storing the data model of the parameters of the roadway, the cross section and the turnout according to the type of the intersection point, and clearly defining the mandatory constraints and the correlation constraints between the parameters; simultaneously constructing a BIM three-dimensional model, associating a multi-dimensional parameterized model and a three-dimensional visualization template for each type of intersection point, and storing basic data such as surrounding rock grade and construction specifications in combination with mine geological data; Step S2, developing an integrated enhanced design assistance system plug-in: integrating a plug-in system in CAD / BIM software, adding a three-dimensional model generation module, a report automation module, a construction simulation module, a parameter editing module, an engineering quantity calculation module, and other functions on the basis of ordinary design drawing, to realize the joint generation and synchronous update of two-dimensional graphics, three-dimensional models, and statistical reports; Step S3, graphic and three-dimensional model linkage loading: a technician selects a target intersection point type, the system quickly generates two-dimensional graphics and displays a preview, automatically loads the CAD drawing page and adapts the coordinate system and layers; at the same time, a corresponding three-dimensional model is automatically generated based on BIM display needs and is synchronously displayed in a visualization window, supporting real-time switching between two-dimensional and three-dimensional views; Step S4, parameter visualization modification and multi-dimensional synchronous update: adjusting key parameters through a visualization interface, the system automatically updates two-dimensional graphics and three-dimensional models, real-time checks parameter compliance and issues warnings; the modification content is synchronously mapped to statistical reports, and parameter changes and difference values are marked, to ensure the consistency of graphics, models, and report data; Step S5, report generation and construction assistance application: after confirming the parameters, the system automatically generates standardized statistical reports; three-dimensional models can be exported to a construction terminal for use in site construction briefing, process guidance, and safety prediction, and support real-time checking of construction quality and dimensional accuracy based on the model during the construction process.

[0007] As a preferred embodiment of the present application, in step S1, the parameter model is from a parameterized BIM model and an intersection point design knowledge base: an information model suitable for coal mine design needs is established, and a multi-dimensional parameterized model is associated with each intersection point; at the same time, a mine geology and environment knowledge base is constructed to store surrounding rock grade, ground stress, and support preference design rules.

[0008] As a preferred embodiment of the present application, in step S2, an intelligent design system for roadway intersection points is developed and integrated in a CAD or BIM software environment, and the system includes a component calling module, a parameter driving module, a surrounding rock adaptive module, a multi-objective optimization module, a collision detection module, and an engineering quantity and cost dynamic calculation module.

[0009] As a preferred embodiment of the present application, the constraint relationship of the parameter model in step S1 includes: mandatory constraints: parameter values must meet the requirements of industry specifications; correlation constraints: there is a functional relationship between parameters, and when any parameter is modified, the associated parameters are automatically adapted or prompted to adjust suggestions.

[0010] As a preferred embodiment of the present application, the drawing loading module in step S3 has an intelligent layer matching function: reading the layer attributes of the current page of CAD, automatically assigning the elements of the loaded drawing to the corresponding functional layer; if there is no corresponding layer, automatically creating a layer conforming to the industry standard.

[0011] As a preferred embodiment of the present application, the calculation logic of the engineering quantity calculation module in step S5 includes: basic geometric quantity calculation: automatically extracting the cross-sectional area, perimeter and curve segment length of the roadway based on the drawing contour line; support engineering quantity calculation: combining the preset support parameters to calculate the support volume and material consumption; engineering quantity dynamic update: when the drawing parameters are modified, the bill of quantities is recalculated and updated in real time, and the changed items and difference values are marked.

[0012] As a preferred embodiment of the present application, the design auxiliary system further includes a drawing library dynamic updating module: technical personnel can upload custom intersection point drawings, the system automatically analyzes the drawing structure and generates a parameter model, which is included in the drawing library after constraint relationship verification; supporting classification management of the drawing library according to mine types and roadway purposes to improve search accuracy.

[0013] Compared with the prior art, the present application has the following beneficial effects: The present method can complete drawing calling and basic parameter adjustment through keyword search and automatic loading, and the time consumption of complex multi-track intersection type design is reduced by more than 80%, avoiding the invalid labor of repeated drawing of line segments by technical personnel; in the traditional method, error correction of drawings requires re-adjustment of associated line segments, which consumes a lot of time, and the present method automatically associates graphics through a parameter model, which can quickly update the CAD drawing after modification without the need for manual adjustment of line segment coordinates, thereby improving the modification efficiency by 90%; in the traditional method, manual extraction of dimensions and application of formulas to calculate engineering quantities are required after the completion of traditional design, which consumes a lot of time and is prone to errors, and the present method automatically calculates the quantities based on drawing data, quickly generates a list, and updates the results in real time when the parameters are modified, thereby completely eliminating the manual accounting link.

[0014] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In the drawings: Figure 1 A flowchart of a computer-aided rapid design method for roadway intersection points.

[0016] Figure 2 A 90° right-angle intersection point plane contour generated by parameterization of system parameters. DETAILED DESCRIPTION

[0017] For the purposes, technical solutions and advantages of the embodiments of the present application to be clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application.

[0018] A computer-aided-based rapid design method for roadway intersection points, comprising the following steps: Step S1, constructing a standardized drawing library, a parameter model and a BIM three-dimensional data: storing the data model of the parameters of the roadway, the cross section and the turnout according to the type classification of the intersection points, and clearly defining the mandatory constraints and the correlation constraints between the parameters; simultaneously constructing a BIM three-dimensional model, associating a multi-dimensional parameterized model and a three-dimensional visualization template for each type of intersection point, and storing the basic data such as the surrounding rock grade and the construction specification in combination with the mine geological data; Step S2, developing an integrated enhanced design auxiliary system plug-in: integrating the plug-in system in the CAD / BIM software, adding the three-dimensional model generation module, the report automation module and the construction simulation module, the parameter editing, the engineering quantity calculation and other functions on the basis of the ordinary design drawing, realizing the joint generation and the synchronous update of the two-dimensional graphics, the three-dimensional model and the statistical report; Step S3, loading the graphics and the three-dimensional model in linkage: the technical personnel selects the target intersection point type, the system quickly generates the two-dimensional graphics and displays the preview, automatically loads to the CAD drawing page and adapts the coordinate system and the layer; at the same time, the corresponding three-dimensional model is automatically generated based on the BIM display needs, and is synchronously displayed in the visualization window, supporting the real-time switching of the two-dimensional and three-dimensional views; Step S4, parameter visualization modification and multi-dimensional synchronous update: adjusting the key parameters through the visualization interface, the system automatically updating the two-dimensional graphics and the three-dimensional model, real-time checking the parameter compliance and giving early warning; the modification content is synchronously mapped to the statistical report, the parameter variation items and the difference values are marked, and the consistency of the graphics, the model and the report data is ensured; Step S5, report generation and construction auxiliary application: after confirming the parameters, the system automatically generates the standardized statistical report; the three-dimensional model can be exported to the construction terminal, used for the site construction briefing, the process guidance and the safety prediction, and supports the real-time checking of the construction quality and the dimensional accuracy based on the model in the construction process.

[0019] Further, in step S1, the parameter model comes from the construction of the parameterized BIM model and the intersection point design knowledge base: an information model suitable for the design needs of the coal mine is established, and a multi-dimensional parameterized model is associated with each type of intersection point; at the same time, a mine geological and environmental knowledge base is constructed, used for storing the surrounding rock grade, the ground stress and the supporting preference design rules.

[0020] Further, in step S2, an intelligent design system for roadway intersection points is developed and integrated in a CAD or BIM software environment, which includes a component calling module, a parameter driving module, a surrounding rock self-adaptive module, a multi-objective optimization module, a collision detection module, and an engineering quantity and cost dynamic calculation module.

[0021] Further, the constraint relationship of the parameter model in step S1 includes: mandatory constraint: the parameter value must meet the requirements of industry standards; correlation constraint: there is a functional relationship between parameters, and when any parameter is modified, the associated parameters are automatically adapted or prompted for adjustment suggestions.

[0022] Further, the drawing loading module in step S3 has an intelligent layer matching function: reading the layer attributes of the current page of CAD, automatically assigning the elements of the loaded drawing to the corresponding functional layers; if there is no corresponding layer, a layer conforming to industry standards is automatically created.

[0023] Further, the calculation logic of the engineering quantity calculation module in step S5 includes: basic geometric quantity calculation: based on the profile line of the drawing, the roadway cross-sectional area, perimeter and curve segment length are automatically extracted; support engineering quantity calculation: combined with the preset support parameters, the support volume and material consumption are calculated; engineering quantity dynamic update: when the drawing parameters are modified, the engineering quantity list is recalculated and updated in real time, and the changed items and difference values are marked.

[0024] Further, the design assistance system also includes a drawing library dynamic updating module: technical personnel can upload custom intersection point drawings, the system automatically analyzes the drawing structure and generates a parameter model, which is included in the drawing library after constraint relationship verification; supports classification management of the drawing library according to mine types and roadway purposes, improving search accuracy.

[0025] Embodiment: Rapid design and optimization of a 90° right-angle intersection point in a certain coal mine This embodiment takes the design process of a 90° right-angle single-opening intersection point in a certain coal mine underground central yard as an example to illustrate the specific implementation of the present application.

[0026] Step 1: Project initiation and initial condition input The designer starts the "Roadway Intersection Point Intelligent Design System" plug-in integrated in AutoCAD software.

[0027] The system interface is initialized, and the designer inputs the project basic information: mine name XX coal mine, roadway name central yard transportation roadway.

[0028] The designer selects the surrounding rock grade as class III for the intersection point from the system-integrated mine geology and environment knowledge base. The system automatically retrieves the preliminary support suggestion parameters corresponding to this type of surrounding rock, such as anchor rod spacing of 800mm and shotcrete thickness of 100mm.

[0029] Second step: Intelligent component call and initial model loading The designer inputs the keywords 90°, single opening, double track into the search bar through the component call module.

[0030] The system intelligently matches from the parametric BIM component library and recommends three benchmark models in the form of a drop-down menu. The designer selects the "90° right-angle single opening double track intersection point" standard model that best meets the design intent.

[0031] After confirmation, the drawing loading module automatically loads the BIM graphic data of the model into the AutoCAD drawing interface. At the same time, the intelligent layer matching function is started, automatically creating and standardizing layers such as "contour line-tunnel", center line, annotation, support, etc., to ensure that the drawing meets the drawing standards of the mine. The two-dimensional schematic diagram of the loaded initial model is shown in Figure 2 .

[0032] Third step: Parametric driving and model updating The designer calls up the visual parameter panel through the parameter editing module.

[0033] According to the design requirements this time, the key driving parameters are modified: The main roadway net width B0 is adjusted from 4600mm to 4800mm.

[0034] The branch roadway net width B1 is adjusted from 4200mm to 4400mm.

[0035] The wall height H remains unchanged at 1800mm.

[0036] When B0 and B1 are modified, the system automatically calculates the new maximum cross section width B at the cow nose as 7200mm based on the pre-set correlation constraints in the parameter model; for example: B = B0 + B1 sin(θ)-C, where θ is the intersection angle and C is an empirical constant), and updates all related dimensions and curves of the entire graph in unison. The mandatory constraints also check the parameters to ensure that the adjusted cross section area still meets the minimum net cross section requirements for transport roadways in the "Coal Mine Safety Regulations".

[0037] Fourth step: Surrounding rock self-adaptation and support optimization The system's surrounding rock self-adaptation module runs the support strength intelligent matching algorithm based on the selected Class III surrounding rock.

[0038] Based on the built-in surrounding rock quality Q system mapping table and empirical formula, the algorithm automatically optimizes the shotcrete thickness from 100mm to 120mm and adjusts the anchor length from 2.0m to 2.2m.

[0039] The designer confirms the optimization suggestion, and the system drives the BIM model to update the geometry and non-geometry attributes of all supporting structures.

[0040] Step 5: Multi-objective optimization and scheme comparison The designer wants to further optimize the design, so he starts the multi-objective optimization module.

[0041] Set optimization goals: Goal 1 (Economy): Minimize the total project cost.

[0042] Goal 2 (Stability): Maximize the roof stability at the intersection (indirectly represented by arch height and radius of curvature).

[0043] The module uses genetic algorithm (NSGA-II) to automatically optimize with decision variables such as intersection expansion length, wall height increase value, etc.

[0044] After optimization, the system generates two Pareto optimal schemes for comparison: Scheme A: Economy first, lower cost, slightly smaller section.

[0045] Scheme B: Stability first, higher arch at the intersection, more stable structure, slightly higher cost.

[0046] After comprehensive consideration, the designer chooses scheme B. The system automatically updates the model to the final form of scheme B.

[0047] Step 6: Collision detection and quantity generation Before final confirmation, the collision detection module automatically runs to detect that the intersection and adjacent drainage ditch, air pressure pipeline have no conflict in three-dimensional space, and the report is passed.

[0048] The quantity and cost dynamic calculation module calculates the accurate quantities and main material consumption based on the final BIM model, and generates the required bill of quantities. The list can be exported to Excel or PDF format with one click.

Claims

1. A computer-aided rapid design method for roadway intersections, characterized in that, Includes the following steps: Step S1: Construct a standardized drawing library, parametric model, and BIM 3D data: Store data models of parameters such as roadways, cross-sections, and turnouts according to the type of intersection point, and clarify the mandatory constraints and correlation constraints between parameters; Simultaneously construct a BIM 3D model, linking each intersection point type with a multi-dimensional parametric model and a 3D visualization template, and store basic data such as surrounding rock grade and construction specifications in conjunction with mine geological data; Step S2, develop an integrated and enhanced design assistance system plugin: integrate the plugin system into the CAD / BIM software, and add functions such as 3D model generation, report automation, construction simulation, parameter editing, and quantity calculation on the basis of ordinary design drawing, so as to realize the linkage generation and synchronous update of 2D graphics, 3D models, and statistical reports. Step S3, Linked Loading of Graphics and 3D Model: By selecting the type of target intersection point, the system quickly generates a 2D graphic and displays a preview, which is automatically loaded onto the CAD drawing page and adapted to the coordinate system and layers; at the same time, based on the BIM display requirements, the corresponding 3D model is automatically generated and displayed synchronously in the visualization window, supporting real-time switching between 2D and 3D views. Step S4, Parameter Visualization Modification and Multi-Dimensional Synchronous Update: Adjust key parameters through the visualization interface, and the system automatically updates the two-dimensional graphics and three-dimensional model, verifies parameter compliance in real time and issues warnings; Modifications are synchronously mapped to statistical reports, and parameter changes and differences are marked to ensure consistency of data in graphs, models, and reports. Step S5, Report Generation and Construction Assistance Application: After confirming the parameters, the system automatically generates standardized statistical reports; the 3D model can be exported to the construction terminal for on-site construction briefing, process guidance and safety prediction, and supports real-time verification of construction quality and dimensional accuracy based on the model during construction.

2. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, In step S1, the parameter model comes from the construction of a parametric BIM model and a crossroads design knowledge base: an information model based on the needs of coal mine design is established, and each crossroads is associated with a multidimensional parametric model; at the same time, a mine geology and environment knowledge base is constructed to store the surrounding rock grade, geostress, and support preference design rules.

3. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, In step S2, an intelligent design system for roadway intersections is developed and integrated in a CAD or BIM software environment. This system includes: a component calling module, a parameter-driven module, a surrounding rock adaptive module, a multi-objective optimization module, a collision detection module, and a dynamic calculation module for engineering quantity and cost.

4. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, The constraints of the parameter model described in step S1 include: mandatory constraints: parameter values ​​must meet the requirements of industry standards; and correlation constraints: there is a functional relationship between parameters, and when any parameter is modified, the related parameters will automatically adapt or provide adjustment suggestions.

5. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, The drawing loading module described in step S3 has an intelligent layer matching function: it reads the layer attributes of the current CAD page and automatically assigns the elements of the loaded drawing to the corresponding functional layer; if the corresponding layer does not exist, it automatically creates a layer that conforms to industry standards.

6. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, The calculation logic of the engineering quantity calculation module in step S5 includes: basic geometric quantity calculation: automatically extracting the cross-sectional area, perimeter and curve segment length of the tunnel based on the outline of the drawing; support engineering quantity calculation: calculating the support volume and material usage in combination with preset support parameters; dynamic update of engineering quantity: when the drawing parameters are modified, the engineering quantity list is recalculated and updated in real time, and the changes and differences are marked.

7. The computer-aided rapid design method for roadway intersections according to claim 1, characterized in that, The design support system also includes a dynamic drawing library update module: technicians can upload custom intersection point drawings, the system automatically parses the drawing structure and generates a parameter model, which is then included in the drawing library after constraint relationship verification; it supports the classification and management of the drawing library according to mine type and roadway use, improving search accuracy.

8. The computer-aided rapid design method for roadway intersections according to claim 7, characterized in that, The dynamic update module of the drawing library supports uploading custom intersection point drawings. The system automatically parses the drawing structure and generates a parameter model, which is then included in the drawing library after constraint relationship verification. The drawing library can be classified and managed according to mine type and roadway use.

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