CATIA-based hydraulic tunnel three-dimensional rapid design method

Abstract

The invention discloses a CATIA-based hydraulic tunnel three-dimensional rapid design method, belongs to the technical field of water conservancy and hydropower engineering, and solves the problem of low design efficiency of an existing hydraulic tunnel. According to the method, the excavation section, the overflowing channel section and the detail structure design of the hydraulic tunnel are separated, and various parameterized model templates covering all common section forms and detail functional structures in the current hydraulic tunnel design are created, so that the three-dimensional design section of the tunnel can be flexibly and freely combined according to design requirements; and rapid generation and optimization adjustment of the hydraulic tunnel three-dimensional model are driven by the parameters, so that the hydraulic tunnel three-dimensional design efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and specifically relates to a three-dimensional rapid design method for a hydraulic tunnel based on CATIA. Background Art

[0002] As an important building structure of water conservancy and hydropower projects, hydraulic tunnels undertake multiple functions such as power generation, flood discharge, sand discharge and drainage. Their design is directly related to the safety, economy and operation efficiency of the project. With the continuous innovation of water conservancy and hydropower project construction technology and the increasing diversity of project function requirements, the cross-sectional design of hydraulic tunnels has become more complex, with different cross-sectional contours and detailed structural changes. The three-dimensional design and engineering quantity calculation modifications caused by the adjustment of the cross-sectional and detailed structural changes in the design process have become the key points affecting the efficiency of hydraulic tunnel design.

[0003] At present, the invention and research on the universal design method of hydraulic tunnels mainly focuses on the stress and strain calculation of hydraulic tunnels. Most of them are based on the optimization of structural dimensions such as tunnel diameter and vent hole diameter based on mechanical analysis calculation, but no research has been carried out on the efficiency optimization of specific three-dimensional design and related calculations. Summary of the invention

[0004] The purpose of the present invention is to provide a CATIA-based three-dimensional rapid design method for a hydraulic tunnel, thereby solving the problem of low efficiency in existing hydraulic tunnel design.

[0005] The technical solution adopted by the present invention is: a CATIA-based three-dimensional rapid design method for hydraulic tunnels, comprising the following steps: Step 1: Create a tunnel outline combination preview sketch template, a tunnel complete section combination preview sketch template, a tunnel line processing template, a tunnel three-dimensional body model template and a tunnel engineering quantity calculation template; Step 2: Select the surrounding rock type of the tunnel section; Step 3, calling the template established in step 1 to generate a combined preview sketch of the tunnel profile, and determining the cross-sectional parameters of the current surrounding rock type; Step 4: Call the template established in step 1 to generate a preview sketch of the complete cross-section combination of the tunnel, and determine the detailed structural parameters of the current surrounding rock type; Step 5, calling the template established in step 1 to generate the tunnel centerline and its endpoints and starting plane, reading the section and detailed structural parameters determined in steps 3 and 4 respectively, and calling the template established in step 1 to generate a three-dimensional body model of the current surrounding rock type; Step 6: Repeat steps 3 to 5 to complete the section and detailed structure settings of different surrounding rock types and the tunnel line processing to generate a three-dimensional model of the tunnel.

[0006] The present invention is also characterized in that: The control parameters of the tunnel profile combination preview sketch template established in step 1 include the excavation section form, the flow channel section form, the total section height, the bottom width and the arch radius.

[0007] The control parameters of the tunnel complete section combination preview sketch template established in step 1 include the thickness of shotcrete, the thickness of steel lining, the thickness of cable trench cover, the width of drainage ditch and the percentage of bottom plate slope.

[0008] The control parameters of the tunnel line processing template established in step 1 include input condition form, start and end point plane form, start point elevation and end point elevation.

[0009] When establishing the tunnel 3D body model template in step 1, create the same control parameters as the tunnel outline combination preview sketch template and the tunnel complete section combination preview sketch template, and then use the tunnel centerline, centerline starting point and starting plane as input conditions to establish the tunnel 3D body model template.

[0010] The tunnel engineering quantity calculation template established in step 1 controls the parameters including lining reinforcement ratio, anchor spacing, anchor row spacing, consolidation grouting hole depth and stage coefficient.

[0011] Step 3 specifically includes the following steps: Step 3.1, preliminarily set the section parameters according to the surrounding rock type selected in step 2, including the excavation section form, the flow channel section form, the section total height, the bottom width and the arch radius, freely combine the tunnel excavation section and the flow channel section, and call the tunnel profile combination preview sketch template established in step 1 to generate the tunnel profile combination preview sketch; Step 3.2, determine whether the parameter settings in the generated tunnel profile combination preview sketch are reasonable, that is, whether the flow channel profile is within the excavation profile range and the tunnel section profile meets the requirements of NB / T 10391-2020 "Specifications for the Design of Hydraulic Tunnels". If both requirements are met at the same time, it is judged to be reasonable; otherwise, it is judged to be unreasonable; Step 3.3: If the judgment result of step 3.2 is reasonable, the section parameter values ​​preliminarily set in step 3.1 are determined to be the tunnel section parameters of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 3.1 to 3.2 until the parameter settings are reasonable, and the obtained section parameter values ​​are the tunnel section parameters of the current surrounding rock type.

[0012] Step 4 specifically includes the following steps: Step 4.1, based on the section parameters determined in step 3, preliminarily set the detailed structural parameters corresponding to the surrounding rock type, including the shotcrete thickness, steel lining thickness, cable trench cover thickness, drainage ditch width and bottom plate slope percentage, and call the tunnel complete section combination preview sketch template established in step 1 to generate the tunnel complete section combination preview sketch corresponding to the current parameters; Step 4.2: Determine whether the parameter settings in the generated preview sketch of the complete section of the tunnel are reasonable, that is, whether there is no geometric interference conflict between the detailed structure contours and whether the complete section contour of the tunnel meets the requirements of NB / T 10391-2020 "Specifications for Design of Hydraulic Tunnels". If both requirements are met at the same time, it is judged to be reasonable; otherwise, it is judged to be unreasonable; Step 4.3: If the judgment result of step 4.2 is reasonable, the detailed structure parameter values ​​preliminarily set in step 4.1 are determined to be the detailed structure parameters of the tunnel of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 4.1 to 4.2 until the parameter settings are reasonable, and the obtained detailed structure parameter values ​​are the detailed structure parameters of the tunnel of the current surrounding rock type.

[0013] Step 5 is specifically as follows: create a tunnel shape name, draw a tunnel horizontal line or tunnel centerline in three-dimensional space, select "input condition form", set tunnel line related parameters, select the tunnel horizontal line or tunnel centerline drawn in three-dimensional space, call the tunnel line processing template established in step 1 to generate the tunnel centerline, centerline starting point, centerline end point and starting plane, read the tunnel section parameters of the current surrounding rock type determined in step 3, read the tunnel detailed structure parameters of the current surrounding rock type determined in step 4, and call the tunnel three-dimensional shape model template established in step 1 to generate a three-dimensional shape model of the current surrounding rock type.

[0014] It also includes step 7, which is specifically: setting the length of the caverns of various surrounding rock types, selecting surrounding rock types of different sections and setting their engineering quantity calculation related parameters respectively, calling the tunnel engineering quantity calculation template established in step 1 to calculate the tunnel engineering quantity, and finally summarizing the total engineering quantity of the current tunnel design and exporting the total engineering quantity table.

[0015] The beneficial effects of the present invention are as follows: the present invention is based on the CATIA-based three-dimensional rapid design method for hydraulic tunnels, which separates the excavation section, flow channel section and detailed structure design of the hydraulic tunnel, and creates a variety of parametric model templates covering all common section forms and detailed functional structures of the current hydraulic tunnel design, so that the three-dimensional design sections of the tunnel can be flexibly and freely combined according to design requirements, and the three-dimensional model of the hydraulic tunnel is driven by parameters to quickly generate and optimize the adjustment, thereby improving the three-dimensional design efficiency of the hydraulic tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a combined preview sketch template of a tunnel profile established in the CATIA-based three-dimensional rapid design method for hydraulic tunnels of the present invention; Figure 2 It is a schematic diagram of a combined preview sketch template of a complete section of a tunnel established in the CATIA-based three-dimensional rapid design method for hydraulic tunnels of the present invention; Figure 3 It is a schematic diagram of a tunnel line processing template established in the CATIA-based three-dimensional rapid design method for hydraulic tunnels of the present invention; Figure 4 It is a schematic diagram of a three-dimensional tunnel shape model template established in the three-dimensional rapid design method of a hydraulic tunnel based on CATIA of the present invention; Figure 5 It is a schematic diagram of a tunnel engineering quantity calculation template established in the CATIA-based hydraulic tunnel three-dimensional rapid design method of the present invention; Figure 6 It is a combined preview sketch of the tunnel outline and a combined preview sketch of the tunnel complete section generated in the CATIA-based three-dimensional rapid design method for hydraulic tunnels of the present invention; Figure 7 It is a schematic diagram of a three-dimensional model of a tunnel generated in the three-dimensional rapid design method of a hydraulic tunnel based on CATIA of the present invention; Figure 8 It is a schematic representation of the total engineering quantity derived from the three-dimensional rapid design method for hydraulic tunnels based on CATIA of the present invention. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1 The present invention provides a CATIA-based three-dimensional rapid design method for hydraulic tunnels, creates a variety of parametric model templates and hydraulic tunnel engineering quantity calculation templates covering all common cross-sectional forms and detailed functional structures of current hydraulic tunnel designs, so that the three-dimensional design sections of the tunnel can be flexibly and freely combined according to design requirements. Based on CAA development, a design process of integrated hydraulic tunnels from shallow to deep and gradually refined is implemented, and parameter-driven models and engineering quantity calculations are quickly generated and updated in real time, so as to realize the three-dimensional rapid design of hydraulic tunnels.

[0019] Through the above-mentioned method, the CATIA-based 3D rapid design method for hydraulic tunnels of the present invention separates the excavation section, flow channel section and detailed structure (support, steel lining, cable trench, drainage ditch, bottom plate) of the hydraulic tunnel, and creates a variety of parametric model templates covering all common section forms and detailed functional structures of the current hydraulic tunnel design, so that the 3D design section of the tunnel can be flexibly and freely combined according to the design requirements. Compared with the traditional integrated section design idea, it has stronger adaptability to the actual design conditions and can cover a wider range of hydraulic tunnel design applications.

[0020] The present invention also establishes a variety of parametric three-dimensional models and calculation templates that meet the actual design needs, gradually refines the three-dimensional design of hydraulic tunnels from the shallow to the deep, and strongly associates the design parameters with the three-dimensional model and design calculation, so as to drive the rapid generation and instant update of the model and engineering quantity calculation with parameters. Compared with the traditional two-dimensional design, it can more realistically and intuitively show the spatial form of the hydraulic tunnel, more efficiently obtain the three-dimensional design results of the hydraulic tunnel, and facilitate the designers to optimize the tunnel line and adjust the detailed structure of the hydraulic tunnel design.

[0021] Example 2 The present invention provides a CATIA-based three-dimensional rapid design method for hydraulic tunnels, which specifically includes the following steps: Step 1: Create various control parameters for hydraulic tunnels, such as Figures 1 to 5 As shown, a tunnel outline combination preview sketch template, a tunnel complete section combination preview sketch template, a tunnel line processing template, a tunnel three-dimensional body model template, and a tunnel engineering quantity calculation template are established.

[0022] Step 2: Create a hydraulic tunnel design, set the tunnel section design name, and select the section surrounding rock type.

[0023] Step 3: According to the section surrounding rock type selected in step 2, preliminarily set the section parameters, freely combine the tunnel excavation section and the flow channel section, call the tunnel contour combination preview sketch template established in step 1, and generate the tunnel contour combination preview sketch, such as Figure 6 As shown, determine the cross-sectional parameters of the current tunnel surrounding rock type.

[0024] Step 4: Based on the section parameters determined in step 3, preliminarily set the support, steel lining, cable trench, drainage ditch, and bottom plate control parameters corresponding to the tunnel surrounding rock type, call the tunnel complete section combination preview sketch template established in step 1, and generate the tunnel complete section combination preview sketch corresponding to the current parameters, such as Figure 6 As shown in the figure, the detailed structural parameters of the tunnel such as support, steel lining, cable trench, drainage ditch, bottom plate, etc. corresponding to the current tunnel surrounding rock type are determined.

[0025] Step 5. Create a tunnel shape name, draw a tunnel horizontal line or tunnel center line in three-dimensional space, select "Input condition form", set tunnel line related parameters, select the tunnel horizontal line or tunnel center line drawn in three-dimensional space, call the tunnel line processing template established in step 1, generate the tunnel center line, starting plane, center line starting point, center line end point, read the cross-sectional parameters of the current tunnel surrounding rock type determined in step 3, read the support, steel lining, cable trench, drainage ditch, bottom plate and other tunnel detailed structure parameters corresponding to the current tunnel surrounding rock type determined in step 4, call the tunnel three-dimensional shape model template established in step 1, and generate a three-dimensional shape model of the current tunnel surrounding rock type.

[0026] Step 6: Repeat steps 3 to 5 to complete the detailed structure settings of the sections and supports, steel lining, cable trench, drainage ditch, bottom plate and other detailed structures of the current tunnel with different surrounding rock types, and process the tunnel line to generate the corresponding 3D body model, as shown in the attached figure. Figure 7 shown.

[0027] Step 7. Select the tunnel section design name, set the length of each type of surrounding rock chamber, select different section surrounding rock types, set the relevant parameters for engineering quantity calculation, call the tunnel engineering quantity calculation template established in step 1, calculate the tunnel engineering quantity, and finally summarize the total engineering quantity of the current tunnel design and export the total engineering quantity table, as shown in the attached figure. Figure 8 As shown, the general three-dimensional design of hydraulic tunnels is completed.

[0028] Example 3 The present invention provides a CATIA-based three-dimensional rapid design method for hydraulic tunnels. Based on Example 2, step 1 preferably includes the following steps: Step 1.1, create tunnel section profile control parameters, including excavation section form, flow channel section form, section total height, bottom width, and arch radius. Use the parameters as input conditions to create a tunnel profile combination preview sketch template, as shown in the attached figure. Figure 1 shown.

[0029] Step 1.2, create tunnel support, steel lining, cable trench, drainage ditch, bottom plate control parameters, including shotcrete thickness, steel lining thickness, cable trench cover thickness, drainage ditch width and bottom plate slope percentage, and use the parameters as input conditions to create a complete tunnel section combination preview sketch template, as shown in the attached figure. Figure 2 shown.

[0030] Step 1.3, create tunnel line control parameters, including input condition form, start and end point plane form, start elevation, end elevation, use tunnel horizontal line or tunnel center line as input condition, and create tunnel line processing template, as shown in the attached figure. Figure 3 shown.

[0031] Step 1.4: Create the same tunnel section contour control parameters as step 1.1, the same tunnel support, steel lining, cable trench, drainage ditch, and bottom plate control parameters as step 1.2, and use the tunnel centerline, centerline starting point, and starting plane as input conditions to establish a tunnel 3D body model template with built-in engineering quantity calculation related model measurement parameters, as shown in the attached figure. Figure 4 shown.

[0032] Step 1.5, create engineering quantity calculation parameters, including lining reinforcement ratio, anchor spacing, anchor spacing, consolidation grouting hole depth, stage coefficient, clarify engineering quantity calculation items, and establish a tunnel engineering quantity calculation template, as shown in the attached Figure 5 shown.

[0033] Example 4 The present invention provides a CATIA-based three-dimensional rapid design method for hydraulic tunnels. Based on Example 2, step 3 preferably includes the following steps: Step 3.1, according to the section surrounding rock type selected in step 2, set the section parameters, including excavation section form, flow channel section form, section total height, bottom width, and arch radius, freely combine the tunnel excavation section and flow channel section, call the tunnel contour combination preview sketch template established in step 1, and generate the tunnel contour combination preview sketch, as shown in the attached figure. Figure 6 shown.

[0034] Step 3.2. Observe the preview sketch of the tunnel contour combination generated in step 3.1 to determine whether the current tunnel excavation section form and the flow channel section parameter settings are reasonable, that is, whether the flow channel contour is within the excavation contour range and the tunnel section meets the requirements of NB / T 10391-2020 "Specifications for Design of Hydraulic Tunnels".

[0035] Step 3.3: If the judgment result of step 3.2 is reasonable, the section parameter values ​​preliminarily set in step 3.1 are determined to be the tunnel section parameters of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 3.1 to 3.2 until the parameter settings are reasonable, and the obtained section parameter values ​​are the tunnel section parameters of the current surrounding rock type.

[0036] Example 5 The present invention provides a CATIA-based three-dimensional rapid design method for hydraulic tunnels. Based on Example 2, step 4 preferably includes the following steps: Step 4.1. Based on the section parameters determined in step 3, preliminarily set the support, steel lining, cable trench, drainage ditch, and bottom plate control parameters corresponding to the tunnel surrounding rock type, including the thickness of shotcrete, steel lining, cable trench cover, drainage ditch width, and bottom plate slope percentage. Call the tunnel complete section combination preview sketch template established in step 1 to generate the tunnel complete section combination preview sketch corresponding to the current parameters, as shown in the attached figure. Figure 6 shown.

[0037] Step 4.2, judge whether the parameter settings in the generated preview sketch of the complete section combination of the tunnel are reasonable, that is, whether there is no geometric interference conflict such as intersection and overlap between the contours of the detailed structures such as tunnel support, steel lining, cable trench, drainage ditch, bottom plate, etc., and whether the complete section contour of the tunnel complies with the requirements of NB / T 10391-2020 "Specifications for Design of Hydraulic Tunnels". If the above two requirements are met at the same time, it is judged to be reasonable; if one of the requirements is not met or both requirements are not met, it is judged to be unreasonable.

[0038] Step 4.3: If the judgment result of step 4.2 is reasonable, the detailed structure parameter values ​​preliminarily set in step 4.1 are determined to be the detailed structure parameters of the tunnel of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 4.1 to 4.2 until the parameter settings are reasonable, and the obtained detailed structure parameter values ​​are the detailed structure parameters of the tunnel of the current surrounding rock type.

[0039] Example 6 The invention provides a CATIA-based hydraulic tunnel three-dimensional rapid design system, which includes a hydraulic tunnel universal design module. The hydraulic tunnel universal design module stores template generation and calculation instructions for calling to execute a hydraulic tunnel three-dimensional rapid design method.

[0040] Specifically, based on the native function commands of the existing CATIA three-dimensional software, CAA is used for secondary development to add a "hydraulic tunnel general design" command module, and the "hydraulic tunnel general design" command module encapsulates the CATIA-based hydraulic tunnel three-dimensional rapid design method provided by the present invention. This command does not require the use of commands such as measurement in CATIA and formula calculation in Excel. It only needs to click the "hydraulic tunnel general design" command, enter relevant control parameters, and select the tunnel horizontal line / center line drawn in the input three-dimensional space. The hydraulic tunnel three-dimensional design and engineering quantity calculation results can be adjusted and quickly calculated, and then exported to complete the hydraulic tunnel three-dimensional design, that is, all previous processes are encapsulated in the "hydraulic tunnel general design" command, and the program is used to automatically read and create, saving manual time.

Claims

1. The CATIA-based 3D rapid design method for hydraulic tunnels is characterized by: The following steps are involved: Step 1: Create a tunnel outline combination preview sketch template, a tunnel complete section combination preview sketch template, a tunnel line processing template, and a tunnel 3D body model template; Step 2: Select the surrounding rock type of the tunnel section; Step 3, calling the template established in step 1 to generate a combined preview sketch of the tunnel profile, and determining the cross-sectional parameters of the current surrounding rock type; Step 4: Call the template established in step 1 to generate a preview sketch of the complete cross-section combination of the tunnel, and determine the detailed structural parameters of the current surrounding rock type; Step 5, calling the template established in step 1 to generate the tunnel centerline and its endpoints and starting plane, reading the section and detailed structural parameters determined in steps 3 and 4 respectively, and calling the template established in step 1 to generate a three-dimensional body model of the current surrounding rock type; Step 6: Repeat steps 3 to 5 to complete the section and detailed structure settings of different surrounding rock types and the tunnel line processing to generate a three-dimensional model of the tunnel.

2. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The control parameters of the tunnel profile combination preview sketch template established in step 1 include the excavation section form, the flow channel section form, the total section height, the bottom width and the arch radius.

3. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1 is characterized in that: The control parameters of the tunnel complete section combination preview sketch template established in step 1 include the thickness of shotcrete, the thickness of steel lining, the thickness of cable trench cover, the width of drainage ditch and the percentage of bottom plate slope.

4. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The control parameters of the tunnel line processing template established in step 1 include input condition form, start and end point plane form, start point elevation and end point elevation.

5. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: When establishing the tunnel three-dimensional body model template in step 1, create the same control parameters as the tunnel outline combination preview sketch template and the tunnel complete section combination preview sketch template, and then use the tunnel centerline, centerline starting point and starting plane as input conditions to establish the tunnel three-dimensional body model template.

6. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The step 3 specifically comprises the following steps: Step 3.1, preliminarily set the section parameters according to the surrounding rock type selected in step 2, including the excavation section form, the flow channel section form, the section total height, the bottom width and the arch radius, freely combine the tunnel excavation section and the flow channel section, and call the tunnel profile combination preview sketch template established in step 1 to generate the tunnel profile combination preview sketch; Step 3.2, determine whether the parameter settings in the generated tunnel profile combination preview sketch are reasonable, that is, whether the flow channel profile is within the excavation profile range and the tunnel section profile meets the requirements of NB / T 10391-2020 "Specifications for the Design of Hydraulic Tunnels". If both requirements are met at the same time, it is judged to be reasonable; otherwise, it is judged to be unreasonable; Step 3.3: If the judgment result of step 3.2 is reasonable, the section parameter values ​​preliminarily set in step 3.1 are determined to be the tunnel section parameters of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 3.1 to 3.2 until the parameter settings are reasonable, and the obtained section parameter values ​​are the tunnel section parameters of the current surrounding rock type.

7. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The step 4 specifically comprises the following steps: Step 4.1, based on the section parameters determined in step 3, preliminarily set the detailed structural parameters corresponding to the surrounding rock type, including the shotcrete thickness, steel lining thickness, cable trench cover thickness, drainage ditch width and bottom plate slope percentage, and call the tunnel complete section combination preview sketch template established in step 1 to generate the tunnel complete section combination preview sketch corresponding to the current parameters; Step 4.2: Determine whether the parameter settings in the generated preview sketch of the complete section of the tunnel are reasonable, that is, whether there is no geometric interference conflict between the detailed structure contours and whether the complete section contour of the tunnel meets the requirements of NB / T 10391-2020 "Specifications for Design of Hydraulic Tunnels". If both requirements are met at the same time, it is judged to be reasonable; otherwise, it is judged to be unreasonable; Step 4.3: If the judgment result of step 4.2 is reasonable, the detailed structure parameter values ​​preliminarily set in step 4.1 are determined to be the detailed structure parameters of the tunnel of the current surrounding rock type; if it is unreasonable, adjust the relevant parameter settings, repeat steps 4.1 to 4.2 until the parameter settings are reasonable, and the obtained detailed structure parameter values ​​are the detailed structure parameters of the tunnel of the current surrounding rock type.

8. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The step 5 is specifically as follows: creating a tunnel shape name, drawing a tunnel horizontal line or a tunnel center line in three-dimensional space, selecting "input condition form", setting tunnel line related parameters, selecting the tunnel horizontal line or the tunnel center line drawn in three-dimensional space, calling the tunnel line processing template established in step 1 to generate the tunnel center line, the center line starting point, the center line end point and the starting plane, reading the tunnel section parameters of the current surrounding rock type determined in step 3, reading the tunnel detailed structure parameters of the current surrounding rock type determined in step 4, and calling the tunnel three-dimensional shape model template established in step 1 to generate a three-dimensional shape model of the current surrounding rock type.

9. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 1, characterized in that: The step 1 also includes establishing a tunnel engineering quantity calculation template, and the control parameters include lining reinforcement ratio, anchor spacing, anchor row spacing, consolidation grouting hole depth and stage coefficient.

10. The CATIA-based three-dimensional rapid design method for hydraulic tunnels according to claim 9, characterized in that: It also includes step 7, which is specifically: setting the length of the caverns of various surrounding rock types, selecting surrounding rock types of different sections and setting their engineering quantity calculation related parameters respectively, calling the tunnel engineering quantity calculation template established in step 1 to calculate the tunnel engineering quantity, and finally summarizing the total engineering quantity of the current tunnel design and exporting the total engineering quantity table.

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