Method for automatically drawing construction drawing of tail water branch pipe of hydropower station

Abstract

The invention relates to a hydropower station tail water branch pipe construction drawing automatic drawing method. The method is suitable for the field of water conservancy and hydropower engineering. According to the technical scheme, the method comprises the steps that hydropower station tail water branch pipe design parameters input by a user are obtained; based on the branch pipe project and the contour parameters, the type of the tail water branch pipe is judged, and a contour map of the tail water branch pipe is drawn; drawing a branch pipe excavation support drawing, a structure and grouting arrangement drawing and a steel bar drawing on the basis of the outline drawing in combination with the excavation support parameters, the structure and grouting arrangement parameters and the reinforcement parameters; based on the branch pipe excavation support drawing, the structure and grouting arrangement drawing and the steel bar drawing, the excavation engineering amount, the structure and grouting engineering amount and the steel bar engineering amount are calculated, and an engineering amount table is generated; based on the type of the tail water branch pipe, a corresponding preset drawing frame is selected, the excavation support drawing, the structure and grouting arrangement drawing and the steel bar drawing are added to preset positions in the drawing frame, and a complete hydropower station tail water branch pipe construction drawing is generated.

Description

Technical Field

[0001] The invention relates to a method for automatically drawing a construction drawing of a tailwater bifurcated pipe of a hydropower station, and is applicable to the field of water conservancy and hydropower engineering. Background Art

[0002] In recent years, due to the accelerated pace of hydropower and water conservancy project design and the inefficiency of manual mapping, the workload of design and mapping has increased significantly, and human resources are becoming increasingly tight. At present, the design drawings of standard structures (including tunnels, pump houses, powerhouses, tailwater pipes, surge tanks, intake towers, etc.) still need to be drawn manually, which not only consumes a lot of time and energy, but is also prone to errors due to cumbersome operations. Therefore, improving the efficiency and accuracy of hydropower and water conservancy project mapping has become an urgent problem that needs to be solved.

[0003] The tailwater bifurcated pipe of a hydropower station is an important part of the hydropower and water conservancy project. Designers need to draw excavation support drawings, grouting drawings, and reinforcement drawings, and the workload in the construction drawing design stage is very large. Due to the lack of automated drawing methods and drawing systems, the construction drawings of the tailwater bifurcated pipe still mainly rely on designers using general computer-aided design software (AtuoCAD software) to draw, which is inefficient and prone to errors. This problem will become more prominent when the design plan is repeatedly modified. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the above existing problems, a method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station is provided.

[0005] The technical solution adopted by the present invention is: a method for automatically drawing a construction drawing of a tailwater bifurcated pipe of a hydropower station, characterized in that it comprises:

[0006] Obtain the tailwater bifurcated pipe design parameters of the hydropower station entered by the user, which include bifurcated pipe engineering and profile parameters, excavation support parameters, structure and grouting arrangement parameters, and reinforcement parameters;

[0007] Based on the bifurcated pipe engineering and profile parameters, determine the type of tailwater bifurcated pipe and draw the tailwater bifurcated pipe profile diagram;

[0008] Based on the contour diagram combined with excavation support parameters, structure and grouting layout parameters and reinforcement parameters, draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram;

[0009] Based on the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram, calculate the excavation quantity, structure and grouting quantity, reinforcement quantity, and generate a quantity table;

[0010] Based on the type of tailwater bifurcations, the corresponding preset drawing frame is selected, and the excavation support drawing, structure and grouting arrangement drawing, and reinforcement drawing are added to the preset position in the drawing frame to generate a complete construction drawing of the tailwater bifurcations of the hydropower station.

[0011] The branch pipe project and profile parameters include project name, main pipe azimuth, starting pile number, main pipe tunnel inner diameter, main pipe lining thickness, branch pipe inner diameter, branch pipe lining thickness, slope ratio, bifurcation angle, rounding radius of the main and branch pipe connection position, and lining concrete grade parameters.

[0012] The excavation support parameters include anchor rod length, anchor rod spacing, anchor rod bending length, anchor rod penetration depth into rock, mesh sprayed concrete thickness, and mesh sprayed concrete range.

[0013] The structure and grouting arrangement parameters include the rock penetration depth, row spacing, and number of holes in each row of grouting holes.

[0014] The reinforcement parameters include main reinforcement model, main reinforcement diameter, main reinforcement spacing, auxiliary reinforcement model, auxiliary reinforcement diameter, and auxiliary reinforcement spacing.

[0015] The types of the tailwater bifurcated pipe include a radian bifurcated pipe, a symmetrical Y-shaped bifurcated pipe, and an asymmetrical Y-shaped bifurcated pipe.

[0016] The type of tailwater bifurcated pipe is determined based on the bifurcated pipe engineering and profile parameters, including:

[0017] The bifurcation angle in the bifurcated pipe engineering and profile parameters includes the bifurcation angle of the upper part of the main pipe and the bifurcation angle of the lower part of the main pipe, both of which are decimals greater than or equal to 0;

[0018] When only one of the upper fork angle and the lower fork angle is 0, the bifurcation pipe is determined to be a type B bifurcation pipe;

[0019] When the upper fork angle is different from the lower fork angle and both are not 0, the fork pipe is determined to be an asymmetric Y-type fork pipe;

[0020] When the upper fork angle and the lower fork angle are both not 0 and are the same, the fork pipe is determined to be a symmetrical Y-type fork pipe.

[0021] The excavation works include the rock excavation volume, the number of anchor rods, the area of ​​shotcrete, and the weight of mesh reinforcement;

[0022] The said structure and grouting works include the total length of the consolidation grouting drilling holes, the total length of the copper sheet water stop, and the volume of the lining concrete;

[0023] The steel bar engineering quantity includes the length of single steel bars, the number of steel bars, the weight of single steel bars at different positions of the main pipe and branch pipe, and the total weight of the main bars and auxiliary bars of the tailwater branch pipe.

[0024] A system for automatically drawing construction drawings of tailwater bifurcated pipes of a hydropower station, characterized by comprising:

[0025] The parameter input module is used to obtain the design parameters of the tailwater bifurcated pipe of the hydropower station entered by the user. The design parameters of the tailwater bifurcated pipe of the hydropower station include bifurcated pipe engineering and profile parameters, excavation support parameters, structure and grouting arrangement parameters, and reinforcement parameters;

[0026] Drawing module I is used to determine the type of tailwater bifurcated pipe based on bifurcated pipe engineering and contour parameters, and draw the contour diagram of the tailwater bifurcated pipe;

[0027] Drawing module II is used to draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram based on the contour diagram combined with the excavation support parameters, structure and grouting layout parameters and reinforcement parameters;

[0028] The engineering quantity calculation module is used to calculate the excavation quantity, structure and grouting quantity, and steel quantity based on the bifurcated pipe excavation support diagram, structure and grouting layout diagram, and steel bar diagram, and generate the engineering quantity table;

[0029] The construction drawing generation module is used to select the corresponding preset drawing frame based on the type of tailwater bifurcations, add the excavation support drawings, structure and grouting arrangement drawings, and reinforcement drawings to the preset positions in the drawing frame, and generate a complete construction drawing of the tailwater bifurcations of the hydropower station.

[0030] A storage medium stores a computer program that can be executed by a processor, characterized in that when the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station are implemented.

[0031] A device for automatically drawing the construction drawing of a tailwater bifurcated pipe of a hydropower station comprises a memory and a processor, wherein a computer program executable by the processor is stored in the memory, and the device is characterized in that when the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of the hydropower station are implemented.

[0032] The beneficial effects of the present invention are as follows: the present invention draws a contour diagram of a tailwater bifurcation based on the design parameters of the tailwater bifurcation of a hydropower station, draws a bifurcation excavation and support diagram, a structure and grouting arrangement diagram and a reinforcement diagram based on the contour diagram and the design parameters, calculates the excavation engineering quantity, the structure and grouting engineering quantity and the reinforcement engineering quantity based on the bifurcation excavation and support diagram, the structure and grouting arrangement diagram and the reinforcement diagram, realizes the parametric one-key generation of the construction drawing of the tailwater bifurcation of the hydropower station, and can quickly update and generate the drawing file after the design parameters are modified.

[0033] According to the preset corresponding relationship, the present invention selects the corresponding preset drawing frame based on the type of tailwater bifurcation pipe, and generates the construction drawing of the tailwater bifurcation pipe of the hydropower station in combination with the preset drawing frame. The drawing file has a reasonable layout and accurate drawing, which meets the drawing standards of water conservancy and hydropower engineering.

[0034] The present invention has good adaptability and interactivity, is applicable to a variety of common bifurcated pipe shapes, can greatly improve drawing work efficiency, reduce errors, and further improve design quality and accuracy.

[0035] The present invention has good fault tolerance performance. After the drawing is completed, a preview image is provided for the user to observe and confirm. By observing the preview image, parameter errors can be discovered in time so that the errors can be corrected quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of the method for automatically drawing the construction drawings of the tailwater bifurcations of a hydropower station.

[0037] Figure 2 It is a schematic diagram of the engineering parameters and contour parameters of the tailwater bifurcated pipe.

[0038] Figure 3 It is the tailwater bifurcation excavation support parameters and excavation support preview diagram.

[0039] Figures 4 to 5 This is the generated tailwater bifurcated pipe excavation support diagram.

[0040] Figure 6 It is the interface for previewing the tailwater bifurcated pipe structure and grouting arrangement parameters, structure and grouting arrangement.

[0041] Figures 7 and 8 This is the generated tailwater bifurcated pipe structure and grouting arrangement diagram.

[0042] Fig. 9 It is the tailwater branch pipe reinforcement parameters and reinforcement preview interface.

[0043] Figures 10 to 12 This is the generated tailwater branch pipe reinforcement diagram. DETAILED DESCRIPTION

[0044] Example 1: Figure 1 As shown, this embodiment is a method for automatically drawing a construction drawing of a tailwater bifurcated pipe of a hydropower station, which specifically includes the following steps:

[0045] S100, obtaining the tailwater bifurcation design parameters of the hydropower station input by the user based on the tailwater bifurcation design template, and saving the parameters as a bifurcation parameter configuration file in json format; later, the configuration file can be read to automatically fill in the bifurcation parameters, thereby reducing the time required to modify the design parameters or input similar engineering design parameters.

[0046] In this example, the design parameters of the tailwater bifurcations of the hydropower station consist of bifurcations engineering and profile parameters, excavation support parameters, structure and grouting arrangement parameters, and reinforcement parameters.

[0047] In this embodiment, the bifurcated pipe project and profile parameters are composed of the project name, main pipe azimuth, starting pile number, main pipe tunnel inner diameter, main pipe lining thickness, branch pipe inner diameter, branch pipe lining thickness, slope ratio, bifurcation angle, main and branch pipe connection position rounding radius and lining concrete grade parameters.

[0048] In this example, the excavation support parameters consist of anchor length, anchor spacing, anchor bending length, anchor penetration depth, mesh shotcrete thickness and mesh shotcrete range.

[0049] In this embodiment, the structural and grouting arrangement parameters consist of the rock penetration depth, row spacing and number of holes in each row of the grouting holes.

[0050] In this embodiment, the reinforcement parameters include the main reinforcement model, main reinforcement diameter, main reinforcement spacing, auxiliary reinforcement model, auxiliary reinforcement diameter and auxiliary reinforcement spacing.

[0051] S200: Based on the bifurcated pipe engineering and contour parameters, determine the type of the tailwater bifurcated pipe and draw a contour diagram of the tailwater bifurcated pipe.

[0052] In this embodiment, the type of tailwater bifurcation pipe is determined based on the bifurcation angle in the bifurcation pipe engineering and the profile parameters. The bifurcation angle includes the bifurcation angle of the upper part of the main pipe and the bifurcation angle of the lower part of the main pipe, both of which are decimals greater than or equal to 0.

[0053] In this example, when only one of the upper fork angle and the lower fork angle is 0, the fork pipe is determined to be a Bu-type fork pipe; when the upper fork angle is different from the lower fork angle and both are not 0, the fork pipe is determined to be an asymmetric Y-type fork pipe; when the upper fork angle and the lower fork angle are both not 0 and the same, the fork pipe is determined to be a symmetric Y-type fork pipe; when both the upper fork angle and the lower fork angle are 0, it is determined to be an input error.

[0054] S300, based on the contour diagram combined with excavation support parameters, structure and grouting layout parameters and reinforcement parameters, draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram.

[0055] In the traditional drawing method, for branch pipes of different sizes, an independent drawing method is compiled for each type of branch pipe. Not only is the implementation of the method labor-intensive, but also the use is inconvenient due to the different parameters of each type of branch pipe. In this embodiment, by introducing two parameters, namely the fork angle of the upper part of the branch pipe and the fork angle of the lower part of the branch pipe, a universal drawing method for common branch pipe shapes is established. The implementation of the method is simpler, and branch pipes of different sizes use the same set of input parameters, which is more convenient to use.

[0056] The first step is to determine the shape of the bifurcated pipe according to the input upper bifurcated angle and lower bifurcated angle;

[0057] The second step is to determine the connection form between the main pipe and the branch pipe according to the shape of the bifurcated pipe. In a symmetrical Y-shaped bifurcated pipe, the main pipe and the two branch pipes are connected in an arc shape. In an asymmetrical Y-shaped bifurcated pipe or a spherical bifurcated pipe, the main pipe is connected to the branch pipe on the side with the smaller bifurcation angle by a broken line, and is connected to the branch pipe on the side with the larger bifurcation angle by an arc.

[0058] The third step is to draw the outline of the bifurcated pipe according to its shape and connection form, and then use the outline to draw the excavation support diagram, structure and grouting layout diagram, and reinforcement diagram respectively;

[0059] S400, based on the branch pipe excavation support diagram, structure and grouting arrangement diagram and reinforcement diagram, calculate the excavation engineering quantity, structure and grouting engineering quantity, reinforcement engineering quantity, and generate an engineering quantity table.

[0060] In this embodiment, the excavation quantity includes the stone excavation volume, the number of anchor rods, the sprayed concrete area, and the weight of the mesh steel bars; the structure and grouting quantity includes the total length of the consolidation grouting drilling holes, the total length of the copper sheet water stop, and the lining concrete volume; the steel bar quantity includes the length of a single steel bar at different positions of the main pipe and branch pipe, the number of steel bars, the weight of a single steel bar, and the total weight of the main bars and the total weight of the auxiliary bars of the tailwater branch pipe.

[0061] S500. Based on the type of tailwater branch pipe, select the corresponding preset drawing frame, add the excavation support drawing, structure and grouting arrangement drawing, and reinforcement drawing to the preset position in the drawing frame, generate a complete construction drawing of the tailwater branch pipe of the hydropower station, and export it to a CAD drawing in DXF format.

[0062] In this embodiment, before drawing, the parameter format and value range are verified. When the format does not meet the requirements, the correct format is prompted. When the value range does not meet the requirements, the maximum and minimum values ​​of the parameters are prompted. When drawing, for a single geometric element, the existence of the geometric element, the rationality of the relative position relationship with other geometric elements, and the rationality of the absolute position are verified. For arrays of geometric bodies such as grouting holes, anchor rods, and steel bars, it is also necessary to verify that the number of geometric bodies in the array is greater than 1. When the verification fails, the drawing is terminated and the type of drawing with problems, the name of the sub-drawing, the location of the geometric element that failed to be drawn, the relevant input parameters, and the specific problem of the verification failure are prompted.

[0063] The following is an explanation with specific examples:

[0064] like Figure 2As shown, before drawing the tailwater bifurcated pipe, the relevant parameters of the bifurcated pipe project need to be input, which are the starting pile numbers and main pipe azimuth information of the 1#, 2#, and 3# tailwater tunnels in this embodiment: the starting pile number of the 1# tailwater tunnel is 1+357.876, the starting pile number of the 2# tailwater tunnel is 1+376.962, the starting pile number of the 3# tailwater tunnel is 1+376.962, and the main pipe azimuth is N10W; then the bifurcated pipe profile parameters are input, the main pipe inner diameter is 680cm, the tailwater tunnel lining thickness is 50cm, the main pipe lining thickness is 70cm, and the main pipe diameter slope ratio is 0.5; the branch pipe inner diameter is 500cm; the bifurcated angle of the upper part of the bifurcated pipe is 25°, the bifurcated angle of the lower part is 25°, and the radius of the main pipe and the branch bifurcated corner rounding is 1000cm. The upper bifurcated angle of the bifurcated pipe is the same as the lower bifurcated angle, so it is determined to be a symmetrical Y-type bifurcated pipe.

[0065] like Figure 3 As shown, input the excavation support parameters, including anchor bar model HRB400, diameter 25mm, spacing 150cm; upper arch anchor rod or anchor bar length 450cm, rock penetration depth 410cm; upper arch anchor rod diameter 22mm, spacing 150cm, length 300cm, rock penetration depth 260cm; lower arch anchor rod or anchor bar diameter 25mm, spacing 150cm, length 450cm, bending length 35cm, rock penetration depth 350cm; lower arch anchor rod diameter 22mm, spacing 150cm, anchor rod length 300cm, bending length 35cm, rock penetration depth 200cm; mesh spraying concrete thickness 10cm, mesh range 240°. Excavation support preview as shown below Figure 3 The generated tailwater bifurcated pipe excavation support CAD drawing is shown in Figure 4 , Figure 5 shown.

[0066] like Figure 6 As shown in the figure, the input structure and grouting layout parameters include: the rock penetration depth of the grouting holes at position 1 is 500cm, the row spacing is 200cm, and the number of holes in each row is 15; the rock penetration depth of the grouting holes at position 2 is 400cm, the row spacing is 190cm, and the number of holes in each row is 12; the rock penetration depth of the grouting holes at position 3 is 180cm, and the number of holes in each row is 16. The preview of the structure and grouting layout is shown in the figure below. Figure 7 The generated structure and grouting arrangement CAD drawings are shown in Figure 7 , Figure 8 shown.

[0067] like Fig. 9 As shown in the figure, input the steel bar parameters, including the main bar model HRB400, the main bar diameter 25mm, the main bar spacing 15cm; the auxiliary bar model HRB400, the auxiliary bar diameter 20mm, the auxiliary bar spacing 20cm. The generated steel bar preview is as follows Fig.10 As shown, the generated steel bar CAD drawing is as follows Figure 11 to Figure 12 shown.

[0068] Embodiment 2: This embodiment is a system for automatically drawing construction drawings of tailwater bifurcations of a hydropower station, comprising: a parameter input module, a drawing module I, a drawing module II, an engineering quantity calculation module and a construction drawing generation module, etc.

[0069] In this example, the parameter input module is used to obtain the design parameters of the tailwater bifurcation pipe of the hydropower station entered by the user. The design parameters of the tailwater bifurcation pipe of the hydropower station include bifurcation engineering and profile parameters, excavation support parameters, structure and grouting layout parameters, and reinforcement parameters.

[0070] In this embodiment, drawing module I is used to determine the type of tailwater bifurcated pipe based on the bifurcated pipe engineering and contour parameters, and draw the contour diagram of the tailwater bifurcated pipe; drawing module II is used to draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram based on the contour diagram combined with excavation support parameters, structure and grouting layout parameters and reinforcement parameters.

[0071] In this embodiment, the engineering quantity calculation module is used to calculate the excavation quantity, structure and grouting quantity, and reinforcement quantity based on the branch pipe excavation support diagram, structure and grouting layout diagram, and reinforcement diagram, and generate a quantity table.

[0072] In this example, the construction drawing generation module is used to select the corresponding preset drawing frame based on the type of tailwater bifurcations, add the excavation support drawings, structure and grouting arrangement drawings, and reinforcement drawings to the preset positions in the drawing frame, and generate a complete construction drawing of the tailwater bifurcations of the hydropower station.

[0073] Embodiment 3: This embodiment is a storage medium on which a computer program that can be executed by a processor is stored. When the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station in Embodiment 1 are implemented.

[0074] Embodiment 4: This embodiment is a device for automatically drawing the construction drawing of a tailwater bifurcated pipe of a hydropower station, comprising a memory and a processor. The memory stores a computer program that can be executed by the processor. When the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of the hydropower station in Embodiment 1 are implemented.

Claims

1. A method for automatically drawing a construction drawing of a tailwater bifurcated pipe of a hydropower station, characterized in that: include: Obtain the tailwater bifurcated pipe design parameters of the hydropower station entered by the user, which include bifurcated pipe engineering and profile parameters, excavation support parameters, structure and grouting arrangement parameters, and reinforcement parameters; Based on the bifurcated pipe engineering and profile parameters, determine the type of tailwater bifurcated pipe and draw the profile of the tailwater bifurcated pipe; Based on the contour diagram combined with excavation support parameters, structure and grouting layout parameters and reinforcement parameters, draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram; Based on the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram, calculate the excavation quantity, structure and grouting quantity, reinforcement quantity, and generate a quantity table; Based on the type of tailwater bifurcations, the corresponding preset drawing frame is selected, and the excavation support drawing, structure and grouting arrangement drawing, and reinforcement drawing are added to the preset position in the drawing frame to generate the construction drawing of the tailwater bifurcations of the hydropower station.

2. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1, characterized in that: The branch pipe project and profile parameters include project name, main pipe azimuth, starting pile number, main pipe tunnel inner diameter, main pipe lining thickness, branch pipe inner diameter, branch pipe lining thickness, slope ratio, bifurcation angle, rounding radius of the main and branch pipe connection position, and lining concrete grade parameters.

3. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1, characterized in that: The excavation support parameters include anchor rod length, anchor rod spacing, anchor rod bending length, anchor rod penetration depth into rock, mesh sprayed concrete thickness, and mesh sprayed concrete range.

4. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1, characterized in that: The structure and grouting arrangement parameters include the rock penetration depth, row spacing, and number of holes in each row of grouting holes.

5. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1, characterized in that: The reinforcement parameters include main reinforcement model, main reinforcement diameter, main reinforcement spacing, auxiliary reinforcement model, auxiliary reinforcement diameter, and auxiliary reinforcement spacing.

6. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1, characterized in that: The types of the tailwater bifurcated pipe include a radian bifurcated pipe, a symmetrical Y-shaped bifurcated pipe, and an asymmetrical Y-shaped bifurcated pipe.

7. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 6 is characterized in that: The type of tailwater bifurcated pipe is determined based on the bifurcated pipe engineering and profile parameters, including: The bifurcation angle in the bifurcated pipe engineering and profile parameters includes the bifurcation angle of the upper part of the main pipe and the bifurcation angle of the lower part of the main pipe, both of which are decimals greater than or equal to 0; When only one of the upper fork angle and the lower fork angle is 0, the bifurcation pipe is determined to be a type B bifurcation pipe; When the upper fork angle is different from the lower fork angle and both are not 0, the fork pipe is determined to be an asymmetric Y-type fork pipe; When the upper fork angle and the lower fork angle are both not 0 and are the same, the fork pipe is determined to be a symmetrical Y-type fork pipe.

8. The method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station according to claim 1 is characterized in that: The excavation works include the rock excavation volume, the number of anchor rods, the area of ​​shotcrete, and the weight of mesh reinforcement; The said structure and grouting works include the total length of the consolidation grouting drilling holes, the total length of the copper sheet water stop, and the volume of the lining concrete; The steel bar engineering quantity includes the length of single steel bars, the number of steel bars, the weight of single steel bars at different positions of the main pipe and branch pipe, and the total weight of the main bars and auxiliary bars of the tailwater branch pipe.

9. An automatic drawing system for tailwater bifurcated pipe construction drawings of a hydropower station, characterized in that: include: The parameter input module is used to obtain the design parameters of the tailwater bifurcated pipe of the hydropower station entered by the user. The design parameters of the tailwater bifurcated pipe of the hydropower station include bifurcated pipe engineering and profile parameters, excavation support parameters, structure and grouting arrangement parameters, and reinforcement parameters; Drawing module I is used to determine the type of tailwater bifurcated pipe based on bifurcated pipe engineering and contour parameters, and draw the contour diagram of the tailwater bifurcated pipe; Drawing module II is used to draw the bifurcated pipe excavation support diagram, structure and grouting layout diagram and reinforcement diagram based on the contour diagram combined with the excavation support parameters, structure and grouting layout parameters and reinforcement parameters; The engineering quantity calculation module is used to calculate the excavation quantity, structure and grouting quantity, and steel quantity based on the bifurcated pipe excavation support diagram, structure and grouting layout diagram, and steel bar diagram, and generate the engineering quantity table; The construction drawing generation module is used to select the corresponding preset drawing frame based on the type of tailwater bifurcations, add the excavation support drawings, structure and grouting arrangement drawings, and reinforcement drawings to the preset positions in the drawing frame, and generate a complete construction drawing of the tailwater bifurcations of the hydropower station.

10. A storage medium having stored thereon a computer program executable by a processor, characterized in that: When the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station as described in any one of claims 1 to 8 are implemented.

11. An automatic drawing device for tailwater bifurcated pipe construction drawings of a hydropower station, comprising a memory and a processor, wherein the memory stores a computer program executable by the processor, and wherein: When the computer program is executed, the steps of the method for automatically drawing the construction drawing of the tailwater bifurcated pipe of a hydropower station as described in any one of claims 1 to 8 are implemented.

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