Long-distance water diversion line automatic decision and engineering quantity evaluation method and system thereof

By using an automated decision-making method with hydraulic-topographic co-constraints, the problems of disconnect between hydraulics and topography and inaccurate estimation of engineering quantities in the design of long-distance water transfer projects have been solved. This has enabled automated design and accurate calculation of engineering quantities, improving design efficiency and accuracy.

CN121543517BActive Publication Date: 2026-04-14SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD
Filing Date
2026-01-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing design of long-distance water transfer projects, hydraulics and topography are disconnected, structural type decisions rely on human experience, the accuracy of engineering quantity estimation is insufficient, the design iteration cycle is long, and inaccurate selection is easily caused by human negligence.

Method used

An automatic decision-making method with dynamic coordination of hydraulic and topographic constraints is adopted. By acquiring digital elevation model data and flow segment parameters of the survey area, hydraulic potential energy lines are generated. Combined with preset judgment threshold vectors, the line type is automatically identified, and the engineering quantity is calculated using the multi-ray intersection method and standard component templates.

Benefits of technology

It achieves coordinated linkage between hydraulics, structure, and cost, automated design, improves route selection efficiency and engineering quantity calculation accuracy, and supports dynamic adjustment throughout the entire life cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a long-distance water diversion line automatic decision and engineering quantity evaluation method and system, relates to the technical field of water conservancy engineering informatization design, and first constructs a collaborative space model based on GIS and hydraulics, generates a hydraulic potential line along the line in real time according to a starting water level and a design slope; the preset buried depth and overhead height two-way judgment threshold vector is used to automatically calculate the terrain difference value of any point of the line, and the line structure is discretized and identified as a tunnel, a aqueduct or a type of building such as a open channel; for irregular terrains, a multi-ray intersection method is used to construct a closed area, and the excavation and filling quantity of an asymmetric section is accurately calculated; finally, based on a standard component parameterized template, real-time engineering quantities of structures such as a bent and lining are dynamically calculated in combination with hydraulic elevations. The application realizes the collaborative linkage and automatic design of 'hydraulics-structure-cost'.
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Description

Technical Field

[0001] This invention relates to the field of information-based design technology for water conservancy projects, specifically to a method and system for automatic decision-making and engineering quantity assessment of long-distance water diversion routes. Background Technology

[0002] Long-distance water transfer projects involve long routes and complex terrain, encompassing various types of hydraulic structures such as open channels, tunnels, aqueducts, and inverted siphons. Currently, the following are the main technical challenges in route selection and design:

[0003] Hydraulic and topographical disconnect: Existing route selection software (such as tools developed based on CAD or general GIS platforms) mainly processes topographical geometry information and lacks real-time support from hydraulic models. When selecting routes in the plane, designers cannot perceive in real time whether the route elevation meets the gravity flow requirements, often requiring "drawing the line first, then calculating the hydraulics, and then reworking and adjusting," resulting in a long design iteration cycle.

[0004] Structural design decisions rely on human experience: When faced with undulating terrain, there is a lack of quantitative, automated mechanisms to determine whether to use "deep excavation of open channels" or "tunnels," or "high fill" or "aqueducts." Existing technologies largely depend on designers making manual judgments segment by segment, which is not only inefficient but also prone to inaccurate selection due to human error.

[0005] Insufficient accuracy in quantity estimation: Traditional auxiliary alignment systems typically use the "centerline elevation method" to estimate earthwork, ignoring the asymmetry of the topography on the left and right banks of the cross section; and for complex linear structures (such as aqueducts), it is difficult to automatically calculate the quantity of work for scaffolding at different heights based on the topographic relief, resulting in a large deviation in investment estimation. Summary of the Invention

[0006] This invention aims to address the problems of lagging hydraulic calculations, highly subjective structural selection, and inaccurate calculations of engineering quantities for complex cross-sections in existing water conveyance line designs. It provides an automatic decision-making and engineering quantity assessment method and system for long-distance water transfer lines. This approach significantly improves route selection efficiency and achieves automated design through automatic decision-making based on dynamic hydraulic-topographical constraints and refined engineering quantity calculations.

[0007] This invention is achieved through the following technical solution:

[0008] An automatic decision-making and engineering quantity assessment method for long-distance water transfer routes includes the following steps:

[0009] S1: Acquire digital elevation model data of the survey area and plane coordinate data of the initial planned route, and receive flow segment parameters and longitudinal profile control parameters for configuration; the longitudinal profile control parameters include the initial water level. and integrated design slope ;

[0010] S2: Based on the planar coordinates of the initially planned route, slice the digital elevation model data of the survey area to generate mileage along the route. Changing ground elevation curve Based on the longitudinal profile control parameters, the hydraulic potential energy lines along the route are calculated. ;

[0011] S3: Based on the aforementioned ground elevation curve and hydraulic potential energy line, calculate the values ​​at any point along the route. Difference between burial depth and overhead height at the location Based on a preset judgment threshold vector, the line is automatically discretized and initially marked as a tunnel section, aqueduct section, or open channel section.

[0012] S4: Construct a closed region using the multi-ray intersection method to calculate the cut and fill volume of the open channel section;

[0013] S5: For lines marked as different types of buildings, call the preset standard component data templates and automatically calculate the engineering quantity of tunnel sections, aqueduct sections or open channel sections through parametric mapping.

[0014] Further optimization, in step S3, The formula is:

[0015] ;

[0016] in: For designing water depth.

[0017] Further optimization involves the preset threshold vector including: minimum tunnel burial depth threshold. Control depth of tunnel entrances and exits Minimum length of tunnel Minimum overhead height of aqueduct Aqueduct scaffolding control height and minimum length of aqueduct .

[0018] In a further optimization, step S3, which involves automatically discretizing the line and initially labeling it as a tunnel section, aqueduct section, or open channel section based on a preset judgment threshold vector, includes the following judgment logic:

[0019] Tunnel section determination logic: Identify continuous sections If the maximum burial depth within the interval is... And the interval length satisfies And the two endpoints of the interval satisfy Then the section is marked as a tunnel section;

[0020] Aqueduct section determination logic: Identify continuous sections If the absolute value of the maximum elevated height within the interval is... And the interval length satisfies And the two endpoints of the interval satisfy Then the section is marked as an aqueduct section;

[0021] The logic for determining open channel sections is as follows: the remaining sections that are not marked as tunnel sections or aqueduct sections are marked as open channel sections.

[0022] Further optimizations can be made to the open channel section determination logic, based on... The relationship with the bottom elevation of the channel section further divides the channel section into excavated open channels or filled open channels.

[0023] Further optimization, step S4 specifically includes the following steps:

[0024] Taking the centerline of the line as the origin, based on the preset left side slope ratio Compared to the right slope Draw slope lines to the left and right sides respectively, and calculate the spatial intersection points of the slope lines and the TIN model surface generated by the digital elevation model data of the survey area;

[0025] If multiple intersection points exist, the valid intersection point that is furthest from the origin is selected. And construct a closed polygon surrounded by the bottom line of the canal, the slope lines of the left and right sides, the ground line and the center vertical line;

[0026] The area of ​​the left polygon was calculated using the coordinate analytical method. and the area of ​​the polygon on the right ;

[0027] For a half-cut and half-fill section where both cut and fill exist on the same side, the area is divided according to the intersection of the ground line and the road baseline. Based on the polygon area, the cut and fill section areas of the left and right banks are calculated by integration to obtain the cut volume and fill volume.

[0028] Finally, the total volume of earth and stone was obtained by calculus.

[0029] Further optimization, in step S5, the specific steps for calculating the engineering quantity of the aqueduct section include:

[0030] Based on the total length of the aqueduct Standard span and the length of the transition sections at the inlet and outlet, based on the formula Calculate the total number of shelves ;

[0031] Iterate through the station numbers of each frame. Obtain the ground elevation at this location. With hydraulic elevation ;

[0032] Then, the actual support height of each frame is dynamically calculated. ;

[0033] Finally Substitute the material consumption formula preset in the standard component parameterization template to calculate and accumulate the amount of concrete and steel reinforcement used in a single row of frames.

[0034] For further optimization, in step S5, the segmented surrounding rock ratio method should be adopted to calculate the lining work of the tunnel section proportionally according to the preset surrounding rock category.

[0035] Further optimization, the specific steps of the segmented surrounding rock proportioning method include:

[0036] According to the preset rules, the tunnel entrance and exit ends will be extended by a fixed length. It is classified as Class V surrounding rock;

[0037] Then the remaining middle section of the tunnel The surrounding rock was allocated into Class III and Class IV rock types according to a preset ratio;

[0038] Finally, the standard lining section templates for different surrounding rock types were used to calculate the quantity of work for each section.

[0039] Further solutions:

[0040] This invention also provides an automatic decision-making and engineering quantity assessment system for long-distance water transfer routes, comprising:

[0041] The data layer is used to store digital elevation model data of the survey area, line vector data, and standard component Excel template library;

[0042] A computing engine layer, which is used to execute an automatic decision-making and engineering quantity assessment method for long-distance water diversion routes;

[0043] The interaction layer provides a 3D line visualization interface, supports users to dynamically adjust longitudinal profile parameters and threshold vectors, and provides real-time feedback on engineering quantity calculation results.

[0044] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0045] 1. This invention provides an automatic decision-making and engineering quantity assessment method and system for long-distance water diversion routes. First, a collaborative spatial model based on GIS and hydraulics is constructed. Based on the initial water level and design gradient, hydraulic potential energy lines along the route are generated in real time. Using preset bidirectional threshold vectors for burial depth and overhead height, the terrain difference at any point along the route is automatically calculated, discretizing the route structure into structures such as tunnels, aqueducts, or open channels. For irregular terrain, a multi-ray intersection method is used to construct closed regions, accurately calculating the cut and fill volumes of asymmetric sections. Finally, based on standard component parametric templates and combined with dynamic hydraulic elevation calculations, the real-time engineering quantities of structures such as frames and linings are calculated. This invention effectively solves the problems of lagging hydraulic calculations, reliance on manual experience for structural selection, and large errors in engineering quantity estimation for complex terrain in traditional route selection design, achieving collaborative linkage and automated design of "hydraulic-structure-cost".

[0046] 2. The present invention provides an automatic decision-making and engineering quantity assessment method and system for long-distance water diversion routes, which realizes automated route selection with "hydraulic-structure" coordination: transforming traditional manual experience judgment into computer-based automatic decision-making based on quantitative thresholds, thus greatly improving route selection efficiency.

[0047] 3. The present invention provides an automatic decision-making and engineering quantity assessment method and system for long-distance water diversion routes, which improves the accuracy of engineering quantity calculation: the "multi-ray intersection method" solves the problem of large earthwork calculation error in asymmetrical mountainous terrain; and the "parametric decomposition of standard components" realizes the refined calculation of linear hydraulic structures according to terrain undulations.

[0048] 4. This invention provides an automatic decision-making and engineering quantity assessment method and system for long-distance water diversion routes, supporting dynamic adjustment throughout the entire lifecycle: when adjusting the longitudinal slope... In this way, the system can automatically recalculate the hydraulic lines, thereby triggering the automatic re-determination of the structure type (such as the automatic conversion of open channel to tunnel), realizing true parametric design. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0050] Figure 1 A schematic diagram of the overall process of the evaluation method provided by the present invention;

[0051] Figure 2This is a schematic diagram of the difference analysis and structural determination logic between the hydraulic potential energy line and the ground line in Embodiment 3 of the present invention;

[0052] Figure 3 This is a schematic diagram illustrating the calculation principle of excavation and filling for an asymmetric cross-section of a trapezoidal open channel in Embodiment 3 of the present invention.

[0053] Figure 4 This is a schematic diagram of the standard component template data structure and calculation logic in Embodiment 3 of the present invention. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0055] Example 1: This Example 1 provides an automatic decision-making and engineering quantity assessment method for long-distance water diversion routes, such as... Figure 1 As shown, the specific steps include the following:

[0056] Step S1: Data baseboard construction and parameter initialization;

[0057] Acquire digital elevation model (DEM) data of the survey area and plane coordinate data of the initial planned route; receive user-configured flow section parameters (including design flow rate and roughness) and longitudinal profile control parameters (including initial water level). Comprehensive design of slope ).

[0058] Step S2: Construct a hydraulic-topography collaborative spatial model;

[0059] Based on the aforementioned planar coordinate data, the DEM data is sliced ​​and sampled to generate mileage along the route. Changing ground elevation curve Meanwhile, based on the initial water level and integrated design slope According to the formula Real-time generation of hydraulic potential energy lines along the route (i.e., the design water level).

[0060] Step S3: Automatic discretization decision based on bidirectional threshold structure type;

[0061] Calculate any point on the line Difference between burial depth and overhead height ( (For design water depth). A threshold vector is set, including the minimum burial depth threshold for the tunnel. Control depth of tunnel entrances and exits Minimum overhead height of aqueduct Aqueduct scaffolding control height Execute the following automatic determination logic:

[0062] (1) Tunnel section determination: If the continuous interval And the maximum value in the interval And the two endpoints of the interval satisfy If the section is marked as a tunnel section, then the remaining section is an open channel section.

[0063] (2) Aqueduct section determination: If the continuous interval And the maximum absolute value of the interval And the two endpoints of the interval satisfy If so, then the section is marked as an aqueduct section, and the rest is an open channel (fill) section.

[0064] (3) Determination of open channel sections: For sections not marked as tunnels or aqueducts, they are initially assumed to be open channels; according to The positive and negative values ​​are further divided into excavated open channels or filled open channels.

[0065] Step S4: Construct a closed region using the multi-ray intersection method to achieve accurate calculation of asymmetric cross-sections under irregular terrain;

[0066] For open channel sections, virtual excavation / backfill slope lines are constructed based on the centerline of the channel and the bottom width of the left and right sides, the slope ratio of the left side, and the slope ratio of the right side. The spatial intersections of the rays and the irregular triangular network (TIN) of the DEM are calculated to construct irregular polygonal closed regions. The excavation and backfill cross-sectional areas of the left and right banks are calculated respectively, and the total earthwork volume is obtained by calculus.

[0067] Step S5: Calculate the structural quantities parametrically based on standard component templates;

[0068] For sections of the line marked as aqueducts or tunnels, a pre-set standard component data template (containing the geometric dimensions and material consumption formulas of standard components) is invoked.

[0069] (1) For the aqueduct section: The number of standard frames is automatically calculated based on the line length and standard span; the ground elevation of each frame is obtained by traversing the position of each frame. With hydraulic elevation The support height of each frame is dynamically calculated, and the amount of concrete and steel reinforcement used for a single frame is calculated accordingly.

[0070] (2) For tunnel sections: The length of the transition section at the entrance and exit is automatically deducted based on the chainage of the entrance and exit, and the lining work is calculated in sections according to the preset proportion of surrounding rock categories (such as the proportion of Class III, Class IV and Class V surrounding rock).

[0071] Example 2: Based on Example 1, this Example 2 also provides several implementation cases.

[0072] (1) Automatic structure type determination algorithm based on hydraulic-topographic difference, such as Figure 2 The diagram shown is a schematic diagram of the difference analysis between the hydraulic potential energy line and the ground line and the logic of structural determination, that is, a schematic diagram of the structural determination principle based on the collaboration of GIS and hydraulics.

[0073] In this embodiment, the system has a preset structural determination state mechanism. Taking aqueduct determination as an example: the system determines the structural state in steps along the track direction. Perform a scan. First, calculate the elevation difference sequence between the waterline and the groundline. When an elevation difference is detected... When the object is suspended in mid-air, it enters the "suspended candidate state" and begins to accumulate and record the suspension length. and maximum suspension height If in a continuous sequence, Exceeded the user-configured minimum overhead height at mid-span of the aqueduct. If the system detects a value less than "Aqueduct Overhead Starting Point Control Height", then the attribute of the candidate segment is locked as "Aqueduct". The system then backtracks to both ends of the segment, searching for a height difference whose absolute value is less than "Aqueduct Overhead Starting Point Control Height". The points marked "" are used as the starting and ending chainages of the aqueduct. Sections outside the starting and ending chainages and still in a suspended state are automatically marked as "high embankment open channel" by the system.

[0074] (2) Asymmetric open channel earthwork calculation based on topographic intersection, such as Figure 3 The diagram shown illustrates the principle of calculating the excavation and filling volume of an asymmetric cross-section of a trapezoidal open channel.

[0075] In this embodiment, for trapezoidal open channel cross-sections, the problem of earthwork calculation error caused by the asymmetry of the left and right banks in mountainous terrain is addressed. The calculation logic is as follows:

[0076] 1) Left side excavation calculation: Taking the left end point of the canal bottom as the origin, based on the preset slope ratio... Draw a slope line to the left .

[0077] 2) Inspect the left slope line Intersection with the surface of the TIN model generated by DEM.

[0078] 3) If multiple intersection points exist (e.g., in the case of complex terrain), take the valid intersection point that is furthest from the origin. .

[0079] 4) Construct a closed polygon bounded by the channel bottom, slope line, ground line, and center perpendicular line. Calculate the area of ​​this polygon using coordinate analysis, which is the area of ​​the excavation section on the left side.

[0080] 5) Similarly, calculate the excavation on the right, the filling on the left, and the filling on the right.

[0081] 6) Special handling is applied to the “half-cut, half-fill” situation: when there are both cut and fill areas on the same side (determined by the intersection of the ground line and the road baseline), the integral calculation is performed separately.

[0082] (3) Parameterized dynamic quantity calculation of engineering works based on standard component templates, such as Figure 4 The diagram shown is a logical block diagram of standard component parameterization and automated quantity calculation. The left side displays a tree-like engineering structure based on flow segment decomposition, the top shows an Excel template for defining component geometric attributes and material calculation rules, and the right side shows the quantity aggregation formula and adaptive height calculation formula used by the calculation engine when processing specific components.

[0083] In this embodiment, the system introduces a "standard component template." Taking an aqueduct as an example, the template defines two types of components: the "channel body" and the "framework." The user configures the material calculation formula for the framework in the interface, for example: The system first calculates based on the total length of the aqueduct. and standard span Calculate the total number of shelves Then, iterate through the first... The station number where the frame is located Obtain the ground elevation at this location. and hydraulic elevation Calculate the actual height of the frame. .Will Substituting the material formula above, we obtain the precise engineering quantity of the frame structure. Finally, we sum up all the frames to get the total quantity.

[0084] Example 3: Based on Example 1, Example 3 further provides an automatic decision-making and engineering quantity assessment system for long-distance water diversion routes. The specific scheme includes:

[0085] The data layer is used to store digital elevation model data of the survey area, line vector data, and standard component Excel template library;

[0086] A computing engine layer, which is used to execute an automatic decision-making and engineering quantity assessment method for long-distance water diversion routes as described in Example 1;

[0087] The interaction layer provides a 3D line visualization interface, supports users to dynamically adjust longitudinal profile parameters and threshold vectors, and provides real-time feedback on engineering quantity calculation results.

[0088] Secondly, those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0089] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0090] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0091] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0092] Those skilled in the art will understand that all or part of the steps in the above facts and methods can be implemented by a program instructing related hardware. The program or the program described therein can be stored in a computer-readable storage medium. When the program is executed, it includes the following steps: at this time, the corresponding method steps are introduced. The storage medium can be ROM / RAM, magnetic disk, optical disk, etc.

[0093] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for automatic decision-making and engineering quantity assessment of long-distance water transfer routes, characterized in that, Includes the following steps: S1: Acquire digital elevation model data of the survey area and plane coordinate data of the initial planned route, and receive flow segment parameters and longitudinal profile control parameters for configuration; the longitudinal profile control parameters include the initial water level. and integrated design slope ; S2: Based on the planar coordinates of the initially planned route, slice the digital elevation model data of the survey area to generate mileage along the route. Changing ground elevation curve Based on the longitudinal profile control parameters, the hydraulic potential energy lines along the route are calculated. ; S3: Based on the aforementioned ground elevation curve and hydraulic potential energy line, calculate the values ​​at any point along the route. Difference between burial depth and overhead height at the location Based on a preset judgment threshold vector, the line is automatically discretized and initially marked as a tunnel section, aqueduct section, or open channel section. S4: Construct a closed region using the multi-ray intersection method to calculate the cut and fill volume of the open channel section; S5: For lines marked as different types of buildings, call the preset standard component data templates and automatically calculate the engineering quantity of tunnel sections, aqueduct sections or open channel sections through parametric mapping.

2. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 1, characterized in that, In step S3 The formula is: ; in: For designing water depth.

3. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 1, characterized in that, The preset threshold vector includes: minimum burial depth threshold for tunnels. Control depth of tunnel entrances and exits Minimum length of tunnel Minimum overhead height of aqueduct Aqueduct scaffolding control height and minimum length of aqueduct .

4. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 3, characterized in that, In step S3, the step of automatically discretizing and initially marking the line as a tunnel section, aqueduct section, or open channel section based on a preset judgment threshold vector includes the following judgment logic: Tunnel section determination logic: Identify continuous sections If the maximum burial depth within the interval is... And the interval length satisfies And the two endpoints of the interval satisfy Then the section is marked as a tunnel section; Aqueduct section determination logic: Identify continuous sections If the absolute value of the maximum elevated height within the interval is... And the interval length satisfies And the two endpoints of the interval satisfy Then the section is marked as an aqueduct section; The logic for determining open channel sections is as follows: the remaining sections that are not marked as tunnel sections or aqueduct sections are marked as open channel sections.

5. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 4, characterized in that, In the aforementioned open channel section determination logic, it is also possible to base on The relationship with the bottom elevation of the channel section further divides the channel section into excavated open channels or filled open channels.

6. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 1, characterized in that, The specific steps of step S4 include: Taking the centerline of the line as the origin, based on the preset left side slope ratio Compared to the right slope Draw slope lines to the left and right sides respectively, and calculate the spatial intersection points of the slope lines and the TIN model surface generated by the digital elevation model data of the survey area; If multiple intersection points exist, the valid intersection point that is furthest from the origin is selected. And construct a closed polygon surrounded by the bottom line of the canal, the slope lines of the left and right sides, the ground line and the center vertical line; The area of ​​the left polygon was calculated using the coordinate analytical method. and the area of ​​the polygon on the right ; For a half-cut and half-fill section where both cut and fill exist on the same side, the area is divided according to the intersection of the ground line and the road baseline. Based on the polygon area, the cut and fill section areas of the left and right banks are calculated by integration to obtain the cut volume and fill volume. Finally, the total volume of earth and stone was obtained by calculus.

7. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 1, characterized in that, In step S5, the specific steps for calculating the engineering quantity of the aqueduct section include: Based on the total length of the aqueduct Standard span and the length of the transition sections at the inlet and outlet, based on the formula Calculate the total number of shelves ; Iterate through the station numbers of each frame. Obtain the ground elevation at this location. With hydraulic elevation ; Then, the actual support height of each frame is dynamically calculated. ; Finally Substitute the material consumption formula preset in the standard component parameterization template to calculate and accumulate the amount of concrete and steel reinforcement used in a single row of frames.

8. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 1, characterized in that, In step S5, the segmented surrounding rock ratio method is required to calculate the lining work of the tunnel section proportionally according to the preset surrounding rock category.

9. The method for automatic decision-making and engineering quantity assessment of long-distance water diversion routes according to claim 8, characterized in that, The specific steps of the segmented surrounding rock proportioning method include: According to the preset rules, the tunnel entrance and exit ends will be extended by a fixed length. It is classified as Class V surrounding rock; Then the remaining middle section of the tunnel The surrounding rock was allocated into Class III and Class IV rock types according to a preset ratio; Finally, the standard lining section templates for different surrounding rock types were used to calculate the quantity of work for each section.

10. An automatic decision-making and engineering quantity assessment system for long-distance water diversion routes, characterized in that, include: The data layer is used to store digital elevation model data of the survey area, line vector data, and standard component Excel template library; A computing engine layer, wherein the computing engine layer is used to execute an automatic decision-making and engineering quantity assessment method for long-distance water diversion routes as described in any one of claims 1-9; The interaction layer provides a 3D line visualization interface, supports users to dynamically adjust longitudinal profile parameters and threshold vectors, and provides real-time feedback on engineering quantity calculation results.

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