Method for Generating Core Structure Tree of Quality Cost Sheet for Digital Construction Management of Highways

Abstract

This invention provides a method for generating a core structure tree for quality cost estimates in digital highway construction management. The method includes: 1. Constructing a hierarchical structure tree: Decomposing the project according to the hierarchy of unit project, sub-project, component, and item / sub-item project to construct a core structure tree for quality cost estimates; 2. Defining coding rules: Establishing unified coding rules and assigning unique codes to each level of the project; 3. Implementing mode conversion: When performing quality management operations, converting the core structure tree for quality cost estimates into a quality inspection and evaluation structure tree; when performing cost management operations, converting the core structure tree for quality cost estimates into a measurement ledger structure tree; 4. Establishing data association: Linking the quality inspection results of item / sub-item projects through component codes, determining whether measurement can be performed based on the quality inspection results, and achieving data sharing between measurement and quality inspection. This invention solves the problem of the difficulty in automatically mapping the traditional dual-core structure trees of quality inspection and evaluation structure trees and measurement ledger structure trees.

Description

Technical Field

[0001] This invention relates to the field of engineering construction management technology, specifically to a method for generating a core structure tree for digital construction management quality cost estimates for highways. Background Technology

[0002] Quality control and cost control are two important objectives of highway construction management. While their functions are distinct, they are also interconnected.

[0003] Firstly, quality management is based on the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017), which divides the construction drawings into unit projects, sub-projects, and sub-items / sub-sub-items, and establishes a quality inspection and evaluation structure tree to carry out quality inspection and evaluation and quality inspection data management.

[0004] An example of a quality inspection assessment structure tree is shown in Table 1:

[0005] Table 1 Example of a quality inspection and evaluation structure tree

[0006]

[0007] Secondly, compiling measurement ledgers is a fundamental task in cost management. Measurement ledgers are created based on the measurement rules of the bill of quantities stipulated in the contract. The construction drawings are broken down into structural units from large to small, from overall to partial, down to the smallest measurement unit. The smallest measurement unit is then linked to the bill of quantities, establishing a measurement ledger structure tree for project measurement and cost management.

[0008] An example of a metering ledger structure tree is shown in Table 2:

[0009] Table 2 Example of Measurement Ledger Structure Tree

[0010]

[0011] Third, engineering measurement is based on the premise that the engineering entity passes quality inspection and that the quality inspection data is complete. To facilitate management and achieve business interoperability and data collaboration, the measurement ledger structure tree and the quality inspection evaluation structure tree should be mapped through coding. However, due to the differences between the two structure tree systems and their different division methods, it is difficult to match the mapping relationship. In practice, the mapping relationship is often established manually one by one. Because the two structure trees are huge, manually establishing the mapping relationship is labor-intensive and prone to errors, which restricts the automation and intelligence of digital construction management.

[0012] In practice, a quality inspection and evaluation structure tree is sometimes used instead of a measurement ledger structure tree. This involves linking a specific sub-item / sub-sub-item in the quality inspection and evaluation structure tree to the measurement bill of quantities. Since the measurement unit is the physical entity of the project, while sub-items are divided according to construction procedures, processes, or materials, the relationship between sub-items and measurement units is often many-to-one or one-to-many. Furthermore, some sub-items are priced but not measured (integrated into other sub-items). Therefore, this approach only meets the basic needs of project measurement but is not conducive to cost analysis and cost management. Summary of the Invention

[0013] In view of the above, the present invention provides a method for generating a core structure tree of quality cost in digital construction management of highways, which solves the problem that existing quality inspection and measurement structure trees are difficult to map automatically, and realizes business interoperability and data collaboration.

[0014] The technical solution of the present invention:

[0015] This invention provides a method for generating a core structure tree for quality cost estimates in digital highway construction management, comprising:

[0016] I. Constructing a hierarchical structure tree: Decompose the project according to the hierarchy of unit project, sub-project, component (i.e. the smallest unit of measurement), and sub-item / sub-sub-item project to construct the core structure tree of the quality cost sheet;

[0017] II. Define coding rules: Establish unified coding rules and assign unique codes to each level of the project;

[0018] III. Implement mode conversion: Based on different management needs, the core structure tree of the quality cost sheet will be converted into the quality inspection and evaluation structure tree and the measurement ledger structure tree respectively;

[0019] IV. Establish data association: Link the quality inspection results of sub-projects / sub-sub-projects through component codes, determine whether measurement can be carried out based on the quality inspection results, and realize the sharing of measurement and quality inspection data;

[0020] In the implementation mode conversion, when converting the core structure tree of the quality cost sheet into the quality inspection and evaluation structure tree, the component level is hidden, the sub-items under the same component are aggregated to form sub-items, and the relevant information of the component is attached to the sub-item information.

[0021] When converting the core structure tree of the quality cost sheet into the structure tree of the measurement ledger, the sub-item / sub-sub-item level is hidden, and the data is directly displayed at the component level.

[0022] Furthermore, in constructing the hierarchical structure tree, unit projects and sub-projects are divided according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017); components are divided according to the smallest unit of measurement based on the bill of quantities measurement rules; and sub-items / sub-items are divided based on component technology, procedures, or materials according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017).

[0023] Furthermore, in defining the coding rules, the coding uses specified symbols to separate the engineering information at each level.

[0024] Furthermore, in defining the coding rules, the structure tree coding is a coding system that identifies each level of the project in the core structure tree of the entire quality cost sheet. The structure tree coding is expressed in a tree structure of unit project, sub-project, component, and sub-item / sub-sub-item project. The unit project, sub-project, and component codes are separated by ".", and the component and sub-item / sub-item project codes are separated by ":".

[0025] Furthermore, the project category code is a component of the structure tree code, used to clarify the category to which each level of project belongs; the project category code consists of the project category code and the sequence number.

[0026] Furthermore, the project category code consists of English letters; the serial number consists of Arabic numerals.

[0027] Furthermore, in establishing data associations, during engineering measurement, the quality inspection results of the sub-item / sub-sub-item corresponding to the component code are used as the basis. If the quality inspection is qualified, measurement is allowed; if the quality inspection is unqualified, measurement is prohibited.

[0028] Furthermore, for components with multiple sub-projects / sub-sub-projects, it is not necessary to wait for all sub-projects / sub-sub-projects to pass quality inspection before measurement can be performed. Instead, a measurement ratio can be allocated for each sub-project / sub-sub-project, and the component can be measured according to the allocated ratio after each sub-project / sub-sub-project passes quality inspection.

[0029] The method for generating a core structure tree for quality cost estimates in digital highway construction management provided by this invention has the following beneficial effects:

[0030] I. Improve management efficiency and accuracy

[0031] Streamlined Management Processes: By constructing a core structure tree for quality and cost estimates, the previously independent and complex quality inspection and evaluation structure tree and measurement ledger structure tree are integrated into one, eliminating the cumbersome process of manually establishing the mapping relationship between the two. This allows quality management and cost management in highway construction management to be carried out based on the same data structure, reducing a large number of repetitive operations, significantly shortening the management process, and significantly improving work efficiency.

[0032] Precise data acquisition: A unified coding system assigns a unique code to each level of the project, acting like a unique "label" for all types of project information. Whether querying detailed information about a specific component or obtaining quality inspection and measurement data for a designated sub-project, the system can quickly and accurately locate the data, avoiding confusion and errors during the data search process and improving the efficiency and accuracy of data acquisition.

[0033] II. Strengthen the synergy between quality management and cost management

[0034] Quality Assurance: After establishing data linkage, project measurement is based on the quality inspection results of each sub-item / sub-sub-item, and only those that pass the quality inspection can be measured. This mechanism fundamentally eliminates the possibility of measuring substandard parts, prompting construction units to pay more attention to project quality and strictly control quality during the construction of each sub-item / sub-sub-item, thereby effectively ensuring the overall quality of the highway project.

[0035] Precise cost control: The measurement ledger structure tree can be quickly generated according to management needs and accurately reflects the actual cost of the project. Combined with quality inspection data sharing, it provides a clear understanding of the project quality status corresponding to each measurement unit, avoiding increased rework costs due to quality issues, achieving precise control over project costs, and effectively preventing cost overruns.

[0036] III. Enhancing the Level of Digital Management

[0037] Data Interoperability and Sharing: Seamless integration and data sharing between quality and cost management systems break down the data barriers between them. Personnel from different departments can access the information they need in real time on the same data platform. For example, quality management personnel can promptly access measurement data, and cost management personnel can grasp the project quality status, achieving efficient data flow and full utilization, and providing comprehensive and accurate data support for project decision-making.

[0038] Facilitates system integration: The unified structure tree and coding rules facilitate the integration of various highway engineering management systems. Whether it's a progress management system, a materials management system, or other related systems, they can all interact and share data based on the core structure tree of the quality and cost estimate and its coding rules. This makes it easy to build a comprehensive and integrated digital management platform for highway engineering, thereby improving the overall digital management level of the project.

[0039] IV. Reducing Management Costs and Risks

[0040] Reduced labor costs: The workload of manually establishing tree structure mappings is reduced, thus lowering labor costs. Simultaneously, improved data accuracy reduces the costs of repetitive work and erroneous decisions caused by data errors.

[0041] Enhanced risk control: Timely and accurate quality and cost data can help managers identify potential quality problems and cost risks in advance. For example, when the failure rate of multiple sub-projects of a certain component is high, the construction plan can be adjusted in a timely manner; if anomalies are found in the engineering measurement of a certain area, the cause can be quickly investigated, effectively reducing the risk of project quality problems and cost overruns.

[0042] This invention simplifies management processes, improves data acquisition accuracy, strengthens the synergy between quality and cost management, enhances digital management level, and reduces management costs and risks by constructing a core structure tree for quality and cost estimates, defining coding rules, implementing mode conversion, and establishing data associations. This significantly improves the efficiency and quality of digital management for highway projects.

[0043] The preferred embodiments of the present invention and their beneficial effects will be further described in detail with reference to specific implementation methods. Attached Figure Description

[0044] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but should not be construed as limiting the invention. In the drawings:

[0045] Figure 1 This is a flowchart of the method for generating the core structure tree of the quality cost sheet for digital construction management of highways according to the present invention;

[0046] Figure 2 This is a diagram showing the core structure tree encoding format of the quality cost sheet for digital construction management of highways in this invention.

[0047] Figure 3 This is a transformation diagram of the quality inspection and evaluation structure tree of this invention;

[0048] Figure 4 This is a transformation diagram of the measurement ledger structure tree of the present invention. Detailed Implementation

[0049] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] In highway engineering construction management, engineering measurement is carried out at the smallest measurement unit, and the measurement ledger structure tree is divided according to the engineering entity structure; quality inspection and evaluation are carried out step by step according to sub-item projects, sub-section projects, and unit projects, and sub-item projects are divided according to construction procedures, technology, or materials.

[0051] To meet the needs of quality inspection and evaluation and digital management of quality inspection data, as well as the needs of digital management of engineering measurement and cost, the two are organically combined to establish a direct connection between measurement units (i.e., components) and sub-projects. Through the "two-in-one" approach, a "single core structure tree" is used as the carrier to achieve seamless connection and interconnection between quality inspection data and engineering measurement.

[0052] Please see Figure 1 This invention provides a method for generating a core structure tree for a quality cost estimate in digital highway construction management, comprising:

[0053] I. Constructing a Hierarchical Structure Tree: Decompose the project into hierarchical levels of unit project, sub-project, component, and item / sub-item project to construct a core structure tree for the quality and cost estimate. See Table 3.

[0054] Table 3 Example of the core structure tree for quality cost estimates

[0055]

[0056] In the hierarchical structure tree, unit projects and sub-projects are divided according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTGF80 / 1—2017); components are divided according to the smallest unit of measurement based on the bill of quantities measurement rules of the construction project; sub-items / sub-items are divided according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017) based on component technology, procedures, materials, etc.

[0057] Sub-items / sub-sub-items refer to the sub-items included in a component. If there are multiple identical sub-items under the same sub-project (e.g., in the table above, the sub-project "Foundation and Substructure (0# Platform)" corresponds to multiple identical sub-items "Reinforcing Steel Processing and Installation"), then each identical sub-item is considered a sub-item, and all identical sub-items are combined into one sub-item (e.g., in the table above, the sub-items corresponding to the sub-project "Foundation and Substructure (0# Platform)" are "Reinforcing Steel Processing and Installation, Drilled Piles, Abutment Cap, Bearing Pad, Back Wall, and Backfill"). The concept of sub-items / sub-sub-items exists because engineering measurement must be based on quality inspection qualification, but quality assessment does not need to be conducted for each sub-item; it only needs to be assessed once by combining the sub-items into a single sub-item. Sub-items / sub-sub-items are the bottom layer of the quality inspection and assessment structure tree, directly related to the components in the single core structure tree, achieving seamless integration of quality inspection and measurement.

[0058] II. Definition of Coding Rules: Based on the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017) and the bill of quantities measurement rules, a unified coding rule is formulated to assign a unique code to each level of engineering. The code separates the engineering information at each level using designated symbols.

[0059] Based on the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017) and the measurement rules of the highway engineering bill of quantities, a standard for the division and coding of the core structure tree of the quality cost sheet is established to provide a basis for the application of the core structure tree of the quality cost sheet. Example Table 4.

[0060] Table 4. Example of Project Division and Coding Standards in the Core Structure Tree of Quality Cost Sheet

[0061]

[0062] The “Identification” column in the table above includes five project categories: unit project, sub-project, component, sub-item project, and sub-sub-item project. If there is no sub-item project / sub-sub-item project category under the project category “component”, it means that the component is not included in the quality inspection and evaluation scope.

[0063] The tree structure coding follows a hierarchical format: "Unit Project → Sub-project → Sub-sub-project (if any) → Component → Item / Sub-item Project". Unit project, sub-project / sub-sub-project, and component codes are separated by a period (."), and component and item / sub-item project codes are separated by a colon (:). The coding format is as follows: Figure 2 .

[0064] Structure tree coding is a coding system that identifies each level of project within the core structure tree of the entire quality cost estimate. It is constructed according to specified rules to clearly present the hierarchical relationship of projects. Project category coding is an important component of structure tree coding, used to clarify the category to which each level of project belongs.

[0065] The project category code consists of a project category code and a serial number. The project category code consists of two uppercase English letters, representing the project category; the serial number consists of three Arabic numerals, representing the sequence of the project category (which, which position, which number, etc.).

[0066] Encoding Example 1:

[0067] QL001.JC000.ZJ001:GJ001

[0068] Meaning: Bridge (Bridge No. 001) (Unit Project) - Foundation and Substructure (Abutment No. 0) (Sub-project) - Pile Foundation (No. 1) (Component) - Reinforcing Steel Processing and Installation (Item Project).

[0069] Encoding Example 2:

[0070] SD001.CQ001.EC001:GJ001

[0071] Meaning: Tunnel (Tunnel No. 001) (Unit Project) - Tunnel Lining (Section 001) (Sub-project) - Secondary Lining (Section 1) (Component) - Reinforcing Steel Processing and Installation (Item Project).

[0072] 3. Implement mode conversion: When conducting quality management business, convert the core structure tree of the quality cost sheet into a quality inspection and evaluation structure tree; when conducting cost management business, convert the core structure tree of the quality cost sheet into a measurement ledger structure tree.

[0073] 1. When conducting quality management operations, hide the component hierarchy, group sub-items under the same sub-project into sub-items, and attach component information to the sub-item information to form a quality inspection and evaluation structure tree. An example is shown in Table 5.

[0074] 2. When performing cost management tasks, hide the sub-item / sub-sub-item levels and directly display the component level to form a measurement ledger structure tree. See Table 6 for an example.

[0075] Table 5 shows the quality inspection and evaluation structure tree formed after hiding the measurement units.

[0076]

[0077]

[0078] Table 6 shows the measurement ledger structure tree generated after hiding sub-items / sub-items.

[0079]

[0080] Based on the application scenario requirements, the application mode of the quality inspection and evaluation structure tree and the measurement ledger structure tree is transformed according to the core structure tree of the quality cost sheet in the application system.

[0081] ① Converting a single-core tree structure into a quality inspection and evaluation tree structure

[0082] Quality inspection and evaluation are based on the quality inspection and evaluation structure tree.

[0083] By hiding the component hierarchy, sub-items are grouped into individual items, and component information is appended to the sub-item information (to clarify the project location), thus obtaining the quality inspection and evaluation structure tree. An example is shown below. Figure 3 .

[0084] ② Convert the single-core structure tree into a measurement ledger structure tree

[0085] Engineering measurement and cost analysis are based on the measurement ledger structure tree.

[0086] Hiding the sub-items / sub-items will yield the measurement ledger structure tree, as shown in the example below. Figure 4 .

[0087] Based on the core structure tree of the quality cost sheet, it is possible to either group sub-items into sub-items by hiding components and attach component information to sub-item information to form a quality inspection and evaluation structure tree, or form a measurement ledger structure tree by hiding sub-items / sub-items. This satisfies the needs of both quality management and cost management, seamlessly connects quality inspection and engineering measurement, realizes interoperability and data sharing between quality and cost business, and greatly improves the level and efficiency of digital management of projects.

[0088] IV. Establish data association: Link the quality inspection results of sub-projects / sub-sub-projects through component codes, determine whether measurement can be carried out based on the quality inspection results, and realize the sharing of measurement and quality inspection data.

[0089] During project measurement, the quality inspection results of the sub-item / sub-sub-item corresponding to the component code (i.e., the sub-item / sub-sub-item after the component code ":") shall be used as the basis. If the quality inspection is qualified, measurement is allowed; if the quality inspection is unqualified, measurement is prohibited. For components with multiple sub-items / sub-sub-items, a measurement ratio may be allocated to each sub-item / sub-sub-item if necessary, and measurement shall be carried out according to the allocated ratio after the quality inspection is qualified.

[0090] In highway engineering construction management, quality inspection and engineering measurement are two key links. In the past, the lack of effective data correlation between the two led to low management efficiency. However, the "data correlation" technique proposed in this application closely links the quality inspection results of sub-projects and sub-sub-projects with engineering measurement through component coding as a key link.

[0091] Component codes are the core identifiers of the entire data association system. Each component code corresponds to a unique component, and the code portion after the colon (:) precisely points to the related sub-item and sub-sub-item projects. During actual engineering measurement operations, the system quickly retrieves and obtains the corresponding sub-item / sub-sub-item project quality inspection results based on the component code. If the quality inspection result shows "qualified," it means that this part of the project has met the quality standards and measurement conditions, thus allowing measurement work to proceed. Conversely, if the quality inspection fails, it indicates that there are problems with the project quality, and measurement is prohibited. This effectively avoids measuring and paying for unqualified projects, ensuring the seriousness of project quality and cost management.

[0092] For components comprising multiple sub-projects / sub-sub-projects, it is not necessary for all sub-projects / sub-sub-projects to pass quality inspection before measurement. If necessary, a measurement ratio can be allocated based on the procedures and importance of each sub-project / sub-sub-project. This ratio is set based on the actual project conditions and management needs. For example, if the 7-day setting strength grade of concrete meets the corresponding requirements, 70% is measured; if the 28-day setting strength grade meets the requirements, the remaining 30% is measured. After each sub-project / sub-sub-project passes quality inspection, the component is measured according to the pre-allocated measurement ratio, making the measurement results more scientific and reasonable, and accurately reflecting the actual project value.

[0093] The method for generating a core structure tree for quality cost estimates in digital highway construction management provided by this invention has the following beneficial effects:

[0094] I. Improve management efficiency and accuracy

[0095] Streamlined Management Processes: By constructing a core structure tree for quality and cost estimates, the previously independent and complex quality inspection and evaluation structure tree and measurement ledger structure tree are integrated into one, eliminating the cumbersome process of manually establishing the mapping relationship between the two. This allows quality control and cost control in highway construction management to be carried out based on the same data structure, reducing a large number of repetitive operations, significantly shortening the management process, and significantly improving work efficiency.

[0096] Precise data acquisition: A unified coding system assigns a unique code to each level of the project, much like attaching a unique "label" to various types of project information. Whether querying the measurement information of a specific component or obtaining the quality inspection information of a specified sub-project, the data can be located quickly and accurately, avoiding confusion and errors in the data search process and improving the efficiency and accuracy of data acquisition.

[0097] II. Strengthen the synergy between quality management and cost management

[0098] Quality Assurance: After establishing data linkage, engineering measurement is based on the quality inspection results of sub-projects and sub-sub-projects; only those that pass quality inspection can be measured. This mechanism fundamentally eliminates the possibility of measuring substandard parts, prompting construction units to pay more attention to project quality and strictly control quality during the construction of each sub-project and sub-sub-project, thereby effectively ensuring the overall quality of the highway project.

[0099] Precise cost control: The measurement ledger structure tree can be quickly generated according to management needs and accurately reflects the actual cost of the project. Combined with quality inspection data sharing, it provides a clear understanding of the project quality status corresponding to each measurement unit, avoiding increased rework costs due to quality issues, achieving precise control over project costs, and effectively preventing cost overruns.

[0100] III. Enhancing the Level of Digital Management

[0101] Data Interoperability and Sharing: Seamless integration and data sharing between quality and cost management systems break down the data barriers between them. Personnel from different departments can access the information they need in real time on the same data platform. For example, quality management personnel can promptly access measurement data, and cost management personnel can grasp the project quality status, achieving efficient data flow and full utilization, and providing comprehensive and accurate data support for project decision-making.

[0102] Facilitates system integration: The unified structure tree and coding rules facilitate the integration of various highway engineering management systems. Whether it's a progress management system, a materials management system, or other related systems, they can all interact and share data based on the core structure tree of the quality and cost estimate and its coding rules. This makes it easy to build a comprehensive and integrated digital management platform for highway engineering, thereby improving the overall digital management level of the project.

[0103] IV. Reducing Management Costs and Risks

[0104] Reduced labor costs: The workload of manually establishing tree structure mappings is reduced, thus lowering labor costs. Simultaneously, improved data accuracy reduces the costs of repetitive work and erroneous decisions caused by data errors.

[0105] Enhanced risk control: Timely and accurate quality and cost data can help managers identify potential quality problems and cost risks in advance. For example, when the failure rate of multiple sub-projects of a certain component is high, the construction plan can be adjusted in a timely manner; if anomalies are found in the engineering measurement of a certain area, the cause can be quickly investigated, effectively reducing the risks of project quality and cost overrun.

[0106] This invention simplifies management processes, improves data acquisition accuracy, strengthens the synergy between quality and cost management, enhances digital management level, and reduces management costs and risks by constructing a core structure tree for quality and cost estimates, defining coding rules, implementing mode conversion, and establishing data associations. This significantly improves the efficiency and quality of digital management for highway projects.

[0107] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0108] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program. This computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for generating a core structure tree for quality cost estimates in digital highway construction management, characterized in that, include: I. Constructing a hierarchical structure tree: Decompose the project according to the hierarchy of unit project, sub-project, component, and item / sub-item project to construct the core structure tree of the quality cost sheet; II. Define coding rules: Establish unified coding rules and assign unique codes to each level of the project; III. Implement mode conversion: When conducting quality management business, convert the core structure tree of the quality cost sheet into a quality inspection and evaluation structure tree; when conducting cost management business, convert the core structure tree of the quality cost sheet into a measurement ledger structure tree. IV. Establish data association: Link the quality inspection results of sub-projects / sub-sub-projects through component codes, determine whether measurement can be carried out based on the quality inspection results, and realize the sharing of measurement and quality inspection data; In the implementation mode conversion, when converting the core structure tree of the quality cost sheet into the quality inspection and evaluation structure tree, the component level is hidden, the sub-items under the same component are aggregated to form sub-items, and the relevant information of the component is attached to the sub-item information. When converting the core structure tree of the quality cost sheet into the structure tree of the measurement ledger, the sub-item / sub-sub-item level is hidden and directly displayed to the component level. In defining the coding rules, the structure tree coding is a coding system that identifies each level of the project in the core structure tree of the entire quality cost sheet. The structure tree coding is expressed in a tree structure of unit project, sub-project, component, and item / sub-item project. The unit project, sub-project, and component codes are separated by "." half-width characters, and the component and item / sub-item project codes are separated by ":." half-width characters. Project category coding is a component of structure tree coding and is used to identify the category to which projects at each level belong. The project category code consists of a project category code and a serial number; The project category code consists of two uppercase English letters; the serial number consists of three Arabic numerals. In establishing data associations, when measuring engineering projects, the quality inspection results of the sub-items / sub-sub-items corresponding to the component codes are used as the basis. If the quality inspection is qualified, measurement is allowed; if the quality inspection is unqualified, measurement is prohibited. For components with multiple sub-projects / sub-sub-projects, it is not necessary to wait for all sub-projects / sub-sub-projects to pass quality inspection before measurement. Instead, a measurement ratio is allocated for each sub-project / sub-sub-project, and the component is measured according to the allocated ratio after each sub-project / sub-sub-project passes quality inspection.

2. The method for generating a core structure tree for highway digital construction management quality cost estimates according to claim 1, characterized in that, In constructing the hierarchical structure tree, unit projects and sub-projects are divided according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTGF80 / 1—2017); components are divided according to the smallest unit of measurement based on the bill of quantities measurement rules of the construction project; sub-items / sub-sub-items are divided based on component materials, processes or procedures according to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTG F80 / 1—2017).

3. The method for generating a core structure tree for quality cost estimates in digital highway construction management according to claim 1, characterized in that, In defining the coding rules, the coding uses specified symbols to separate the project information at each level.

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